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4. The Alpha Magnetic Spectrometer (AMS) on the international space station:Part II — results from the first seven years

Author

Aguilar, M. (M.), Cavasonza, L. A. (L. Ali), Ambrosi, G. (G.), Arruda, L. (L.), Attig, N. (N.), Barao, F. (F.), Barrin, L. (L.), Bartoloni, A. (A.), Basegmez-du Pree, S. (S.), Bates, J. (J.), Battiston, R. (R.), Behlmann, M. (M.), Beischer, B. (B.), Berdugo, J. (J.), Bertucci, B. (B.), Bindi, V. (V), de Boer, W. (W.), Bollweg, K. (K.), Borgia, B. (B.), Boschini, M. (Mj), Bourquin, M. (M.), Bueno, E. F. (E. F.), Burger, J. (J.), Burger, W. J. (W. J.), Burmeister, S. (S.), Cai, X. D. (X. D.), Capell, M. (M.), Casaus, J. (J.), Castellini, G. (G.), Cervelli, F. (F.), Chang, Y. H. (Y. H.), Chen, G. M. (G. M.), Chen, H. S. (H. S.), Chen, Y. (Y.), Cheng, L. (L.), Chou, H. Y. (H. Y.), Chouridou, S. (S.), Choutko, V. (V), Chung, C. H. (C. H.), Clark, C. (C.), Coignet, G. (G.), Consolandi, C. (C.), Contin, A. (A.), Corti, C. (C.), Cui, Z. (Z.), Dadzie, K. (K.), Dai, Y. M. (Y. M.), Delgado, C. (C.), Della Torre, S. (S.), Demirkoz, M. B. (M. B.), Derome, L. (L.), Di Falco, S. (S.), Di Felice, V. (V), Diaz, C. (C.), Dimiccoli, F. (F.), von Doetinchem, P. (P.), Dong, F. (F.), Donnini, F. (F.), Duranti, M. (M.), Egorov, A. (A.), Eline, A. (A.), Feng, J. (J.), Fiandrini, E. (E.), Fisher, P. (P.), Formato, V. (V), Freeman, C. (C.), Galaktionov, Y. (Y.), Gamez, C. (C.), Garcia-Lopez, R. J. (R. J.), Gargiulo, C. (C.), Gast, H. (H.), Gebauer, I. (I), Gervasi, M. (M.), Giovacchini, F. (F.), Gomez-Coral, D. M. (D. M.), Gong, J. (J.), Goy, C. (C.), Grabski, V. (V), Grandi, D. (D.), Graziani, M. (M.), Guo, K. H. (K. H.), Haino, S. (S.), Han, K. C. (K. C.), Hashmani, R. K. (R. K.), He, Z. H. (Z. H.), Heber, B. (B.), Hsieh, T. H. (T. H.), Hu, J. Y. (J. Y.), Huang, Z. C. (Z. C.), Hungerford, W. (W.), Incagli, M. (M.), Jang, W. Y. (W. Y.), Jia, Y. (Yi), Jinchi, H. (H.), Kanishev, K. (K.), Khiali, B. (B.), Kim, G. N. (G. N.), Kirn, T. (Th), Konyushikhin, M. (M.), Kounina, O. (O.), Kounine, A. (A.), Koutsenko, V. (V), Kuhlman, A. (A.), Kulemzin, A. (A.), La Vacca, G. (G.), Laudi, E. (E.), Laurenti, G. (G.), Lazzizzera, I. (I), Lebedev, A. (A.), Lee, H. T. (H. T.), Lee, S. C. (S. C.), Leluc, C. (C.), Li, J. Q. (J. Q.), Li, M. (M.), Li, Q. (Q.), Li, S. (S.), Li, T. X. (T. X.), Li, Z. H. (Z. H.), Light, C. (C.), Lin, C. H. (C. H.), Lippert, T. (T.), Liu, Z. (Z.), Lu, S. Q. (S. Q.), Lu, Y. S. (Y. S.), Luebelsmeyer, K. (K.), Luo, J. Z. (J. Z.), Lyu, S. S. (S. S.), Machate, F. (F.), Mana, C. (C.), Marin, J. (J.), Marquardt, J. (J.), Martin, T. (T.), Martinez, G. (G.), Masi, N. (N.), Maurin, D. (D.), Menchaca-Rocha, A. (A.), Meng, Q. (Q.), Mo, D. C. (D. C.), Molero, M. (M.), Mott, P. (P.), Mussolin, L. (L.), Ni, J. Q. (J. Q.), Nikonov, N. (N.), Nozzoli, F. (F.), Oliva, A. (A.), Orcinha, M. (M.), Palermo, M. (M.), Palmonari, F. (F.), Paniccia, M. (M.), Pashnin, A. (A.), Pauluzzi, M. (M.), Pensotti, S. (S.), Phan, H. D. (H. D.), Plyaskin, V. (V), Pohl, M. (M.), Porter, S. (S.), Qi, X. M. (X. M.), Qin, X. (X.), Qu, Z. Y. (Z. Y.), Quadrani, L. (L.), Rancoita, P. G. (P. G.), Rapin, D. (D.), Conde, A. R. (A. Reina), Rosier-Lees, S. (S.), Rozhkov, A. (A.), Rozza, D. (D.), Sagdeev, R. (R.), Schael, S. (S.), Schmidt, S. M. (S. M.), von Dratzig, A. S. (A. Schulz), Schwering, G. (G.), Seo, E. S. (E. S.), Shan, B. S. (B. S.), Shi, J. Y. (J. Y.), Siedenburg, T. (T.), Solano, C. (C.), Song, J. W. (J. W.), Sonnabend, R. (R.), Sun, Q. (Q.), Sun, Z. T. (Z. T.), Tacconi, M. (M.), Tang, X. W. (X. W.), Tang, Z. C. (Z. C.), Tian, J. (J.), Ting, S. C. (Samuel C. C.), Ting, S. M. (S. M.), Tomassetti, N. (N.), Torsti, J. (J.), Tuysuz, C. (C.), Urban, T. (T.), Usoskin, I. (I), Vagelli, V. (V.), Vainio, R. (R.), Valente, E. (E.), Valtonen, E. (E.), Vazquez Acosta, M. (M.), Vecchi, M. (M.), Velasco, M. (M.), Vialle, J. P. (J. P.), Wang, L. Q. (L. Q.), Wang, N. H. (N. H.), Wang, Q. L. (Q. L.), Wang, S. (S.), Wang, X. (X.), Wang, Z. X. (Z. X.), Wei, J. (J.), Weng, Z. L. (Z. L.), Wu, H. (H.), Xiong, R. Q. (R. Q.), Xu, W. (W.), Yan, Q. (Q.), Yang, Y. (Y.), Yi, H. (H.), Yu, Y. J. (Y. J.), Yu, Z. Q. (Z. Q.), Zannoni, M. (M.), Zhang, C. (C.), Zhang, F. (F.), Zhang, F. Z. (F. Z.), Zhang, J. H. (J. H.), Zhang, Z. (Z.), Zhao, F. (F.), Zheng, Z. M. (Z. M.), Zhuang, H. L. (H. L.), Zhukov, V. (V), Zichichi, A. (A.), Zimmermann, N. (N.), and Zuccon, P. (P.)

