Results 121 to 130 of about 24,612 (296)

Multiscale Dynamical Processes Shaping a Mixing Line

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 12, 28 June 2025.
Abstract The paper discusses multiscale dynamical processes shaping a mixing line in the upper troposphere/lower stratosphere (UTLS). It focuses on aircraft observations above southern Scandinavia during a mountain wave event and how they can be analyzed based on dynamic variables and the trace gases N2 ${\mathrm{N}}_{2}$O and CO.
Andreas Dörnbrack, Hans‐Christoph Lachnitt, Peter Hoor, Paola Rodriguez Imazio   +3 more
wiley   +1 more source

Evaluating ERA5 Downscaled Simulations Using CCAM: Large‐Scale Circulation Processes and Teleconnections

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 12, 28 June 2025.
Abstract Regional climate projections are critical for climate risk assessments and planning. Previous studies have mostly focused on evaluating climate models for temperature and precipitation biases without identifying the origins of these biases, which remain poorly understood.
Shaoxiu Ma, Ralph Trancoso, Jozef Syktus, Sarah Chapman, Rohan Eccles   +4 more
wiley   +1 more source

Emergence of Winter Large‐Scale Transient Atmospheric Waves in the Northern Hemisphere

Geophysical Research Letters, Volume 52, Issue 11, 16 June 2025.
Abstract Transient atmospheric waves, which modulate the mid‐latitude storm tracks, are projected to intensify over most of the mid‐latitudes in Northern Hemisphere winter, but to emerge out of the internal variability only over Eurasia, implying localized climate change impacts over this region.
Itamar Karbi, Rei Chemke
wiley   +1 more source

Measuring the gravity potential between two remote sites with CVSTT technique using two hydrogen clocks

Geo-spatial Information Science
According 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, Wen-Bin Shen, Xiao Sun, Chenghui Cai, Ziyu Shen   +4 more
doaj   +1 more source

Construction of Temperature Climate Data Records in the Upper Troposphere and Lower Stratosphere Using Multiple RO Missions From September 2006 to July 2023 at NESDIS/STAR

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 11, 16 June 2025.
Abstract We develop a new monthly zonal mean climatology (MMC) in the upper troposphere and lower stratosphere from September 2006 to July 2023 using the dry temperature profiles from multiple global navigation satellite system (GNSS) radio occultation (RO) missions processed by the GNSS RO Science and Data Center (SDC) at the NOAA Center for Satellite
Jun Zhou, Shu‐Peng Ho, Xinjia Zhou, Xi Shao, Guojun Gu, Yong Chen, Tung‐Chang Liu, Xin Jing   +7 more
wiley   +1 more source

Assimilation of Dual‐Pol Radar KDP Observations With the GSI Ensemble Kalman Filter for the Analysis and Prediction of a Squall Line

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 11, 16 June 2025.
Abstract The direct assimilation of dual‐polarization radar observations is realized within the gridpoint statistical interpolation data assimilation (DA) system using the ensemble Kalman filter method. This study involves three experiments designed to evaluate the impacts of assimilating the polarimetric variable specific differential phase (KDP) for ...
Feifei Shen, Aiqing Shu, Jinzhong Min, Zheng Wu, Yi Wang, Dongmei Xu, Jiajun Chen, Shen Wan   +7 more
wiley   +1 more source

Evaluating the performance of various models for deriving orthometricheights using Global Navigation Satellite System (GNSS) data

Nova Geodesia
Orthometric heights are vital for fields such as topographic mapping, construction, engineering, and geophysical studies. This study examines the performance of five Global Geopotential Models (GGMs) and Global Navigation Satellite System (GNSS) data in
Herbert TATA, Clementina Ajibola OLAOYE
doaj   +1 more source

A Novel Thermodynamical Predictor of Tropical High‐Cloud Area Coverage: Estimated Anvil‐Outflow Stability

Geophysical Research Letters, Volume 52, Issue 11, 16 June 2025.
Abstract The stability at the lapse‐rate tropopause (LRT) was previously defined as the upper‐tropospheric stability (UTS and SUT) but might underestimate the stability control on high‐level clouds, since there is little direct connection between convective processes and the thermal stratification at the LRT.
Zhenquan Wang, Jian Yuan
wiley   +1 more source

Reanalysis Data Sets Underestimate the 1928–29 Summer Precipitation Deficits During the Late‐1920s Megadrought in Northern China

Geophysical Research Letters, Volume 52, Issue 11, 16 June 2025.
Abstract Numerous tree‐ring and historical records indicate a megadrought in the Loess Plateau (LP) of northern China during 1928–29, yet its dynamical causes remain unclear. This study reconstructs LP summer precipitation from 1901 to 2000 using multiple paleoclimate proxies to assess precipitation and reanalysis data sets.
Congxi Fang, Yu Liu, Changfeng Sun, Huiming Song, Lijun Su, Zhiman Su, Lu Wang, Qiufang Cai, Qiang Li, Liang Yi, Jinlei Chen, Meng Ren, Linlin Cui   +12 more
wiley   +1 more source

A Novel 3D Physics‐Integrated Swin‐Transformer Model for Precise High‐Resolution Urban Boundary Layer Wind Speed Estimation

Geophysical Research Letters, Volume 52, Issue 11, 16 June 2025.
Abstract Accurately estimating low‐altitude wind speed (WS) is a critical and challenging task, with significant implications for urban meteorology and pollution dispersion modeling. This study developed a novel three‐dimensional Physics‐Integrated Swin‐Transformer (3D‐PST) deep learning model to estimate high‐resolution WS in the urban boundary layer.
Kecheng Peng, Jinyuan Xin, Xiaoqian Zhu, Xiaoqun Cao, Zifa Wang, Yongjing Ma, Dandan Zhao, Xinbing Ren   +7 more
wiley   +1 more source