Kinematic Zenith Tropospheric Delay Estimation with GNSS PPP in Mountainous Areas [PDF]
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
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Transformer-Based Global Zenith Tropospheric Delay Forecasting Model
Remote Sensing, 2022 Zenith tropospheric delay (ZTD) plays an important role in high-precision global navigation satellite system (GNSS) positioning and meteorology. At present, commonly used ZTD forecasting models comprise empirical, meteorological parameter, and neural ...
Huan Zhang +4 more
doaj +4 more sources
Estimating Zenith Tropospheric Delay Based on GPT2w Model [PDF]
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
Zan Liu, Xihong Chen, Qiang Liu
doaj +2 more sources
Real-time precise point positioning-based zenith tropospheric delay for precipitation forecasting. [PDF]
Sci Rep, 2018 AbstractGPS-based Zenith Tropospheric Delay (ZTD) estimation should be easily obtained in a cost-effective way, however, the most previous studies focus on post-processed ZTD estimates using satellite orbit and clock products with at least 3–9 hours latency provided by International GNSS Service (IGS), which limits the GNSS meteorological application ...
Zhao Q, Yao Y, Yao W, Li Z.
europepmc +4 more sources
Refining the ERA5-based global model for vertical adjustment of zenith tropospheric delay
Satellite Navigation, 2022 Tropospheric delay is an important factor affecting high precision Global Navigation Satellite System (GNSS) positioning and also the basic data for GNSS atmospheric research.
Ge Zhu +5 more
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THE EFFECT OF SEASONAL VARIATION ON GNSS ZENITH TROPOSPHERIC DELAY [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesThe Global Navigation Satellite System (GNSS) signal experiences delays caused by the atmosphere, leading to the lengthening of the geometric path of the ray, commonly referred to as tropospheric delay. This delay is a significant source of error in GNSS
N. Tekin Ünlütürk, U. Doğan
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An improved global zenith tropospheric delay model GZTD2 considering diurnal variations [PDF]
Nonlinear Processes in Geophysics, 2016 The zenith tropospheric delay (ZTD) is an important atmospheric parameter in the wide application of global navigation satellite systems (GNSS) technology in geoscience.
Y. Yao, Y. Hu, C. Yu, B. Zhang, J. Guo
doaj +7 more sources
Assessment and Validation of Small-Scale Tropospheric Delay Estimations Based on NWP Data [PDF]
SensorsThis paper investigates the applicability of the Numerical Weather Prediction (NWP) data for characterizing the gradient of zenith wet delay in horizontal direction observed on short baselines over larger territories.
Jan Erik Håkegård +3 more
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A zenith tropospheric delay correction model based on the regional CORS network
Geodesy and Geodynamics, 2012 Tropospheric delay is a primary error source in earth observations and a variety of radio navigation technologies. In this paper, the relationship between zenith tropospheric delays and the elevation and longitude of stations is analyzed using the zenith
Huang Liangke, Liu Lilong, Yao Chaolong
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Evaluation of Zenith Tropospheric Delay Derived from ERA5 Data over China Using GNSS Observations
Remote Sensing, 2020 The latest reanalysis of the European Center for Medium-Range Weather Forecasts (ECMWF), ERA5, can provide atmospheric data for calculating Zenith Tropospheric Delay (ZTD) with hourly temporal resolution, which is a key factor in Global Navigation ...
Chunhua Jiang +4 more
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