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19 results on '"Bromwich, D.H."'

1. How much, how fast?: A science review and outlook for research on the instability of Antarctica's Thwaites Glacier in the 21st century

Author

Scambos, T.A., Bell, R.E., Alley, R.B., Anandakrishnan, S., Bromwich, D.H., Brunt, K., Christianson, K., Creyts, T., Das, S.B., DeConto, R., Dutrieux, P., Fricker, H.A., Holland, D., MacGregor, J., Medley, B., Nicolas, J.P., Pollard, D., Siegfried, M.R., Smith, A.M., Steig, E.J., Trusel, L.D., Vaughan, D.G., and Yager, P.L.

Published
2017
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2. THE ARCTIC SYSTEM REANALYSIS, VERSION 2: The new regional 15-km Arctic System Reanalysis, version 2, provides the accuracy and details necessary for many Arctic climate studies over the period 2000-12

Author

Bromwich, D.H., Wilson, A.B., Bai, L., Liu, Z., Barlage, M., Shih, C.-F., Maldonado, S., Hines, K.M., Wang, S.-H., Woollen, J., Kuo, B., Lin, H.-C., Wee, T.-K., Serreze, M.C., and Walsh, J.E.

Subjects
United States. National Centers for Environmental Prediction -- Analysis, United States. National Aeronautics and Space Administration -- Analysis, Numerical weather prediction -- Analysis, Arctic research -- Analysis, Meteorological research -- Analysis, Global temperature changes -- Analysis, Business, Earth sciences, Weather Research and Forecasting (Scientific software)
Abstract

ABSTRACT The Arctic is a vital component of the global climate, and its rapid environmental evolution is an important element of climate change around the world. To detect and diagnose [...]

Published
2018
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3. Characteristics of Surface “Melt Potential” over Antarctic Ice Shelves based on Regional Atmospheric Model Simulations of Summer Air Temperature Extremes from 1979/80 to 2018/19

Author

Orr, Andrew, Prenab, Deb, Clem, Kyle, Gilbert, Ella, Bromwich, D.H., Boberg, F., Colwell, Steve, Hansen, Nicolaj, Lazzara, Matthew A., Mooney, Priscilla, Mottram, Ruth H., Niwano, Masashi, Phillips, Tony, Pishniak, Denys, Tijm - Reijmer, Carleen, van de Berg, Willem Jan, Webster, Stuart, Zou, Xun, Orr, Andrew, Prenab, Deb, Clem, Kyle, Gilbert, Ella, Bromwich, D.H., Boberg, F., Colwell, Steve, Hansen, Nicolaj, Lazzara, Matthew A., Mooney, Priscilla, Mottram, Ruth H., Niwano, Masashi, Phillips, Tony, Pishniak, Denys, Tijm - Reijmer, Carleen, van de Berg, Willem Jan, Webster, Stuart, and Zou, Xun

Abstract

We calculate a regional surface “melt potential” index (MPI) over Antarctic ice shelves that describes the frequency (MPI-freq; %) and intensity (MPI-int; K) of daily maximum summer temperatures exceeding a melt threshold of 273.15 K. This is used to determine which ice shelves are vulnerable to melt-induced hydrofracture and is calculated using near-surface temperature output for each summer from 1979/80 to 2018/19 from two high-resolution regional atmospheric model hindcasts (using the MetUM and HIRHAM5). MPI is highest for Antarctic Peninsula ice shelves (MPI-freq 23%–35%, MPI-int 1.2–2.1 K), lowest (2%–3%, <0 K) for the Ronne–Filchner and Ross ice shelves, and around 10%–24% and 0.6–1.7 K for the other West and East Antarctic ice shelves. Hotspots of MPI are apparent over many ice shelves, and they also show a decreasing trend in MPI-freq. The regional circulation patterns associated with high MPI values over West and East Antarctic ice shelves are remarkably consistent for their respective region but tied to different large-scale climate forcings. The West Antarctic circulation resembles the central Pacific El Niño pattern with a stationary Rossby wave and a strong anticyclone over the high-latitude South Pacific. By contrast, the East Antarctic circulation comprises a zonally symmetric negative Southern Annular Mode pattern with a strong regional anticyclone on the plateau and enhanced coastal easterlies/weakened Southern Ocean westerlies. Values of MPI are 3–4 times larger for a lower temperature/melt threshold of 271.15 K used in a sensitivity test, as melting can occur at temperatures lower than 273.15 K depending on snowpack properties.

Published
2023

4. Characteristics of Surface “Melt Potential” over Antarctic Ice Shelves based on Regional Atmospheric Model Simulations of Summer Air Temperature Extremes from 1979/80 to 2018/19

Author

Sub Dynamics Meteorology, Marine and Atmospheric Research, Orr, Andrew, Prenab, Deb, Clem, Kyle, Gilbert, Ella, Bromwich, D.H., Boberg, F., Colwell, Steve, Hansen, Nicolaj, Lazzara, Matthew A., Mooney, Priscilla, Mottram, Ruth H., Niwano, Masashi, Phillips, Tony, Pishniak, Denys, Tijm - Reijmer, Carleen, van de Berg, Willem Jan, Webster, Stuart, Zou, Xun, Sub Dynamics Meteorology, Marine and Atmospheric Research, Orr, Andrew, Prenab, Deb, Clem, Kyle, Gilbert, Ella, Bromwich, D.H., Boberg, F., Colwell, Steve, Hansen, Nicolaj, Lazzara, Matthew A., Mooney, Priscilla, Mottram, Ruth H., Niwano, Masashi, Phillips, Tony, Pishniak, Denys, Tijm - Reijmer, Carleen, van de Berg, Willem Jan, Webster, Stuart, and Zou, Xun

