Results 81 to 90 of about 1,323 (182)

The North American Greenhouse Gas Budget: Emissions, Removals, and Integration for CO2, CH4, and N2O (2010–2019): Results From the Second REgional Carbon Cycle Assessment and Processes Study (RECCAP2)

Global Biogeochemical Cycles, Volume 39, Issue 4, April 2025.
Abstract Accurate accounting of greenhouse‐gas (GHG) emissions and removals is central to tracking progress toward climate mitigation and for monitoring potential climate‐change feedbacks. GHG budgeting and reporting can follow either the Intergovernmental Panel on Climate Change methodologies for National Greenhouse Gas Inventory (NGHGI) reporting or ...
Benjamin Poulter, Guillermo Murray‐Tortarolo, Daniel J. Hayes, Philippe Ciais, Robbie M. Andrew, Ana Bastos, Brendan Byrne, David Butman, Josep G. Canadell, Abhishek Chatterjee, Grant Domke, Andrew Feldman, Kelsey Foster, Neha Hunka, Robert B. Jackson, Werner A. Kurz, Ayia Lindquist, Maodian Liu, Ingrid Luijkx, Arnaud Mialon, Anna M. Michalak, John Miller, Wolfgang A. Obermeier, Naiqin Pan, James T. Randerson, Peter A. Raymond, Pierre Regnier, Laure Resplandy, Gerard Rocher‐Ros, Nemesio Rodriguez‐Fernandez, Judith Rosentreter, Julio César Salazar‐Neira, Suzanne E. Tank, Hanqin Tian, Rodrigo Vargas, Yohanna Villalobos, Jonathan A. Wang, Xinyuan Wei, Kimberly P. Wickland, Christopher Williams, Lisamarie Windham‐Myers, Christopher Woodall, Qing Ying, Zhen Zhang   +43 more
wiley   +1 more source

Uncovering Dryland Woody Dynamics Using Optical, Microwave, and Field Data—Prolonged Above-Average Rainfall Paradoxically Contributes to Woody Plant Die-Off in the Western Sahel [PDF]

, 2020
Dryland ecosystems are frequently struck by droughts. Yet, woody vegetation is often able to recover from mortality events once precipitation returns to pre-drought conditions.
Bernardino, Paulo N., Brandt, Martin, De Keersmaecker, Wanda, Fensholt, Rasmus, Horion, Stéphanie, Somers, Ben, Storms, Ilié, Verbesselt, Jan, Wigneron, Jean-pierre   +8 more
core   +1 more source

Airborne S-Band SAR for forest biophysical retrieval in temperate mixed forests of the UK [PDF]

, 2016
Radar backscatter from forest canopies is related to forest cover, canopy structure and aboveground biomass (AGB). The S-band frequency (3.1–3.3 GHz) lies between the longer L-band (1–2 GHz) and the shorter C-band (5–6 GHz) and has been insufficiently ...
Alexander Edwards-Smith, Bernard Spies, Butt, Charles George, Chloe Barnes, Crutchley, France Gerard, Gary Llewellyn, Geoff Burbidge, Heiko Balzter, Jaime Bermejo, James Wheeler, Keith Morrison, Kevin Tansey, Marc Padilla-Parellada, Nick Veck, Olsson, Pedro Rodriguez-Veiga, Ramesh Ningthoujam, Sam Doody, Sarah Johnson, Sun, Sybrand van Beijma, Sykes, Thomas Blythe, Tom Potter, Valentin Louis, Yadvinder Malhi, Zianis   +28 more
core   +3 more sources

A UGV-Based Forest Vegetation Optical Depth Mapping Using GNSS Signals

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
In this study, we conducted an empirical investigation on mobile global navigation satellite system (GNSS) transmissometry (GNSS-T) measurements to explore vegetation optical depth (VOD).
Abesh Ghosh, Md Mehedi Farhad, Dylan Boyd, Mehmet Kurum   +3 more
doaj   +1 more source

Desertification [PDF]