Subjects
Cosmic ray detectors, Particle dark matter, Astrophysics::High Energy Astrophysical Phenomena, Cosmic ray composition & spectra, Cosmic ray propagation, International space station, Alpha Magnetic Spectrometer, Cosmic ray sources, Cosmic ray acceleration, Particle astrophysics
Abstract

The Alpha Magnetic Spectrometer (AMS) is a precision particle physics detector on the International Space Station (ISS) conducting a unique, long-duration mission of fundamental physics research in space. The physics objectives include the precise studies of the origin of dark matter, antimatter, and cosmic rays as well as the exploration of new phenomena. Following a 16-year period of construction and testing, and a precursor flight on the Space Shuttle, AMS was installed on the ISS on May 19, 2011. In this report we present results based on 120 billion charged cosmic ray events up to multi-TeV energies. This includes the fluxes of positrons, electrons, antiprotons, protons, and nuclei. These results provide unexpected information, which cannot be explained by the current theoretical models. The accuracy and characteristics of the data, simultaneously from many different types of cosmic rays, provide unique input to the understanding of origins, acceleration, and propagation of cosmic rays.

Published
2020

9. STATE OF THE CLIMATE IN 2011 Special Supplement to the Bulletin of the American Meteorological Society Vol. 93, No. 7, July 2012

