Results 21 to 30 of about 1,293 (182)

Accuracy Evaluation and Analysis of GNSS Tropospheric Delay Inversion from Meteorological Reanalysis Data

open access: yesRemote Sensing, 2022
Accurate estimation of tropospheric delay is significant for global navigation satellite system’s (GNSS) high-precision navigation and positioning. However, due to the random and contingent changes in weather conditions and water vapor factors, the ...
Guolin Liu   +6 more
doaj   +1 more source

Tropospheric delay efficiency from CSRS-PPP online service for meteorologists in Iran [PDF]

open access: yesNumerical Methods in Civil Engineering, 2021
Earth’s tropospheric delay is a valuable parameter in meteorological and climatic applications and studies such as short-term weather forecasting, monitoring of severe weather conditions, and long-term climate change.
A. Sam Khaniani, S. Farzaneh
doaj   +1 more source

Inter-technique validation of tropospheric slant total delays [PDF]

open access: yes, 2017
An extensive validation of line-of-sight tropospheric slant total delays (STD) from Global Navigation Satellite Systems (GNSS), ray tracing in numerical weather prediction model (NWM) fields and microwave water vapour radiometer (WVR) is presented.
Brenot, Hugues   +10 more
core   +9 more sources

An improved global zenith tropospheric delay model GZTD2 considering diurnal variations [PDF]

open access: yesNonlinear Processes in Geophysics, 2016
The zenith tropospheric delay (ZTD) is an important atmospheric parameter in the wide application of global navigation satellite systems (GNSS) technology in geoscience.
Y. Yao, Y. Hu, C. Yu, B. Zhang, J. Guo
doaj   +1 more source

Global Assessment of the GNSS Single Point Positioning Biases Produced by the Residual Tropospheric Delay

open access: yesRemote Sensing, 2021
The tropospheric delay is one of the main error sources that degrades the accuracy of Global Navigation Satellite Systems (GNSS) Single Point Positioning (SPP).
Ling Yang   +3 more
doaj   +1 more source

GPS zenith tropospheric delay (ZTD) variability in the Mediterranean

open access: yesPhysics and Chemistry of the Earth, Part A: Solid Earth and Geodesy, 2001
Abstract In the context of the MAGIC project (Meteorological Applications of GPS Integrated Column Water Vapor Measurements in the Western Mediterranean), zenith tropospheric delays (ZTD) are computed from Global Positioning System (GPS) signals at permanent sites in the western Mediterranean area continuously since November 1998.
Haase, J., Vedel, H., Ge, M., Calais, E.
openaire   +4 more sources

Preliminary signs of the initiation of deep convection by GNSS [PDF]

open access: yes, 2013
This study reports on the exploitation of GNSS (Global Navigation Satellite System) and a new potential application for weather forecasts and nowcasting.
Brenot, H   +8 more
core   +3 more sources

Detecting Signatures of Convective Storm Events in GNSS‐SNR: Two Case Studies From Summer 2021 in Switzerland

open access: yesGeophysical Research Letters, Volume 50, Issue 21, 16 November 2023., 2023
Abstract Global Navigation Satellite Systems (GNSS) are not only a state‐of‐the‐art sensor for positioning and navigation applications but also a valuable tool for remote sensing. Through the usage of L‐band carrier frequencies, GNSS acts as an all‐weather‐operation system, offering substantial benefits compared to optical systems. Nevertheless, severe
Matthias Aichinger‐Rosenberger   +3 more
wiley   +1 more source

Retrieving Precipitable Water Vapor From Shipborne Multi‐GNSS Observations [PDF]

open access: yes, 2019
©2019. American Geophysical UnionPrecipitable water vapor (PWV) is an important parameter for climate research and a crucial factor to achieve high accuracy in satellite geodesy and satellite altimetry. Currently Global Navigation Satellite System (GNSS)
Ge, Maorong   +8 more
core   +1 more source

The effect of data sources on calculating mean temperature and integrated water vapor in Iran

open access: yesMeteorological Applications, Volume 30, Issue 6, November/December 2023., 2023
Weighted mean temperature in Iran. Abstract The weighted mean temperature (Tm) plays a crucial role in calculating Precipitable Water Vapor (PWV) and integrated water vapor (IWV) using Global Navigation Satellite Systems (GNSS) techniques. Currently, the primary sources for meteorological parameters are radiosonde measurements and Numerical Weather ...
Hassan Rahimi   +2 more
wiley   +1 more source

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