Results 61 to 70 of about 221 (150)

Capturing Extreme Water Vapor and Instability With High‐Resolution GNSS Monitoring

Atmospheric Science Letters, Volume 27, Issue 2, February 2026.
This study used data from a high‐resolution Global Navigation Satellite System network (< 10 km spacing), including private stations, to analyze water vapor structure during a heavy rainfall event in Japan. The network captured localized extreme precipitable water vapor (> 70 mm) and a moist absolutely unstable layer near the humid core.
Mikiko Fujita
wiley   +1 more source

Impact of high-resolution data assimilation of GPS zenith delay on Mediterranean heavy rainfall forecasting [PDF]

, 2009
International audienceImpact of GPS (Global Positioning System) data assimilation is assessed here using a high-resolution numerical weather prediction system at 2.5 km horizontal resolution.
Doerflinger, Erik, V. Ducrocq, Masson, Frédéric, Jaubert, Geneviève, Chéry, Jean, G. Jaubert, K. Boniface, Boniface, Karen, Champollion, Cédric, F. Masson, C. Champollion, Yan, Xin, Brousseau, P., P. Brousseau, Ducrocq, Véronique, J. Chéry, E. Doerflinger, X. Yan   +17 more
core   +1 more source

A comprehensive high resolution data collection for tropospheric water vapor assessment for the Upper Rhine Graben, Germany

, 2021
Different observation and modeling techniques were used to derive integrated water vapor (IWV) fields for the Upper Rhine Graben in the border region of Germany, Switzerland, and France. The dataset features 1) point-scale IWV and zenith total delay (ZTD)
Kutterer, Hansjörg, Kamm, Bettina, Kunstmann, Harald, Shehaj, Endrit, Wagner, Andreas, Yuan, Peng, Schenk, Andreas, Möller, Gregor, Fersch, Benjamin, Geiger, Alain, Hinz, Stefan   +10 more
core   +1 more source

Water Vapor Vertical Distribution on Mars After Six Years of TGO/NOMAD Solar Occultations: 1. Global Climatology

Journal of Geophysical Research: Planets, Volume 131, Issue 2, February 2026.
Abstract We present vertical profiles of water vapor obtained during six continuous years of solar occultation observations in the infrared by the Nadir and Occultation for MArs Discovery (NOMAD) instrument on board Trace Gas Orbiter. The retrievals have been performed with an inversion code previously applied to smaller samples of this data set, but ...
A. Brines, M. A. López‐Valverde, B. Funke, F. González‐Galindo, S. Aoki, I. R. Thomas, G. L. Villanueva, G. Liuzzi, J. T. Erwin, U. Grabowski, F. Forget, J. J. Lopez‐Moreno, J. Rodriguez‐Gomez, F. Daerden, L. Trompet, B. Ristic, M. R. Patel, J. A. Holmes, G. Bellucci, A. Modak, A. C. Vandaele   +20 more
wiley   +1 more source

A Novel Robust High‐Precision Ionospheric Delay Modeling for PPP‐RTK Using Crowdsourced Data

Space Weather, Volume 24, Issue 2, February 2026.
Abstract The performance of PPP‐RTK is critically dependent on the quality of ionospheric corrections derived from a reference network. While the proliferation of mass‐market Global Navigation Satellite System (GNSS) devices offers a promising crowdsourcing opportunity to densify or replace this infrastructure, it introduces the formidable challenge of
Bo Wang, Jiaxi Zhu, Zhilu Wu, Dejin Zhang, Zhao Li, Minsi Ao, Shengfeng Gu   +6 more
wiley   +1 more source

Comparative Analysis of Mainstream ISB Stochastic Model Characteristics for Enhancing GNSS PPP With Wuhan University Precise Products

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This study focuses on the critical challenge of selecting an overall optimal ISB stochastic model to improve GNSS PPP performance, which establishes a comprehensive assessment framework integrating positioning accuracy, convergence time, ISB characteristics, residual analysis, correlation metrics and physical mechanism interpretation.
Ban Zhao
wiley   +1 more source

Atmospheric Water Vapor and Precipitation Coupling in Southwestern South America

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Most studies linking atmospheric water vapor and precipitation emphasize short records, tropical regions, or the Northern Hemisphere. Long‐term variability of water vapor and its coupling with precipitation remain poorly understood across strong latitudinal and climatic gradients.
Raúl Valenzuela, Jorge Jara, Cristian Martinez‐Villalobos   +2 more
wiley   +1 more source

A Refined Prediction Model for Regional Zenith Troposphere Combining ICEEMDAN and BiLSTM-XGBoost

Remote Sensing
To address the degradation of zenith tropospheric delay (ZTD) prediction accuracy caused by time-varying noise and error accumulation in multi-step forecasting, this study proposes an integrated prediction model, named IBX, which combines improved ...
Chao Chen, Yinghao Zhao, Wenyuan Zhang, Yulong Ge, Jiajia Yuan, Chao Hu   +5 more
doaj   +1 more source

Tropospheric Propagation Effects Extracted From ADS‐B Messages

Engineering Reports, Volume 7, Issue 12, December 2025.
This study explores the use of ADS‐B messages to estimate tropospheric effects, effectively isolating atmospheric influences from interference. The approach enables independent lower atmosphere studies and offers a cost‐free supplementary method for satellite applications, benefiting GNSS systems, especially at low elevation angles where multipath and ...
Alina‐Mihaela Badescu
wiley   +1 more source

Interannual Rainfall Variability in West Africa: Reconstruction Based on Atmospheric Circulation Patterns

International Journal of Climatology, Volume 45, Issue 14, 30 November 2025.
This study provides a statistical tool for the reconstruction of annual rainfall anomalies based on atmospheric circulation patterns in the data‐scarce region of West Africa. ABSTRACT The West African Monsoon, known for its significant rainfall variability, led to the Sahel drought from 1968 to the 1990s, followed by a recovery in rainfall since the ...
Manuel Rauch, Jan Bliefernicht, Marlon Maranan, Andreas H. Fink, Harald Kunstmann   +4 more
wiley   +1 more source