Author

Arndt, D. S., Blunden, J., Willett, K. M., Dolman, A. J., Hall, B. D., Thorne, P. W., Gregg, M. C., Newlin, M. L., Xue, Y., Hu, Z., Kumar, A., Banzon, V., Smith, T. M., Rayner, N. A., Jeffries, M. O., Richter-Menge, J., Overland, J., Bhatt, U., Key, J., Liu, Y., Walsh, J., Wang, M., Fogt, R. L., Scambos, T. A., Wovrosh, A. J., Barreira, S., Sanchez-Lugo, A., Renwick, J. A., Thiaw, W. M., Weaver, S. J., Whitewood, R., Phillips, D., Achberger, C., Ackerman, S. A., Ahmed, F. H., Albanil-Encarnacion, A., Alfaro, E. J., Alves, L. M., Allan, R., Amador, J. A., Ambenje, P., Antoine, M. D., Antonov, J., Arevalo, J., Ashik, I., Atheru, Z., Baccini, A., Baez, J., Baringer, M. O., Barriopedro, D. E., Bates, J. J., Becker, A., Behrenfeld, M. J., Bell, G. D., Benedetti, A., Bernhard, G., Berrisford, P., Berry, D. I., Beszczynska-Moeller, A., Bhatt, U. S., Bidegain, M., Bieniek, P., Birkett, C., Bissolli, P., Blake, E. S., Boudet-Rouco, D., Box, J. E., Boyer, T., Braathen, G. O., Brackenridge, G. R., Brohan, P., Bromwich, D. H., Brown, L., Brown, R., Bruhwiler, L., Bulygina, O. N., Burrows, J., Calderon, B., Camargo, S. J., Cappellen, J., Carmack, E., Carrasco, G., Chambers, D. P., Christiansen, H. H., Christy, J., Chung, D., Ciais, P., Coehlo, C. A. S., Colwell, S., Comiso, J., Cretaux, J. F., Crouch, J., Cunningham, S. A., Jeu, R. A. M., Demircan, M., Derksen, C., Diamond, H. J., Dlugokencky, E. J., Dohan, K., Dorigo, W. A., Drozdov, D. S., Duguay, C., Dutton, E., Dutton, G. S., Elkins, J. W., Epstein, H. E., Famiglietti, J. S., Fanton D Andon, O. H., Feely, R. A., Fekete, B. M., Fenimore, C., Fernandez-Prieto, D., Fields, E., Fioletov, V., Folland, C., Foster, M. J., Frajka-Williams, E., Franz, B. A., Frey, K., Frith, S. H., Frolov, I., Frost, G. V., Ganter, C., Garzoli, S., Gitau, W., Gleason, K. L., Gobron, N., Goldenberg, S. B., Goni, G., Gonzalez-Garcia, I., Gonzalez-Rodriguez, N., Good, S. A., Goryl, P., Gottschalck, J., Gouveia, C. M., Griffiths, G. M., Grigoryan, V., Grooss, J. U., Guard, C., Guglielmin, M., Halpert, M. S., Heidinger, A. K., Heikkila, A., Heim, R. R., Hennon, P. A., Hidalgo, H. G., Hilburn, K., Ho, S. P., Hobbs, W. R., Holgate, S., Hook, S. J., Hovsepyan, A., Hu, Z. Z., Hugony, S., Hurst, D. F., Ingvaldsen, R., Itoh, M., Jaimes, E., Jeffries, M., Johns, W. E., Johnsen, B., Johnson, B., Johnson, G. C., Jones, L. T., Jumaux, G., Kabidi, K., Kaiser, J. W., Kang, K. K., Kanzow, T. O., Kao, H. Y., Keller, L. M., Kendon, M., Kennedy, J. J., Kervankiran, S., Khatiwala, S., Kholodov, A. L., Khoshkam, M., Kikuchi, T., Kimberlain, T. B., King, D., Knaff, J. A., Korshunova, N. N., Koskela, T., Kratz, D. P., Krishfield, R., Kruger, A., Kruk, M. C., Lagerloef, G., Lakkala, K., Lammers, R. B., Lander, M. A., Landsea, C. W., Lankhorst, M., Lapinel-Pedroso, B., Lazzara, M. A., Leduc, S., Lefale, P., Leon, G., Leon-Lee, A., Leuliette, E., Levitus, S., L Heureux, M., Lin, II, Liu, H. X., Liu, Y. J., Lobato-Sanchez, R., Locarnini, R., Loeb, N. G., Loeng, H., Long, C. S., Lorrey, A. M., Lumpkin, R., Myhre, C. L., Jing-Jia Luo, Lyman, J. M., Maccallum, S., Macdonald, A. M., Maddux, B. C., Manney, G., Marchenko, S. S., Marengo, J. A., Maritorena, S., Marotzke, J., Marra, J. J., Martinez-Sanchez, O., Maslanik, J., Massom, R. A., Mathis, J. T., Mcbride, C., Mcclain, C. R., Mcgrath, D., Mcgree, S., Mclaughlin, F., Mcvicar, T. R., Mears, C., Meier, W., Meinen, C. S., Menendez, M., Merchant, C., Merrifield, M. A., Miller, L., Mitchum, G. T., Montzka, S. A., Moore, S., Mora, N. P., Morcrette, J. J., Mote, T., Muhle, J., Mullan, A. B., Muller, R., Myhre, C., Nash, E. R., Nerem, R. S., Newman, P. A., Ngari, A., Nishino, S., Njau