Anomalous Zenith Total Delays for an Insular Tropical Location: The Tahiti Island Case [PDF]
Remote Sensing, 2022 The weighted mean temperature of the troposphere, Tm, is a key parameter in GNSS meteorology. It can be routinely derived based on meteorological data from radiosonde (RS) or numerical weather models. Alternatively, it can be also derived through a least-
Fangzhao Zhang +3 more
doaj +3 more sources
On the Definition of the Strategy to Obtain Absolute InSAR Zenith Total Delay Maps for Meteorological Applications [PDF]
Frontiers in Earth Science, 2020 Atmospheric Phase Screens (APSs) derived from Interferometric Synthetic Aperture Radar (InSAR) observations contain the difference between the tropospheric water-vapor-induced delay of two acquisition epochs, i.e., the slave and the master (or reference)
Agostino N. Meroni +12 more
doaj +5 more sources
Remote SensingCurrently, ground-based global navigation satellite system (GNSS) techniques have become widely recognized as a reliable and effective tool for atmospheric monitoring, enabling the retrieval of zenith total delay (ZTD) and precipitable water vapor (PWV ...
Qiuying Huang +7 more
doaj +3 more sources
Zenith Wet Delay (ZWD) Seasonal Correlation with Rainfall in Cikapundung River Discharge, North Bandung Region, Indonesia [PDF]
E3S Web of Conferences, 2019 In a GPS survey study, the biases produced by the ionosphere and troposphere layers are known as ionospheric biases and troposphere bias. The distance deviation due to the slowing travel time of GPS signals in troposphere is commonly referred to as ...
Kuntjoro Wedyanto +4 more
doaj +3 more sources
Impact of a priori zenith hydrostatic delay errors on GPS estimates of station heights and zenith total delays [PDF]
Geophysical Research Letters, 2006 Corrections to zenith atmospheric delays (including hydrostatic components) are estimated in geodetic analyses using partial derivatives that relate wet delays to the phase observations. At low‐elevation angles, partial derivatives of the hydrostatic and wet delays are sufficiently different as to cause errors in the estimates of station heights and ...
Tregoning, Paul, Herring, T A
openaire +4 more sources
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 +2 more sources
Zenith total delay study of a mesoscale convective system: GPS observations and fine-scale modeling [PDF]
Tellus A: Dynamic Meteorology and Oceanography, 2002 Zenith Total Delay (ZTD) observations and model calculations are used to analyze a mesoscale convective system which yielded a large amount of precipitation over a short period of time in the north-western Mediterranean. ZTD observations are derived from the GPS signal delay whereas the ZTD model results are calculated by means of the MM5 mesoscale ...
Cucurull, I. +2 more
openaire +2 more sources
Kinematic Zenith Tropospheric Delay Estimation with GNSS PPP in Mountainous Areas
Sensors, 2021 The use of global navigation satellite systems (GNSS) precise point positioning (PPP) to estimate zenith tropospheric delay (ZTD) profiles in kinematic vehicular mode in mountainous areas is investigated.
Paul Gratton +3 more
doaj +2 more sources
, 2023 The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)
Zus, Florian +4 more
openaire +4 more sources
The Best Number of IGS Stations by Grouping Network for Solving Total Zenith Delay
Advanced Materials Research, 2010 Short-term adverse weather conditions have a direct impact on geological disasters. However, the data source of high-precision weather on real time can be provided by GPS technology. At the same time, the high-precision and real-time weather forecast can provide important and basic information for geological disasters monitoring, forecasting and ...
Ying Chun Yue, Zhi Chao Zhang, Pan Xiong
openaire +2 more sources