Results 81 to 90 of about 711,710 (171)

Quantifying Nighttime Gravity Wave‐Driven Mesosphere‐Ionosphere Coupling Over CONUS Using NASA AWE Radiance and GNSS TEC Observations

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract We present the first coordinated study of nighttime mesosphere‐ionosphere coupling over the continental United States (CONUS) from January through November 2024 using NASA Atmospheric Waves Experiment (AWE) airglow measurements near 87 km and GNSS Total Electron Content observations near 300 km.
Sreelekshmi Radhakrishnan Girijakumary, Xian Lu   +1 more
wiley   +1 more source

Impact of the assimilation of ozone from the Tropospheric Emission Spectrometer on surface ozone across North America [PDF]

, 2009
We examine the impact of assimilating ozone observations from the Tropospheric Emission Spectrometer (TES) on North American surface ozone abundances in the GEOS-Chem model in August 2006.
Parrington, M., Thompson, A. M., Jones, D. B. A., Witte, J. C., Bowman, K. W., Millet, D. B., Leblanc, T., Merrill, J., Oltmans, S. J., Tarasick, D. W., Jones, D. B.A.   +10 more
core   +1 more source

Automated monitoring of road surfaces taking into account the correction of tropospheric delays of satellite navigation signals

Вестник Самарского государственного технического университета. Серия: Технические науки
The article considers the development of an automated road surface monitoring subsystem taking into account the correction of tropospheric delays of satellite navigation signals. Global and regional tropospheric models recommended by ICAO SARPS and their
K. Badanis
doaj   +1 more source

GPS Coordinate Estimates by “a priori” Tropospheric Delays from NWP using Ultra-Rapid Orbits

Annals of Geophysics, 2006
Comparisons of high accuracy GPS positioning estimates using scientific GPS software through three different processing strategies have been done. The two Italian baselines in a time period of 5 months during 2004 made a calculus data set. For high ...
R. Santangelo, S. Fazlagic', M. Boccolari   +2 more
doaj   +1 more source

Assimilation of 5G Base Station Networks as Ultra‐Dense Atmospheric Sensors for Advancing Heavy Rainfall Prediction

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract The zenith total delay (ZTD) retrieved from 5G communication base stations represents a novel observation source for numerical weather prediction (NWP), leveraging the extensive global deployment of 5G infrastructure. In this study, the direct assimilation of 5G‐ZTD observations into a high‐resolution NWP system was accomplished for the first ...
Jian Yin, Xiefei Zhi, Danni Huang, Chunqing Shang, Hong Liang, Kezuan Wang   +5 more
wiley   +1 more source

Improved Estimates of Equilibrium Climate Sensitivity From Non‐Equilibrated Climate Simulations

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 20, 28 October 2026.
Abstract Calculating equilibrium climate sensitivity (ECS) requires simulations of a thousand years or more for the climate to re‐establish equilibrium, but most ECS estimates are derived from shorter model integrations. The widely used “Gregory method” for such estimates systematically underestimates ECS, a bias previously attributed to the time ...
Haozhe He, Brian J. Soden, Ryan J. Kramer   +2 more
wiley   +1 more source

Mitigating Residual Tropospheric Delay to Improve User’s Network-Based Positioning [PDF]

, 2004
Existing apriori tropospheric models are not sufficiently accurate to remove tropospheric delay from GPS observations. Remaining effects of residual tropospheric delay need to be estimated to ensure high accuracy and reliability of GPS positioning ...
Lee, Young-Jin, Jinling Wang, Young-jin Lee, Wang, Jinling, Mohamed, Azhari, Rizos, Chris, Azhari Mohamed, Musa, Tajul A, Chris Rizos, Tajul A. Musa, Musa, Tajul A.   +10 more
core  

Global Multi‐Model Eddy Dissipation Rate Probability Density Functions for Clear‐Air Turbulence Under Climate Change

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 20, 28 October 2026.
Abstract Atmospheric turbulence poses a major risk to aviation, and it is expected to intensify as a response to climate change. The probability density functions (PDFs) of dozens of different clear‐air turbulence (CAT) diagnostics have been found to shift to higher values in response to climate change, consistent with strengthened vertical wind shear ...
Joana de Medeiros, Paul D. Williams
wiley   +1 more source

Analysis of Spatial Decorrelation of Small-Scale Tropospheric Delay Using High-Resolution NWP Data. [PDF]

Sensors (Basel), 2023
Håkegård JE, Sokolova N, Morrison A.
europepmc   +1 more source

Indian Ocean Convection Modulates the Early‐Winter Pacific‐North American Response to El Niño

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract The El Niño‐Southern Oscillation is a dominant driver of Pacific‐North American (PNA) variability on seasonal‐to‐interannual timescales through its influence on tropical Pacific convection. However, the early‐winter PNA response exhibits pronounced event‐to‐event diversity during El Niño.
Xu Teng, Wenjun Zhang, Suqiong Hu
wiley   +1 more source