, L. N., Noetzli, J., Oberman, N. G., Obregon, A., Ogallo, L., Oludhe, C., Oyunjargal, L., Parinussa, R. M., Park, G. H., Parker, D. E., Pasch, R. J., Pascual-Ramirez, R., Pelto, M. S., Penalba, O., Perez-Suarez, R., Perovich, D., Pezza, A. B., Pickart, R., Pinty, B., Pinzon, J., Pitts, M. C., Pour, H. K., Prior, J., Privette, J. L., Proshutinsky, A., Quegan, S., Quintana, J., Rabe, B., Rahimzadeh, F., Rajeevan, M., Rayner, D., Raynolds, M. K., Razuvaev, V. N., Reagan, J., Reid, P., Revadekar, J., Rex, M., Rivera, I. L., Robinson, D. A., Rodell, M., Roderick, M. L., Romanovsky, V. E., Ronchail, J., Rosenlof, K. H., Rudels, B., Sabine, C. L., Santee, M. L., Sawaengphokhai, P., Sayouri, A., Schauer, U., Schemm, J., Schmid, C., Schreck, C., Semiletov, I., Send, U., Sensoy, S., Shakhova, N., Sharp, M., Shiklomanov, N. I., Shimada, K., Shin, J., Siegel, D. A., Simmons, A., Skansi, M., Sokolov, V., Spence, J., Srivastava, A. K., Stackhouse, P. W., Stammerjohn, S., Steele, M., Steffen, K., Steinbrecht, W., Stephenson, T., Stolarski, R. S., Sweet, W., Takahashi, T., Taylor, M. A., Tedesco, M., Thepaut, J. N., Thompson, P., Timmermans, M. L., Tobin, S., Toole, J., Trachte, K., Trewin, B. C., Trigo, R. M., Trotman, A., Tucker, C. J., Ulupinar, Y., Wal, R. S. W., Werf, G. R., Vautard, R., Votaw, G., Wagner, W. W., Wahr, J., Walker, D. A., Wang, C. Z., Wang, J. H., Wang, L., Wang, M. H., Wang, S. H., Wanninkhof, R., Weaver, S., Weber, M., Weingartner, T., Weller, R. A., Wentz, F., Wilber, A. C., Williams, W., Willis, J. K., Wilson, R. C., Wolken, G., Wong, T. M., Woodgate, R., Yamada, R., Yamamoto-Kawai, M., Yoder, J. A., Yu, L. S., Yueh, S., Zhang, L. Y., Zhang, P. Q., Zhao, L., Zhou, X. 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Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Université Paris Diderot - Paris 7 (UPD7), Instituto Uruguayo de Meteorología, Javier Barrios Amorín 1488, CP 11200, Montevideo, Uruguay, Science Systems and Applications, Inc. [Hampton] (SSAI), National Snow and Ice Data Center (NSIDC), Naval Postgraduate School (NPS), University of California [Berkeley] (UC Berkeley), Centre de physique moléculaire optique et hertzienne (CPMOH), Université Sciences et Technologies - Bordeaux 1 (UB)-Centre National de la Recherche Scientifique (CNRS), CYRIC, Tohoku University [Sendai], The University of Tennessee [Knoxville], Oak Ridge National Laboratory [Oak Ridge] (ORNL), UT-Battelle, LLC, The University Centre in Svalbard (UNIS), Institute of Arctic Alpine Research [University of Colorado Boulder] (INSTAAR), Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Meteorologisches Observatorium Hohenpeißenberg (MOHp), Deutscher Wetterdienst [Offenbach] (DWD), British Antarctic Survey (BAS), Natural Environment Research Council (NERC), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Universidade de Lisboa (ULISBOA), University of California [Irvine] (UCI), University of California-University of California, Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Universitá degli Studi dell’Insubria, University of Costa Rica, Météo France [Sainte-Clotilde], Météo France, University of Oxford [Oxford], Scripps Institution of Oceanography (SIO), Huazhong Agricultural University, University of California, NMR and Molecular Imaging Laboratory [Mons], University of Mons [Belgium] (UMONS), Lausanne University Hospital [Switzerland], Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Diderot - Paris 7 (UPD7), Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Berkeley University of California (UC BERKELEY), Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1, and Institute of Arctic and Alpine Research (INSTAAR)