Published
2023

5. State of the climate in 2018

Author

Ades, M., Adler, R., Aldeco, L.S., Alejandra, G., Alfaro, E.J., Aliaga-Nestares, V., Allan, R.P., Allan, R., Alves, L.M., Amador, J.A., Andersen, J.K., Anderson, J., Arndt, D.S., Arosio, C., Arrigo, K., Azorin-Molina, C., Bardin, M.Y., Barichivich, J., Barreira, S., Baxter, S., Beck, H.E., Becker, A., Bell, G.D., Bellouin, N., Belmont, M., Benedetti, A., Benedict, I., Bernhard, G.H., Berrisford, P., Berry, D.I., Bettio, L., Bhatt, U.S., Biskaborn, B.K., Bissolli, P., Bjella, K.L., Bjerke, J.K., Blake, E.S., Blenkinsop, S., Blunden, J., Bock, O., Bosilovich, M.G., Boucher, O., Box, J.E., Boyer, T., Braathen, G., Bringas, F.G., Bromwich, D.H., Brown, A., Brown, R., Brown, T.J., Buehler, S.A., Cáceres, L., Calderón, B., Camargo, S.J., Campbell, J.D., Campos Diaz, D.A., Cappelen, J., Carrea, L., Carrier, S.B., Carter, B.R., Castro, A.Y., Cetinic, I., Chambers, D.P., Chen, L., Cheng, L., Cheng, V.Y.S., Christiansen, H.H., Christy, J.R., Chung, E.-S., Claus, F., Clem, K.R., Coelho, C.A.S., Coldewey-Egbers, M., Colwell, S., Cooper, O.R., Cosca, C., Covey, C., Coy, L., Dávila, C.P., Davis, S.M., de Eyto, E., de Jeu, R.A.M., De Laat, J., Decharme, B., Degasperi, C.L., Degenstein, D., Demircan, M., Derksen, C., Dhurmea, K.R., Di Girolamo, L., Diamond, H.J., Diaz, E., Diniz, F.A., Dlugokencky, E.J., Dohan, K., Dokulil, M.T., Dolman, A.J., Domingues, C.M., Domingues, R., Donat, M.G., Dorigo, W.A., Drozdov, D.S., Druckenmiller, M.L., Dunn, R.J.H., Durre, I., Dutton, G.S., Elkharrim, M., Elkins, J.W., Epstein, H.E., Espinoza, J.C., Famiglietti, J.S., Farrell, S.L., Fausto, R.S., Feely, R.A., Feng, Z., Fenimore, C., Fettweis, X., Fioletov, V.E., Flemming, J., Fogt, R.L., Forbes, B.C., Foster, M.J., Francis, S.D., Franz, B.A., Frey, R.A., Frith, S.M., Froidevaux, L., Ganter, C., Garforth, J., Gerland, S., Gilson, J., Gleason, K., Gobron, N., Goetz, S., Goldenberg, S.B., Goni, G., Gray, A., Groo, J.-U., Gruber, A., Gu, G., Guard, C.C.P., Gupta, S.K., Gutiérrez, D., Haas, Christian, Hagos, S., Hahn, S., Haimberger, L., Hall, B.D., Halpert, M.S., Hamlington, B.D., Hanna, E., Hanssen-Bauer, I., Harris, I., Hazeleger, W., He, Q., Heidinger, A.K., Heim, Jr., Hemming, D.L., Hendricks, Stefan, Hernández, R., Hersbach, H.E., Hidalgo, H.G., Ho, S.-P.B., Holmes, R.M., Hu, C., Huang, B., Hubbard, K., Hubert, D., Hurst, D.F., Ialongo, I., Ijampy, J.A., Inness, A., Isaac, V., Isaksen, K., Ishii, M., Jeffries, M.O., Jevrejeva, S., Jia, G., Jiménez, C., Jin, X., John, V., Johnsen, B., Johnson, G.C., Johnson, K.S., Johnson, B., Jones, P.D., Jumaux, G., Kabidi, K., Kaiser, J.W., Karaköylü, E.M., Karlsen, S.-R., Karnauskas, M., Kato, S., Kazemi, A.F., Kelble, C., Keller, L.M., Kennedy, J., Kholodov, A.L., Khoshkam, M., Kidd, R., Killick, R., Kim, H., Kim, S.-J., King, A.D., King, B.A., Kipling, Z., Klotzbach, P.J., Knaff, J.A., Korhonen, J., Korshunova, N.N., Kramarova, N.A., Kratz, D.P., Kruger, A., Kruk, M.C., Krumpen, Thomas, Labbé, L., Ladd, C., Lakatos, M., Lakkala, K., Lander, M.A., Landschützer, P., Landsea, C.W., Lareau, N.P., Lavado-Casimiro, W., Lazzara, M.A., Lee, T.C., Leuliette, E., L�heureux, M., Li, B., Li, T., Lieser, J.L., Lim, J.-Y., Lin, I.-I., Liu, H., Locarnini, R., Loeb, N.G., Long, C.S., López, L.A., Lorrey, A.M., Loyola, D., Lumpkin, R., Luo, J.-J., Luojus, K., Lyman, J.M., Malkova, G.V., Manney, G.L., Marchenko, S.S., Marengo, J.A., Marin, D., Marquardt Collow, A.B., Marra, J.J., Marszelewski, W., Martens, B., Martínez-Güingla, R., Massom, R.A., May, L., Mayer, M., Mazloff, M., McBride, C., McCabe, M., McClelland, J.W., McEvoy, D.J., McGree, S., McVicar, T.R., Mears, C.A., Meier, W., Meijers, A., Mekonnen, A., Mengistu Tsidu, G., Menzel, W.P., Merchant, C.J., Meredith, M.P., Merrifield, M.A., Miller, B., Miralles, D.G., Misevicius, N., Mitchum, G.T., Mochizuki, Y., Monselesan, D., Montzka, S.A., Mora, N., Morice, C., Mosquera-Vásquez, K., Mostafa, A.E., Mote, T., Mudryk, L., Mühle, J., Mullan, A.B., Müller, R., Myneni, R., Nash, E.R., Nauslar, N.J., Nerem, R.S., Newman, P.A., Nicolas, J.P., Nieto, J.J., Noetzli, J., Osborn, T.J., Osborne, E., Overland, J., Oyunjargal, L., Park, T., Pasch, R.J., Pascual Ramírez, R., Pastor Saavedra, M.A., Paterson, A.M., Pearce, P.R., Pelto, M.S., Perovich, D., Petropavlovskikh, I., Pezza, A.B., Phillips, C., Phillips, D., Phoenix, G., Pinty, B., Pitts, M., Po-Chedley, S., Polashenski, C., Preimesberger, W., Purkey, S.G., Quispe, N., Rajeevan, M., Rakotoarimalala, C.L., Ramos, A.M., Ramos, I., Randel, W., Raynolds, M.K., Reagan, J., Reid, P., Reimer, C., Rémy, S., Revadekar, J.V., Richardson, A.D., Richter-Menge, J., Ricker, Robert, Ripaldi, A., Robinson, D.A., Rodell, M., Rodriguez Camino, E., Romanovsky, V.E., Ronchail, J., Rosenlof, K.H., Rösner, B., Roth, C., Rozanov, A., Rusak, J.A., Rustemeier, E., Rutishäuser, T., Sallée, J.-B., Sánchez-Lugo, A., Santee, M.L., Sawaengphokhai, P., Sayouri, A., Scambos, T.A., Scanlon, T., Scardilli, A.S., Schenzinger, V., Schladow, S.G., Schmid, C., Schmid, M., Schoeneich, P., Schreck, III, Selkirk, H.B., Sensoy, S., Shi, L., Shiklomanov, A.I., Shiklomanov, N.I., Shimpo, A., Shuman, C.A., Siegel, D.A., Sima, F., Simmons, A.J., Smeets, C.J.P.P., Smith, A., Smith, S.L., Soden, B., Sofieva, V., Sparks, T.H., Spence, J., Spencer, R.G.M., Spillane, S., Srivastava, A.K., Stabeno, P.J., Stackhouse, Jr., Stammerjohn, S., Stanitski, D.M., Steinbrecht, W., Stella, J.L., Stengel, M., Stephenson, T.S., Strahan, S.E., Streeter, C., Streletskiy, D.A., Sun-Mack, S., Suslova, A., Sutton, A.J., Swart, S., Sweet, W., Takahashi, K.S., Tank, S.E., Taylor, M.A., Tedesco, M., Thackeray, S.J., Thompson, P.R., Timbal, B., Timmermans, M.-L., Tobin, S., Tømmervik, H., Tourpali, K., Trachte, K., Tretiakov, M., Trewin, B.C., Triñanes, J.A., Trotman, A.R., Tschudi, M., Tye, M.R., van As, D., van de Wal, R.S.W., van der A, R.J., van der Schalie, R., van der Schrier, G., van der Werf, G.R., van Heerwaarden, C., Van Meerbeeck, C.J., Verburg, P., Vieira, G., Vincent, L.A., Vömel, H., Vose, R.S., Walker, D.A., Walsh, J.E., Wang, B., Wang, H., Wang, L., Wang, M., Wang, R., Wang, S.-H., Wanninkhof, R., Watanabe, S., Weber, M., Webster, M., Weerts, A., Weller, R.A., Westberry, T.K., Weyhenmeyer, G.A., Widlansky, M.J., Wijffels, S.E., Wilber, A.C., Wild, J.D., Willett, K.M., Wong, T., Wood, E.F., Woolway, R.I., Xue, Y., Yin, X., Yu, L., Zambrano, E., Zeyaeyan, S., Zhang, H.-M., Zhang, P., Zhao, G., Zhao, L., Zhou, X., Zhu, Z., Ziemke, J.R., Ziese, M., Andersen, A., Griffin, J., Hammer, G., Love-Brotak, S.E., Misch, D.J., Riddle, D.B., Veasey, S.W., Ades, M., Adler, R., Aldeco, L.S., Alejandra, G., Alfaro, E.J., Aliaga-Nestares, V., Allan, R.P., Allan, R., Alves, L.M., Amador, J.A., Andersen, J.K., Anderson, J., Arndt, D.S., Arosio, C., Arrigo, K., Azorin-Molina, C., Bardin, M.Y., Barichivich, J., Barreira, S., Baxter, S., Beck, H.E., Becker, A., Bell, G.D., Bellouin, N., Belmont, M., Benedetti, A., Benedict, I., Bernhard, G.H., Berrisford, P., Berry, D.I., Bettio, L., Bhatt, U.S., Biskaborn, B.K., Bissolli, P., Bjella, K.L., Bjerke, J.K., Blake, E.S., Blenkinsop, S., Blunden, J., Bock, O., Bosilovich, M.G., Boucher, O., Box, J.E., Boyer, T., Braathen, G., Bringas, F.G., Bromwich, D.H., Brown, A., Brown, R., Brown, T.J., Buehler, S.A., Cáceres, L., Calderón, B., Camargo, S.J., Campbell, J.D., Campos Diaz, D.A., Cappelen, J., Carrea, L., Carrier, S.B., Carter, B.R., Castro, A.Y., Cetinic, I., Chambers, D.P., Chen, L., Cheng, L., Cheng, V.Y.S., Christiansen, H.H., Christy, J.R., Chung, E.-S., Claus, F., Clem, K.R., Coelho, C.A.S., Coldewey-Egbers, M., Colwell, S., Cooper, O.R., Cosca, C., Covey, C., Coy, L., Dávila, C.P., Davis, S.M., de Eyto, E., de Jeu, R.A.M., De Laat, J., Decharme, B., Degasperi, C.L., Degenstein, D., Demircan, M., Derksen, C., Dhurmea, K.R., Di Girolamo, L., Diamond, H.J., Diaz, E., Diniz, F.A., Dlugokencky, E.J., Dohan, K., Dokulil, M.T., Dolman, A.J., Domingues, C.M., Domingues, R., Donat, M.G., Dorigo, W.A., Drozdov, D.S., Druckenmiller, M.L., Dunn, R.J.H., Durre, I., Dutton, G.S., Elkharrim, M., Elkins, J.W., Epstein, H.E., Espinoza, J.C., Famiglietti, J.S., Farrell, S.L., Fausto, R.S., Feely, R.A., Feng, Z., Fenimore, C., Fettweis, X., Fioletov, V.E., Flemming, J., Fogt, R.L., Forbes, B.C., Foster, M.J., Francis, S.D., Franz, B.A., Frey, R.A., Frith, S.M., Froidevaux, L., Ganter, C., Garforth, J., Gerland, S., Gilson, J., Gleason, K., Gobron, N., Goetz, S., Goldenberg, S.B., Goni, G., Gray, A., Groo, J.-U., Gruber, A., Gu, G., Guard, C.C.P., Gupta, S.K., Gutiérrez, D., Haas, Christian, Hagos, S., Hahn, S., Haimberger, L., Hall, B.D., Halpert, M.S., Hamlington, B.D., Hanna, E., Hanssen-Bauer, I., Harris, I., Hazeleger, W., He, Q., Heidinger, A.K., Heim, Jr., Hemming, D.L., Hendricks, Stefan, Hernández, R., Hersbach, H.E., Hidalgo, H.G., Ho, S.-P.B., Holmes, R.M., Hu, C., Huang, B., Hubbard, K., Hubert, D., Hurst, D.F., Ialongo, I., Ijampy, J.A., Inness, A., Isaac, V., Isaksen, K., Ishii, M., Jeffries, M.O., Jevrejeva, S., Jia, G., Jiménez, C., Jin, X., John, V., Johnsen, B., Johnson, G.C., Johnson, K.S., Johnson, B., Jones, P.D., Jumaux, G., Kabidi, K., Kaiser, J.W., Karaköylü, E.M., Karlsen, S.-R., Karnauskas, M., Kato, S., Kazemi, A.F., Kelble, C., Keller, L.M., Kennedy, J., Kholodov, A.L., Khoshkam, M., Kidd, R., Killick, R., Kim, H., Kim, S.-J., King, A.D., King, B.A., Kipling, Z., Klotzbach, P.J., Knaff, J.A., Korhonen, J., Korshunova, N.N., Kramarova, N.A., Kratz, D.P., Kruger, A., Kruk, M.C., Krumpen, Thomas, Labbé, L., Ladd, C., Lakatos, M., Lakkala, K., Lander, M.A., Landschützer, P., Landsea, C.W., Lareau, N.P., Lavado-Casimiro, W., Lazzara, M.A., Lee, T.C., Leuliette, E., L�heureux, M., Li, B., Li, T., Lieser, J.L., Lim, J.-Y., Lin, I.-I., Liu, H., Locarnini, R., Loeb, N.G., Long, C.S., López, L.A., Lorrey, A.M., Loyola, D., Lumpkin, R., Luo, J.-J., Luojus, K., Lyman, J.M., Malkova, G.V., Manney, G.L., Marchenko, S.S., Marengo, J.A., Marin, D., Marquardt Collow, A.B., Marra, J.J., Marszelewski, W., Martens, B., Martínez-Güingla, R., Massom, R.A., May, L., Mayer, M., Mazloff, M., McBride, C., McCabe, M., McClelland, J.W., McEvoy, D.J., McGree, S., McVicar, T.R., Mears, C.A., Meier, W., Meijers, A., Mekonnen, A., Mengistu Tsidu, G., Menzel, W.P., Merchant, C.J., Meredith, M.P., Merrifield, M.A., Miller, B., Miralles, D.G., Misevicius, N., Mitchum, G.T., Mochizuki, Y., Monselesan, D., Montzka, S.A., Mora, N., Morice, C., Mosquera-Vásquez, K., Mostafa, A.E., Mote, T., Mudryk, L., Mühle, J., Mullan, A.B., Müller, R., Myneni, R., Nash, E.R., Nauslar, N.J., Nerem, R.S., Newman, P.A., Nicolas, J.P., Nieto, J.J., Noetzli, J., Osborn, T.J., Osborne, E., Overland, J., Oyunjargal, L., Park, T., Pasch, R.J., Pascual Ramírez, R., Pastor Saavedra, M.A., Paterson, A.M., Pearce, P.R., Pelto, M.S., Perovich, D., Petropavlovskikh, I., Pezza, A.B., Phillips, C., Phillips, D., Phoenix, G., Pinty, B., Pitts, M., Po-Chedley, S., Polashenski, C., Preimesberger, W., Purkey, S.G., Quispe, N., Rajeevan, M., Rakotoarimalala, C.L., Ramos, A.M., Ramos, I., Randel, W., Raynolds, M.K., Reagan, J., Reid, P., Reimer, C., Rémy, S., Revadekar, J.V., Richardson, A.D., Richter-Menge, J., Ricker, Robert, Ripaldi, A., Robinson, D.A., Rodell, M., Rodriguez Camino, E., Romanovsky, V.E., Ronchail, J., Rosenlof, K.H., Rösner, B., Roth, C., Rozanov, A., Rusak, J.A., Rustemeier, E., Rutishäuser, T., Sallée, J.-B., Sánchez-Lugo, A., Santee, M.L., Sawaengphokhai, P., Sayouri, A., Scambos, T.A., Scanlon, T., Scardilli, A.S., Schenzinger, V., Schladow, S.G., Schmid, C., Schmid, M., Schoeneich, P., Schreck, III, Selkirk, H.B., Sensoy, S., Shi, L., Shiklomanov, A.I., Shiklomanov, N.I., Shimpo, A., Shuman, C.A., Siegel, D.A., Sima, F., Simmons, A.J., Smeets, C.J.P.P., Smith, A., Smith, S.L., Soden, B., Sofieva, V., Sparks, T.H., Spence, J., Spencer, R.G.M., Spillane, S., Srivastava, A.K., Stabeno, P.J., Stackhouse, Jr., Stammerjohn, S., Stanitski, D.M., Steinbrecht, W., Stella, J.L., Stengel, M., Stephenson, T.S., Strahan, S.E., Streeter, C., Streletskiy, D.A., Sun-Mack, S., Suslova, A., Sutton, A.J., Swart, S., Sweet, W., Takahashi, K.S., Tank, S.E., Taylor, M.A., Tedesco, M., Thackeray, S.J., Thompson, P.R., Timbal, B., Timmermans, M.-L., Tobin, S., Tømmervik, H., Tourpali, K., Trachte, K., Tretiakov, M., Trewin, B.C., Triñanes, J.A., Trotman, A.R., Tschudi, M., Tye, M.R., van As, D., van de Wal, R.S.W., van der A, R.J., van der Schalie, R., van der Schrier, G., van der Werf, G.R., van Heerwaarden, C., Van Meerbeeck, C.J., Verburg, P., Vieira, G., Vincent, L.A., Vömel, H., Vose, R.S., Walker, D.A., Walsh, J.E., Wang, B., Wang, H., Wang, L., Wang, M., Wang, R., Wang, S.-H., Wanninkhof, R., Watanabe, S., Weber, M., Webster, M., Weerts, A., Weller, R.A., Westberry, T.K., Weyhenmeyer, G.A., Widlansky, M.J., Wijffels, S.E., Wilber, A.C., Wild, J.D., Willett, K.M., Wong, T., Wood, E.F., Woolway, R.I., Xue, Y., Yin, X., Yu, L., Zambrano, E., Zeyaeyan, S., Zhang, H.-M., Zhang, P., Zhao, G., Zhao, L., Zhou, X., Zhu, Z., Ziemke, J.R., Ziese, M., Andersen, A., Griffin, J., Hammer, G., Love-Brotak, S.E., Misch, D.J., Riddle, D.B., and Veasey, S.W.

