Results 131 to 140 of about 72,276 (272)

Upper-atmosphere Aerosols: Properties and Natural Cycles [PDF]

, 1992
The middle atmosphere is rich in its variety of particulate matter, which ranges from meteorite debris, to sulfate aerosols, to polar stratospheric ice clouds. Volcanic eruptions strongly perturb the stratospheric sulfate (Junge) layer.
Turco, Richard P.
core   +1 more source

Hierarchical Testing of a Hybrid Machine Learning‐Physics Global Atmosphere Model

AGU Advances, Volume 7, Issue 2, April 2026.
Abstract Machine learning (ML)‐based models have demonstrated high skill and computational efficiency, often outperforming conventional physics‐based models in weather and subseasonal predictions. While prior studies have assessed their fidelity in capturing synoptic‐scale atmospheric dynamics, their performance across timescales and under out‐of ...
Ziming Chen, L. Ruby Leung, Wenyu Zhou, Jian Lu, Sandro W. Lubis, Ye Liu, Chuan‐Chieh Chang, Bryce E. Harrop, Ya Wang, Mingshi Yang, Gan Zhang, Yun Qian   +11 more
wiley   +1 more source

Modeled and Observed Stratospheric Temperature Changes: Implications for Fingerprint Studies

AGU Advances, Volume 7, Issue 2, April 2026.
Abstract Changes in the vertical structure of atmospheric temperature are an important “fingerprint” of human effects on global climate. These changes are mainly driven by human‐caused increases in atmospheric levels of CO2 ${\text{CO}}_{2}$ and other well‐mixed greenhouse gases.
Benjamin D. Santer, Susan Solomon, David W. J. Thompson, Qiang Fu   +3 more
wiley   +1 more source

Application of Variational Autoencoder‐Based Clustering for Geophysical Fluid Circulations With Small Sample Size

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 2, April 2026.
Abstract The variational autoencoder (VAE), a deep generative model, can extract a good feature representation for clustering from complex data; however, the use of this algorithm in the geophysical fluid circulation has been limited. The sample size for a geophysical phenomenon is generally small because of a large dimensional size, especially for ...
Kunihiro Aoki, Hideyuki Nakano, Nariaki Hirose, Norihisa Usui, Kei Sakamoto, Takahiro Toyoda, Shogo Urakawa, Yuma Kawakami   +7 more
wiley   +1 more source

Trends and Circulation Conditions of Precipitation Over the Sudeten Mountains (Central Europe) in the Years 1961–2020

International Journal of Climatology, Volume 46, Issue 4, 30 March 2026.
Significant trends of precipitation totals are visible at seasonal (negative in spring and positive in winter) and monthly level. The deepening rainfall deficit in April in Western Sudetes threatens the stabilisation of forest ecosystems, the preservation of biodiversity and significantly limits water resources for economic use.
Hanna Ojrzyńska, Marek Błaś, Mieczysław Sobik   +2 more
wiley   +1 more source

Zeeman: A Deep Learning Framework for Regional Atmospheric Chemistry Forecasting

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Atmospheric chemistry encapsulates the emission of various pollutants, the complex chemistry reactions, and the meteorology dominant transport, which form a dynamic system that governs air quality. While deep learning (DL) models have shown promise in capturing intricate patterns for forecasting individual atmospheric components—such as PM2.5 $
Mijie Pang, Jianbing Jin, Arjo Segers, Hai Xiang Lin, Guoqiang Wang, Hong Liao, Wei Han   +6 more
wiley   +1 more source

Snow‐Covered Insights From Above and Below: High‐Frequency Measurement of Nitrogen Dioxide From Space and Ground

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract The Tropospheric Emissions: Monitoring of Pollution (TEMPO) satellite provides hourly air quality measurements over North America. This study evaluates TEMPO NO2 ${\text{NO}}_{2}$ observations over snow‐covered surfaces, highlighting its ability to capture sharp spatial and temporal gradients in NO2 ${\text{NO}}_{2}$ vertical column densities ...
D. Griffin, X. Zhao, C. McLinden, N. Yazdani, C. R. Nowlan, G. González Abad, V. Fioletov, Elisabeth Galarneau, Cris Mihele, Sumi Wren, Yushan Su, Lukas Fehr, Adam Bourassa   +12 more
wiley   +1 more source

Upper‐Level Turbulence in the North American and Asian Summer Monsoon Regions Sampled in Recent Aircraft Campaigns

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Small‐scale turbulence above 10 km is investigated using observations from two recent airborne field campaigns: the Asian Summer Monsoon Chemical & Climate Impact Project (ACCLIP) and the Dynamics and Chemistry of the Summer Stratosphere (DCOTSS). Turbulence is enhanced by factors of 2–24 inside clouds, within 100 km of active deep convection,
Rachel Atlas, Rei Ueyama, Soo‐Hyun Kim, Paul Bui, Jonathan Dean‐Day, Yaowei Li, John Dykema, Frank Keutsch, Bernadett Weinzierl, Maximilian Dollner, Aurélien Podglajen   +10 more
wiley   +1 more source

Stratospheric Aerosol Particle Size Explains Divergent Limb and Solar Occultation Measurements After the Hunga Eruption

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract The 2022 Hunga eruption significantly perturbed the stratosphere by injecting substantial water vapor and SO2 ${\text{SO}}_{2}$, drastically changing the Aerosol Optical Depth (AOD) and particle size. Post‐eruption, satellite limb‐scattering retrievals of aerosol extinction from Ozone Mapping and Profiler Suite Limb Profiler (OMPS‐LP) and ...
Cara Remai, Daniel Zawada, Adam Bourassa, Kimberlee Dubé, Alexandre Baron, Kate Smith, Landon Rieger, Douglas Degenstein   +7 more
wiley   +1 more source

Assessing Subseasonal Predictions of Stratosphere‐Troposphere Coupling of GraphCast

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 6, 28 March 2026.
Abstract The rapid development of artificial intelligence weather forecasting models (AIWFMs) has revolutionized weather prediction. GraphCast, a leading AIWFM, outperforms state‐of‐the‐art physics‐based numerical models at the surface and in the lower troposphere.
Zheng Wu
wiley   +1 more source