Subjects
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography
Abstract

International audience; Large-scale climate patterns influenced temperature and weather patterns around the globe in 2011. In particular, a moderate-to-strong La Nina at the beginning of the year dissipated during boreal spring but reemerged during fall. The phenomenon contributed to historical droughts in East Africa, the southern United States, and northern Mexico, as well the wettest two-year period (2010-11) on record for Australia, particularly remarkable as this follows a decade-long dry period. Precipitation patterns in South America were also influenced by La Nina. Heavy rain in Rio de Janeiro in January triggered the country's worst floods and landslides in Brazil's history. The 2011 combined average temperature across global land and ocean surfaces was the coolest since 2008, but was also among the 15 warmest years on record and above the 1981-2010 average. The global sea surface temperature cooled by 0.1 degrees C from 2010 to 2011, associated with cooling influences of La Nina. Global integrals of upper ocean heat content for 2011 were higher than for all prior years, demonstrating the Earth's dominant role of the oceans in the Earth's energy budget. In the upper atmosphere, tropical stratospheric temperatures were anomalously warm, while polar temperatures were anomalously cold. This led to large springtime stratospheric ozone reductions in polar latitudes in both hemispheres. Ozone concentrations in the Arctic stratosphere during March were the lowest for that period since satellite records began in 1979. An extensive, deep, and persistent ozone hole over the Antarctic in September indicates that the recovery to pre-1980 conditions is proceeding very slowly. Atmospheric carbon dioxide concentrations increased by 2.10 ppm in 2011, and exceeded 390 ppm for the first time since instrumental records began. Other greenhouse gases also continued to rise in concentration and the combined effect now represents a 30% increase in radiative forcing over a 1990 baseline. Most ozone depleting substances continued to fall. The global net ocean carbon dioxide uptake for the 2010 transition period from El Nino to La Nina, the most recent period for which analyzed data are available, was estimated to be 1.30 Pg C yr(-1), almost 12% below the 29-year long-term average. Relative to the long-term trend, global sea level dropped noticeably in mid-2010 and reached a local minimum in 2011. The drop has been linked to the La Nina conditions that prevailed throughout much of 2010-11. Global sea level increased sharply during the second half of 2011. Global tropical cyclone activity during 2011 was well-below average, with a total of 74 storms compared with the 1981-2010 average of 89. Similar to 2010, the North Atlantic was the only basin that experienced above-normal activity. For the first year since the widespread introduction of the Dvorak intensity-estimation method in the 1980s, only three tropical cyclones reached Category 5 intensity level-all in the Northwest Pacific basin. The Arctic continued to warm at about twice the rate compared with lower latitudes. Below-normal summer snowfall, a decreasing trend in surface albedo, and above-average surface and upper air temperatures resulted in a continued pattern of extreme surface melting, and net snow and ice loss on the Greenland ice sheet. Warmer-than-normal temperatures over the Eurasian Arctic in spring resulted in a new record-low June snow cover extent and spring snow cover duration in this region. In the Canadian Arctic, the mass loss from glaciers and ice caps was the greatest since GRACE measurements began in 2002, continuing a negative trend that began in 1987. New record high temperatures occurred at 20 m below the land surface at all permafrost observatories on the North Slope of Alaska, where measurements began in the late 1970s. Arctic sea ice extent in September 2011 was the second-lowest on record, while the extent of old ice (four and five years) reached a new record minimum that was just 19% of normal. On the opposite pole, austral winter and spring temperatures were more than 3 degrees C above normal over much of the Antarctic continent. However, winter temperatures were below normal in the northern Antarctic Peninsula, which continued the downward trend there during the last 15 years. In summer, an all-time record high temperature of -12.3 degrees C was set at the South Pole station on 25 December, exceeding the previous record by more than a full degree. Antarctic sea ice extent anomalies increased steadily through much of the year, from briefly setting a record low in April, to well above average in December. The latter trend reflects the dispersive effects of low pressure on sea ice and the generally cool conditions around the Antarctic perimeter.