Published
2019

6. State of Climate in 2012

Author

Blunden, J., Arndt, D.S., Achberger, C., Ackerman, S.A., Albanil, A., Alexander, P., Alfaro, E.J., Allan, R., Alves, L.M., Amador, J.A., Ambenje, P., Andrianjafinirina, S., Antonov, J., Aravequia, J.A., Arendt, A., Arevalo, J., Ashik, I., Altheru, Z., Banzon, V., Baringer, M.O., Barreira, S., Barriopedro, D.E., Beard, G., Becker, G., Behrenfeld, M.J., Bell, G.D., Benedetti, A., Bernhard, G., Berrisford, P., Berry, D.I., Bhatt, U., Bidegain, M., Bindoff, N., Bissolli, P., Blake, E.S., Booneeady, R., Bosilovich, M., Box, J.E., Boyer, T., Braathen, G.O., Bromwich, D.H., Brown, R., Brown, L., Bruhwiler, L., Bulygina, O.N., Burgess, D., Burrows, J., Calderon, B., Camargo, S.J., Campbell, J., Cao, Y., Cappelen, J., Carrasco, G., Chambers, D.P., Chang'a, L., Chappell, P., Chehade, W., Cheliah, M., Christiansen, H.H., Christy, J.R., Ciais, P., Coelho, C.A.S., Cogley, J.G., Colwell, S., Cross, J.N., Crouch, J., Cunningham, S.A., Dacic, M., de Jeu, R.A.M., Dekaa, F.S., Demircan, M., Derksen, C., Diamond, H.J., Dlugokencky, E.J., Dohan, K., Dolman, A.J., Spatial analysis & Decision Support, Earth and Climate, and Amsterdam Global Change Institute

Subjects
SDG 13 - Climate Action, SDG 14 - Life Below Water
Abstract

For the first time in several years, the El Nino-Southern Oscillation did not dominate regional climate conditions around the globe. A weak La Niña dissipated to ENSO-neutral conditions by spring, and while El Nino appeared to be emerging during summer, this phase never fully developed as sea surface temperatures in the eastern equatorial Pacific uncharacteristically returned to neutral conditions. Nevertheless, other large-scale climate patterns and extreme weather events impacted various regions during the year. A negative phase of the Arctic Oscillation from mid-January to early February contributed to frigid conditions in parts of northern Africa, eastern Europe, and western Asia. A lack of rain during the 2012 wet season led to the worst drought in at least the past three decades for northeastern Brazil. Central North America also experienced one of its most severe droughts on record. The Caribbean observed a very wet dry season and it was the Sahel's wettest rainy season in 50 years. Overall, the 2012 average temperature across global land and ocean surfaces ranked among the 10 warmest years on record. The global land surface temperature alone was also among the 10 warmest on record. In the upper atmosphere, the average stratospheric temperature was record or near-record cold, depending on the dataset. After a 30-year warming trend from 1970 to 1999 for global sea surface temperatures, the period 2000-12 had little further trend. This may be linked to the prevalence of La Niña-like conditions during the 21st century. Heat content in the upper 700 m of the ocean remained near record high levels in 2012. Net increases from 2011 to 2012 were observed at 700-m to 2000-m depth and even in the abyssal ocean below. Following sharp decreases in global sea level in the first half of 2011 that were linked to the effects of La Niña, sea levels rebounded to reach records highs in 2012. The increased hydrological cycle seen in recent years continued, with more evaporation in drier locations and more precipitation in rainy areas. In a pattern that has held since 2004, salty areas of the ocean surfaces and subsurfaces were anomalously salty on average, while fresher areas were anomalously fresh. Global tropical cyclone activity during 2012 was near average, with a total of 84 storms compared with the 1981-2010 average of 89. Similar to 2010 and 2011, the North Atlantic was the only hurricane basin that experienced above-normal activity. In this basin, Sandy brought devastation to Cuba and parts of the eastern North American seaboard. All other basins experienced either near- or below-normal tropical cyclone activity. Only three tropical cyclones reached Category 5 intensity-all in the Western North Pacific basin. Of these, Super Typhoon Bopha became the only storm in the historical record to produce winds greater than 130 kt south of 7°N. It was also the costliest storm to affect the Philippines and killed more than 1000 residents. Minimum Arctic sea ice extent in September and Northern Hemisphere snow cover extent in June both reached new record lows. June snow cover extent is now declining at a faster rate (-17.6% per decade) than September sea ice extent (-13.0% per decade). Permafrost temperatures reached record high values in northernmost Alaska. A new melt extent record occurred on 11-12 July on the Greenland ice sheet; 97% of the ice sheet showed some form of melt, four times greater than the average melt for this time of year. The climate in Antarctica was relatively stable overall. The largest maximum sea ice extent since records begain in 1978 was observed in September 2012. In the stratosphere, warm air led to the second smallest ozone hole in the past two decades. Even so, the springtime ozone layer above Antarctica likely will not return to its early 1980s state until about 2060. Following a slight decline associated with the global financial crisis, global CO

Published
2014
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7. A twentieth century perspective on summer Antarctic pressure change and variability and contributions from tropical SSTs and ozone depletion\ud

Author

Fogt, R.L., Goergens, C.A., Jones, J.M., Schneider, D.P., Nicolas, J.P., Bromwich, D.H., and Dusellier, H.E.

Abstract

During the late 20th 33 Century, the Antarctic atmospheric circulation has changed\ud and significantly influenced the overall Antarctic climate, through processes including a\ud poleward shift of the circumpolar westerlies. However, little is known about the full\ud spatial pattern of atmospheric pressure over the Antarctic continent prior to 1979. Here\ud we investigate surface pressure changes across the entire Antarctic continent back to\ud 1905 by developing a new summer pressure reconstruction poleward of 60°S. We find\ud that only across East Antarctica are the recent pressures significantly lower than pressures\ud in the early 20th 40 century; we also discern periods of significant positive pressure trends in\ud the early 20th 41 century across the coastal South Atlantic sector of Antarctica. Climate\ud model simulations reveal that both tropical sea surface temperature variability and other\ud radiative forcing mechanisms, in addition to ozone depletion, have played an important\ud role in forcing the recent observed negative trends.

