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1. Intergovernmental Panel on Climate Change (IPCC) Tier 1 forest biomass estimates from Earth Observation

Author

Hunka, Neha, Duncanson, Laura, Armston, John, Dubayah, Ralph, Healey, Sean P., Santoro, Maurizio, May, Paul, Araza, Arnan, Bourgoin, Clement, Montesano, Paul M., Neigh, Christopher S. R., Grantham, Hedley, Potapov, Peter, Turubanova, Svetlana, Tyukavina, Alexandra, Richter, Jessica, Harris, Nancy, Urbazaev, Mikhail, Pascual, Adrián, Suarez, Daniela Requena, Herold, Martin, Poulter, Benjamin, Wilson, Sylvia N., Grassi, Giacomo, Federici, Sandro, Sanz, Maria J., and Melo, Joana

Published
2024
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5. Detecting vulnerability of humid tropical forests to multiple stressors

Author

Saatchi, Sassan, Longo, Marcos, Xu, Liang, Yang, Yan, Abe, Hitofumi, André, Michel, Aukema, Juliann E, Carvalhais, Nuno, Cadillo-Quiroz, Hinsby, Cerbu, Gillian Ann, Chernela, Janet M, Covey, Kristofer, Sánchez-Clavijo, Lina María, Cubillos, Isai V, Davies, Stuart J, De Sy, Veronique, De Vleeschouwer, Francois, Duque, Alvaro, Durieux, Alice Marie Sybille, De Avila Fernandes, Kátia, Fernandez, Luis E, Gammino, Victoria, Garrity, Dennis P, Gibbs, David A, Gibbon, Lucy, Gowae, Gae Yansom, Hansen, Matthew, Harris, Nancy Lee, Healey, Sean P, Hilton, Robert G, Johnson, Christine May, Kankeu, Richard Sufo, Laporte-Goetz, Nadine Therese, Lee, Hyongki, Lovejoy, Thomas, Lowman, Margaret, Lumbuenamo, Raymond, Malhi, Yadvinder, Martinez, Jean-Michel M Albert, Nobre, Carlos, Pellegrini, Adam, Radachowsky, Jeremy, Román, Francisco, Russell, Diane, Sheil, Douglas, Smith, Thomas B, Spencer, Robert GM, Stolle, Fred, Tata, Hesti Lestari, del Castillo Torres, Dennis, Tshimanga, Raphael Muamba, Vargas, Rodrigo, Venter, Michelle, West, Joshua, Widayati, Atiek, Wilson, Sylvia N, Brumby, Steven, and Elmore, Aurora C

Subjects
Life on Land, Climate Action
Abstract

Humid tropical forests play a dominant role in the functioning of Earth but are under increasing threat from changes in land use and climate. How forest vulnerability varies across space and time and what level of stress forests can tolerate before facing a tipping point are poorly understood. Here, we develop a tropical forest vulnerability index (TFVI) to detect and evaluate the vulnerability of global tropical forests to threats across space and time. We show that climate change together with land-use change have slowed the recovery rate of forest carbon cycling. Temporal autocorrelation, as an indicator of this slow recovery, increases substantially for above-ground biomass, gross primary production, and evapotranspiration when climate stress reaches a critical level. Forests in the Americas exhibit extensive vulnerability to these stressors, while in Africa, forests show relative resilience to climate, and in Asia reveal more vulnerability to land use and fragmentation. TFVI can systematically track the response of tropical forests to multiple stressors and provide early-warning signals for regions undergoing critical transitions.

Published
2021

8. Towards a roadmap for space-based observations of the land sector for the UNFCCC global stocktake

Author

Ochiai, Osamu, Poulter, Benjamin, Seifert, Frank Martin, Ward, Stephen, Jarvis, Ian, Whitcraft, Alyssa, Sahajpal, Ritvik, Gilliams, Sven, Herold, Martin, Carter, Sarah, Duncanson, Laura Innice, Kay, Heather, Lucas, Richard, Wilson, Sylvia N., Melo, Joana, Post, Joanna, Briggs, Stephen, Quegan, Shaun, Dowell, Mark, Cescatti, Alessandro, Crisp, David, Saatchi, Sassan, Tadono, Takeo, Steventon, Matt, and Rosenqvist, Ake

Published
2023
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14. Intergovernmental Panel on Climate Change (IPCC) Tier 1 forest biomass estimates from Earth Observation

