Wang, Xiaoming; Li, Haobo; Choy, Suelynn; Huang, Qiuying; Cai, Wenhui; Rea, Anthony; Zhang, Hongxin; Elneser, Luis; Kuleshov, Yuriy (2025): A comprehensive 22-year global GNSS climate data record from 5085 stations [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.982476
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Published: 2025-06-12 • DOI registered: 2025-07-11
Abstract:
Abstract. This work presents a comprehensive global GNSS climate data record derived from 5085 stations, spanning a 22-year time period 2000–2021. Generated through the GPAC-Repro campaign, the dataset utilises state-of-the-art processing methodologies and precise products from the International GNSS Service (IGS) Repro-3 initiative. The dataset includes high-quality hourly estimates of Zenith Total Delay (ZTD) and Precipitable Water Vapour (PWV), offering improved accuracy and spatiotemporal coverage. A rigorous data screening and quality assessment framework was implemented, including formal error detection, offset identification, and extensive cross-validation with ERA5 reanalysis dataset, radiosonde profiles, and Very Long Baseline Interferometry (VLBI) measurements. Collectively, these efforts ensured the consistency, accuracy, and homogeneity of the dataset. The insights provided by the dataset address critical data gaps in global climate observing systems and provide a robust foundation for advancing climate research and applications.
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Further details:
Funding:
Coverage:
Median Latitude: 21.907101 * Median Longitude: -37.744969 * South-bound Latitude: -89.998930 * West-bound Longitude: -178.120940 * North-bound Latitude: 83.643240 * East-bound Longitude: 179.301330
Date/Time Start: 2000-10-30T00:00:00 * Date/Time End: 2021-12-30T00:00:00
Minimum ELEVATION: -360.78335 m a.s.l. * Maximum ELEVATION: 5272.14495 m a.s.l.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Station label | Station | Wang, Xiaoming | |||
| 2 | LATITUDE | Latitude | Wang, Xiaoming | Geocode | ||
| 3 | LONGITUDE | Longitude | Wang, Xiaoming | Geocode | ||
| 4 | ELEVATION | Elevation | m a.s.l. | Wang, Xiaoming | Geocode | |
| 5 | First year of observation | Year start | a AD | Wang, Xiaoming | ||
| 6 | Day of the year | DOY | day | Wang, Xiaoming | Start | |
| 7 | DATE/TIME | Date/Time | Wang, Xiaoming | Geocode – Observation start date | ||
| 8 | Last year of observation | Year end | a AD | Wang, Xiaoming | ||
| 9 | Day of the year | DOY | day | Wang, Xiaoming | End | |
| 10 | DATE/TIME | Date/Time | Wang, Xiaoming | Geocode – Observation end date | ||
| 11 | Number of years | Years | a | Wang, Xiaoming | Observation length | |
| 12 | Percentage | Perc | % | Wang, Xiaoming | Data completeness | |
| 13 | Binary Object | Binary | Wang, Xiaoming | |||
| 14 | Binary Object (File Size) | Binary (Size) | Bytes | Wang, Xiaoming |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Basic curation (CurationLevelB)
Size:
40664 data points
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