An enhanced integrated water vapour dataset from more than 10 000 global ground-based GPS stations in 2020 [PDF]
Earth System Science Data, 2023 We developed a high-quality global integrated water vapour (IWV) dataset from 12 552 ground-based global positioning system (GPS) stations in 2020. It consists of 5 min GPS IWV estimates with a total number of 1 093 591 492 data points.
P. Yuan +10 more
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Development of a New Tabular Zenith Tropospheric Delay Model for Real-Time GNSS Applications
IEEE Access, 2021 The tropospheric delay is a major error source for Global Navigation Satellite System (GNSS) positioning and navigation, and usually can be corrected by using an empirical model.
Jian Mao, Junyang Han, Tiejun Cui
doaj +1 more source
Zenith total delay study of a mesoscale convective system : GPS observations and fine-scale modelling [PDF]
, 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
Cucurull, I. +2 more
core +1 more source
Troposphere Sensing Using Grazing‐Angle GNSS‐R Measurement From LEO Satellites
Geophysical Research Letters, Volume 50, Issue 24, 28 December 2023., 2023 Abstract This paper studies a new concept of using global navigation satellite system (GNSS) signals coherently reflected over relatively smooth ocean and ice surfaces from very low elevation angles (below ∼8°) and received by low Earth orbit (LEO) satellites to retrieve the tropospheric information.
Yang Wang
wiley +1 more source
A new vertical reduction model for enhancing the interpolation accuracy of VMF1/VMF3 tropospheric delay products [PDF]
Geoscientific Model DevelopmentGrid-wise Vienna Mapping Functions 1 (VMF1) and Vienna Mapping Functions 3 (VMF3) tropospheric products are widely used to interpolate the a priori zenith hydrostatic delay (ZHD) and zenith wet delay (ZWD) over GNSS (Global Navigation Satellite Systems ...
P. Sun +8 more
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PWV Retrieval Performance Evaluation for the Fresh BDS‐3 With Multisource Data
Earth and Space Science, Volume 10, Issue 10, October 2023., 2023 Abstract The entire global operation of the newly launched BDS global navigation satellite system (BDS‐3) was completed in July 2020. After that, a series of performance tests were conducted, such as positioning, navigation, and signal experiments. However, the precipitable water vapor (PWV) retrieval performance evaluation of BDS‐3 has not yet been ...
Nan Jiang +6 more
wiley +1 more source
Development of a site-specific ZHD model using radiosonde data [PDF]
, 2012 Estimation of precipitable water vapor (PWV) in the atmosphere using ground based GPS (Global Positioning System) data requires an appropriate model for computation of zenith hydrostatic delay (ZHD).
D. Kashyap +5 more
core +1 more source
Earth and Space Science, 2021 In precipitable water vapor (PWV) retrievals from Global Navigation Satellite System (GNSS) data, the two essential parameters, namely, surface pressure (Ps) and weighted mean temperature (Tm), are often not available due to the lack of collocated ...
Biyan Chen +4 more
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Accuracy assessment of reanalysis datasets for GPS-PWV estimation using Indian IGS stations observations [PDF]
, 2022 GPS PWV (Precipitable Water Vapour) is estimated using three years ECMWF, JRA55, MERRA2, and NCEP datasets for two IGS stations HYDE and IISC in India to assess their accuracies over the Indian region.
Ashutosh Srivastava
core +1 more source
Precipitable Water Vapour Estimation from GNSS Observations: Methodology and Evaluation during a High-Precipitation Month in Santa Maria (RS) [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information SciencesPrecipitable Water Vapour (PWV) represents the total amount of water vapour contained in a vertical column of the atmosphere that is available for precipitation.
A. M. Albuquerque +2 more
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