Published
2012
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10. U.S. temperature and drought: Recent anomalies and trends

Author

Karl, T. R., primary, Gleason, B. E., additional, Menne, M. J., additional, McMahon, J. R., additional, Heim, R. R., additional, Brewer, M. J., additional, Kunkel, K. E., additional, Arndt, D. S., additional, Privette, J. L., additional, Bates, J. J., additional, Groisman, P. Y., additional, and Easterling, D. R., additional

Published
2012
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11. Sea surface temperature - Observations from geostationary satellites

Author

Bates, J. J and Smith, W. L

Subjects
Oceanography
Abstract

Multispectral image data acquired from the VISSR atmospheric sounder (VAS) on the geostationary GOES satellites were used to estimate sea surface temperatures (SST). A procedure was developed to screen VAS visible and infrared data for cloud-free regions for estimation of SST from the clear infrared radiances. A data set of matches between the VAS radiances and high quality buoy estimates of SST was produced. A linear regression analysis of these matches was performed to generate an empirical algorithm relating the VAS window channel brightness temperatures to the estimates of SST recorded by NOAA fixed environment buoys. Daily maps of SST during Hurricanes Alicia (1983) and Debbie (1982) demonstrated the ability of VAS to monitor air-sea interactions at high temporal and spatial scales.

Published
1985

12. Sea surface temperatures from VAS MSI data

Author

Bates, J. J

Subjects
Oceanography
Abstract

The results of the SST intercomparison workshop series are the first examination of monthly mean SSTs derived from MSI data provided by the VAS instrument on the GOES series satellites. The most significant change in deriving the SST's was the use of the three window channel algorithm in the processing of the July data as opposed to the use of only the two window channel algorithm for the March data. In addition, further satellite/buoy matches indicated that the triple window channel algorithm showed a smaller standard deviation than the two window channel algorithm and was less sensitive to the effects of volcanic aerosol contamination and low level inversion conditions. This is due to the smaller brightness temperature attenuation by aerosols and water vapor at 3.9 microns than at 11.0 and 12.6 microns. Thus, the decision was made to use the best product (i.e., the three window channel aglorithm) for processing the July data.

Published
1985

13. Sea surface temperatures from VAS MSI data

Author

Bates, J. J

Subjects
Oceanography
Abstract

A procedure is developed for estimating sea surface temperatures from multispectral image data acquired from the VISSR atmospheric sounder on the geostationary GOES satellites. Theoretical regression equations for two and three infrared window channels are empirically tuned using clear field of view satellite radiances matched with reports of SST from NOAA fixed environmental buoys. The empirical regression equations are then used to produce daily regional analyses of SST. Monthly mean SST's for the western North Atlantic and the eastern equatorial Pacific during March and July 1982 were produced for use in the SST Intercomparison Workshop Series. Workshop results showed VAS SST's have a scatter of 0.8-1.0 C and a slight warm bias with respect to the other measurements of SST. The VAS SST's show no discernible bias in the region of El Chichon volcanic aerosol cloud.

Published
1984

14. Using thyristors and diodes to improve commutation

Author

Bates, J. J.

Abstract

Machines employing thyristor- and diode-assisted commutation (TAC and DAC) offer numerous advantages over conventional dc machines in applications where commutation is a problem. It is anticipated that the first practical developments will involve adaptations of present systems, followed at a later date by the introduction of more unconventional construction techniques.

Published
1971
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15. Navy Tactical Applications Guide. Volume 3. Section 1. Operational Environmental Satellites. Polar-Orbiting Satellites Geostationary Satellites, Spacecraft - Sensors - Imagery.

Author

BOHAN (WALTER A) CO PARK RIDGE IL, Fett,R W, Bohan,W A, Bates,J J, Tipton,S L, BOHAN (WALTER A) CO PARK RIDGE IL, Fett,R W, Bohan,W A, Bates,J J, and Tipton,S L

Abstract

This volume contains user oriented sections on current operational satellite systems that describe imagery acquisition and distribution, sensor systems, and spectral characteristics. In addition, sample imagery is included for each of the meteorological satellite systems., See also AD-A099 591 and AD-A134 412. Update and expansion of material originally printed in section 1, volume 3.

