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Journal of Advances in Modeling Earth Systems, Volume 18, Issue 4, April 2026.Abstract Accurate representation of atmospheric water vapor is crucial for improving numerical weather prediction, particularly over regions with complex topography and sparse observation networks. Although assimilation of Global Navigation Satellite System (GNSS)‐derived integrated products such as zenith total delay or precipitable water vapor can ...
Arash Tayfehrostami +3 more
wiley +1 more source
GPS-Derived zenith tropospheric delay assimilation into numeric atmosphere model
, 2020 © 2014 SPIE. The total zenith tropospheric delay (ZTD) is an important parameter of the atmosphere and directly or indirectly reflects the weather processes and variations.
Khutorova O. +3 more
core
Zenith wet delay retrieval using two different techniques for the South American region and their comparison [PDF]
, 2021 Retrieving atmospheric water vapor content using GNSS claimed the attention of the geodetic community ever since the beginning of the GPS deployment. The main purpose of the present work is to propose a comparison of the Zenith Wet Delay (ZWD) retrieved ...
Crespi, Mattia +8 more
core
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingZenith wet delay (ZWD) estimation is a key component for the global navigation satellite system (GNSS) meteorology. At present, the zenith hydrostatic delay can be computed with sufficient accuracy by means of empirical models, while the ZWD, which is ...
Rui Wang +3 more
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 +2 more
doaj +1 more source
Troposphere delay modeling in SLR based on PMF, VMF3o, and meteorological data
Progress in Earth and Planetary ScienceSatellite laser ranging (SLR) requires accurate troposphere delay models to properly correct the observed distances to satellites and derive fundamental geodetic and geodynamic parameters.
Mateusz Drożdżewski +1 more
doaj +1 more source
Retrieving Precipitable Water Vapor Data Using GPS Zenith Delays and Global Reanalysis Data in China
Remote Sensing, 2016 GPS has become a very effective tool to remotely sense precipitable water vapor (PWV) information, which is important for weather forecasting and nowcasting.
Peng Jiang +4 more
doaj +1 more source
AGFS: a two-step real-time tropospheric delay model by integrating GNSS, ERA5, and GFS
Geo-spatial Information ScienceTropospheric delay is a major error source in high-precision positioning with global navigation satellite systems (GNSS). However, accurately modeling tropospheric delay remains challenging, particularly for real-time applications in regions with sparse ...
Zhilu Wu +3 more
doaj +1 more source
A Review of Mapping Functions for the Radio Path Delay in the Neutral Atmosphere, GT-PR-NMA-2152
, 2004 We present a review of developed mapping functions used to map the radio wave propagation delay, caused by the neutral atmosphere, from the zenith direction to a given elevation angle or vice versa.
Jensen, Anna B. O., Elgered, Gunnar
core
Effect of GPS tropospheric delay Neill mapping function simplification [PDF]
, 2009 The mathematical modeling on the mapping function models should be revised and also simplified to improve the calculation of the GPS tropospheric delay.
Sakidin, Hamzah +5 more
core +1 more source