Author

Hunka, Neha, primary, Duncanson, Laura, additional, Armston, John, additional, Dubayah, Ralph, additional, Healey, Sean P, additional, Santoro, Maurizio, additional, May, Paul, additional, Araza, Arnan, additional, Bourgoin, Clement, additional, Montesano, Paul, additional, Neigh, Christopher S R, additional, Grantham, Hedley, additional, Potapov, Peter, additional, Turubanova, Svetlana, additional, Tyukavina, Alexandra, additional, Richter, Jessica, additional, Harris, Nancy, additional, Urbazaev, Mikhail, additional, Pascual, Adrian, additional, Suarez, Daniela Requena, additional, Herold, Martin, additional, Poulter, Benjamin, additional, Wilson, Sylvia N, additional, Grassi, Giacomo, additional, Federici, Sandro, additional, Sanchez, Maria J Sanz, additional, and Melo, Joana, additional

Published
2024
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22. On the NASA GEDI and ESA CCI biomass maps: Aligning for uptake in the UNFCCC global stocktake

Author

Hunka, Neha, primary, Santoro, Maurizio, additional, Armston, John, additional, Dubayah, Ralph, additional, McRoberts, Ronald, additional, Næsset, Erik, additional, Quegan, Shaun, additional, Urbazaev, Mikhail, additional, Pascual, Adrián, additional, May, Paul B, additional, Minor, David, additional, Leitold, Veronika, additional, Basak, Paromita, additional, Liang, Mengyu, additional, Melo, Joana, additional, Herold, Martin, additional, Malága, Natalia, additional, Wilson, Sylvia, additional, Montesinos, Patricia Durán, additional, Arana, Alexs, additional, De La Cruz Paiva, Ricardo Ernesto, additional, Ferrand, Jeremy, additional, Keoka, Somphavy, additional, Guerra-Hernandez, Juan, additional, and Duncanson, Laura, additional

Published
2023
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28. Estimating aboveground biomass density using hybrid statistical inference with GEDI lidar data and Paraguay’s national forest inventory

Author

Bullock, Eric L, primary, Healey, Sean P, additional, Yang, Zhiqiang, additional, Acosta, Regino, additional, Villalba, Hermelinda, additional, Insfrán, Katherin Patricia, additional, Melo, Joana B, additional, Wilson, Sylvia, additional, Duncanson, Laura, additional, Næsset, Erik, additional, Armston, John, additional, Saarela, Svetlana, additional, Ståhl, Göran, additional, Patterson, Paul L, additional, and Dubayah, Ralph, additional

Published
2023
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32. On the NASA GEDI and ESA CCI biomass maps : aligning for uptake in the UNFCCC global stocktake

Author

Hunka, Neha, Santoro, Maurizio, Armston, John, Dubayah, Ralph, McRoberts, Ronald E., Næsset, Erik, Quegan, Shaun, Urbazaev, Mikhail, Pascual, Adrián, May, Paul B., Minor, David, Leitold, Veronika, Basak, Paromita, Liang, Mengyu, Melo, Joana, Herold, Martin, Málaga, Natalia, Wilson, Sylvia, Durán Montesinos, Patricia, Arana, Alexs, Ernesto De La Cruz Paiva, Ricardo, Ferrand, Jeremy, Keoka, Somphavy, Guerra-Hernández, Juan, Duncanson, Laura, Hunka, Neha, Santoro, Maurizio, Armston, John, Dubayah, Ralph, McRoberts, Ronald E., Næsset, Erik, Quegan, Shaun, Urbazaev, Mikhail, Pascual, Adrián, May, Paul B., Minor, David, Leitold, Veronika, Basak, Paromita, Liang, Mengyu, Melo, Joana, Herold, Martin, Málaga, Natalia, Wilson, Sylvia, Durán Montesinos, Patricia, Arana, Alexs, Ernesto De La Cruz Paiva, Ricardo, Ferrand, Jeremy, Keoka, Somphavy, Guerra-Hernández, Juan, and Duncanson, Laura

