GFZ GNSS-derived precipitable water vapor for climate reference network GRUAN
Cite as:
Dick, Galina; Wickert, Jens; Zus, Florian; Männel, Benjamin; Bradke, Markus; Ramatschi, Markus; Brandt, Andre (2024): GFZ GNSS-derived precipitable water vapor for climate reference network GRUAN. V. 1.0. GFZ Data Services. https://doi.org/10.5880/GFZ.1.1.2024.003
Status
I N R E V I E W : Dick, Galina; Wickert, Jens; Zus, Florian; Männel, Benjamin; Bradke, Markus; Ramatschi, Markus; Brandt, Andre (2024): GFZ GNSS-derived precipitable water vapor for climate reference network GRUAN. V. 1.0. GFZ Data Services. https://doi.org/10.5880/GFZ.1.1.2024.003
Abstract
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).
Methods
GFZ GRUAN Processing Centre generates Precipitable Water (PW) products for GNSS sites of the GRUAN network using the latest development version of the EPOS.P8 Software.
The solution series contains:
Precipitable Water (PW), converted from the Zenith Total Delays (ZTD)
Folder sinex_trop_GRUAN_EPOS8 with subfolders for GPS weeks (e.g., w2348): daily files for each processed GNSS site.
Files:
IIIIWWWWD.tro: files with Zenith Total Delays, Precipitable Water (also called Integrated Water Vapor), tropospheric gradients;
IIIIWWWWD.zpd: files with Zenith Total Delays and tropospheric gradients;
where
IIII - GNSS site name,
WWWW - GPS week,
D - day of the week;
Data format: SINEX_TRO: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5030246
The processing with EPOS.P8 is described in detail in Wang et al. (2019).
Authors
Dick, Galina;GFZ Helmholtz Centre for Geosciences, Potsdam, Germany
Wickert, Jens;GFZ Helmholtz Centre for Geosciences, Potsdam, Germany
Zus, Florian;GFZ Helmholtz Centre for Geosciences, Potsdam, Germany
Männel, Benjamin;GFZ Helmholtz Centre for Geosciences, Potsdam, Germany
Bradke, Markus;GFZ Helmholtz Centre for Geosciences, Potsdam, Germany
Ramatschi, Markus;GFZ Helmholtz Centre for Geosciences, Potsdam, Germany
Brandt, Andre;GFZ Helmholtz Centre for Geosciences, Potsdam, Germany
Contact
Dick, Galina
(Senior Scientist); GFZ Helmholtz Centre for Geosciences, Potsdam, Germany; ➦
Zus, Florian
(Scientist); GFZ Helmholtz Centre for Geosciences, Potsdam, Germany;
Funders
GFZ Helmholtz Centre for Geosciences
Keywords
Precipitable Water, Integrated Water Vapor, Atmospheric Water Vapor, Climate
CharacterString: 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).
pointOfContact
CI_ResponsibleParty
individualName
CharacterString: Dick, Galina
organisationName
CharacterString: GFZ Helmholtz Centre for Geosciences, Potsdam, Germany
CI_OnLineFunctionCode (codeList=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode codeListValue=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode_information): information
CharacterString: GFZ GRUAN Processing Centre generates Precipitable Water (PW) products for GNSS sites of the GRUAN network using the latest development version of the EPOS.P8 Software.
The solution series contains:
Precipitable Water (PW), converted from the Zenith Total Delays (ZTD)
Folder sinex_trop_GRUAN_EPOS8 with subfolders for GPS weeks (e.g., w2348): daily files for each processed GNSS site.
Files:
IIIIWWWWD.tro: files with Zenith Total Delays, Precipitable Water (also called Integrated Water Vapor), tropospheric gradients;
IIIIWWWWD.zpd: files with Zenith Total Delays and tropospheric gradients;
where
IIII - GNSS site name,
WWWW - GPS week,
D - day of the week;
Data format: SINEX_TRO: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5030246
The processing with EPOS.P8 is described in detail in Wang et al. (2019).
Released
Dataset
Abstract
;GFZ Helmholtz Centre for Geosciences, Potsdam, Germany
Files
