Modelling Systematic Residuals in Absolute ZTD Estimation from GPS [PDF]
2006 IEEE International Symposium on Geoscience and Remote Sensing, 2006 Abstract —Tropsheric delay is one of important error sources in GPS positioning and InSAR applications. Accurate measurements of ZTD (Zenith Tropospheric Delay) can be used for correcting the atmospheric delay on GPS and InSAR as well as atmospheric science research and applications (e.g. numeric weather prediction).
S. Jin +3 more
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Real-time ZTD from GPS, Galileo, GPS+Galileo over 2019 [PDF]
, 2020 Time series of real-time ZTD from GPS-only, Galileo-only and GPS+Galileo real-time PPP solution calculated in GNSS-WARP software.The study has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie ...
Hadas, T (via Mendeley Data)
core +1 more source
Fusion-Based Regional ZTD Modeling Using ERA5 and GNSS via Residual Correction Kriging
Remote SensingZenith Tropospheric Delay (ZTD) and its associated atmospheric water vapor information constitute essential environmental variables for Earth observation (EO)-based atmospheric monitoring and environmental variable retrieval.
Yang Cai +6 more
doaj +1 more source
GNSS Real-Time ZTD/PWV Retrieval Based on PPP with Broadcast Ephemerides [PDF]
GNSS precise point positioning (PPP) plays an important role in retrieving atmospheric water vapor values and performing numerical weather prediction. However, traditional PPP relies on real-time orbits and clocks, which require continuous internet or ...
Gen Zhang +5 more
core +3 more sources
Remote 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
Calculation GNSS STD, SWD, and ZTD
, 2023 Python package for creating GNSS STD/SWD as well as modelled (GPT/VMF) ZTD Install all required packages indicated in the requirements.
openaire +1 more source
Aportes al análisis y cálculo del ZTD en base a redes geodésicas y modelos atmosféricos: Assessment of ZTD derived from geodetic networks and atmospheric models [PDF]
, 2023 Cuando la señal GNSS atraviesa masas de vapor de agua (WV), la velocidad de propagación disminuye generando un retardo en el camino que recorre el pulso.
Rosell, Patricia Alejandra +2 more
core +1 more source
Estimation and Evaluation of Zenith Tropospheric Delay from Single and Multiple GNSS Observations
Remote Sensing, 2023 Multi-Global Navigation Satellite Systems (multi-GNSS) (including GPS, BDS, Galileo, and GLONASS) provide a significant opportunity for high-quality zenith tropospheric delay estimation and its applications in meteorology.
Sai Xia, Shuanggen Jin, Xuzhan Jin
doaj +1 more source
The ztd estimated values from three models named Site-wise, Grid-wise, and GPT3 and the ztd reference values provided by IGS between 2016 and 2020. [PDF]
<p>The data includes the zenith total delay (ztd) values computed by three models provided by the VMF data server, namely <strong>Site-wise, Grid-wise, and GPT3</strong>, for target stations during the period from 2016 to 2020, along ...
Yao
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Improved Zenith Tropospheric Delay Modeling Using the Piecewise Model of Atmospheric Refractivity
Remote Sensing, 2020 As one of the atmosphere propagation delays, the tropospheric delay is a significant error source that should be properly handled in high-precision global navigation satellite system (GNSS) applications.
Liu Yang +4 more
doaj +1 more source