Results 111 to 120 of about 15,592 (230)

Informing Robust Functional Relationship Benchmarks: An Evaluation of the Temperature Sensitivity of Ecosystem Respiration Across the Arctic‐Boreal Region

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 5, May 2026.
Abstract During land model development, simulated carbon dynamics are often benchmarked against observational data sets to evaluate model performance. Functional relationship benchmarks are the relationship between a driving variable (e.g., temperature) and a response variable (e.g., ecosystem respiration) and are a promising tool for assessing model ...
Jeralyn Poe, Deborah Huntzinger, William J. Riley, Jon M. Wells, Edward A. G. Schuur, Christopher Schwalm, Logan T. Berner, Heidi Rodenhizer, Nicholas J. Bouskill, Victor Brovkin, Eleanor J. Burke, Philippe Ciais, Goran Georgievski, Adrian Gustafson, David M. Lawrence, Andrew H. MacDougall, Zelalem A. Mekonnen, Joe R. Melton, Gesa Meyer, Alexandra Pongracz, Chunjing Qiu, Benjamin N. Sulman, Sean C. Swenson, Jing Tao, David Wårlind, Yi Xi, Fengming Yuan, Qing Zhu, Christina Schädel   +28 more
wiley   +1 more source

Global Diurnal Variation Characteristics of Aerosol Optical Depth From 32 Years of AERONET Observations

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Aerosols are ubiquitous microscopic particles in the atmosphere, and their diurnal variation characteristics reflect short‐term atmospheric changes that are crucial for climate monitoring and prediction. However, satellite, ground‐based, and reanalysis systems cannot simultaneously provide observational authenticity together with full temporal–
Yujia Cao, Cheng Chen, Donghui Li, Siyao Zhai, Yan Wang, Zhihui Wang, Ke Xiao, Haixiao Yu   +7 more
wiley   +1 more source

Intraseasonal Variability in MERRA Energy Fluxes over the Tropical Oceans

Journal of Climate, 2012
Abstract This paper investigates intraseasonal variability as represented by the recent NASA Global Modeling and Assimilation Office (GMAO) reanalysis, the Modern-Era Retrospective analysis for Research and Applications (MERRA). The authors examine the behavior of heat, moisture, and radiative fluxes emphasizing their contribution to ...
Jason B. Roberts, Franklin R. Robertson
openaire   +1 more source

Observed Increase in Tropical Vegetation Droughts Over the Past Three Decades

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Tropical terrestrial vegetation is critical to the global carbon cycle but faces escalating drought threats. Traditional assessments using fixed climate thresholds often ignore actual physiological responses and non‐moisture disturbances.
Shuai Cheng, Xianfeng Liu, Mingzhu Cao, Jianyu Fu, Haiyang Qian, Xiaolong Pan, Liyan Yang, Yu Feng   +7 more
wiley   +1 more source

Analysis of satellite-derived Arctic tropospheric BrO columns in conjunction with aircraft measurements during ARCTAS and ARCPAC [PDF]

, 2012
We derive tropospheric column BrO during the ARCTAS and ARCPAC field campaigns in spring 2008 using retrievals of total column BrO from the satellite UV nadir sensors OMI and GOME-2 using a radiative transfer model and stratospheric column BrO from a ...
Canty, T, Chance, K, Choi, S, Curry, J, da Silva, Arlindo, Dibb, Jack E., Diskin, Glenn, Huey, L Gregory, Joiner, J, Kinnison, D, Kurosu, T P, Levelt, P F, Liao, J, Neuman, J A, Nowak, J, Richter, A, Ryerson, Thomas B, Salawitch, R J, Tilmes, S, Wang, Yuhang, Weinheimer, Andrew, Zeng, T   +21 more
core   +1 more source

Accuracy assessment of MERRA MERRA-2 temperature and humidity profiles over the tropical ocean using AEROSE observations and ECMWF analysis

, 2018
Poster presented at the 19th GHRSST science meeting (XIX), Darmstadt, Germany, June 4 - 8, 2018.
openaire   +1 more source

Observed and Modeled Changes in Boundary‐Layer and Surface‐Level Actinic Flux Due To Wildfire Smoke Plumes in the California Central Valley in Summer 2018

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 8, 28 April 2026.
Abstract Wildfire smoke is increasingly degrading U.S. air quality via the emission and transport of pollutants. Smoke's direct role as a pollutant is well‐documented; however, smoke also affects pollutant concentration indirectly by changing the shortwave actinic flux necessary for photochemical reactions.
K. A. Corwin, S. R. Hall, K. Ullmann, C. A. Corr, J. R. Pierce, E. V. Fischer   +5 more
wiley   +1 more source

Satellite‐Based Detection of Methane Emissions From Permafrost Peatland Warming

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Column‐averaged methane (XCH4) observations spanning 2018–2023 by the Tropospheric Monitoring Instrument (TROPOMI) on the Sentinel‐5 Precursor satellite are assessed for evidence of methane (CH4) emissions from permafrost regions. Bi‐monthly TROPOMI XCH4 anomaly maps and soil temperature (Tsoil) anomaly maps from reanalysis data are generated ...
Ray Nassar, Qindii Shafi, Joseph Mendonca, Sabour Baray, Peter Morse, Oliver Schneising, Michael Buchwitz, Ama Gamage   +7 more
wiley   +1 more source

Understanding the Evolution of Global Atmospheric Rivers With a Vapor Kinetic Energy Framework

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Atmospheric rivers (ARs) often cause damaging winds, rainfall, and floods. However, the physical mechanisms governing their evolution remain poorly understood. To close this gap, we perform a global Vapor Kinetic Energy (VKE) budget analysis. Using two formulations of VKE, we show that ARs are governed by similar mechanisms regardless of ocean
Aidi Zhang, Da Yang, Hing Ong, Zhihong Tan   +3 more
wiley   +1 more source

Atmospheric temperature tides in the tropical upper troposphere and lower stratosphere [PDF]

, 2012
Atmospheric thermal tides are global-scale waves with periods that are harmonics of a solar day, mainly excited by diurnally varying diabatic heating in the troposphere and the stratosphere.
Sakazaki, Takatoshi
core   +1 more source