Published
2016

8. State of the climate in 2015

Author

Aaron-Morrison, A.P., Ackerman, S.A., Adams, N.G., Adler, R.F., Albanil, A., Alfaro, E.J., Allan, R., Alves, L.M., Amador, J.A., Andreassen, L.M., Arendt, A., Arévalo, J., Arndt, D.S., Arzhanova, N.M., Aschan, M.M., Azorin-Molina, C., Banzon, V., Bardin, M.U., Barichivich, J., Baringer, M.O., Barreira, S., Baxter, S., Bazo, J., Becker, A., Bedka, K.M., Behrenfeld, M.J., Bell, G.D., Belmont, M., Benedetti, A., Bernhard, G., Berrisford, P., Berry, D.I., Bettolli, M.L., Bhatt, U.S., Bidegain, M., Bill, B.D., Billheimer, S., Bissolli, P., Blake, E.S., Blunden, J., Bosilovich, M.G., Boucher, O., Boudet, D., Box, J.E., Boyer, T., Braathen, G.O., Bromwich, D.H., Brown, R., Bulygina, O.N., Burgess, D., Calderón, B., Camargo, S.J., Campbell, J.D., Cappelen, J., Carrasco, G., Carter, B.R., Chambers, D.P., Chandler, E., Christiansen, H.H., Christy, J.R., Chung, D., Chung, E.-S., Cinque, K., Clem, K.R., Coelho, C.A., Cogley, J.G., Coldewey-Egbers, M., Colwell, S., Cooper, O.R., Copland, L., Cosca, C.E., Cross, J.N., Crotwell, M.J., Crouch, J., Davis, S.M., De Eyto, E., De Jeu, R.A.M., De Laat, J., Degasperi, C.L., Degenstein, D., Demircan, M., Derksen, C., Destin, D., Di Girolamo, L., Di Giuseppe, F., Diamond, H.J., Dlugokencky, E.J., Dohan, K., Dokulil, M.T., Dolgov, A.V., Dolman, A.J., Domingues, C.M., Donat, M.G., Dong, S., Dorigo, W.A., Dortch, Q., Doucette, G., Drozdov, D.S., Ducklow, H., Dunn, R.J.H., Durán-Quesada, A.M., Dutton, G.S., Ebrahim, A., Elkharrim, M., Elkins, J.W., Espinoza, J.C., Etienne-Leblanc, S., Evans, T.E., Famiglietti, J.S., Farrell, S., Fateh, S., Fausto, R.S., Fedaeff, N., Feely, R.A., Feng, Z., Fenimore, C., Fettweis, X., Fioletov, V.E., Flemming, J., Fogarty, C.T., Fogt, R.L., Folland, C., Fonseca, C., Fossheim, M., Foster, M.J., Fountain, A., Francis, S.D., Franz, B.A., Frey, R.A., Frith, S.M., Froidevaux, L., Ganter, C., Garzoli, S., Gerland, S., Gobron, N., Goldenberg, S.B., Gomez, R.S., Goni, G., Goto, A., Grooß, J.-U., Gruber, A., Guard, C.C., Gugliemin, M., Gupta, Somil, Gutiérrez, J.M., Hagos, S., Hahn, S., Haimberger, L., Hakkarainen, J., Hall, B.D., Halpert, M.S., Hamlington, B.D., Hanna, E., Hansen, K., Hanssen-Bauer, I., Harris, I., Heidinger, A.K., Heikkilä, A., Heil, A., Heim, R.R., Hendricks, S., Hernández, M., Hidalgo, H.G., Hilburn, K., Ho, S.-P.B., Holmes, R.M., Hu, Z.-Z., Huang, B., Huelsing, H.K., Huffman, G.J., Hughes, C., Hurst, D.F., Ialongo, I., Ijampy, J.A., Ingvaldsen, R.B., Inness, A., Isaksen, K., Ishii, M., Jevrejeva, S., Jiménez, C., Jin, X., Johannesen, E., John, V., Johnsen, B., Johnson, B., Johnson, G.C., Jones, P.D., Joseph, A.C., Jumaux, G., Kabidi, K., Kaiser, J.W., Kato, S., Kazemi, A., Keller, L.M., Kendon, M., Kennedy, J., Kerr, K., Kholodov, A.L., Khoshkam, M., Killick, R., Kim, H., Kim, S.-J., Kimberlain, T.B., Klotzbach, P.J., Knaff, J.A., Kobayashi, S., Kohler, J., Korhonen, J., Korshunova, N.N., Kovacs, K.M., Kramarova, N., Kratz, D.P., Kruger, A., Kruk, M.C., Kudela, R., Kumar, A., Lakatos, M., Lakkala, K., Lander, M.A., Landsea, C.W., Lankhorst, M., Lantz, K., Lazzara, M.A., Lemons, P., Leuliette, E., L’Heureux, M., Lieser, J.L., Lin, I.-I., Liu, H., Liu, Y., Locarnini, R., Loeb, N.G., Lo Monaco, C., Long, C.S., López Álvarez, L.A., Lorrey, A.M., Loyola, D., Lumpkin, R., Luo, J.-J., Luojus, K., Lydersen, C., Lyman, J.M., Maberly, S.C., Maddux, B.C., Malheiros Ramos, A., Malkova, G.V., Manney, G., Marcellin, V., Marchenko, S.S., Marengo, J.A., Marra, J.J., Marszelewski, W., Martens, B., Martínez-Güingla, R., Massom, R.A., Mata, M.M., Mathis, J.T., May, L., Mayer, M., Mazloff, M., McBride, C., McCabe, M.F., McCarthy, M., McClelland, J.W., McGree, S., McVicar, T.R., Mears, C.A., Meier, W., Meinen, C.S., Mekonnen, A., Menéndez, M., Mengistu Tsidu, G., Menzel, W.P., Merchant, C.J., Meredith, M.P., Merrifield, M.A., Metzl, N., Minnis, P., Miralles, D.G., Mistelbauer, T., Mitchum, G.T., Monselesan, D., Monteiro, P., Montzka, S.A., Morice, C., Mote, T., Mudryk, L., Mühle, J., Mullan, A.B., Nash, E.R., Naveira-Garabato, A.C., Nerem, R.S., Newman, P.A., Nieto, J.J., Noetzli, J., O’Neel, S., Osborn, T.J., Overland, J., Oyunjargal, L., Parinussa, R.M., Park, E.-H., Parker, D., Parrington, M., Parsons, A.R., Pasch, R.J., Pascual-Ramírez, R., Paterson, A.M., Paulik, C., Pearce, P.R., Pelto, M.S., Peng, L., Perkins-Kirkpatrick, S.E., Perovich, D., Petropavlovskikh, I., Pezza, A.B., Phillips, D., Pinty, B., Pitts, M.C., Pons, M.R., Porter, A.O., Primicerio, R., Proshutinsky, A., Quegan, S., Quintana, J., Rahimzadeh, F., Rajeevan, M., Randriamarolaza, L., Razuvaev, V.N., Reagan, J., Reid, P., Reimer, C., Rémy, S., Renwick, J.A., Revadekar, J.V., Richter-Menge, J., Riffler, M., Rimmer, A., Rintoul, S., Robinson, D.A., Rodell, M., Rodríguez Solís, J.L., Romanovsky, V.E., Ronchail, J., Rosenlof, K.H., Roth, C., Rusak, J.A., Sabine, C.L., Sallée, J.-B., Sánchez-Lugo, A., Santee, M.L., Sawaengphokhai, P., Sayouri, A., Scambos, T.A., Schemm, J., Schladow, S.G., Schmid, C., Schmid, M., Schmidtko, S., Schreck, C.J., Selkirk, H.B., Send, U., Sensoy, S., Setzer, A., Sharp, M., Shaw, A., Shi, L., Shiklomanov, A.I., Shiklomanov, N.I., Siegel, D.A., Signorini, S.R., Sima, F., Simmons, A.J., Smeets, C.J.P.P., Smith, S.L., Spence, J.M., Srivastava, A.K., Stackhouse, P.W., Stammerjohn, S., Steinbrecht, W., Stella, J.L., Stengel, M., Stennett-Brown, R., Stephenson, T.S., Strahan, S., Streletskiy, D.A., Sun-Mack, S., Swart, S., Sweet, W., Talley, L.D., Tamar, G., Tank, S.E., Taylor, M.A., Tedesco, M., Teubner, K., Thoman, R.L., Thompson, P., Thomson, L., Timmermans, M.-L., Tirnanes, J.A., Tobin, S., Trachte, K., Trainer, V.L., Tretiakov, M., Trewin, B.C., Trotman, A.R., Tschudi, M., Van As, D., Van De Wal, R.S.W., van der A., R.J., Van Der Schalie, R., Van Der Schrier, G., Van Der Werf, G.R., Van Meerbeeck, C.J., Velicogna, I., Verburg, P., Vigneswaran, B., Vincent, L.A., Volkov, D., Vose, R.S., Wagner, W., Wåhlin, A., Wahr, J., Walsh, J., Wang, C., Wang, J., Wang, L., Wang, M., Wang, S.-H., Wanninkhof, R., Watanabe, S., Weber, M., Weller, R.A., Weyhenmeyer, G.A., Whitewood, R., Wijffels, S.E., Wilber, A.C., Wild, J.D., Willett, K.M., Williams, M.J.M., Willie, S., Wolken, G., Wong, T., Wood, E.F., Woolway, R.I., Wouters, B., Xue, Y., Yamada, R., Yim, S.-Y., Yin, X., Young, S.H., Yu, L., Zahid, H., Zambrano, E., Zhang, P., Zhao, G., Zhou, L., Ziemke, J.R., Love-Brotak, S.E., Gilbert, K., Maycock, T., Osborne, S., Sprain, M., Veasey, S.W., Ambrose, B.J., Griffin, J., Misch, D.J., Riddle, D.B., Young, T., Marine and Atmospheric Research, Sub Inorganic Chemistry and Catalysis, Sub Dynamics Meteorology, Sub Soft Condensed Matter, Sub Molecular Microbiology, Sub Physics of devices begr 1/1/17, LS Logica en grondslagen v.d. wiskunde, Sub SIM overig, Zonder bezoldiging NED, Sub General Pharmaceutics, Sub Algemeen Artificial Intelligence, Dynamics of Innovation Systems, Leerstoel Tubergen, Sub Chemical pharmacology, Hafd Faculteitsbureau GW, Sub IER overig, Sub Gen. Pharmacoepi and Clinical Pharm, LS Pharma, Dep IRAS, Environmental Sciences, Environmental Governance, Bureau AW, Sub Ecology and Biodiversity, Marine and Atmospheric Research, Sub Inorganic Chemistry and Catalysis, Sub Dynamics Meteorology, Sub Soft Condensed Matter, Sub Molecular Microbiology, Sub Physics of devices begr 1/1/17, LS Logica en grondslagen v.d. wiskunde, Sub SIM overig, Zonder bezoldiging NED, Sub General Pharmaceutics, Sub Algemeen Artificial Intelligence, Dynamics of Innovation Systems, Leerstoel Tubergen, Sub Chemical pharmacology, Hafd Faculteitsbureau GW, Sub IER overig, Sub Gen. Pharmacoepi and Clinical Pharm, LS Pharma, Dep IRAS, Environmental Sciences, Environmental Governance, Bureau AW, Sub Ecology and Biodiversity, Earth and Climate, Vrije Universiteit Amsterdam, Faculty of Earth and Life Sciences, and Climate Change and Landscape Dynamics

Subjects
Surface (mathematics), Atmospheric Science, 010504 meteorology & atmospheric sciences, 0208 environmental biotechnology, Mineralogy, 02 engineering and technology, 15. Life on land, 01 natural sciences, 020801 environmental engineering, 13. Climate action, F331 Atmospheric Physics, SDG 13 - Climate Action, SDG 14 - Life Below Water, Geology, 0105 earth and related environmental sciences
Abstract

SxviAUGUST 2016|ABSTRACT—J. BLUNDEN AND D. S. ARNDTIn 2015, the dominant greenhouse gases released into Earth’s atmosphere—carbon dioxide, methane, and nitrous oxide—all continued to reach new high levels. At Mauna Loa, Hawaii, the annual CO2 concentration increased by a record 3.1 ppm, exceeding 400 ppm for the first time on record. The 2015 global CO2 average neared this threshold, at 399.4 ppm. Additionally, one of the strongest El Niño events since at least 1950 developed in spring 2015 and continued to evolve through the year. The phenomenon was far reaching, impacting many regions across the globe and affecting most aspects of the climate system.Owing to the combination of El Niño and a long-term up-ward trend, Earth observed record warmth for the second con-secutive year, with the 2015 annual global surface temperature surpassing the previous record by more than 0.1°C and exceed-ing the average for the mid- to late 19th century—commonly considered representative of preindustrial conditions—by more than 1°C for the first time. Above Earth’s surface, lower troposphere temperatures were near-record high.Across land surfaces, record to near-record warmth was reported across every inhabited continent. Twelve countries, including Russia and China, reported record high annual tem-peratures. In June, one of the most severe heat waves since 1980 affected Karachi, Pakistan, claiming over 1000 lives. On 27 October, Vredendal, South Africa, reached 48.4°C, a new global high temperature record for this month. In the Arctic, the 2015 land surface temperature was 1.2°C above the 1981–2010 average, tying 2007 and 2011 for the high-est annual temperature and representing a 2.8°C increase since the record began in 1900. Increasing temperatures have led to decreasing Arctic sea ice extent and thickness. On 25 February 2015, the lowest maximum sea ice extent in the 37-year satel-lite record was observed, 7% below the 1981–2010 average. Mean sea surface temperatures across the Arctic Ocean dur-ing August in ice-free regions, representative of Arctic Ocean summer anomalies, ranged from ~0°C to 8°C above average. As a consequence of sea ice retreat and warming oceans, vast walrus herds in the Pacific Arctic are hauling out on land rather than on sea ice, raising concern about the energetics of females and young animals. Increasing temperatures in the Barents Sea are linked to a community-wide shift in fish populations: boreal communities are now farther north, and long-standing Arctic species have been almost pushed out of the area.Above average sea surface temperatures are not confined to the Arctic. Sea surface temperature for 2015 was record high at the global scale; however, the North Atlantic southeast of Greenland remained colder than average and colder than 2014. Global annual ocean heat content and mean sea level also reached new record highs. The Greenland Ice Sheet, with the capacity to contribute ~7 m to sea level rise, experienced melting over more than 50% of its surface for the first time since the record melt of 2012.Other aspects of the cryosphere were remarkable. Alpine glacier retreat continued, and preliminary data indicate that 2015 is the 36th consecutive year of negative annual mass balance. Across the Northern Hemisphere, late-spring snow cover extent continued its trend of decline, with June the sec-ond lowest in the 49-year satellite record. Below the surface, record high temperatures at 20-m depth were measured at all permafrost observatories on the North Slope of Alaska, increasing by up to 0.66°C decade–1 since 2000. In the Antarctic, surface pressure and temperatures were lower than the 1981–2010 average for most of the year, consis-tent with the primarily positive southern annular mode, which saw a record high index value of +4.92 in February. Antarctic sea ice extent and area had large intra-annual variability, with a shift from record high levels in May to record low levels in August. Springtime ozone depletion resulted in one of the largest and most persistent Antarctic ozone holes observed since the 1990s.Closer to the equator, 101 named tropical storms were observed in 2015, well above the 1981–2010 average of 82. The eastern/central Pacific had 26 named storms, the most since 1992. The western north Pacific and north and south Indian Ocean basins also saw high activity. Globally, eight tropical cyclones reached the Saffir–Simpson Category 5 intensity level.Overlaying a general increase in the hydrologic cycle, the strong El Niño enhanced precipitation variability around the world. An above-normal rainy season led to major floods in Paraguay, Bolivia, and southern Brazil. In May, the United States recorded its all-time wettest month in its 121-year national record. Denmark and Norway reported their second and third wettest year on record, respectively, but globally soil moisture was below average, terrestrial groundwater storage was the lowest in the 14-year record, and areas in “severe” drought rose from 8% in 2014 to 14% in 2015. Drought conditions prevailed across many Caribbean island nations, Colombia, Venezuela, and northeast Brazil for most of the year. Several South Pacific countries also experienced drought. Lack of rainfall across Ethiopia led to its worst drought in decades and affected millions of people, while prolonged drought in South Africa severely affected agricultural production. Indian summer monsoon rainfall was just 86% of average. Extremely dry conditions in Indonesia resulted in intense and widespread fires during August–November that produced abundant car-bonaceous aerosols, carbon monoxide, and ozone. Overall, emissions from tropical Asian biomass burning in 2015 were almost three times the 2001–14 average.