Abstract

Earth Observation data are uniquely positioned to estimate forest aboveground biomass density (AGBD) in accordance with the United Nations Framework Convention on Climate Change (UNFCCC) principles of ‘transparency, accuracy, completeness, consistency and comparability’. However, the use of space-based AGBD maps for national-level reporting to the UNFCCC is nearly non-existent as of 2023, the end of the first global stocktake (GST). We conduct an evidence-based comparison of AGBD estimates from the NASA Global Ecosystem Dynamics Investigation and ESA Climate Change Initiative, describing differences between the products and National Forest Inventories (NFIs), and suggesting how science teams must align efforts to inform the next GST. Between the products, in the tropics, the largest differences in estimated AGBD are primarily in the Congolese lowlands and east/southeast Asia. Where NFI data were acquired (Peru, Mexico, Lao PDR and 30 regions of Spain), both products show strong correlation to NFI-estimated AGBD, with no systematic deviations. The AGBD-richest stratum of these, the Peruvian Amazon, is accurately estimated in both. These results are remarkably promising, and to support the operational use of AGB map products for policy reporting, we describe targeted ways to align products with Intergovernmental Panel on Climate Change (IPCC) guidelines. We recommend moving towards consistent statistical terminology, and aligning on a rigorous framework for uncertainty estimation, supported by the provision of open-science codes for large-area assessments that comprehensively report uncertainty. Further, we suggest the provision of objective and open-source guidance to integrate NFIs with multiple AGBD products, aiming to enhance the precision of national estimates. Finally, we describe and encourage the release of user-friendly product documentation, with tools that produce AGBD estimates directly applicable to the IPCC guideline methodologies. With these steps, spac

Published
2023

33. Leveraging the Power of SAR Observations for Forest Monitoring Systems

Author

Herndon, Kelsey E, Flores-Anderson, Africa, Cherrington, Emil, Thapa, Rajesh, Kucera, Leah, Saah, David, Quyen, Nguyen, Muench, Rebekke, Rushi, Begum, Adams, Emily, Oduor, Phoebe, Limaye, Ashutosh, Mamane, Bako, Vadrevu, Krishna, Wilson, Sylvia, Gottlieb, Sasha, and Delgado, Francisco

Subjects
Earth Resources And Remote Sensing
Abstract

Earth observations from Synthetic Aperture Radar (SAR) can provide unique information related to forest structure and condition. Despite the many advantages of SAR, particularly where clouds impede optical observations, a knowledge gap has prevented the applied remote sensing community from harnessing its full potential. Here, we discuss the results of a collaboration between SERVIR, a joint program between NASA and the U.S. Agency for International Development (USAID), and SilvaCarbon, the United States' contribution to the Global Forest Observation Initiative, to build global capacity in using SAR for forest monitoring and biomass estimation. This includes primarily the creation of 1) The SAR Handbook: Comprehensive Methodologies for Forest Monitoring and Biomass Estimation, 2) a series of international hands-on trainings and training materials, 3) quick-reference guides illustrating SAR concepts, and 4) animated videos explaining how SAR works. The SERVIR-Global community joined efforts to develop a hands-on guide to support decision-makers in the forestry community to leverage the power of SAR technology to better protect and manage forest resources. We worked with world-renowned SAR experts to provide targeted trainings and develop the SAR Handbook. This handbook consists of approachable theoretical background and applied content that contributes to filling the knowledge gap in the applied use of SAR technology for forestry applications. We hope that forest managers and remote sensing specialists will use these materials to benefit from currently available SAR datasets, as well as prepare for future SAR missions, such as NISAR and BIOMASS. Since its release on April 11, 2019, the SAR Handbook has been accessed more than 100,000 times in less than a month, demonstrating the remote sensing community's urgent need and interest to learn and use SAR.

Published
2019

34. Design Thinking for the Applied Sciences: Developing a Novel Approach to Encourage the Use of Synthetic Aperture Radar (SAR) and Open Source Tools for Forest Monitoring

Author

Kucera, Leah M, Herndon, Kelsey E, Flores Cordova, Africa Ixmucane, Cherrington, Emil A, Poplar, Melvin, III, Thapa, Rajesh Bahadur, and Wilson, Sylvia

Subjects
Social And Information Sciences (General), Earth Resources And Remote Sensing
Abstract

Earth observations from Synthetic Aperture Radar, or SAR, have yet to be fully leveraged for forest monitoring applications. While SAR sensors are uniquely able to capture components of forest structure over optical imagery, especially in cloud-heavy regions, there is a shortage of freely-available applied training materials and related case studies. With the wealth of available datasets from Sentinel-1 and other missions, such as ALOS-Palsar open historical archive, and in preparation for upcoming opendata policy SAR missions (e.g. NISAR and BIOMASS), the applied forestry community would benefit from increased access to relevant, understandable SAR training materials. This work documents lessons learned and best practices for creating EO capacity building/training materials gleaned from the SAR Handbook project. Strategies for increasing legibility for both print and online applications, illustration and editing guidelines for original and modified figures, and the development of quick-reference guides will be shared. Additionally, the conception and use of companion “explainer” videos, using cartoon characters and humor to outline relevant SAR concepts will be explored. Preliminary results indicate the SAR Handbook and supplemental project materials are already having an impact in training sessions. Increased uptake of SAR technologies in SERVIR Hub regions, where Hubs are leading follow-on SAR trainings, has also been noted. In addition, a review of download statistics from the SERVIR global website indicates widespread worldwide access. We conclude similar holistic approaches integrating design concepts into future content development would help increase uptake of EO applications by the earth science community.

