Dataset
ESA Water Vapour Climate Change Initiative (Water_Vapour_cci): Total Column Water Vapour monthly gridded data over land at 0.05 degree resolution, version 4.2
Abstract
This dataset consists of monthly total column water vapour (TCWV) over land, at a 0.05 degree resolution, observed by various satellite instruments.
It has been produced by the European Space Agency Water Vapour Climate Change Initiative (Water_Vapour_cci), and forms part of their TCVW over land Climate Data Record 1 (TCWV-land (CDR-1)).
This version of the data is v4.2. This is an updated dataset, in summary providing the following improvements:
- Time series has been extended, now covering years 2000-2023.
- L1b input data has been extended by using the full time range of Terra MODIS measurements, and by ingesting Aqua MODIS and Sentinel-3 OLCI-B as additional sensors.
- Number of L2 observations contributing to a L3 grid cell is now provided per single sensor.
- Flags have been revised and extended.
Details
| Previous Info: |
No news update for this record
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| Previously used record identifiers: |
No related previous identifiers.
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| Access rules: |
Public data: access to these data is available to both registered and non-registered users.
Use of these data is covered by the following licence(s): https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_watervapour_terms_and_conditions.pdf When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. |
| Data lineage: |
Data were produced by the project team and supplied for archiving at the Centre for Environmental Data Analysis (CEDA). |
| Data Quality: |
For inormation on the data quality see the documentation at https://climate.esa.int/projects/water-vapour/
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| File Format: |
Files are provided in NetCDF format.
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Process overview
Instrument/Platform pairings
Computation Element: 1
| Title | Derivation of the ESA Water Vapour Climate Change Initiative Total Column Water Vapour over land (TCWV-land) product, v4.2 |
| Abstract | For information on the derivation of the ESA Water Vapour CCI Total Column Water Vapour over land (TCWV-land) data, please see the ATBD (Algorithm Theoretical Baseline Document). |
| Input Description | None |
| Output Description | None |
| Software Reference | None |
| Output Description | None |
- standard_name: status_flag
- units:
- var_id: atmospheric_conditions_flag
- long_name: Atmospheric conditions flag
- units: kg/m2
- long_name: Average retrieval uncertainty
- var_id: tcwv_err
- var_id: crs
- long_name: Coordinate Reference System
- var_id: lat_bnds
- long_name: Latitude cell boundaries
- var_id: lon_bnds
- long_name: Longitude cell boundaries
- long_name: Number of Total Column of Water Vapour retrievals contributing to L3 grid cell
- units:
- var_id: num_obs_OLCI_B
- long_name: Number of days in month with a valid TCWV value in L3 grid cell
- var_id: num_days_tcwv
- units:
- units: kg/m2
- long_name: Random retrieval uncertainty
- var_id: tcwv_ran
- units: kg/m2
- long_name: Standard deviation of Total Column of Water Vapour
- var_id: stdv
- standard_name: status_flag
- long_name: Surface type flag
- var_id: surface_type_flag
- units:
- var_id: time_bnds
- long_name: Time cell boundaries
- standard_name: atmosphere_water_vapor_content
- units: kg/m2
- var_id: tcwv
- long_name: Total Column of Water
Co-ordinate Variables
- units: degrees_north
- standard_name: latitude
- var_id: lat
- long_name: Latitude
- units: degrees_east
- standard_name: longitude
- var_id: lon
- long_name: Longitude
- standard_name: time
- var_id: time
- units: days
- long_name: Product dataset time given as days since 1970-01-01
Temporal Range
2000-03-01T00:00:00
2023-12-31T23:59:59
Geographic Extent
90.0000° |
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-180.0000° |
180.0000° |
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-90.0000° |