Published
2016
Full Text
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9. State of the climate in 2015

Author

Marine and Atmospheric Research, Sub Inorganic Chemistry and Catalysis, Sub Dynamics Meteorology, Sub Soft Condensed Matter, Sub Molecular Microbiology, Sub Physics of devices begr 1/1/17, LS Logica en grondslagen v.d. wiskunde, Sub SIM overig, Zonder bezoldiging NED, Sub General Pharmaceutics, Sub Algemeen Artificial Intelligence, Dynamics of Innovation Systems, Leerstoel Tubergen, Sub Chemical pharmacology, Hafd Faculteitsbureau GW, Sub ISEP overig, Sub Gen. Pharmacoepi and Clinical Pharm, LS Pharma, Dep IRAS, Environmental Sciences, Environmental Governance, Bureau AW, Sub Ecology and Biodiversity, Aaron-Morrison, A.P., Ackerman, S.A., Adams, N.G., Adler, R.F., Albanil, A., Alfaro, E.J., Allan, R., Alves, L.M., Amador, J.A., Andreassen, L.M., Arendt, A., Arévalo, J., Arndt, D.S., Arzhanova, N.M., Aschan, M.M., Azorin-Molina, C., Banzon, V., Bardin, M.U., Barichivich, J., Baringer, M.O., Barreira, S., Baxter, S., Bazo, J., Becker, A., Bedka, K.M., Behrenfeld, M.J., Bell, G.D., Belmont, M., Benedetti, A., Bernhard, G., Berrisford, P., Berry, D.I., Bettolli, M.L., Bhatt, U.S., Bidegain, M., Bill, B.D., Billheimer, S., Bissolli, P., Blake, E.S., Blunden, J., Bosilovich, M.G., Boucher, O., Boudet, D., Box, J.E., Boyer, T., Braathen, G.O., Bromwich, D.H., Brown, R., Bulygina, O.N., Burgess, D., Calderón, B., Camargo, S.J., Campbell, J.D., Cappelen, J., Carrasco, G., Carter, B.R., Chambers, D.P., Chandler, E., Christiansen, H.H., Christy, J.R., Chung, D., Chung, E.-S., Cinque, K., Clem, K.R., Coelho, C.A., Cogley, J.G., Coldewey-Egbers, M., Colwell, S., Cooper, O.R., Copland, L., Cosca, C.E., Cross, J.N., Crotwell, M.J., Crouch, J., Davis, S.M., De Eyto, E., De Jeu, R.A.M., De Laat, J., Degasperi, C.L., Degenstein, D., Demircan, M., Derksen, C., Destin, D., Di Girolamo, L., Di Giuseppe, F., Diamond, H.J., Dlugokencky, E.J., Dohan, K., Dokulil, M.T., Dolgov, A.V., Dolman, A.J., Domingues, C.M., Donat, M.G., Dong, S., Dorigo, W.A., Dortch, Q., Doucette, G., Drozdov, D.S., Ducklow, H., Dunn, R.J.H., Durán-Quesada, A.M., Dutton, G.S., Ebrahim, A., Elkharrim, M., Elkins, J.W., Espinoza, J.C., Etienne-Leblanc, S., Evans, T.E., Famiglietti, J.S., Farrell, S., Fateh, S., Fausto, R.S., Fedaeff, N., Feely, R.A., Feng, Z., Fenimore, C., Fettweis, X., Fioletov, V.E., Flemming, J., Fogarty, C.T., Fogt, R.L., Folland, C., Fonseca, C., Fossheim, M., Foster, M.J., Fountain, A., Francis, S.D., Franz, B.A., Frey, R.A., Frith, S.M., Froidevaux, L., Ganter, C., Garzoli, S., Gerland, S., Gobron, N., Goldenberg, S.B., Gomez, R.S., Goni, G., Goto, A., Grooß, J.-U., Gruber, A., Guard, C.C., Gugliemin, M., Gupta, Somil, Gutiérrez, J.M., Hagos, S., Hahn, S., Haimberger, L., Hakkarainen, J., Hall, B.D., Halpert, M.S., Hamlington, B.D., Hanna, E., Hansen, K., Hanssen-Bauer, I., Harris, I., Heidinger, A.K., Heikkilä, A., Heil, A., Heim, R.R., Hendricks, S., Hernández, M., Hidalgo, H.G., Hilburn, K., Ho, S.-P.B., Holmes, R.M., Hu, Z.-Z., Huang, B., Huelsing, H.K., Huffman, G.J., Hughes, C., Hurst, D.F., Ialongo, I., Ijampy, J.A., Ingvaldsen, R.B., Inness, A., Isaksen, K., Ishii, M., Jevrejeva, S., Jiménez, C., Jin, X., Johannesen, E., John, V., Johnsen, B., Johnson, B., Johnson, G.C., Jones, P.D., Joseph, A.C., Jumaux, G., Kabidi, K., Kaiser, J.W., Kato, S., Kazemi, A., Keller, L.M., Kendon, M., Kennedy, J., Kerr, K., Kholodov, A.L., Khoshkam, M., Killick, R., Kim, H., Kim, S.-J., Kimberlain, T.B., Klotzbach, P.J., Knaff, J.A., Kobayashi, S., Kohler, J., Korhonen, J., Korshunova, N.N., Kovacs, K.M., Kramarova, N., Kratz, D.P., Kruger, A., Kruk, M.C., Kudela, R., Kumar, A., Lakatos, M., Lakkala, K., Lander, M.A., Landsea, C.W., Lankhorst, M., Lantz, K., Lazzara, M.A., Lemons, P., Leuliette, E., L’Heureux, M., Lieser, J.L., Lin, I.-I., Liu, H., Liu, Y., Locarnini, R., Loeb, N.G., Lo Monaco, C., Long, C.S., López Álvarez, L.A., Lorrey, A.M., Loyola, D., Lumpkin, R., Luo, J.-J., Luojus, K., Lydersen, C., Lyman, J.M., Maberly, S.C., Maddux, B.C., Malheiros Ramos, A., Malkova, G.V., Manney, G., Marcellin, V., Marchenko, S.S., Marengo, J.A., Marra, J.J., Marszelewski, W., Martens, B., Martínez-Güingla, R., Massom, R.A., Mata, M.M., Mathis, J.T., May, L., Mayer, M., Mazloff, M., McBride, C., McCabe, M.F., McCarthy, M., McClelland, J.W., McGree, S., McVicar, T.R., Mears, C.A., Meier, W., Meinen, C.S., Mekonnen, A., Menéndez, M., Mengistu Tsidu, G., Menzel, W.P., Merchant, C.J., Meredith, M.P., Merrifield, M.A., Metzl, N., Minnis, P., Miralles, D.G., Mistelbauer, T., Mitchum, G.T., Monselesan, D., Monteiro, P., Montzka, S.A., Morice, C., Mote, T., Mudryk, L., Mühle, J., Mullan, A.B., Nash, E.R., Naveira-Garabato, A.C., Nerem, R.S., Newman, P.A., Nieto, J.J., Noetzli, J., O’Neel, S., Osborn, T.J., Overland, J., Oyunjargal, L., Parinussa, R.M., Park, E.-H., Parker, D., Parrington, M., Parsons, A.R., Pasch, R.J., Pascual-Ramírez, R., Paterson, A.M., Paulik, C., Pearce, P.R., Pelto, M.S., Peng, L., Perkins-Kirkpatrick, S.E., Perovich, D., Petropavlovskikh, I., Pezza, A.B., Phillips, D., Pinty, B., Pitts, M.C., Pons, M.R., Porter, A.O., Primicerio, R., Proshutinsky, A., Quegan, S., Quintana, J., Rahimzadeh, F., Rajeevan, M., Randriamarolaza, L., Razuvaev, V.N., Reagan, J., Reid, P., Reimer, C., Rémy, S., Renwick, J.A., Revadekar, J.V., Richter-Menge, J., Riffler, M., Rimmer, A., Rintoul, S., Robinson, D.A., Rodell, M., Rodríguez Solís, J.L., Romanovsky, V.E., Ronchail, J., Rosenlof, K.H., Roth, C., Rusak, J.A., Sabine, C.L., Sallée, J.-B., Sánchez-Lugo, A., Santee, M.L., Sawaengphokhai, P., Sayouri, A., Scambos, T.A., Schemm, J., Schladow, S.G., Schmid, C., Schmid, M., Schmidtko, S., Schreck, C.J., Selkirk, H.B., Send, U., Sensoy, S., Setzer, A., Sharp, M., Shaw, A., Shi, L., Shiklomanov, A.I., Shiklomanov, N.I., Siegel, D.A., Signorini, S.R., Sima, F., Simmons, A.J., Smeets, C.J.P.P., Smith, S.L., Spence, J.M., Srivastava, A.K., Stackhouse, P.W., Stammerjohn, S., Steinbrecht, W., Stella, J.L., Stengel, M., Stennett-Brown, R., Stephenson, T.S., Strahan, S., Streletskiy, D.A., Sun-Mack, S., Swart, S., Sweet, W., Talley, L.D., Tamar, G., Tank, S.E., Taylor, M.A., Tedesco, M., Teubner, K., Thoman, R.L., Thompson, P., Thomson, L., Timmermans, M.-L., Tirnanes, J.A., Tobin, S., Trachte, K., Trainer, V.L., Tretiakov, M., Trewin, B.C., Trotman, A.R., Tschudi, M., Van As, D., Van De Wal, R.S.W., van der A., R.J., Van Der Schalie, R., Van Der Schrier, G., Van Der Werf, G.R., Van Meerbeeck, C.J., Velicogna, I., Verburg, P., Vigneswaran, B., Vincent, L.A., Volkov, D., Vose, R.S., Wagner, W., Wåhlin, A., Wahr, J., Walsh, J., Wang, C., Wang, J., Wang, L., Wang, M., Wang, S.-H., Wanninkhof, R., Watanabe, S., Weber, M., Weller, R.A., Weyhenmeyer, G.A., Whitewood, R., Wijffels, S.E., Wilber, A.C., Wild, J.D., Willett, K.M., Williams, M.J.M., Willie, S., Wolken, G., Wong, T., Wood, E.F., Woolway, R.I., Wouters, B., Xue, Y., Yamada, R., Yim, S.-Y., Yin, X., Young, S.H., Yu, L., Zahid, H., Zambrano, E., Zhang, P., Zhao, G., Zhou, L., Ziemke, J.R., Love-Brotak, S.E., Gilbert, K., Maycock, T., Osborne, S., Sprain, M., Veasey, S.W., Ambrose, B.J., Griffin, J., Misch, D.J., Riddle, D.B., Young, T., Marine and Atmospheric Research, Sub Inorganic Chemistry and Catalysis, Sub Dynamics Meteorology, Sub Soft Condensed Matter, Sub Molecular Microbiology, Sub Physics of devices begr 1/1/17, LS Logica en grondslagen v.d. wiskunde, Sub SIM overig, Zonder bezoldiging NED, Sub General Pharmaceutics, Sub Algemeen Artificial Intelligence, Dynamics of Innovation Systems, Leerstoel Tubergen, Sub Chemical pharmacology, Hafd Faculteitsbureau GW, Sub ISEP overig, Sub Gen. Pharmacoepi and Clinical Pharm, LS Pharma, Dep IRAS, Environmental Sciences, Environmental Governance, Bureau AW, Sub Ecology and Biodiversity, Aaron-Morrison, A.P., Ackerman, S.A., Adams, N.G., Adler, R.F., Albanil, A., Alfaro, E.J., Allan, R., Alves, L.M., Amador, J.A., Andreassen, L.M., Arendt, A., Arévalo, J., Arndt, D.S., Arzhanova, N.M., Aschan, M.M., Azorin-Molina, C., Banzon, V., Bardin, M.U., Barichivich, J., Baringer, M.O., Barreira, S., Baxter, S., Bazo, J., Becker, A., Bedka, K.M., Behrenfeld, M.J., Bell, G.D., Belmont, M., Benedetti, A., Bernhard, G., Berrisford, P., Berry, D.I., Bettolli, M.L., Bhatt, U.S., Bidegain, M., Bill, B.D., Billheimer, S., Bissolli, P., Blake, E.S., Blunden, J., Bosilovich, M.G., Boucher, O., Boudet, D., Box, J.E., Boyer, T., Braathen, G.O., Bromwich, D.H., Brown, R., Bulygina, O.N., Burgess, D., Calderón, B., Camargo, S.J., Campbell, J.D., Cappelen, J., Carrasco, G., Carter, B.R., Chambers, D.P., Chandler, E., Christiansen, H.H., Christy, J.R., Chung, D., Chung, E.-S., Cinque, K., Clem, K.R., Coelho, C.A., Cogley, J.G., Coldewey-Egbers, M., Colwell, S., Cooper, O.R., Copland, L., Cosca, C.E., Cross, J.N., Crotwell, M.J., Crouch, J., Davis, S.M., De Eyto, E., De Jeu, R.A.M., De Laat, J., Degasperi, C.L., Degenstein, D., Demircan, M., Derksen, C., Destin, D., Di Girolamo, L., Di Giuseppe, F., Diamond, H.J., Dlugokencky, E.J., Dohan, K., Dokulil, M.T., Dolgov, A.V., Dolman, A.J., Domingues, C.M., Donat, M.G., Dong, S., Dorigo, W.A., Dortch, Q., Doucette, G., Drozdov, D.S., Ducklow, H., Dunn, R.J.H., Durán-Quesada, A.M., Dutton, G.S., Ebrahim, A., Elkharrim, M., Elkins, J.W., Espinoza, J.C., Etienne-Leblanc, S., Evans, T.E., Famiglietti, J.S., Farrell, S., Fateh, S., Fausto, R.S., Fedaeff, N., Feely, R.A., Feng, Z., Fenimore, C., Fettweis, X., Fioletov, V.E., Flemming, J., Fogarty, C.T., Fogt, R.L., Folland, C., Fonseca, C., Fossheim, M., Foster, M.J., Fountain, A., Francis, S.D., Franz, B.A., Frey, R.A., Frith, S.M., Froidevaux, L., Ganter, C., Garzoli, S., Gerland, S., Gobron, N., Goldenberg, S.B., Gomez, R.S., Goni, G., Goto, A., Grooß, J.-U., Gruber, A., Guard, C.C., Gugliemin, M., Gupta, Somil, Gutiérrez, J.M., Hagos, S., Hahn, S., Haimberger, L., Hakkarainen, J., Hall, B.D., Halpert, M.S., Hamlington, B.D., Hanna, E., Hansen, K., Hanssen-Bauer, I., Harris, I., Heidinger, A.K., Heikkilä, A., Heil, A., Heim, R.R., Hendricks, S., Hernández, M., Hidalgo, H.G., Hilburn, K., Ho, S.-P.B., Holmes, R.M., Hu, Z.-Z., Huang, B., Huelsing, H.K., Huffman, G.J., Hughes, C., Hurst, D.F., Ialongo, I., Ijampy, J.A., Ingvaldsen, R.B., Inness, A., Isaksen, K., Ishii, M., Jevrejeva, S., Jiménez, C., Jin, X., Johannesen, E., John, V., Johnsen, B., Johnson, B., Johnson, G.C., Jones, P.D., Joseph, A.C., Jumaux, G., Kabidi, K., Kaiser, J.W., Kato, S., Kazemi, A., Keller, L.M., Kendon, M., Kennedy, J., Kerr, K., Kholodov, A.L., Khoshkam, M., Killick, R., Kim, H., Kim, S.-J., Kimberlain, T.B., Klotzbach, P.J., Knaff, J.A., Kobayashi, S., Kohler, J., Korhonen, J., Korshunova, N.N., Kovacs, K.M., Kramarova, N., Kratz, D.P., Kruger, A., Kruk, M.C., Kudela, R., Kumar, A., Lakatos, M., Lakkala, K., Lander, M.A., Landsea, C.W., Lankhorst, M., Lantz, K., Lazzara, M.A., Lemons, P., Leuliette, E., L’Heureux, M., Lieser, J.L., Lin, I.-I., Liu, H., Liu, Y., Locarnini, R., Loeb, N.G., Lo Monaco, C., Long, C.S., López Álvarez, L.A., Lorrey, A.M., Loyola, D., Lumpkin, R., Luo, J.-J., Luojus, K., Lydersen, C., Lyman, J.M., Maberly, S.C., Maddux, B.C., Malheiros Ramos, A., Malkova, G.V., Manney, G., Marcellin, V., Marchenko, S.S., Marengo, J.A., Marra, J.J., Marszelewski, W., Martens, B., Martínez-Güingla, R., Massom, R.A., Mata, M.M., Mathis, J.T., May, L., Mayer, M., Mazloff, M., McBride, C., McCabe, M.F., McCarthy, M., McClelland, J.W., McGree, S., McVicar, T.R., Mears, C.A., Meier, W., Meinen, C.S., Mekonnen, A., Menéndez, M., Mengistu Tsidu, G., Menzel, W.P., Merchant, C.J., Meredith, M.P., Merrifield, M.A., Metzl, N., Minnis, P., Miralles, D.G., Mistelbauer, T., Mitchum, G.T., Monselesan, D., Monteiro, P., Montzka, S.A., Morice, C., Mote, T., Mudryk, L., Mühle, J., Mullan, A.B., Nash, E.R., Naveira-Garabato, A.C., Nerem, R.S., Newman, P.A., Nieto, J.J., Noetzli, J., O’Neel, S., Osborn, T.J., Overland, J., Oyunjargal, L., Parinussa, R.M., Park, E.-H., Parker, D., Parrington, M., Parsons, A.R., Pasch, R.J., Pascual-Ramírez, R., Paterson, A.M., Paulik, C., Pearce, P.R., Pelto, M.S., Peng, L., Perkins-Kirkpatrick, S.E., Perovich, D., Petropavlovskikh, I., Pezza, A.B., Phillips, D., Pinty, B., Pitts, M.C., Pons, M.R., Porter, A.O., Primicerio, R., Proshutinsky, A., Quegan, S., Quintana, J., Rahimzadeh, F., Rajeevan, M., Randriamarolaza, L., Razuvaev, V.N., Reagan, J., Reid, P., Reimer, C., Rémy, S., Renwick, J.A., Revadekar, J.V., Richter-Menge, J., Riffler, M., Rimmer, A., Rintoul, S., Robinson, D.A., Rodell, M., Rodríguez Solís, J.L., Romanovsky, V.E., Ronchail, J., Rosenlof, K.H., Roth, C., Rusak, J.A., Sabine, C.L., Sallée, J.-B., Sánchez-Lugo, A., Santee, M.L., Sawaengphokhai, P., Sayouri, A., Scambos, T.A., Schemm, J., Schladow, S.G., Schmid, C., Schmid, M., Schmidtko, S., Schreck, C.J., Selkirk, H.B., Send, U., Sensoy, S., Setzer, A., Sharp, M., Shaw, A., Shi, L., Shiklomanov, A.I., Shiklomanov, N.I., Siegel, D.A., Signorini, S.R., Sima, F., Simmons, A.J., Smeets, C.J.P.P., Smith, S.L., Spence, J.M., Srivastava, A.K., Stackhouse, P.W., Stammerjohn, S., Steinbrecht, W., Stella, J.L., Stengel, M., Stennett-Brown, R., Stephenson, T.S., Strahan, S., Streletskiy, D.A., Sun-Mack, S., Swart, S., Sweet, W., Talley, L.D., Tamar, G., Tank, S.E., Taylor, M.A., Tedesco, M., Teubner, K., Thoman, R.L., Thompson, P., Thomson, L., Timmermans, M.-L., Tirnanes, J.A., Tobin, S., Trachte, K., Trainer, V.L., Tretiakov, M., Trewin, B.C., Trotman, A.R., Tschudi, M., Van As, D., Van De Wal, R.S.W., van der A., R.J., Van Der Schalie, R., Van Der Schrier, G., Van Der Werf, G.R., Van Meerbeeck, C.J., Velicogna, I., Verburg, P., Vigneswaran, B., Vincent, L.A., Volkov, D., Vose, R.S., Wagner, W., Wåhlin, A., Wahr, J., Walsh, J., Wang, C., Wang, J., Wang, L., Wang, M., Wang, S.-H., Wanninkhof, R., Watanabe, S., Weber, M., Weller, R.A., Weyhenmeyer, G.A., Whitewood, R., Wijffels, S.E., Wilber, A.C., Wild, J.D., Willett, K.M., Williams, M.J.M., Willie, S., Wolken, G., Wong, T., Wood, E.F., Woolway, R.I., Wouters, B., Xue, Y., Yamada, R., Yim, S.-Y., Yin, X., Young, S.H., Yu, L., Zahid, H., Zambrano, E., Zhang, P., Zhao, G., Zhou, L., Ziemke, J.R., Love-Brotak, S.E., Gilbert, K., Maycock, T., Osborne, S., Sprain, M., Veasey, S.W., Ambrose, B.J., Griffin, J., Misch, D.J., Riddle, D.B., and Young, T.

