WATCH forcing data (WFD) - 20th Century LWdown (surface incident longwave radiation) 1901-2001

The WATCH Forcing data is a twentieth century meteorological forcing dataset for land surface and hydrological models. It consists of three/six-hourly states of the weather for global half-degree land grid points. It was generated as part of the EU FP 6 project "WATCH" (WATer and global CHange") which ran from 2007-2011. The data was generated in 2 tranches with slightly different methodology: 1901-1957 and 1958-2001, but generally the dataset can be considered as continuous. More details regarding the generation process can be found in the associated WATCH technical report and paper in J. Hydrometeorology. To understand how the data grid is formed it is necessary to read the attached WFD-land-long-lat-z files either in NetCDF or DAT formats. The data covers land points only and excludes the Antarctica. LWdown or surface incident longwave radiation (also known as downwards long-wave radiation flux ) is the surface incident longwave radiation averaged over the next six hours, measured in W/m2 at 6 hourly resolution and 0.5 x 0.5 degrees spatial resolution.

Identification info

Metadata Language: English (en)

Character set: utf8

Dataset Reference Date (): 2011-08-01

Identifier: CEH:EIDC: / 1314892215339

Identifier: https://catalogue.ceh.ac.uk/id/e5d00d66-dcf5-4b0e-9346-f6205a336385

UK Centre for Ecology & Hydrology - Dr. Tanya Warnaars

NERC EDS Environmental Information Data Centre

Maintenance and update frequency: notPlanned

GEMET - INSPIRE themes, version 1.0 ()

Atmospheric Conditions
Meteorological geographical features

Limitations on Public Access: otherRestrictions

Other constraints: Registration is required to access this data

Use constraints: otherRestrictions

Other constraints: Licence terms and conditions apply

Use constraints: otherRestrictions

Other constraints: Please note that these data are based on climate reanalysis data, plus a spatial interpolation (from one-degree to half-degree), elevation correction and monthly-correction based on gridded observations. As such the WATCH Forcing data are designed for use in modelling (e.g. hydrological modelling) and for where good meteorological observations are not readily available.

Use constraints: otherRestrictions

Other constraints: Please reference the use of the WATCH forcing data in any work published using http://journals.ametsoc.org/doi/pdf/10.1175/2011JHM1369.1

Spatial representation type: grid

Distance: 30 urn:ogc:def:uom:EPSG::9001

Topic category

Climatology, meteorology, atmosphere

Begin date: 1911-01-01

End date: 2001-12-31

Code: WGS 84

Distribution Information

Data format

netCDF ()

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Quality Scope: dataset

Other: dataset

Report

Dataset Reference Date (): 2010-12-08

Statement: These data were created as part of the EU FP6 project WATCH which was coordinated by NERC-CEH and ran from 2007-2011. The data were generated in two tranches according to time interval. The data from 1958-2001 were based on ECMWF (European Centre for Medium Range Weather Forecasting) "ERA-40" reanalysis data via interpolation, elevation correction and monthly bias correction from gridded observations. The data from 1901-1957 were created via re-ordering of the ERA-40 reanalysis one year at a time. For full details of the process see the WATCH technical report No 22 and Weedon (2011, J. Hydrometeorology).

Metadata

File identifier: e5d00d66-dcf5-4b0e-9346-f6205a336385 XML

Metadata Language: English (en)

Character set: ISO/IEC 8859-1 (also known as Latin 1)

Resource type: dataset

Hierarchy level name: dataset

Metadata Date: 2024-02-27T16:18:17

Metadata standard name: UK GEMINI

Metadata standard version: 2.3

NERC EDS Environmental Information Data Centre

Lancaster Environment Centre, Library Avenue, Bailrigg , Lancaster , LA1 4AP , UK

https://eidc.ac.uk/

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