Results 101 to 110 of about 1,619 (201)

Comparing Synoptic Pattern Evolution for Flash‐Flood‐Producing and Non‐Flash‐Flood‐Producing Mesoscale Convective Systems in the United States

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Understanding how the short‐term evolution of synoptic weather patterns influence Mesoscale Convective Systems (MCSs) is essential, as these systems are responsible for over half of central U.S. flash floods, leading to substantial socioeconomic and water resource management impacts. This study analyzes long‐term MCS data, flash flood reports,
Wenjun Cui, Zhanxiang Hua, Thomas J. Galarneau Jr., Zhe Feng, Alexandra Anderson‐Frey   +4 more
wiley   +1 more source

Optimized GNSS tropospheric delay model for high-precision dam deformation monitoring in large height difference environments

Array
Tropospheric delay is a critical error in Global Navigation Satellite System (GNSS) high-precision positioning, particularly in dam deformation monitoring requiring millimeter-level accuracy.
Yan Chen, Xingyu Zhou, Xiaowu Hu, Xuexi Liu, Zhuoni Jin, Jiayan Shen, Mingyuan Zhang, Jie Wang   +7 more
doaj   +1 more source

The Atmosphere's Substantial Role in Interannual Variability of Earth's Energy Imbalance

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Earth's Energy Imbalance (EEI) is a key metric to quantify climate change. While the ocean absorbs most excess heat, the atmosphere contributes only 1%–2% to the long‐term mean of EEI. However, our analysis of observational data demonstrates that variations in the atmosphere's energy content play a much larger role in interannual variations of
Michael Mayer, Norman G. Loeb, John M. Lyman, Gregory C. Johnson, Susanna Winkelbauer   +4 more
wiley   +1 more source

Weakening of Regional Hadley Circulation Delays Indian Summer Monsoon Rainfall Onset

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract The timing of the Indian Summer Monsoon Rainfall (ISMR) onset significantly influences agriculture, food security, livelihoods, and the Indian economy. While the drivers of climatological ISMR onset are well discussed, the causes of delayed ISMR onset remain unclear.
Vaishnavi A. Wadhai, Balaji Senapati, Mihir K. Dash, Swadhin K. Behera   +3 more
wiley   +1 more source

Zenith Tropospheric Delay Forecasting in the European Region Using the Informer–Long Short-Term Memory Networks Hybrid Prediction Model

Atmosphere
Zenith tropospheric delay (ZTD) is a significant atmospheric error that impacts the Global Navigation Satellite System (GNSS). Developing a high-precision, long-term forecasting model for ZTD can provide valuable insights into the overall trends of ...
Zhengdao Yuan, Xu Lin, Yashi Xu, Jie Zhao, Nage Du, Xiaolong Cai, Mengkui Li   +6 more
doaj   +1 more source

Trend of North African Dust Storms and Potential Link to Climate Change

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 3, 16 February 2026.
Abstract Over recent decades, North African dust storms have undergone marked variability, reflecting complex interactions between regional climate processes and environmental change. Using four decades (1984–2023) of visibility‐based observational records, we examine regional and seasonal trends in dust storm frequency across the Sahel and the Sahara,
Kolotioloma Yeo, Ayodeji Oluleye, Fidele Yoroba, Mehdi Hamidi, Yaping Shao   +4 more
wiley   +1 more source

An optimized BP neural network for modeling zenith tropospheric delay in the Chinese mainland using coupled particle swarm and genetic algorithm

Geo-spatial Information Science
Tropospheric delay influences high-precision navigation positioning and precipitable water vapor retrieval with the Global Navigation Satellite System (GNSS).
Liangke Huang, Haohang Bi, Hongxing Zhang, Shitai Wang, Fasheng Liao, Lilong Liu, Weiping Jiang   +6 more
doaj   +1 more source

Response of the Migrating Solar Semidiurnal Tide to Arctic and Antarctic Stratospheric Polar Vortices: A Comprehensive Study

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 3, 16 February 2026.
Abstract In this study, we use the Specified Dynamics Whole Atmosphere Community Climate Model with thermosphere‐ionosphere eXtension (SD‐WACCM‐X) to investigate how the migrating solar semidiurnal tide (SW2) in the mesosphere and lower thermosphere (MLT) responds to the strength of Arctic and Antarctic Stratospheric Polar Vortices (SPVs).
Sunil Kumar, Jens Oberheide, Xian Lu
wiley   +1 more source

Empirical Modeling of Tropospheric Delays and Uncertainty

Abstract. Accurate modeling of troposphere delay is important for high-precision data analysis of space geodetic techniques, such as the Global Navigation Satellite System (GNSS). The empirical troposphere delay models provide zenith delays with an accuracy of 3 to 4 cm globally and do not rely on external meteorological input.
Jungang Wang, Junping Chen, Yize Zhang
openaire   +2 more sources

Real-time tropospheric delay retrieval with GPS, GLONASS, Galileo and BDS data. [PDF]

Sci Rep, 2018
Pan L, Guo F.
europepmc   +1 more source