IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingTropospheric delay, for which water vapor is a major cause, is a significant source of error in the global navigation satellite system. This article presents the gray figure-based zenith tropospheric delay prediction (GFZTD) model, which is built on ...
Yixin Zhu +5 more
doaj +2 more sources
Modeling and Forecasting the GPS Zenith Troposphere Delay in West Antarctica Based on Different Blind Source Separation Methods and Deep Learning [PDF]
Sensors, 2020 Tropospheric delay is an important error source in global positioning systems (GPS), and the water vapor retrieved from the tropospheric delay is widely used in meteorological research such as climate analysis and weather forecasting.
Qingchuan Zhang +3 more
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A New Zenith Tropospheric Delay Grid Product for Real-Time PPP Applications over China
Sensors, 2017 Tropospheric delay is one of the major factors affecting the accuracy of electromagnetic distance measurements. To provide wide-area real-time high precision zenith tropospheric delay (ZTD), the temporal and spatial variations of ZTD with altitude were ...
Yidong Lou +5 more
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Estimating Zenith Tropospheric Delay Based on GPT2w Model
IEEE Access, 2019 To precisely and conveniently estimate zenith tropospheric delay (ZTD), troposphere refractivity is deduced through global pressure and temperature 2w (GPT2w) model and surface meteorology devices, ZTD is estimated based on integration of refractivity in
Qiang Liu, Xihong Chen, Zan Liu
exaly +3 more sources
A Selective State-Space-Model Based Model for Global Zenith Tropospheric Delay Prediction
Remote SensingThe Zenith Tropospheric Delay (ZTD) is a significant atmospheric error affecting the accuracy of the Global Navigation Satellite System (GNSS). Accurate estimation of the ZTD is essential for enhancing GNSS positioning precision and plays a critical role
Cong Yang +7 more
doaj +2 more sources
Mesoscale GPS Zenith Delay assimilation during a Mediterranean heavy precipitation event [PDF]
Advances in Geosciences, 2008 The impact of assimilating Zenith Total delay (ZTD) observations from a mesoscale ground-based GPS network over Western Europe is evaluated for the heavy precipitation event of 5–9 September 2005 over Southern France.
X. Yan +4 more
doaj +2 more sources
Kinematic Zenith Tropospheric Delay Estimation with GNSS PPP in Mountainous Areas [PDF]
Sensors, 2021 Gérard Lachapelle +2 more
exaly +2 more sources
A global grid model for the estimation of zenith tropospheric delay considering the variations at different altitudes [PDF]
Geoscientific Model Development, 2023 The accuracy of tropospheric delay correction heavily depends on the quality of the tropospheric model, and the zenith tropospheric delay (ZTD) is an important factor affecting the tropospheric delay. Therefore, it is essential to establish a precise ZTD
L. Huang +10 more
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Tropospheric refraction and its influence through Zenith Total Path Delay at different IGS stations [PDF]
, 2023 The propagation of the Global Navigation Satellite System (GNSS) signals through the atmosphere is affected by the electron content in the ionosphere and the air density in the electrically neutral troposphere, thus causing a signal delay and leading to ...
Vasilić, Violeta +3 more
core +3 more sources
Impact analysis of processing strategies for long-term GPS zenith tropospheric delay (ZTD)
Atmospheric Measurement Techniques, 2023 Abstract. Homogenized atmospheric water vapour data are an important prerequisite for climate analysis. Compared with other techniques, GPS has an inherent homogeneity advantage, but it still requires reprocessing and homogenization to eliminate impacts of applied strategy and observation environmental changes where a selection of proper processing ...
Jingna Bai +6 more
openaire +3 more sources