Results 21 to 30 of about 138 (130)

Handling Method for Outages of IGS Real-Time Service (RTS) in GNSS Real-Time Sensing of Atmospheric Water Vapor

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
The continuity and accuracy of real-time (RT) global satellite navigation system (GNSS) sensing of atmospheric water vapor can be seriously affected by a lack of connectivity.
HaoJun Li, XiaoMing Li, Qi Kang
doaj   +1 more source

Investigating the Inter-Relationships among Multiple Atmospheric Variables and Their Responses to Precipitation

Atmosphere, 2023
In this study, a comprehensive investigation into the inter-relationships among twelve atmospheric variables and their responses to precipitation was conducted. These variables include two Global Navigation Satellite Systems (GNSS) tropospheric products,
Haobo Li, Suelynn Choy, Safoora Zaminpardaz, Brett Carter, Chayn Sun, Smrati Purwar, Hong Liang, Linqi Li, Xiaoming Wang   +8 more
doaj   +1 more source

Accuracy Analysis of Real-Time Precise Point Positioning—Estimated Precipitable Water Vapor under Different Meteorological Conditions: A Case Study in Hong Kong

Atmosphere, 2023
Precipitable water vapor (PWV) monitoring with real-time precise point positioning (PPP) is required for the improved early detection of increasingly common extreme weather occurrences. This study takes Hong Kong as the research object.
Ying Xu, Lin Ma, Fangzhao Zhang, Xin Chen, Zaozao Yang   +4 more
doaj   +1 more source

A Novel Method for Monitoring Tropical Cyclones’ Movement Using GNSS Zenith Tropospheric Delay

Remote Sensing, 2023
Precipitable water vapor (PWV) is an important meteorological factor for predicting extreme weather events such as tropical cyclones, which can be obtained from zenith tropospheric delay (ZTD) by using a conversion.
Dajun Lian, Qimin He, Li Li, Kefei Zhang, Erjiang Fu, Guangyan Li, Rui Wang, Biqing Gao, Kangming Song   +8 more
doaj   +1 more source

Assessing the Impact of GNSS ZTD Data Assimilation into the WRF Modeling System during High-Impact Rainfall Events over Greece

Remote Sensing, 2020
The derivation of global navigation satellite systems (GNSSs) tropospheric products is nowadays a state-of-the-art technique that serves both research and operational needs in a broad range of applications in meteorology.
Christos Giannaros, Vassiliki Kotroni, Konstantinos Lagouvardos, Theodore M. Giannaros, Christos Pikridas   +4 more
doaj   +1 more source

High-spatial-resolution mapping of precipitable water vapour using SAR interferograms, GPS observations and ERA-Interim reanalysis [PDF]

Atmospheric Measurement Techniques, 2016
A high spatial and temporal resolution of the precipitable water vapour (PWV) in the atmosphere is a key requirement for the short-scale weather forecasting and climate research.
W. Tang, M. Liao, L. Zhang, W. Li, W. Yu
doaj   +1 more source

Residuals of Tropospheric Delays from GNSS Data and Ray-Tracing as a Potential Indicator of Rain and Clouds

Remote Sensing, 2018
The Global Navigation Satellite System (GNSS) is commonly recognized by its all-weather capability. However, observations depend on atmospheric conditions which requires the induced tropospheric delay to be estimated as an unknown parameter.
Paweł Hordyniec, Jan Kapłon, Witold Rohm, Maciej Kryza   +3 more
doaj   +1 more source

Comparisons between the WRF data assimilation and the GNSS tomography technique in retrieving 3-D wet refractivity fields in Hong Kong [PDF]

Annales Geophysicae, 2019
Water vapor plays an important role in various scales of weather processes. However, there are limited means to accurately describe its three-dimensional (3-D) dynamical changes. The data assimilation technique and the Global Navigation Satellite System (
Z. Xiong, B. Zhang, Y. Yao
doaj   +1 more source

THE DETERMINATION OF ATMOSPHERIC WATER CONTENT FROM METEOROLOGICAL AND GPS DATA

Геодинамика и тектонофизика, 2016
The Global Positioning System (GPS) based on satellites and the networks of dual frequency receivers are actively used for geodetic and geophysical applications, as well as for studying the ionosphere and troposphere.
O. F. Lukhneva, M. G. Dembelov, A. V. Lukhnev   +2 more
doaj   +1 more source

Convective Biases in the US DOE Global Storm‐Resolving Model: Insights From Regionally Refined Simulations During the CACTI Campaign

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 5, 16 March 2026.
Abstract Accurately simulating convective processes in complex terrain remains a critical challenge for global storm‐resolving models (GSRMs). This study systematically evaluates moist convective biases in the Regionally Refined Mesh configuration of the U.S.
Tianning Su, Yunyan Zhang, Hsi‐Yen Ma, Adam C. Varble, Peter A. Bogenschutz   +4 more
wiley   +1 more source