Published
1983

16. State of the climate in 2011:Special supplement to the Bulletin of the American Meteorological Society

Author

Arndt, D. S., Blunden, J., Willett, K. M., Dolman, A. J., Hall, B. D., Thorne, P. W., Gregg, M. C., Newlin, M. L., Xue, Y., Hu, Z., Kumar, A., Banzon, V., Smith, T. M., Rayner, N. A., Jeffries, M. O., Richter-Menge, J., Overland, J., Bhatt, U., Key, J., Liu, Y., Walsh, J., Wang, M., Fogt, R. L., Scambos, T. A., Wovrosh, A. J., Barreira, S., Sanchez-Lugo, A., Renwick, J. A., Thiaw, W. M., Weaver, S. J., Whitewood, R., Phillips, D., Achberger, C., Ackerman, S. A., Ahmed, Farid H., Albanil-Encarnacion, Adelina, Alfaro, E. J., Alves, L. M., Allan, Rob, Amador, Jorge A., Ambenje, Peter, Antoine, M. D., Antonov, John, Arevalo, Juan, Arndt, Derek S., Ashik, I., Atheru, Zachary, Baccini, Alessandro, Baez, Julian, Banzon, Viva, Baringer, Molly O., Barreira, Sandra, Barriopedro, D. E., Bates, J. J., Becker, Andreas, Behrenfeld, Michael J., Bell, Gerald D., Benedetti, Angela, Bernhard, Germar, Berrisford, Paul, Berry, David I., Beszczynska-Moeller, A., Bhatt, U. S., Bidegain, Mario, Bieniek, P., Birkett, Charon, Bissolli, Peter, Blake, Eric S., Blunden, Jessica, Boudet-Rouco, Dagne, Box, Jason E., Boyer, Tim, Braathen, Geir O., Brackenridge, G. Robert, Brohan, Philip, Bromwich, David H., Brown, Laura, Brown, R., Bruhwiler, Lori, Bulygina, O. N., Burrows, John, Calderon, Blanca, Camargo, Suzana J., Cappellen, John, Carmack, E., Carrasco, Gualberto, Chambers, Don P., Christiansen, Hanne H., Christy, John, Chung, D., Ciais, P., Coehlo, Caio A. S., Colwell, Steve, Comiso, J., Cretaux, Jean-Francois, Crouch, Jake, Cunningham, Stuart A., Jeu, Richard A. M., Demircan, M., Derksen, C., Diamond, Howard J., Dlugokencky, Ed J., Dohan, Kathleen, Dolman, A. Johannes, Dorigo, Wouter A., Drozdov, D. S., Duguay, Claude, Dutton, Ellsworth, Dutton, Geoff S., Elkins, James W., Epstein, H. E., Famiglietti, James S., Fanton D Andon, Odile Hembise, Feely, Richard A., Fekete, Balazs M., Fenimore, Chris, Fernandez-Prieto, D., Fields, Erik, Fioletov, Vitali, Fogt, Ryan L., Folland, Chris, Foster, Michael J., Frajka-Williams, Eleanor, Franz, Bryan A., Frey, Karen, Frith, Stacey H., Frolov, I., Frost, G. V., Ganter, Catherine, Garzoli, Silvia, Gitau, Wilson, Gleason, Karin L., Gobron, Nadine, Goldenberg, Stanley B., Goni, Gustavo, Gonzalez-Garcia, Idelmis, Gonzalez-Rodriguez, Nivaldo, Good, Simon A., Goryl, Philippe, Gottschalck, Jonathan, Gouveia, C. M., Gregg, Margarita C., Griffiths, Georgina M., Grigoryan, Valentina, Grooss, Jens-Uwe, Guard, Chip, Guglielmin, Mauro, Hall, Bradley D., Halpert, Michael S., Heidinger, Andrew K., Heikkila, Anu, Heim, Jr, Hennon, Paula A., Hidalgo, Hugo G., Hilburn, Kyle, Ho, Shu-Peng, Hobbs, Will R., Holgate, Simon, Hook, Simon J., Hovsepyan, Anahit, Hu, Zeng-Zhen, Hugony, Sebastien, Hurst, Dale F., Ingvaldsen, R., Itoh, M., Jaimes, Ena, Jeffries, Martin, Johns, William E., Johnsen, Bjorn, Johnson, Bryan, Johnson, Gregory C., Jones, L. T., Jumaux, Guillaume, Kabidi, Khadija, Kaiser, Johannes W., Kang, Kyun-Kuk, Kanzow, Torsten O., Kao, Hsun-Ying, Keller, Linda M., Kendon, Mike, Kennedy, John J., Kervankiran, Sefer, Khatiwala, Samar, Kholodov, A. L., Khoshkam, M., Kikuchi, T., Kimberlain, Todd B., King, Darren, Knaff, John A., Korshunova, Natalia N., Koskela, Tapani, Kratz, David P., Krishfield, R., Kruger, Andries, Kruk, Michael C., Kumar, Arun, Lagerloef, Gary, Lakkala, Kaisa, Lammers, Richard B., Lander, Mark A., Landsea, Chris W., Lankhorst, Matthias, Lapinel-Pedroso, Braulio, Lazzara, Matthew A., Leduc, Sharon, Lefale, Penehuro, Leon, Gloria, Leon-Lee, Antonia, Leuliette, Eric, Levitus, Syndney, L Heureux, Michelle, Lin, I. I., Liu, Hongxing, Liu, Yanju, Liu, Yi, Lobato-Sanchez, Rene, Locarnini, Ricardo, Loeb, Norman G., Loeng, H., Long, Craig S., Lorrey, Andrew M., Lumpkin, Rick, Myhre, Cathrine Lund, Luo, Jing-Jia, Lyman, John M., Maccallum, Stuart, Macdonald, Alison M., Maddux, Brent C., Manney, Gloria, Marchenko, S. S., Marengo A, Jose, Maritorena, Stephane, Marotzke, Jochem, Marra, John J., Martinez-Sanchez, Odayls, Maslanik, J., Massom, Robert A., Mathis, Jeremy T., Mcbride, Charlotte, Mcclain, Charles R., Mcgrath, Daniel, Mcgree, Simon, Mclaughlin, F., Mcvicar, Tim R., Mears, Carl, Meier, W., Meinen, Christopher S., Menendez, Melisa, Merchant, Chris, Merrifield, Mark A., Miller, Laury, Mitchum, Gary T., Montzka, Stephen A., Moore, Sue, Mora, Natalie P., Morcrette, Jean-Jacques, Mote, Thomas, Muhle, Jens, Mullan, A. Brett, Muller, Rolf, Myhre, Cathrine, Nash, Eric R., Nerem, R. Steven, Newlin, Michele L., Newman, Paul A., Ngari, Arona, Nishino, S., Njau, Lenoard N., Noetzli, Jeannette, Oberman, N. G., Obregon, Andre, Ogallo, Laban, and Oludhe, Christopher

