Results 11 to 20 of about 2,466 (175)
High-Precision ZTD Model of Altitude-Related Correction
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 Zenith tropospheric delay (ZTD) is one of the main error sources in space geodesy. The existing regional or global models, such as Global Pressure and Temperature 3 (GPT3), Global Tropospheric model, Global Hopfield, and Shanghai Astronomical observatory
Qingzhi Zhao +5 more
doaj +3 more sources
Refining the ERA5-based global model for vertical adjustment of zenith tropospheric delay
Satellite Navigation, 2022 Tropospheric delay is an important factor affecting high precision Global Navigation Satellite System (GNSS) positioning and also the basic data for GNSS atmospheric research.
Ge Zhu +5 more
doaj +2 more sources
Comparative analysis of blind tropospheric correction models in Ghana
Journal of Geodetic Science, 2021 The impact of the earth’s atmospheric layers, particularly the troposphere on Global Navigation satellite system (GNSS) signals has become a major concern in GNSS accurate positioning, navigation, surveillance and timing applications.
Osah S. +3 more
doaj +1 more source
A New Approach for the Development of Grid Models Calculating Tropospheric Key Parameters over China
Remote Sensing, 2021 Pressure, water vapor pressure, temperature, and weighted mean temperature (Tm) are tropospheric parameters that play an important role in high-precision global navigation satellite system navigation (GNSS).
Ge Zhu +7 more
doaj +1 more source
Atmosphere, 2022 Tropospheric delay is one of the key factors that may affect high-precision satellite navigation and positioning and water vapor retrieval performance.
Xin Wang +8 more
doaj +1 more source
Comprehensive Analysis and Validation of the Atmospheric Weighted Mean Temperature Models in China
Remote Sensing, 2022 Atmospheric weighted mean temperature (Tm) is a key parameter used by the Global Navigation Satellite System (GNSS) for calculating precipitable water vapor (PWV).
Yongjie Ma +6 more
doaj +1 more source
A new zenith hydrostatic delay model for real-time retrievals of GNSS-PWV [PDF]
Atmospheric Measurement Techniques, 2021 The quality of the zenith hydrostatic delay (ZHD) could significantly affect the accuracy of the zenith wet delay (ZWD) of the Global Navigation Satellite System (GNSS) signal, and from the ZWD precipitable water vapor (PWV) can be obtained.
L. Li +17 more
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A precipitation forecast model applied with the RBF based on the improved GPT3 model in Japan
, 2023 Abstract Accurate monitoring of atmospheric water vapor content is essential for the early warning of extreme weather events. As known, GNSS zenith troposphere delay (GNSS_ZTD) is an indispensable data source for retrieving precipitable water vapor (PWV).
li song +7 more
openaire +1 more source
Development of a New Tabular Zenith Tropospheric Delay Model for Real-Time GNSS Applications
IEEE Access, 2021 The tropospheric delay is a major error source for Global Navigation Satellite System (GNSS) positioning and navigation, and usually can be corrected by using an empirical model.
Jian Mao, Junyang Han, Tiejun Cui
doaj +1 more source
WTM: The Site-Wise Empirical Wuhan University Tropospheric Model
Remote Sensing, 2022 The tropospheric model is the key model in space geodetic techniques such as Global Navigation Satellite Systems (GNSS) and Very Long Baseline Interferometry (VLBI).
Yaozong Zhou +5 more
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