Results 141 to 150 of about 506 (156)
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Large-Scale ENVISAT ASAR Persistent Scatterer Interferometry Using GNSS ZTD Products
2022<p>Interferometric Synthetic Aperture Radar (InSAR) provides essential information dealing with different natural hazards caused by hydrogeological processes turned into subsidence (Lu et al., 2010). Among all geodetic techniques for monitoring land surface deformation, InSAR has demonstrated the most precise observations in both high ...
Atefe Choopani +2 more
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Ground-GNSS ZTD trends for climate models
GNSS Zenith Total Delay (ZTD) estimates are quantities of great interest by climate modellers since atmospheric water vapour is the major greenhouse gas. Therefore, the importance of its accurate, long-term monitoring and evaluation of trends and variability, potentially serving as independent benchmarks to climatological models, both on longer trends ...Marcelo C. Santos +17 more
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Reducing ZHD–ZWD mutual absorption errors for blind ZTD model users
Acta Geodaetica et Geophysica, 2020In precise point positioning (PPP), the zenith hydrostatic delay (ZHD) is traditionally treated as a priori value from the ZHD model but the zenith wet delay (ZWD) is treated as an unknown parameter to estimated. For some near real-time PPP tasks, priori ZHD from the blind ZHD models are often used because external meteorological measurement or ...
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Consistency and Homogeneity of ZTD Estimates from IGS Repro3
In 2019-2020, the International GNSS Service (IGS) coordinated its third reanalysis of the complete history of GNSS data collected by the IGS global network since 1994. Ten analysis centers (ACs) participated in this so-called “Repro3” effort, using the latest models and methodologies. Several of them provided, among other products,Hugo Breton +2 more
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Apparent Short-Period GNSS-ZTD Disturbance Correlated With Precipitation Events
IEEE Geoscience and Remote Sensing Letters, 2022Yongchao Ma +3 more
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Trgovačka društva prema ZTD-u i domaćoj i inozemnoj sudskoj praksi
2010"Trgovačka društva prema ZTD-u i domaćoj i inozemnoj sudskoj praksi“ s detaljnim, jasnim i praktičnim komentarima odredbi ZTD-a, koje se povezuju s domaćom i inozemnom sudskom praksom.
Slakoper, Zvonimir, Buljan Vesna
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Establishment of ZTD model based on back propagation neural networks
International Conference on Remote Sensing, Mapping, and Geographic Systems (RSMG 2023), 2023Weizhao Huang +4 more
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Zhang Time Discretization (ZTD) Formulas and Applications
Yunong Zhang, Jinjin Guoopenaire +1 more source