22. Commutation in A.C. machines using sliding contacts and semi-conductor devices

Author

Sridhar, Tiruchendurai Viswanathan and Bates, J. J.

Subjects
621.3
Abstract

A new method of commutator construction, in which a commutator is replaced by two part-commutators and a brush by two part-brushes is described. Each part-brush is narrower than a segment, so that no commutating coil is ever short circuited by the brushes. Instead, an external commutating loop is formed through the two brushes feeding the armature simultaneously and their external inter-connection. Thyristors are introduced in the leads to the part-brushes, and these are switched on by a shaft mounted auxiliary contact device when the brushes are fully in contact with the active segments. Commutation is brought about by the voltage generated by the interpoles, adjusted stronger than in conventional machines. Commutation finishes before a brush leaves an active segment, and the thyristor connected to it switches off. Thus a brush does not have to break a current. At low speeds, when the voltage generated by trig interpoles is low, commutation is brought about by an external commutating voltage supplied by a commutating transformer connected to a 50 c/s source. Alternatively, a motor can be started from a.c., commutation occurring when the supply current falls periodically to zero. The relaxation of the limits on the reactance voltage in such a machine leads to the possibility of obtaining more output from the same frame size. The commutating ability of a machine using this scheme is demonstrated with experimental results.'The problems introduced by the coarse sub-division of the armature, which is necessitated by mechanical considerations, are dealt with briefly. The application of the new method of commutator construction to a.c. series motors for the compensation of the transformer voltage in the commutating coil is considered. The difficulties which limited the success of this application are discussed. An extension of the basic principle, which leads to an a.c. series motor fed by a rotary transformer through thyristors, a and without a sliding contact commutator, is presented. The limitations of the scheme are pointed out.

Published
1966

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