ERA5-Land daily: Surface temperature (2000 - 2020)
Overview:
ERA5-Land is a reanalysis dataset providing a consistent view of the evolution of land variables over several decades at an enhanced resolution compared to ERA5. ERA5-Land has been produced by replaying the land component of the ECMWF ERA5 climate reanalysis. Reanalysis combines model data with observations from across the world into a globally complete and consistent dataset using the laws of physics. Reanalysis produces data that goes several decades back in time, providing an accurate description of the climate of the past.
Surface temperature:
Temperature of the surface of the Earth. The skin temperature is the theoretical temperature that is required to satisfy the surface energy balance. It represents the temperature of the uppermost surface layer, which has no heat capacity and so can respond instantaneously to changes in surface fluxes.
The original ERA5-Land dataset (period: 2000 - 2020) has been reprocessed to:
- aggregate ERA5-Land hourly data to daily data (minimum, mean, maximum)
- while increasing the spatial resolution from the native ERA5-Land resolution of 0.1 degree (~ 9 km) to 30 arc-sec (~ 1 km) by image fusion with CHELSA data (V1.2) (https://chelsa-climate.org/).
For each day we used the corresponding monthly long-term average of CHELSA. The aim was to use the fine spatial detail of CHELSA and at the same time preserve the general regional pattern and fine temporal detail of ERA5-Land. The steps included aggregation and enhancement, specifically:
1. spatially aggregate CHELSA to the resolution of ERA5-Land
2. calculate difference of ERA5-Land - aggregated CHELSA
3. interpolate differences with a Gaussian filter to 30 arc seconds
4. add the interpolated differences to CHELSA
Data available is the daily average, minimum and maximum of surface temperature.
Software used:
GDAL 3.2.2 and GRASS GIS 8.0.0 (r.resamp.stats -w; r.relief)
Original ERA5-Land dataset license:
https://cds.climate.copernicus.eu/api/v2/terms/static/licence-to-use-copernicus-products.pdf
CHELSA climatologies (V1.2):
Data used: Karger D.N., Conrad, O., Böhner, J., Kawohl, T., Kreft, H., Soria-Auza, R.W., Zimmermann, N.E, Linder, H.P., Kessler, M. (2018): Data from: Climatologies at high resolution for the earth's land surface areas. Dryad digital repository. http://dx.doi.org/doi:10.5061/dryad.kd1d4
Original peer-reviewed publication: Karger, D.N., Conrad, O., Böhner, J., Kawohl, T., Kreft, H., Soria-Auza, R.W., Zimmermann, N.E., Linder, P., Kessler, M. (2017): Climatologies at high resolution for the Earth land surface areas. Scientific Data. 4 170122. https://doi.org/10.1038/sdata.2017.122
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Citation proposal
(2021) . ERA5-Land daily: Surface temperature (2000 - 2020). https://gdk.gdi-de.org/geonetwork/srv/api/records/a72f738b-6704-4d00-98d7-a83f61346560 |
- Identification
- Distribution
- Quality
- Spatial rep.
- Ref. system
- Content
- Portrayal
- Metadata
- Md. constraints
- Md. maintenance
- Schema info
Identification
Data identification
Citation
- Date ( Publication )
- 2021-10-26
- Identifier
- dataset
- Purpose
- Status
- On going
Point of contact
- Maintenance and update frequency
- As needed
- Keywords ( Theme )
-
- surface temperature
- Continents, countries, sea regions of the world. ( Place )
-
- Europe
- GEMET - INSPIRE themes, version 1.0 ( Theme )
-
- Meteorological geographical features
- Keywords ( Theme )
-
- MOOD-H2020
- Tularaemia
- Lyme
- TBE
- WNV
- USUTU
- Mosquito borne Flaviviruses
Legal constraints
- Use limitation
- Licence to Use Copernicus Products
- Access constraints
- Other restrictions
- Use constraints
- Intellectual property rights
- Other constraints
- Licence to Use Copernicus Products (Version 1.2, Nov. 2019): "All users of Copernicus Products must provide clear and visible attribution to the Copernicus programme. The Licensee will communicate to the public the source of the Copernicus Products by crediting the Copernicus Climate Change and Atmosphere Monitoring Services" (full licence available here: https://cds.climate.copernicus.eu/api/v2/terms/static/licence-to-use-copernicus-products.pdf
- Other constraints
- { "id": "other-open", "name": "Licence to Use Copernicus Products", "url": "https://ads.atmosphere.copernicus.eu/api/v2/terms/static/licence-to-use-copernicus-products.pdf", "quelle": "Source: Copernicus Programme" }
Aggregate Information
- Aggregate Datasetindentifier
- 601ea08c-0768-4af3-a8fa-7da25fb9125b
- Association Type
- Source
Aggregate Information
- Aggregate Datasetindentifier
- a98fa2dd-6787-4eeb-b51a-ab4c9ae731be
- Association Type
- Cross reference
- Spatial representation type
- Grid
- Distance
- 1 km
- Metadata language
- English
- Character set
- UTF8
- Topic category
-
- Environment
- Geoscientific information
- Health
- Climatology, meteorology, atmosphere
Extent
- Description
- Europe
![](https://gdk.gdi-de.org/geonetwork/srv//eng/region.getmap.png?mapsrs=EPSG:3857&width=500&background=osm&geomsrs=EPSG:4326&geom=POLYGON((49 30,49 72,-52 72,-52 30,49 30)))
Distribution
Distribution
- Distribution format
-
- GeoTIFF ( )
- OnLine resource
- available upon request
Quality
Data quality
- Hierarchy level
- Dataset
Conformance result
Citation
- Date ( Publication )
- 2010-12-08
- Other citation details
- http://data.europa.eu/eli/reg/2010/1089/2014-12-31
- Explanation
- See specified reference
- Pass
- true
Lineage
- Statement
- Dataset has been processed from original Copernicus Climate Data Store (ERA5-Land) data sources. As auxiliary data CHELSA climate data has been used.
Process step
Ref. system
- Reference system identifier
- EPSG / WGS 84 (EPSG:4326) / 8.6
Metadata
Metadata
- File identifier
- a72f738b-6704-4d00-98d7-a83f61346560 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2023-12-15T13:39:41
- Metadata standard name
- ISO 19115:2003/19139
- Metadata standard version
- 1.0
Point of contact
Overviews
![](https://data.mundialis.de:/geonetwork/srv/api/records/a72f738b-6704-4d00-98d7-a83f61346560/attachments/ERA5_daily_ts.png)
Provided by
![](https://gdk.gdi-de.org/geonetwork/srv/../images/logos/3e18aa30-2e3e-44f1-83bf-d9a6e08672fc.png)