Results 101 to 110 of about 14,203 (319)
A Lagrangian Perspective on the Growth of Midlatitude Storms
AGU Advances, Volume 6, Issue 3, June 2025.Abstract Extratropical storms dominate midlatitude climate and weather and are known to grow baroclinically and decay barotropically. Traditionally, quantitative climatic measures of storm activity have been mostly based on Eulerian measures, taking into account the mean state of the atmosphere and how those affect Eulerian eddy activity, but they do ...
Or Hadas, Yohai Kaspi
wiley +1 more source
Determining geopotential difference via relativistic precise point positioning time comparison: A case study using simulated observations [PDF]
arXiv, 2020 According to general relativity theory (GRT), the geopotential difference (GD) can be determined by comparing the change in time difference between precise clocks using the precise point positioning (PPP) time transfer technique, referred to as the relativistic PPP time comparison approach.
arxiv
Evaluating Global Machine Learning Models for Tropical Cyclone Dynamics and Thermodynamics
Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 2, June 2025.Abstract Machine Learning Weather Prediction (MLWP) models have recently demonstrated remarkable potential to rival physics‐based Numerical Weather Prediction (NWP) models, offering global weather forecasts at a fraction of the computational cost. However, thorough evaluations are essential before considering MLWP models as replacements for NWP models.
Pankaj Lal Sahu +2 more
wiley +1 more source
Recent Study of Anomaly of Global Annual Geopotential Height and Global Warming
, 2014 This paper studies the anomaly of global annual 500 hpa geopotential anomaly and global warming through the period (1950-2011). Anomaly method, linear trend and linear correlation coefficient techniques are referred to identify and describe the ...
Y. Hafez, M. Almazroui
semanticscholar +1 more source
Geophysical Research Letters, Volume 52, Issue 10, 28 May 2025.Abstract Climate interventions like Marine Cloud Brightening have gained attention for their potential to protect vulnerable marine ecosystems from the worst impacts of climate change. Early modeling studies raised concerns about potential harmful global side effects stemming from regional interventions. Here we propose a modeling framework to evaluate
Will Krantz, J. David Neelin, Fiaz Ahmed
wiley +1 more source
Geophysical Research Letters, Volume 52, Issue 10, 28 May 2025.Abstract This study investigates the impact of the lower‐thermospheric winter‐to‐summer circulation on the thermosphere's thermal structure and meridional circulation. Using NCAR TIE‐GCM, we compare simulations with and without the lower‐thermospheric circulation, finding that its inclusion enhances summer‐to‐winter thermospheric circulation by 40% in ...
Jack C. Wang +3 more
wiley +1 more source
Geo-spatial Information ScienceAccording to General Relativity Theory (GRT), by comparing the frequencies between two precise clocks at two different stations, the gravity potential (geopotential) difference between the two stations can be determined due to the gravity frequency shift
Kuangchao Wu +4 more
doaj +1 more source
Samudra: An AI Global Ocean Emulator for Climate
Geophysical Research Letters, Volume 52, Issue 10, 28 May 2025.Abstract AI emulators for forecasting have emerged as powerful tools that can outperform conventional numerical predictions. The next frontier is to build emulators for long climate simulations with skill across a range of spatiotemporal scales, a particularly important goal for the ocean.
Surya Dheeshjith +6 more
wiley +1 more source
Recently Intensified Tropical‐Extratropical Linkage Modulated by Arctic Sea Ice Loss
Geophysical Research Letters, Volume 52, Issue 10, 28 May 2025.Abstract Through data analysis and numerical simulations, this study reveals the winter Arctic Warming Pattern (AWP), characterized by anticyclonic anomalies over the North Pacific and the Urals, which plays a pivotal role in linking the Arctic and tropics. The AWP is significantly correlated with the tropical Pacific Walker Circulation (PWC).
Xiang Zhang, Bingyi Wu
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Geophysical Research Letters, Volume 52, Issue 10, 28 May 2025.Abstract The Boreal Summer Intraseasonal Oscillation (BSISO) is a prominent tropical intraseasonal variability during summer. It propagates northeastward from the northern Indian Ocean to the western North Pacific and has a more complex structure than the winter‐dominant Madden‐Julian Oscillation, which makes its prediction challenging.
Yuki Maeda, Masaki Satoh
wiley +1 more source