ERA5 daily downscaled surface air temperature and snowfall at two Cordillera Darwin high elevation sites 2000 - 2022 CE

This dataset presents ERA5 daily downscaled surface air temperature and snowfall from two sites next to the first ice core drilled from Cordillera Darwin, Chile. These records were presented in Tetzner et al. (2025) to study regional-to-local environmental conditions at the firn core site. These local surface air temperature and snowfall estimations suggest the icefield has been progressively exposed to surface melt conditions, but not enough to produce significant melt at the firn core site.

This dataset was created with the support of the Dieter R Tetzner's National Geographic Early Career Grant 2019.

Date (Creation): 2025-05-02

Date (Revision): 2025-05-02

Date (Publication): 2025-05-02

Date (released): 2025-05-02

Edition: 1.0

Unique resource identifier: https://doi.org/10.5285/eddc907c-f8e9-48c4-9f23-de0f674dbee0

Codespace: doi

Unique resource identifier: GB/NERC/BAS/PDC/02054

Codespace: https://data.bas.ac.uk/

Other citation details: Please cite this item as: Tetzner, D., Temme, F., & Furst, J. (2025). ERA5 daily downscaled surface air temperature and snowfall at two Cordillera Darwin high elevation sites 2000 - 2022 CE (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/eddc907c-f8e9-48c4-9f23-de0f674dbee0

Credit: No credit.

Status: Completed

Point of contact

Organisation name	Individual name	Electronic mail address	Role
British Antarctic Survey	Tetzner, Dieter		Author
Friedrich-Alexander-Universitat Erlangen-Nurnberg	Temme, Franziska		Author
Friedrich-Alexander-Universitat Erlangen-Nurnberg	Furst, Johannes		Author
NERC EDS UK Polar Data Centre		PDCServiceDesk@bas.ac.uk	Point of contact

Maintenance and update frequency: As needed

Maintenance note: Completed

Global Change Master Directory (GCMD) Science Keywords

Theme

Cordillera Darwin
ERA5
downscaled
snowfall
surface air temperature

Place

Cordillera Darwin - Cresta Blanca Chile

GEMET - INSPIRE themes, version 1.0

Atmospheric conditions

Access constraints: Other restrictions

Other constraints: no limitations to public access

Access constraints: Other restrictions

Other constraints: no limitations

Use constraints: License

Other constraints: Open Government Licence v3.0

Use constraints: Other restrictions

Other constraints: Data supplied under Open Government Licence v3.0

Use constraints: Other restrictions

Other constraints: None

Unique resource identifier: url

Codespace: url

Association Type: Cross reference

Unique resource identifier: doi

Codespace: doi

Association Type: Cross reference

Unique resource identifier: doi

Codespace: doi

Association Type: Cross reference

Unique resource identifier: url

Codespace: url

Association Type: Larger work citation

Spatial representation type: Text, table

Language: English

Character set: UTF8

Topic category

Climatology, meteorology, atmosphere

Begin date: 2000-01-01

End date: 2022-01-01

Vertical extent

Minimum value: 2195.0

Maximum value: 2195.0

Vertical CS

No information provided.

Vertical datum

No information provided.

Supplemental Information: It is recommended that careful attention be paid to the contents of any data, and that the author be contacted with any questions regarding appropriate use. If you find any errors or omissions, please report them to polardatacentre@bas.ac.uk.

Title: European Petroleum Survey Group (EPSG) Geodetic Parameter Registry

Date (Publication): 2008-11-12

Cited responsible party

Organisation name	Individual name	Electronic mail address	Role
European Petroleum Survey Group		EPSGadministrator@iogp.org	Publisher

Unique resource identifier: urn:ogc:def:crs:EPSG::3031

Version: 6.18.3

Distributor

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
NERC EDS UK Polar Data Centre		PDCServiceDesk@bas.ac.uk	Distributor

Distributor format

Name	Version
text/plain
text/csv

Units of distribution: bytes

Transfer size: 372736

OnLine resource

Protocol	Linkage	Name
WWW:LINK-1.0-http--link	http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=eddc907c-f8e9-48c4-9f23-de0f674dbee0	Get Data

Units of distribution: bytes

Transfer size: 372736

OnLine resource

Protocol	Linkage	Name
WWW:LINK-1.0-http--link	http://ramadda.data.bas.ac.uk/repository/entry/show?entryid=eddc907c-f8e9-48c4-9f23-de0f674dbee0	Get Data

Hierarchy level: Dataset

Statement: Methodology:

The downscaling scheme (DOWN) combined statistical downscaling with radiation and orographic precipitation modelling and was applied to ERA5 atmospheric parameters to produce high spatial resolution (200x200m grid cell) climate variables for the CDB site (DOWN-DRILL). The use of this downscaling routine to generate high spatial resolution climate variables was thoroughly implemented and validated in the Cordillera Darwin Region in Temme et al. (2023). Data used in this study was generated with the same inputs as detailed in Temme et al. (2023).Temme, F., Farias-Barahona, D., Seehaus, T., Jana, R., Arigony-Neto, J., Gonzalez, I. & Furst, J. J. (2023). Strategies for regional modeling of surface mass balance at the Monte Sarmiento Massif, Tierra del Fuego. The Cryosphere, 17(6), 2343-2365.

Data collection:

The dataset was generated using Temme et al. (2023) ERA5 downscaling method. Temme, F., Farias-Barahona, D., Seehaus, T., Jana, R., Arigony-Neto, J., Gonzalez, I. & Furst, J. J. (2023). Strategies for regional modeling of surface mass balance at the Monte Sarmiento Massif, Tierra del Fuego. The Cryosphere, 17(6), 2343-2365.

Data quality:

The ERA5 daily downscaled dataset was generated following the downscaling method presented in Temme et al. (2025). Temme, F., Sommer, C., Schaefer, M., Jana, R., Arigony-Neto, J., Gonzalez, I., ... & Furst, J. J. (2025). Climate's firm grip on glacier ablation in the Cordillera Darwin Icefield, Tierra del Fuego. Nature Communications, 16(1), 2677.

Metadata

File identifier: eddc907c-f8e9-48c4-9f23-de0f674dbee0 XML

Metadata language: English

Character set: UTF8

Hierarchy level: Dataset

Hierarchy level name: dataset

Date stamp: 2025-05-02

Metadata standard name: ISO 19115 Geographic Information - Metadata

Metadata standard version: ISO 19115:2003(E)

Metadata author

Organisation name	Individual name	Electronic mail address	Role
NERC EDS UK Polar Data Centre		polardatacentre@bas.ac.uk	Point of contact

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