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GFZ GNSS-derived precipitable water vapor for climate reference network GRUAN

The Global Climate Observing System (GCOS) Reference Upper Air Network (GRUAN, https://www.gruan.org/ ) of the World Meteorological Organization (WMO) is an international observing network, designed to meet climate requirements. Upper air observations within the GRUAN network will provide long-term high-quality climate records. A GNSS receiver is part of the GRUAN station equipment with highest priority for measuring of atmospheric water vapor. GRUAN observations are intended to provide long-term high-quality data for the reliable determination of climatological trends and to provide further insight into atmospheric processes. Precise GNSS data analysis is a key to reach data quality on the highest level. Due to its long-term experience in GNSS data processing, GFZ was selected as a Central GRUAN GNSS Data Processing Centre. This data publicatoion includes the GRUAN Data Product (GDP) of GFZ: GNSS Precipitable Water (PW).

GFZ GNSS-derived precipitable water vapor for climate reference network GRUAN

The Global Climate Observing System (GCOS) Reference Upper Air Network (GRUAN, https://www.gruan.org/ ) of the World Meteorological Organization (WMO) is an international observing network, designed to meet climate requirements. Upper air observations within the GRUAN network will provide long-term high-quality climate records. A GNSS receiver is part of the GRUAN station equipment with highest priority for measuring of atmospheric water vapor. GRUAN observations are intended to provide long-term high-quality data for the reliable determination of climatological trends and to provide further insight into atmospheric processes. Precise GNSS data analysis is a key to reach data quality on the highest level. Due to its long-term experience in GNSS data processing, GFZ was selected as a Central GRUAN GNSS Data Processing Centre. This data publicatoion includes the GRUAN Data Product (GDP) of GFZ: GNSS Precipitable Water (PW).

GFZ GNSS-derived tropospheric data products (rapid)

The GFZ Helmholtz Centre for Geosciences (GFZ) acts as an operational analysis center of the EUMETNET EIG GNSS water vapour programme (E-GVAP, https://egvap.dmi.dk/). GFZ provides all types of tropospheric products in near-real time in three processing lines: ultra-rapid (E-GVAP solution ID is GF1U), rapid (GF1R), and global (GF1G). The rapid solution series is published hourly with a delay of around 25 minutes after the end of each hour. Operational tropospheric products of GFZ included in this data publication are: (1) Zenith Total Delays (ZTD), Integrated Water Vapor (IWV); (2) Tropospheric gradients in North and East directions; (3) Slant Total Delays (STD)

GFZ GNSS-derived tropospheric data products (global)

The GFZ Helmholtz Centre for Geosciences (GFZ) acts as an operational analysis center of the EUMETNET EIG GNSS water vapour programme (E-GVAP, https://egvap.dmi.dk/). GFZ provides all types of tropospheric products in near-real time in three processing lines: ultra-rapid (E-GVAP solution ID is GF1U), rapid (GF1R), and global (GF1G). The global solution series is published hourly with a delay of around 50 minutes after the end of each hour. Operational tropospheric products of GFZ included in this data publication are: (1) Zenith Total Delays (ZTD), Integrated Water Vapor (IWV); (2) Tropospheric gradients in North and East directions; (3) Slant Total Delays (STD)

GFZ GNSS-derived tropospheric data products (ultra-rapid)

The GFZ Helmholtz Centre for Geosciences (GFZ) acts as an operational analysis center of the EUMETNET EIG GNSS water vapour programme (E-GVAP, https://egvap.dmi.dk/). GFZ provides all types of tropospheric products in near-real time in three processing lines: ultra-rapid (E-GVAP solution ID is GF1U), rapid (GF1R), and global (GF1G). The ultra-rapid solution series is published hourly with a delay of around 15 minutes after the end of each hour. Operational tropospheric products of GFZ included in this data publication are: (1) Zenith Total Delays (ZTD), Integrated Water Vapor (IWV); (2) Tropospheric gradients in North and East directions; (3) Slant Total Delays (STD)

GFZ GNSS-derived tropospheric data products (ultra-rapid)

The GFZ Helmholtz Centre for Geosciences (GFZ) acts as an operational analysis center of the EUMETNET EIG GNSS water vapour programme (E-GVAP, https://egvap.dmi.dk/). GFZ provides all types of tropospheric products in near-real time in three processing lines: ultra-rapid (E-GVAP solution ID is GF1U), rapid (GF1R), and global (GF1G). The ultra-rapid solution series is published hourly with a delay of around 15 minutes after the end of each hour. Operational tropospheric products of GFZ included in this data publication are: (1) Zenith Total Delays (ZTD), Integrated Water Vapor (IWV); (2) Tropospheric gradients in North and East directions; (3) Slant Total Delays (STD)

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