Published
2016

10. Airborne-radar and ice-core observations of annual snow accumulation over Thwaites Glacier, West Antarctica confirm the spatiotemporal variability of global and regional atmospheric models

Author

Medley, B., Joughin, I., Das, S.B., Steig, E. J., Conway, H., Gogineni, S., Criscitiello, A.S., McConnell, J.R., Smith, B.E., van den Broeke, M.R., Lenaerts, J.T.M., Bromwich, D.H., Nicolas, J.P., Marine and Atmospheric Research, and Sub Dynamics Meteorology

Abstract

We use an airborne-radar method, verified with ice-core accumulation records, to determine the spatiotemporal variations of snow accumulation over Thwaites Glacier, West Antarctica between 1980 and 2009. We also present a regional evaluation of modeled accumulation in Antarctica. Comparisons between radar-derived measurements and model outputs show that three global models capture the interannual variability well (r > 0.9), but a high-resolution regional model (RACMO2) has better absolute accuracy and captures the observed spatial variability (r = 0.86). Neither the measured nor modeled accumulation records over Thwaites Glacier show any trend since 1980. Although an increase in accumulation may potentially accompany the observed warming in the region, the projected trend is too small to detect over the 30 year record.

Published
2013

11. Greenland Ice Sheet Mass Balance Reconstruction. Part I: Net Snow Accumulation (1600–2009)

Author

Box, J.E., Cressie, N., Bromwich, D.H., Jung, J.-H., van den Broeke, M.R., van Angelen, J.H., Forster, R.R., Miège, C., Mosley-Thompson, E., Vinther, B., McConnell, J.R., Marine and Atmospheric Research, and Sub Dynamics Meteorology

Abstract

Ice core data are combined with Regional Atmospheric Climate Model version 2 (RACMO2) output (1958–2010) to develop a reconstruction of Greenland ice sheet net snow accumulation rate, ^At(G), spanning the years 1600–2009. Regression parameters from regional climate model (RCM) output regressed on 86 ice cores are used with available cores in a given year resulting in the reconstructed values. Each core site’s residual variance is used to inversely weight the cores’ respective contributions. The interannual amplitude of the reconstructed accumulation rate is damped by the regressions and is thus calibrated to match that of the RCM data. Uncertainty and significance of changes is measured using statistical models. A 12% or 86 Gt yr21 increase in ice sheet accumulation rate is found from the end of the Little Ice Age in ;1840 to the last decade of the reconstruction. This 1840–1996 trend is 30% higher than that of 1600–2009, suggesting an accelerating accumulation rate. The correlation of ^A t(G) with the average surface air temperature in the Northern Hemisphere (SATNHt) remains positive through time, while the correlation of ^A t(G) with local near-surface air temperatures or North Atlantic sea surface temperatures is inconsistent, suggesting a hemispheric-scale climate connection. An annual sensitivity of ^At(G) to SATNHt of 6.8%K21 or 51 Gt K21 is found. The reconstuction, ^At(G), correlates consistently highly with the North Atlantic Oscillation index. However, at the 11-yr time scale, the sign of this correlation flips four times in the 1870–2005 period.

