Results 91 to 100 of about 877 (209)

Assessing Consistency in Fuel Consumed Between Activity‐Based Wildfire Emission Estimates

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Wildfire emission inventories exhibit large variability that complicates assessments of smoke impacts. Here we compare fuel consumed (in mass per burned area units) from multiple burn area‐based and energy‐based approaches for fires in the western US during 2020. Average fuel consumed can vary by up to factors of 2–16 between approaches across
P. E. Saide, Y. Wu, M. Arnold, L. H. Thapa, A. Soja, E. Gargulinski, F. Li, C. Wiedinmyer, L. K. Emmons, W. Tang, A. L. Westerling, Q. Xu, E. M. Ordway, N. Queally, L. Kueppers   +14 more
wiley   +1 more source

Self‐Lofting Drives Tropospheric and Stratospheric Transport of Australian Wildfire Smoke to Antarctic Ice

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract The 2019–2020 Australian New Year (ANY) wildfires injected vast amounts of aerosols and trace gases into the atmosphere. Previous studies focused on pyrocumulonimbus (pyroCb) activities that inject smoke directly into the upper troposphere. Our study shows that extensive aerosol plumes emitted into the lower troposphere during ANY wildfires ...
Jiawei Huang, Yifeng Peng, Yao Guo, Kai Qie, Xuemei Wang, Nan Ma, Min Shao, Pengfei Yu   +7 more
wiley   +1 more source

Anomalous Opaque Clouds Revealed by Collocated MODIS and CALIOP Retrievals

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract This paper examines discrepancies between cloud optical thickness (COT) retrievals from the Moderate Resolution Imaging Spectroradiometer (MODIS) cloud product, and cloud opacity measurements from the Cloud‐Aerosol Lidar with Orthogonal Polarization (CALIOP) lidar.
Adeleke Segun Ademakinwa, Chamara Rajakapshe, Zhibo Zhang   +2 more
wiley   +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

Below‐Cloud CCN Concentrations Provide Better Constraints on the Twomey Effect Than Aerosol Optical Properties

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract The primary uncertainty in anthropogenic climate forcing arises from a limited understanding of aerosol effects on cloud albedo, which in combination with other effects, is termed the radiative forcing from aerosol‐cloud interactions (RFaci).
Lan Gao, Jens Redemann, Emily D. Lenhardt, Benting Chen, Feng Xu, Richard Ferrare, Johnathan Hair, Amin Nehrir, Chris Hostetler, Taylor Shingler, Marta Fenn, Brian Cairns, Armin Sorooshian, Ian Chang   +13 more
wiley   +1 more source

Weak Influence of Surface Pressure on Arctic Radiative States From Winter to Spring Over the Sea‐Ice

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract The Arctic sea‐ice surface energy budget is characterized by two radiative states driven by the presence or absence of opaque clouds that warm the surface. Ground‐based observations from the 1998 SHEBA campaign collected over sea‐ice suggested that the two radiative states correspond to distinct surface pressure values.
Jean Lac, Hélène Chepfer, Matthew D. Shupe   +2 more
wiley   +1 more source

Improved Simulation of Seasonal Variation of Arctic Low Clouds by Resolving Subgrid Open Water Fluxes to the Atmosphere in CESM2

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Open water in sea ice significantly influences Arctic low‐cloud formation. However, current global climate models (GCMs), constrained by grid‐scale coupling between the atmosphere and surface components, cannot resolve subgrid heat fluxes and clouds contrasts between open water and sea ice, contributing to biases in Arctic low‐cloud ...
Qihan Ma, Yilun Han, Ruibo Lei, Jiping Liu, Yongqiang Yu, Mirong Song, Shiming Xu, Guang J. Zhang, Renhe Zhang, Yong Wang   +9 more
wiley   +1 more source

Research on the Correction Algorithm for Ozone Inversion in Differential Absorption Lidar

Photonics
Due to the complex and variable nature of the atmospheric conditions, traditional multi-wavelength differential absorption lidar (DIAL) methods often suffer from significant errors when inverting ozone concentrations.
Leyong Li, Chenbo Xie, Jie Ji, Kunming Xing   +3 more
doaj   +1 more source

The Life Cycle of a Stratospheric Smoke Plume as Seen From EarthCARE—Tracking a Plume From Canada to Europe

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract At the end of May 2025, extremely strong wildfires in Canada produced several pyrocumulonimbus clouds lifting the smoke particles up to the lower stratosphere. Stratospheric aerosol optical depths of more than 2.5 were observed by the ATmospheric LiDAR (ATLID) onboard of the Earth Cloud, Aerosol and Radiation Explorer (EarthCARE) satellite ...
Moritz Haarig, Holger Baars, Leonard König, David P. Donovan, Albert Ansmann, Sergey Khaykin, Romain Ceolato, Benedikt Gast, Crisofer Jimenez, Athena A. Floutsi, Robin J. Hogan, Annabel Chantry, Fabien Marnas, Johanna Roschke, Gerd‐Jan van Zadelhoff, Ulla Wandinger   +15 more
wiley   +1 more source

Strong Ventilation Drives the Aerosol Pollution Receptor Center and Its Interannual Variability in Central China's Twain‐Hu Basin

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract This study investigates the unique winter phenomenon in central China's Twain‐Hu Basin where high aerosol optical depth (AOD) centers coincide with a regional near‐surface wind speed maximum. Based on multi‐decadal reanalysis data sets, satellite retrievals, ground observations, and FLEXPART‐WRF simulations, we demonstrate that strong ...
Yongqing Bai, Ling Zhang, Yujie Jiang, Tianliang Zhao, Lijuan Shen, Kai Meng, Jie Xiong, Xiaoyun Sun, Weiyang Hu, Xiefei Zhi   +9 more
wiley   +1 more source