Published
2019

36. Contributors

Author

Abbott, Tom E.F., Absalom, Anthony R., Adelmann, Dieter, Allen, Paul D., Andreatta, Brock, Artime, Carlos A., Asnake, Betelehem, Azimaraghi, Omid, Barbeito, Atilio, Bartz, Raquel R., Berde, Charles B., Berger, Miles, Berra, Lorenzo, Bittner, Edward A., Braddock, Clarence, III, Breyer, Kristine E.W., Bruins, Benjamin B., Brull, Richard, Brull, Sorin J., Buck, David Winthrop, Burkhardt, Daniel H., III, Camporesi, Enrico M., Campos, Javier, Castro de Oliveira, Bruna M., Cereda, Maurizio, Chang, Joyce, Chang, Marvin, Chen, Catherine L., Cherry, Anne D., Chitilian, Hovig V., Choukalas, Christopher, Chung, Mabel, Cobert, Julien, Cohen, Neal H., Colquhoun, Douglas A., Cotter, Sarah, Cudemus, Gaston, Cumpstey, Andrew F., Dabski, Matthew, Dalia, Adam A., Davidson, Andrew, Davis, Nicholas A., de Boer, Hans D., Deiner, Stacie, Drobish, Julie K., Drummond, John C., Dudley, Matthew T., Eckmann, David M., Edwards, Mark R., Ehie, Odinakachukwu, Eikermann, Matthias, Eleveld, Douglas J., Elkassabany, Nabil M., Engelhard, Kristin, Eriksson, Lars I., Evered, Lisbeth, Evgenov, Oleg V., Fagerlund, Malin Jonsson, Fang, Zhuang T., Fassbender, Philipp, Ferschl, Marla B., Finlayson, Emily, Fitzsimons, Michael, Fleisher, Lee A., Forman, Stuart A., Franks, Nicholas P., Fuchs-Buder, Thomas, Fukuda, Kazuhiko, Gabrielli, Elizabeth Mahanna, Gainsburg, Daniel, Galvagno, Samuel M., Jr, Gaskell, Amy, Gebauer, Sarah, Gerlach, Rebecca M., Gianni, Stefano, Goren, Or, Gray, Andrew T., Grocott, Michael P.W., Gropper, Michael A., Hagberg, Carin A., Haylock-Loor, Carolina, Hellman, Judith, Hemmings, Hugh C., Jr, Hendel, Simon Andrew, Hewson, David W., Hight, Darren, Horvath, Ryan, Hurley, Robert W., Hyman, Jaime B., Irefin, Samuel A., Ishizawa, Yumiko, Jackson, Alexander I.R., Jiang, Yandong, Johnson, Daniel W., Johnson, Ken B., Johnson, Rebecca L., Johnson-Akeju, Oluwaseun, Jooste, Edmund H., Kaczka, David W., Kaur, Gunisha, Kessler, Jens, Keyes, Mary, Khan, Fauzia, Kheterpal, Sachin, Kilbaugh, Todd J., Kim, Tae Kyun, Ko, Nerissa U., Kopf, Andreas, Kopp, Sandra L., Kronish, Kate, Kumar, Avinash B., Lam, Arthur M., Lancman, Benn Morrie, Lane-Fall, Meghan Brooks, Law, Tyler, Legrand, Matthieu, Lemkuil, Brian P., Leslie, Kate, Liang, Yafen, Liew, Elaine Chiewlin, Lilaonitkul, Maytinee, Lipnick, Michael S., Lirk, Philipp, Lisco, Steven J., Liu, Kathleen D., Liu, Linda L., Lucero, Jennifer, Macfarlane, Alan J.R., Mahajan, Aman, Mahmood, Feroze, Malhotra, Gaurav, Malhotra, Vinod, Mark, Jonathan, Martinez, Rebecca H., Martyn, J.A. Jeevendra, Mashour, George A., McCarthy, Grace C., Meistelman, Claude, Vidal Melo, Marcos F., Michelow, Marilyn, Moon, Richard E., Mulvoy, William P., Neelankavil, Jacques Prince, Neligan, Patrick J., Nemes, Reka, Njoku, Dolores B., Nozari, Ala, Obara, Shinju, Sung-jin Ok, Michale, Oprea, Adriana D., Orser, Beverley A., Palaniappa, Nandini C., Pamnani, Anup, Panigrahi, Anil K., Parotto, Matteo, Pasternak, L. Reuven, Patel, Anil, Patel, Piyush M., Pearce, Robert A., Perouansky, Misha, Pessah, Isaac N., Philip, Beverly, Pino, Richard M., Prakash, Arun, Pryor, Kane O., Reekers, Marije, Renew, J. Ross, Richards, Justin E., Robitaille, Mark, Rodriguez-Diaz, Cesar, Rollins, Mark D., Ross, Patrick A., Roth, Steven, Rubertsson, Sten, Sabouri, A. Sassan, Sarwar, Muhammad F., Schenning, Katie J., Schnaubelt, Elizabeth R., Schroeder, Becky, Searles, Bruce E., Sendagire, Cornelius, Seubert, Christoph N., Shafer, Steven L., Shah, Ann Cai, Shah, Nirav J., Shalabi, Ahmed, Sharma, Anshuman, Sharpe, Emily E., Shelton, Kenneth T., Shore-Lesserson, Linda, Sikorski, Robert A., Sitsen, Elske, Sjöberg, Folke, Sleigh, Jamie, Slinger, Peter, Sonny, Abraham, Soriano, Sulpicio G., Steadman, Randolph H., Stein, Christoph, Steurer, Marc P., Streckenbach, Scott, Struys, Michel M.R.F., Sun, Lena S., Suresh, Santhanam, Sviggum, Hans P., Sweitzer, Bobbie Jean, Takeda, Shinhiro, Tameze, Yasmine, Thilen, Stephan R., Tran, Tina, Tsui, Ban, Van Norman, Gail, Vaporidi, Katerina, Varughese, Anna Mary, Vazquez, Rafael, Vutskits, Laszlo, Vuyk, Jaap, Weston, Stephen D., Whitlock, Elizabeth L., Wijeysundera, Duminda N., Wilson, Sylvia H., Wray, Christopher, Wu, Christopher L., Xia, Victor W., Yemul Golhar, Shweta Rahul, Yen, Albert, Yu, Xiaobing, Zhao, Jing, and Zhou, Jie

