Results 51 to 60 of about 849 (154)

Madden‐Julian Oscillation and Atmospheric Rivers: New Insights on Water Source and Transport for Extreme Rainfall Over the Western U.S.

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 6, 28 March 2026.
Abstract Atmospheric rivers (ARs) were first documented by Zhu and Newell for transporting global water vapor. ARs contribute to extreme rainfall, especially over the Western United States. The primary water vapor source of ARs is from the tropical ocean, where convective systems bring the moist flux upward from the surface to the troposphere. Previous
Chad A. Small, Shuyi S. Chen, Brandon W. Kerns   +2 more
wiley   +1 more source

Indo–Western Pacific Tropical Heating Anomalies Regulate the Cross‐Pacific Atmospheric River Highways During Boreal Summer

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Atmospheric rivers (ARs) constitute a global, interconnected highway network rather than isolated regional events. In boreal summer, cross‐Pacific ARs originate over Southeast Asia, are fueled by subtropical outflows from the Asian monsoon plume, transport warm, moist air across the North Pacific, and make landfall in North America (NA).
Yurong Song, Mengqian Lu, Yang Zhao
wiley   +1 more source

Simulated Tropical Troposphere Response to the QBO: Effect of Vertical Resolution, Gravity Waves Parameterization, and Boundary Forcing

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract An intermediate complexity general circulation model is used to isolate the effect of vertical resolution and gravity wave parameterization on the simulated monthly quasi‐biennial oscillation (QBO)‐tropical precipitation linkage. For low vertical resolution, the model is able to simulate QBO in the lowermost stratosphere, and its impact on the
Chen Schwartz, Chaim I. Garfinkel, Wen Chen   +2 more
wiley   +1 more source

Elliptical Orbit Representation for the Annual Evolution of the Northern Hemisphere Stratospheric Polar Vortex. Part I: Diagnosing Interannual Variability

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 5, 16 March 2026.
Abstract Using a single annual frequency with each year defined from July 1 to June 30 of the following calendar year, this study fits an ellipse to the yearly phase space trajectory of the daily time series of MU (stratospheric mass‐weighted zonally integrated zonal wind at 60°N) and M (total polar stratospheric air mass over 60–90°N) to represent the
Michael Secor, Jie Sun, Yueyue Yu, Zhaohua Wu, Ming Cai   +4 more
wiley   +1 more source

Influence of Western Pacific Madden–Julian Oscillation on New York City's Record‐Breaking Air Pollution in Early June 2023

Geophysical Research Letters
In early June 2023, New York City (NYC) and other cities in the northeastern US experienced a severe air pollution event. Although reports associated this hazardous pollution event with the smoke from Canadian wildfires, the factors triggering the ...
Yan Zhu, Pang‐chi Hsu, Yitian Qian
doaj   +1 more source

A Climatology of Mesoscale Convective System Hazards in the United States and Their Representation in a Convection‐Permitting Model

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 5, 16 March 2026.
Abstract Mesoscale convective systems (MCSs) are large, organized convective storms that frequently produce flash floods and other severe hazards such as damaging winds, hail, and tornadoes. Developing an observationally based MCS hazard climatology is important for establishing a baseline to evaluate the representation of these events in numerical ...
Wenjun Cui, Kimberly A. Hoogewind, Thomas J. Galarneau Jr.   +2 more
wiley   +1 more source

Assessment of the Madden‐Julian Oscillation in CMIP6 Models Based on Moisture Mode Theory

Geophysical Research Letters
The moist processes of the Madden‐Julian Oscillation (MJO) in the Coupled Model Intercomparison Project Phase 6 models are assessed using moisture mode theory‐based diagnostics over the Indian Ocean (10°S–10°N, 75°E–100°E). Results show that no model can
Qiao‐Jun Lin, Víctor C. Mayta, Ángel F. Adames Corraliza   +2 more
doaj   +1 more source

Seasonal Environmental Characteristics for the Tropical Cyclone Genesis in the Indian Ocean during the CINDY2011/DYNAMO Field Experiment

Atmosphere, 2016
This study investigated the seasonal environmental characteristics for tropical cyclone genesis (TCG) over the Indian Ocean during the Cooperative Indian Ocean Experiment on Intraseasonal Variability in the Year 2011 and the Dynamics of the Madden–Julian
Aya Tsuboi, Tetsuya Takemi, Kunio Yoneyama   +2 more
doaj   +1 more source

Synchronisation of Extreme Precipitation and Sea Surface Temperature Events in the Northern Hemisphere: A Complex Network Approach

International Journal of Climatology, Volume 46, Issue 3, 15 March 2026.
Using complex network theory and event synchronisation, we find distinct spatiotemporal structures of extreme precipitation and sea surface temperature events across the Northern Hemisphere. Our results show strong local and long‐range connectivity in terrestrial extremes, driven by atmospheric dynamics, contrasting with more localised marine extremes ...
Connor Saari, Jürgen Kurths, Gabriele Villarini, Behzad Ghanbarian   +3 more
wiley   +1 more source

Physical‐Background‐Constrained Bias Correction for Daily Precipitation Prediction Over China by a Subseasonal‐to‐Seasonal Model

Atmospheric Science Letters, Volume 27, Issue 3, March 2026.
The prediction skill of the CMA‐CPSv3 model beyond 15 days is hindered by both its systematic bias and its incapability in capturing the modulations of predictability sources. The regional‐aggregation‐based QM method can largely overcome the overfitting problem, eliminating the model bias that overestimates drizzle precipitation and underestimates ...
Jie Wu, Li Guo, Xiaolong Jia
wiley   +1 more source