, 2019
IPCC SPECIAL REPORT ON CLIMATE CHANGE AND LAND (SRCCL) Chapter 3: Climate Change and Land: An IPCC special report on climate change, desertification, land degradation, sustainable land management, food security, and greenhouse gas ...
Evans, J., Garcia-Oliva, F., Hussein, I. A. G., Iqbal, M. H., Kimutai, J., Knowles, T., Meza, F., Mirzabaev, A., Nedjroaoui, D., Tena, F., Türkeş, M., Vázquez, R. J., Weltz, M., Wu, J.   +13 more
core  

Investigating Diurnal and Seasonal Cycles of Vegetation Optical Depth Retrieved From GNSS Signals in a Broadleaf Forest

Geophysical Research Letters
Vegetation Optical Depth (VOD) has emerged as a valuable metric to quantify water stress on vegetation's carbon uptake from a remote sensing perspective.
Yitong Yao, Vincent Humphrey, Alexandra G. Konings, Yujie Wang, Yi Yin, Nataniel Holtzman, Jeffrey D. Wood, Yinon Bar‐On, Christian Frankenberg   +8 more
doaj   +1 more source

Synergistic integration of optical and microwave satellite data for crop yield estimation [PDF]

, 2019
Developing accurate models of crop stress, phenology and productivity is of paramount importance, given the increasing need of food. Earth observation (EO) remote sensing data provides a unique source of information to monitor crops in a temporally ...
Adrián Pérez-Suay, Adsuara, Akaike, Alemu, Anna Mateo-Sanchis, Atzberger, Bauer, Bolton, Camps-Valls, Camps-Valls, Chaparro, Chen, Clevers, Doraiswamy, Feldman, Fieuzal, Foley, Fritz, González-Sánchez, Grant, Guan, Gustau Camps-Valls, Hill, Hofmann, Hornbuckle, Huete, Idso, Jackson, Johnson, Jones, Jordi Muñoz-Marí, Jose E. Adsuara, Kastens, Kern, Konings, Konings, Lawrence, Lewis-Beck, Li, Li, Liu, Lobell, Long, López-Lozano, López-Lozano, MacDonald, Maria Piles, Marinković, Mateo-Sagasta, Mkhabela, Mladenova, Momen, O'Neill, Patton, Piles, Prasad, Quarmby, Reed, Ren, Rojo-Álvarez, Ruescas, Sakamoto, Sakamoto, Schnitkey, Shawe-Taylor, Son, Theodoridis, Tian, Tian, Tramontana, Van Wart, Wigneron, Xin, You, Zhang, Zhang, Zhang, Zhang, Zhong   +78 more
core   +2 more sources

A global long-term (2002–2022) C-band vegetation optical depth record retrieved after merging AMSR-E, AMSR2 and WindSat

International Journal of Applied Earth Observations and Geoinformation
Vegetation optical depth (VOD) based on microwave remote sensing has become an essential indicator for monitoring large-scale vegetation conditions. The relatively long-term record of satellite-based passive C-band observations offers the potential for ...
Dongbo Chen, Lei Fan, Jian Peng, Gabrielle De Lannoy, Jean-Pierre Wigneron, Frédéric Frappart, Shengli Tao, Mengjia Wang, Xiaojun Li, Xiangzhuo Liu, Huan Wang, Qiangqiang Yuan, Xiuzhi Chen, Yao Xiao, Philippe Ciais   +14 more
doaj   +1 more source

Microwave Vegetation Index from Multi-Angular Observations and Its Application in Vegetation Properties Retrieval: Theoretical Modelling

Remote Sensing, 2019
Monitoring global vegetation dynamics is of great importance for many environmental applications. The vegetation optical depth (VOD), derived from passive microwave observation, is sensitive to the water content in all aboveground vegetation and could ...
Somayeh Talebiesfandarani, Tianjie Zhao, Jiancheng Shi, Paolo Ferrazzoli, Jean-Pierre Wigneron, Mehdi Zamani, Peejush Pani   +6 more
doaj   +1 more source

1 km L-VOD retrieval from the synergy of Sentinel-1 SAR and SMOS radiometer data for subtropical evergreen vegetation dynamics in China

Ecological Indicators
The L-band vegetation optical depth (L-VOD) with high spatial resolution is essential for monitoring vegetation traits. However, the spatial resolution of current VOD products is relatively coarse (∼ 9–36 km).
Qin Yang, Zhi Huang, Binbin Guo
doaj   +1 more source