Published
2013

13. Airborne-radar and ice-core observations of annual snow accumulation over Thwaites Glacier, West Antarctica confirm the spatiotemporal variability of global and regional atmospheric models

Author

Marine and Atmospheric Research, Sub Dynamics Meteorology, Medley, B., Joughin, I., Das, S.B., Steig, E. J., Conway, H., Gogineni, S., Criscitiello, A.S., McConnell, J.R., Smith, B.E., van den Broeke, M.R., Lenaerts, J.T.M., Bromwich, D.H., Nicolas, J.P., Marine and Atmospheric Research, Sub Dynamics Meteorology, Medley, B., Joughin, I., Das, S.B., Steig, E. J., Conway, H., Gogineni, S., Criscitiello, A.S., McConnell, J.R., Smith, B.E., van den Broeke, M.R., Lenaerts, J.T.M., Bromwich, D.H., and Nicolas, J.P.

Published
2013

14. Greenland Ice Sheet Mass Balance Reconstruction. Part I: Net Snow Accumulation (1600–2009)

Author

Marine and Atmospheric Research, Sub Dynamics Meteorology, Box, J.E., Cressie, N., Bromwich, D.H., Jung, J.-H., van den Broeke, M.R., van Angelen, J.H., Forster, R.R., Miège, C., Mosley-Thompson, E., Vinther, B., McConnell, J.R., Marine and Atmospheric Research, Sub Dynamics Meteorology, Box, J.E., Cressie, N., Bromwich, D.H., Jung, J.-H., van den Broeke, M.R., van Angelen, J.H., Forster, R.R., Miège, C., Mosley-Thompson, E., Vinther, B., and McConnell, J.R.

Published
2013

16. How much, how fast?: A science review and outlook for research on the instability of Antarctica's Thwaites Glacier in the 21st century

Author

Scambos, Ted A., Bell, Robin E., Alley, Richard B., Anandakrishnan, S., Bromwich, D.H., Brunt, K., Christianson., K., Creyts, Timothy T., Das, S.B., DeConto, Robert M., Dutrieux, Pierre, Fricker, H.A., Holland, D., MacGregor, J., Medley, B., Nicolas, Julien P., Pollard, D., Siegfried, M.R., Smith, A.M., Steig, E.J., Trusel, L.D., Vaughan, D.G., and Yager, P.L.

Subjects
13. Climate action, Glaciology, Sea level, 14. Life underwater, Climatic changes, Glaciers, Glaciers--Climatic factors
Abstract

Constraining how much and how fast the West Antarctic Ice Sheet (WAIS) will change in the coming decades has recently been identified as the highest priority in Antarctic research (National Academies, 2015). Here we review recent research on WAIS and outline further scientific objectives for the area now identified as the most likely to undergo near-term significant change: Thwaites Glacier and the adjacent Amundsen Sea. Multiple lines of evidence point to an ongoing rapid loss of ice in this region in response to changing atmospheric and oceanic conditions. Models of the ice sheet's dynamic behavior indicate a potential for greatly accelerated ice loss as ocean-driven melting at the Thwaites Glacier grounding zone and nearby areas leads to thinning, faster flow, and retreat. A complete retreat of the Thwaites Glacier basin would raise global sea level by more than three meters by entraining ice from adjacent catchments. This scenario could occur over the next few centuries, and faster ice loss could occur through processes omitted from most ice flow models such as hydrofracture and ice cliff failure, which have been observed in recent rapid ice retreats elsewhere. Increased basal melt at the grounding zone and increased potential for hydrofracture due to enhanced surface melt could initiate a more rapid collapse of Thwaites Glacier within the next few decades.

17. Greenland

Author

Box, J.E., Bai, L.-S., Bensen, R., Bhattacharaya, I., Bromwich, D.H., Cappelen, J., Decker, D., NiGirolamo, N., Fettweis, X., Hall, D., Hanna, E., Mote, T., Tedesco, M., van de Wal, R., van den Broeke, M., Box, J.E., Bai, L.-S., Bensen, R., Bhattacharaya, I., Bromwich, D.H., Cappelen, J., Decker, D., NiGirolamo, N., Fettweis, X., Hall, D., Hanna, E., Mote, T., Tedesco, M., van de Wal, R., and van den Broeke, M.

