Geoid, 2021 Global Navigation Satellite System (GNSS) semakin dikembangkan sebagai sistem penginderaan jauh atmosfer, salah satunya melalui perhitungan Zenith Tropospheric Delay (ZTD).
Norma Aji Cemara Mannani +1 more
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Estimating the impact of Global Navigation Satellite System horizontal delay gradients in variational data assimilation [PDF]
, 2018 We developed operators to assimilate Global Navigation Satellite System (GNSS) Zenith Total Delays (ZTDs) and horizontal delay gradients into a numerical weather model. In this study we experiment with refractivity fields derived from the Global Forecast
Dick, Galina +5 more
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SHAtropE—A Regional Gridded ZTD Model for China and the Surrounding Areas
Remote Sensing, 2020 A regional zenith tropospheric delay (ZTD) empirical model, referred to as SHAtropE (SHanghai Astronomical observatory tropospheric delay model—Extended), is developed and provides tropospheric propagation delay corrections for users in China and ...
Junping Chen +4 more
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Using ground-based GPS to characterize atmospheric turbulence [PDF]
, 2009 A new method for measuring and studying atmospheric turbulence is presented. The method uses data from a local network of GPS receivers. The GPS data are processed in a way that assures that the estimated zenith total delays (ZTD) contain the effects of ...
Davis, J.L., Hill, E.M., Nilsson, Tobias
core +1 more source
Empirical modeling of tropospheric delays with uncertainty [PDF]
Geoscientific Model DevelopmentAccurate modeling of tropospheric delay is important for high-precision data analysis of space geodetic techniques, such as the Global Navigation Satellite System (GNSS).
J. Wang +6 more
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An accurate method to correct atmospheric phase delay for InSAR with the ERA5 global atmospheric model [PDF]
, 2019 Differential SAR Interferometry (DInSAR) has proven its unprecedented ability and merits of monitoring ground deformation on a large scale with centimeter to millimeter accuracy.
Hu, Zhongbo +1 more
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Geosystems and Geoenvironment, 2023 Recent studies on the application of Zenith Tropospheric Delay (ZTD) in meteorology and geodesy have shown improved accuracy with the use of locally estimated ZTD compared to Global ZTD.
Ifechukwu Ugochukwu Nzelibe +1 more
doaj +1 more source
A New Global ZTD Forecast Model Based on Improved LSTM Neural Network
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingZenith tropospheric delay (ZTD), consisting of zenith hydrostatic delay (ZHD) and zenith wet delay (ZWD), is a significant contributor to errors in precise positioning using the global navigation satellite system (GNSS) precise point positioning (PPP ...
Lin He +7 more
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Tropospheric Correction for InSAR Using Interpolated ECMWF Data and GPS Zenith Total Delay From the Southern California Integrated GPS Network [PDF]
, 2010 A tropospheric correction method for Interferometric Synthetic Aperture Radar (InSAR) was developed using profiles from the European Centre for Medium-Range Weather Forecasts (ECMWF) and Zenith Total Delay (ZTD) from the Global Positioning System (GPS ...
Björndahl, Fredrik +5 more
core +1 more source
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
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