Published
2025
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46. USPTO Official Filing Receipts Erroneously Omit Foreign Filing Licenses

Author

Wilson, Sylvia

Subjects
United States. Patent and Trademark Office -- Powers and duties, Patent licenses -- Laws, regulations and rules, Government regulation, Business, international
Abstract

Check those United States Patent and Trademark Office (USPTO) filing receipts. You filed a patent application and received your official filing receipt from the USPTO. Check. You see that inventor [...]

Published
2022

49. How to Address a Global Problem with Earth Observations? Developing Best Practices to Monitor Forests Around the World

Author

Flores Cordova, Africa I, Cherrington, Emil A, Vadrevu, Krishna, Thapa, Rajesh Bahadur, Odour, Phoebe, Mehmood, Hamid, Quyen, Nguyen Hanh, Saah, David, Yero, Kadidia, Mamane, Bako, Bartel, Paul, Limaye, Ashutosh S, French, Raymond, Irwin, Daniel, Wilson, Sylvia, Gottielb, Sasha, and Notman, Evan

Subjects
Earth Resources And Remote Sensing
Abstract

Forests represent a key natural resource, for which degradation or disturbance is directly associated to economic implications, particularly in the context of the United Nations program REDD+ in supporting national policies to fight illegal deforestation. SERVIR, a joint NASA-USAID initiative that brings Earth observations (EO) for improved environmental decision making in developing countries, works with established institutions, called SERVIR hubs, in four regions around the world. SERVIR is partnering with global programs with great experience in providing best practices in forest monitoring systems, such as SilvaCarbon and the Global Forest Observation Initiative (GFOI), to develop a capacity building plan that prioritizes user needs. Representatives from the SERVIR global network met in February 2017 with experts in the field of Synthetic Aperture Radar (SAR) for forest applications to envisage this capacity building plan that aims to leverage the state-of-the-art knowledge on remote sensing to enhance forest monitoring for user agencies in SERVIR regions.

Published
2017

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