Evaluation of Zenith Tropospheric Delay Derived from ERA5 Data over China Using GNSS Observations [PDF]
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
doaj +2 more sources
The impact of GNSS multipath errors on ZTD estimates based on PPP [PDF]
, 2022 <p>Multipath is a large systematic GNSS error source which can bias the Zenith Total Delay (ZTD) estimation of Precise Point Positioning (PPP). In this paper, we explore the magnitudes and systematics of the errors caused by multipath in ZTD estimates.
Shengping He +2 more
openaire +3 more sources
EFFECTS OF OCEAN TIDE MODELS ON GNSS-ESTIMATED ZTD AND PWV IN TURKEY [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015 Abstract. Global Navigation Satellite System (GNSS) observations can precisely estimate the total zenith tropospheric delay (ZTD) and precipitable water vapour (PWV) for weather prediction and atmospheric research as a continuous and all-weather technique.
Shuanggen Jin +2 more
openaire +6 more sources
The Impact of Different Ocean Tide Loading Models on GNSS Estimated Zenith Tropospheric Delay Using Precise Point Positioning Technique [PDF]
Remote Sensing, 2020 Global navigation satellite systems (GNSSs) have become an important tool to derive atmospheric products, such as the total zenith tropospheric delay (ZTD) and precipitable water vapor (PWV) for weather and climate studies.
Jinglei Zhang +7 more
doaj +2 more sources
The Investigation of Global Real-Time ZTD Estimation from GPS/Galileo PPP Based on Galileo High Accuracy Service [PDF]
Remote SensingUtilizing real-time precise point positioning (PPP) technology is an effective approach for obtaining high-precision zenith tropospheric delay (ZTD). Without relying on the terrestrial internet, Galileo high accuracy service (HAS) can provide precise ...
Xin Chen +4 more
doaj +2 more sources
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
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
doaj +1 more source
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 +4 more sources
Ingestion of GNSS-Derived ZTD and PWV for Spatial Interpolation of PM2.5 Concentration in Central and Southern China. [PDF]
Int J Environ Res Public Health, 2021 With the increasing application of global navigation satellite system (GNSS) technology in the field of meteorology, satellite-derived zenith tropospheric delay (ZTD) and precipitable water vapor (PWV) data have been used to explore the spatial coverage ...
Wei P, Xie S, Huang L, Liu L.
europepmc +2 more sources
A New Four-Layer Inverse Scale Height Grid Model of China for Zenith Tropospheric Delay Correction
IEEE Access, 2020 To reduce the convergence time in the real-time precise point positioning (PPP), the zenith tropospheric delay (ZTD) needs to be modeled with high accuracy and sent to the users to be introduced as a priori value. Because of the height difference between
Shaotian Zhang +6 more
doaj +1 more source