18. State of the climate in 2013

Author

Blunden, J., Arndt, D. S., Willett, K. M., Dolman, A. J., Hurst, D. F., Rennie, J., Thorne, P. W., Donat, M. G., Dunn, R. J. H., Long, C. S., Christy, J. R., Noetzli, J., Christiansen, H. H., Gugliemin, M., Romanovsky, V. E., Shiklomanov, N. I., Smith, S. L., Zhao, L., Robinson, D. A., Pelto, M. S., Mears, C. A., Ho, S.-O. B., Peng, L., Wang, J., Vose, R. S., Hilburn, K., Yin, X., Kruk, M. C., Becker, A., Foster, M. J., Ackerman, S. A., Heidinger, A. K., Maddux, B. C., Stengel, M., Kim, H., Oki, T., Rodell, M., Chambers, D. P., Famiglietti, J. S., Dorigo, W. A., Chung, D., Parinussa, R. M., Reimer, C., Hahn, S., Liu, Y. Y., Wagner, W. W., de Jeu, R. A. M., Paulik, C., Wang, G., Allan, R., Folland, C. K., Tobin, I., Berrisford, P., Vautard, R., McVicar, T. R., Kratz, D. P., Stackhouse, P.W., Wong, T., Sawaengphokhai, P., Wilber, A. C., Gupta, S. K., Loeb, N. G., Lantz, K. O., Dlugokencky, E. J., Hall, B. D., Montzka, S. A., Dutton, G. S., Mühle, J., Elkins, J. W., Benedetti, A., Jones, L. T., Kaiser, J. W., Morcrette, J.-J., Remy, S., Weber, M., Steinbrecht, W., van der A., R. J., Coldewey-Egbers, M., Fioletov, V. E., Frith, S. M., Loyola, D., Wild, J. D., Davis, S. M., Rosenlof, K. H., Cooper, O. R., Ziemke, J., Flemming, J., Inness, A., Quegan, S., Ciais, P., Santoro, M., Pinty, B., Gobron, N., van der Werf, G. R., Newlin, M. L., Gregg, M. C., Xue, Y., Hu, Z.-Z., Kumar, A., Banzon, V., Smith, T. M., Rayner, N. A., Johnson, G. C., Lyman, J. M., Willis, J. K., Boyer, T., Antonov, J., Good, S. A., Domingues, C. M., Bindoff, N., Yu, L., Jin, X., Lagerloef, G. S. E., Kao, H.-Y., Reagan, J., Schmid, C., Locarnini, R., Lumpkin, R., Goni, G., Dohan, K., Baringer, M. O., McCarthy, G., Lankhorst, M., Smeed, D. A., Send, U., Rayner, D., Johns, W. E., Meinen, C. S., Cunningham, S. A., Kanzow, T. O., Frajka-Williams, E., Marotzke, J., Garzoli, S., Dong, S., Volkov, D., Hobbs, W. R., Merrifield, M. A., Thompson, P., Leuliette, E., Nerem, R. S., Hamlington, B., Mitchum, G. T., McInnes, K., Marra, J. J., Menendez, M., Sweet, W., Feely, R. A., Wanninkhof, R., Sabine, C. L., Mathis, J. T., Takahashi, T., Khatiwala, S., Franz, B. A., Behrenfeld, M. J., Siegel, D. A., Werdell, P. J., Diamond, H. J., Bell, G. D., L'Heureux, M., Halpert, M. S., Baxter, S., Gottschalck, J., Landsea, C. W., Goldenberg, S. B., Pasch, R. J., Blake, E. S., Schemm, J., Kimberlain, T. B., Schreck, C. J., Evans, T.E., Camargo, S. J., Gleason, K. L., Trewin, B. C., Lorrey, A. M., Fauchereau, N. C., Chappell, P. R., Ready, S., Goni, G. J., Knaff, J. A., Lin, I.-I., Wang, B., Mullan, A. B., Pezza, A. B., Coelho, C A. S., Wang, C., Fogarty, C. T., Klotzbach, P., Luo, J.-J., Lander, M. A., Guard, C. P. C., Jeffries, M. O., Richter-Menge, J., Overland, J., Key, J., Hanna, E., Hanssen-Bauer, I., Kim, B.-M., Kim, S.-J., Walsh, J., Wang, M., Bhatt, U. S., Liu, Y., Stone, R., Cox, C., Walden, V., Francis, J., Vavrus, S., Tang, Q., Bernhard, G., Manney, G., Grooss, J.-U., Muller, R., Heikkila, A., Johnsen, B., Koskela, T., Lakkala, K., Svendby, T., Dahlback, A., Bruhwiler, L., Laurila, T., Worthy, D., Quinn, P. K., Stohl, A., Baklanov, A., Flanner, M. G., Herber, A., Kupiainen, K., Law, K. S., Schmale, J., Sharma, S., Vestreng, V., Von Salzen, K., Perovich, D., Gerland, S., Hendricks, S., Meier, W., Nicolaus, M., Tschudi, M., Timmermans, M.-L., Ashik, I., Frolov, I., Ha, H. K., Ingvaldsen, R., Kikuchi, T., Kim, T. W., Krishfield, R., Loeng, H., Nishino, S., Pickart, R., Polyakov, I., Rabe, B., Schauer, U., Schlosser, P., Smethie, W. M., Sokolov, V., Steele, M., Toole, J., Williams, W., Woodgate, R., Zimmerman, S., Cross, J. N., Evans, W., Anderson, L., Yamamoto-Kawai, M., Derksen, C., Brown, R., Luojus, K., Sharp, M., Wolken, G., Geai, M.-L., Burgess, D., Arendt, A., Wouters, B., Kohler, J., Andreassen, L. M., Tedesco, M., Box, J. E., Cappelen, J., Fettweis, X., Jensen, T. S., Mote, T., Rennermalm, A. K., Smith, L. C., van de Wal, R. S. W., Wahr, J., Duguay, C. R., Brown, L. C., Kang, K.-K., Kheyrollah Pour, H., Streletskiy, D. A., Drozdov, D. S., Malkova, G. V., Oberman, N. G., Kholodov, A. L., Marchenko, S. S., Fogt, R. L., Scambos, T.A., Clem, K.R., Barreira, S., Colwell, S., Keller, L.M., Lazzara, M.A., Setzer, A., Bromwich, D.H., Wang, S.-H., Wang, L., Liu, H., Wang, S., Shu, S., Massom, R.A., Reid, P., Stammerjohn, S., Lieser, J., Newman, P.A., Kramarova, N., Nash, E.R., Pitts, M.C., Johnson, B.f, Santee, M.L., Braathen, G.O., Campbell, G.G., Pope, A., Haran, T., Sanchez-Lugo, A., Renwick, J.A., Thiaw, W.M., Weaver, S.J., Vincent, L.A., Phillips, D., Whitewood, R., Crouch, J., Heim, Jr., Fenimore, C., Augustine, J., Pascual, R., Albanil, A., Vazquez, J.L., Lobato, R., Amador, J.A., Alfaro, E.J., Hidalgo, H.G., Duran-Quesada, A.M., Calderon, B., Rivera, I.L., Vega, C., Stephenson, T.S., Taylor, M.A., Trotman, A.R., Porter, A.O., Gonzalez, I.T., Spence, J.M., McLean, N., Campbell, J.D., Brown, G., Butler, M., Blenman, R.C., Aaron-Morrison, A.P., Marcellin-Honore, V., Marti­nez, R., Arevalo, J., Carrasco, G., Euscategui, C., Bazo, J., Nieto, J.J., Zambrano, E., Marengo, J.A., Alves, L.M., Espinoza, J.C., Ronchail, J., Bidegain, M., Stella, J.L., Penalba, O.C., Kabidi, K., Sayouri, A., Ebrahim, A., James, I.A., Dekaa, F.S., Sima, F., Coulibaly, K.A., Gitau, W., Chang'a, L., Oludhe, C.S., Ogallo, L.A., Atheru, Z., Ambenje, P., Kijazi, A., Ng'ongolo, H., Luhunga, P., Levira, P., Kruger, A., McBride, C., Rakotomavo, Z., Jumaux, G., Trachte, K., Bissolli, P., Obregon, A., Nitsche, H., Parker, D., Kennedy, J.J., Kendon, M., Trigo, R., Barriopedro, D., Ramos, A., Sensoy, S., Hovhannisyan, D., Bulygina, O.N., Khoshkam, M., Korshunova, N.N., Oyunjargal, L., Park, E.-H., Rahimzadeh, F., Rajeevan, M., Razuvaev, V.N., Revadekar, J.V., Srivastava, A.K., Yamada, R., Zhang, P., Tanaka, S., Yoshimatsu, K., Ohno, H., Ganter, C., Macara, G.R., McGree, S., Tobin, S., Blunden, J., Arndt, D. S., Willett, K. M., Dolman, A. J., Hurst, D. F., Rennie, J., Thorne, P. W., Donat, M. G., Dunn, R. J. H., Long, C. S., Christy, J. R., Noetzli, J., Christiansen, H. H., Gugliemin, M., Romanovsky, V. E., Shiklomanov, N. I., Smith, S. L., Zhao, L., Robinson, D. A., Pelto, M. S., Mears, C. A., Ho, S.-O. B., Peng, L., Wang, J., Vose, R. S., Hilburn, K., Yin, X., Kruk, M. C., Becker, A., Foster, M. J., Ackerman, S. A., Heidinger, A. K., Maddux, B. C., Stengel, M., Kim, H., Oki, T., Rodell, M., Chambers, D. P., Famiglietti, J. S., Dorigo, W. A., Chung, D., Parinussa, R. M., Reimer, C., Hahn, S., Liu, Y. Y., Wagner, W. W., de Jeu, R. A. M., Paulik, C., Wang, G., Allan, R., Folland, C. K., Tobin, I., Berrisford, P., Vautard, R., McVicar, T. R., Kratz, D. P., Stackhouse, P.W., Wong, T., Sawaengphokhai, P., Wilber, A. C., Gupta, S. K., Loeb, N. G., Lantz, K. O., Dlugokencky, E. J., Hall, B. D., Montzka, S. A., Dutton, G. S., Mühle, J., Elkins, J. W., Benedetti, A., Jones, L. T., Kaiser, J. W., Morcrette, J.-J., Remy, S., Weber, M., Steinbrecht, W., van der A., R. J., Coldewey-Egbers, M., Fioletov, V. E., Frith, S. M., Loyola, D., Wild, J. D., Davis, S. M., Rosenlof, K. H., Cooper, O. R., Ziemke, J., Flemming, J., Inness, A., Quegan, S., Ciais, P., Santoro, M., Pinty, B., Gobron, N., van der Werf, G. R., Newlin, M. L., Gregg, M. C., Xue, Y., Hu, Z.-Z., Kumar, A., Banzon, V., Smith, T. M., Rayner, N. A., Johnson, G. C., Lyman, J. M., Willis, J. K., Boyer, T., Antonov, J., Good, S. A., Domingues, C. M., Bindoff, N., Yu, L., Jin, X., Lagerloef, G. S. E., Kao, H.-Y., Reagan, J., Schmid, C., Locarnini, R., Lumpkin, R., Goni, G., Dohan, K., Baringer, M. O., McCarthy, G., Lankhorst, M., Smeed, D. A., Send, U., Rayner, D., Johns, W. E., Meinen, C. S., Cunningham, S. A., Kanzow, T. O., Frajka-Williams, E., Marotzke, J., Garzoli, S., Dong, S., Volkov, D., Hobbs, W. R., Merrifield, M. A., Thompson, P., Leuliette, E., Nerem, R. S., Hamlington, B., Mitchum, G. T., McInnes, K., Marra, J. J., Menendez, M., Sweet, W., Feely, R. A., Wanninkhof, R., Sabine, C. L., Mathis, J. T., Takahashi, T., Khatiwala, S., Franz, B. A., Behrenfeld, M. J., Siegel, D. A., Werdell, P. J., Diamond, H. J., Bell, G. D., L'Heureux, M., Halpert, M. S., Baxter, S., Gottschalck, J., Landsea, C. W., Goldenberg, S. B., Pasch, R. J., Blake, E. S., Schemm, J., Kimberlain, T. B., Schreck, C. J., Evans, T.E., Camargo, S. J., Gleason, K. L., Trewin, B. C., Lorrey, A. M., Fauchereau, N. C., Chappell, P. R., Ready, S., Goni, G. J., Knaff, J. A., Lin, I.-I., Wang, B., Mullan, A. B., Pezza, A. B., Coelho, C A. S., Wang, C., Fogarty, C. T., Klotzbach, P., Luo, J.-J., Lander, M. A., Guard, C. P. C., Jeffries, M. O., Richter-Menge, J., Overland, J., Key, J., Hanna, E., Hanssen-Bauer, I., Kim, B.-M., Kim, S.-J., Walsh, J., Wang, M., Bhatt, U. S., Liu, Y., Stone, R., Cox, C., Walden, V., Francis, J., Vavrus, S., Tang, Q., Bernhard, G., Manney, G., Grooss, J.-U., Muller, R., Heikkila, A., Johnsen, B., Koskela, T., Lakkala, K., Svendby, T., Dahlback, A., Bruhwiler, L., Laurila, T., Worthy, D., Quinn, P. K., Stohl, A., Baklanov, A., Flanner, M. G., Herber, A., Kupiainen, K., Law, K. S., Schmale, J., Sharma, S., Vestreng, V., Von Salzen, K., Perovich, D., Gerland, S., Hendricks, S., Meier, W., Nicolaus, M., Tschudi, M., Timmermans, M.-L., Ashik, I., Frolov, I., Ha, H. K., Ingvaldsen, R., Kikuchi, T., Kim, T. W., Krishfield, R., Loeng, H., Nishino, S., Pickart, R., Polyakov, I., Rabe, B., Schauer, U., Schlosser, P., Smethie, W. M., Sokolov, V., Steele, M., Toole, J., Williams, W., Woodgate, R., Zimmerman, S., Cross, J. N., Evans, W., Anderson, L., Yamamoto-Kawai, M., Derksen, C., Brown, R., Luojus, K., Sharp, M., Wolken, G., Geai, M.-L., Burgess, D., Arendt, A., Wouters, B., Kohler, J., Andreassen, L. M., Tedesco, M., Box, J. E., Cappelen, J., Fettweis, X., Jensen, T. S., Mote, T., Rennermalm, A. K., Smith, L. C., van de Wal, R. S. W., Wahr, J., Duguay, C. R., Brown, L. C., Kang, K.-K., Kheyrollah Pour, H., Streletskiy, D. A., Drozdov, D. S., Malkova, G. V., Oberman, N. G., Kholodov, A. L., Marchenko, S. S., Fogt, R. L., Scambos, T.A., Clem, K.R., Barreira, S., Colwell, S., Keller, L.M., Lazzara, M.A., Setzer, A., Bromwich, D.H., Wang, S.-H., Wang, L., Liu, H., Wang, S., Shu, S., Massom, R.A., Reid, P., Stammerjohn, S., Lieser, J., Newman, P.A., Kramarova, N., Nash, E.R., Pitts, M.C., Johnson, B.f, Santee, M.L., Braathen, G.O., Campbell, G.G., Pope, A., Haran, T., Sanchez-Lugo, A., Renwick, J.A., Thiaw, W.M., Weaver, S.J., Vincent, L.A., Phillips, D., Whitewood, R., Crouch, J., Heim, Jr., Fenimore, C., Augustine, J., Pascual, R., Albanil, A., Vazquez, J.L., Lobato, R., Amador, J.A., Alfaro, E.J., Hidalgo, H.G., Duran-Quesada, A.M., Calderon, B., Rivera, I.L., Vega, C., Stephenson, T.S., Taylor, M.A., Trotman, A.R., Porter, A.O., Gonzalez, I.T., Spence, J.M., McLean, N., Campbell, J.D., Brown, G., Butler, M., Blenman, R.C., Aaron-Morrison, A.P., Marcellin-Honore, V., Marti­nez, R., Arevalo, J., Carrasco, G., Euscategui, C., Bazo, J., Nieto, J.J., Zambrano, E., Marengo, J.A., Alves, L.M., Espinoza, J.C., Ronchail, J., Bidegain, M., Stella, J.L., Penalba, O.C., Kabidi, K., Sayouri, A., Ebrahim, A., James, I.A., Dekaa, F.S., Sima, F., Coulibaly, K.A., Gitau, W., Chang'a, L., Oludhe, C.S., Ogallo, L.A., Atheru, Z., Ambenje, P., Kijazi, A., Ng'ongolo, H., Luhunga, P., Levira, P., Kruger, A., McBride, C., Rakotomavo, Z., Jumaux, G., Trachte, K., Bissolli, P., Obregon, A., Nitsche, H., Parker, D., Kennedy, J.J., Kendon, M., Trigo, R., Barriopedro, D., Ramos, A., Sensoy, S., Hovhannisyan, D., Bulygina, O.N., Khoshkam, M., Korshunova, N.N., Oyunjargal, L., Park, E.-H., Rahimzadeh, F., Rajeevan, M., Razuvaev, V.N., Revadekar, J.V., Srivastava, A.K., Yamada, R., Zhang, P., Tanaka, S., Yoshimatsu, K., Ohno, H., Ganter, C., Macara, G.R., McGree, S., and Tobin, S.

Abstract

In 2013, the vast majority of the monitored climate variables reported here maintained trends established in recent decades. ENSO was in a neutral state during the entire year, remaining mostly on the cool side of neutral with modest impacts on regional weather patterns around the world. This follows several years dominated by the effects of either La Niña or El Niño events. According to several independent analyses, 2013 was again among the 10 warmest years on record at the global scale, both at the Earths surface and through the troposphere. Some regions in the Southern Hemisphere had record or near-record high temperatures for the year. Australia observed its hottest year on record, while Argentina and New Zealand reported their second and third hottest years, respectively. In Antarctica, Amundsen-Scott South Pole Station reported its highest annual temperature since records began in 1957. At the opposite pole, the Arctic observed its seventh warmest year since records began in the early 20th century. At 20-m depth, record high temperatures were measured at some permafrost stations on the North Slope of Alaska and in the Brooks Range. In the Northern Hemisphere extratropics, anomalous meridional atmospheric circulation occurred throughout much of the year, leading to marked regional extremes of both temperature and precipitation. Cold temperature anomalies during winter across Eurasia were followed by warm spring temperature anomalies, which were linked to a new record low Eurasian snow cover extent in May. Minimum sea ice extent in the Arctic was the sixth lowest since satellite observations began in 1979. Including 2013, all seven lowest extents on record have occurred in the past seven years. Antarctica, on the other hand, had above-average sea ice extent throughout 2013, with 116 days of new daily high extent records, including a new daily maximum sea ice area of 19.57 million km2 reached on 1 October. ENSO-neutral conditions in the eastern central Pacific

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