Abstract:
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.
Keywords:
Cordillera Darwin, ERA5, downscaled, snowfall, surface air temperature
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
| Access Constraints: | None |
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| Use Constraints: | Data supplied under Open Government Licence v3.0 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. |
| Creation Date: | 2025-05-02 |
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| Dataset Progress: | Complete |
| Dataset Language: | English |
| ISO Topic Categories: |
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| Parameters: |
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| Personnel: | |
| Name | UK PDC |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Dieter Tetzner |
| Role(s) | Investigator, Technical Contact |
| Organisation | British Antarctic Survey |
| Name | Franziska Temme |
| Role(s) | Investigator |
| Organisation | Friedrich-Alexander-Universitat Erlangen-Nurnberg |
| Name | Johannes J Furst |
| Role(s) | Investigator |
| Organisation | Friedrich-Alexander-Universitat Erlangen-Nurnberg |
| Name | Elizabeth R Thomas |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Name | Claire Allen |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Name | Robert D McCulloch |
| Role(s) | Investigator |
| Organisation | University of Edinburgh |
| Name | Dr Bianca Perren |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Name | Amy McGuire |
| Role(s) | Investigator |
| Organisation | University of Leeds |
| Name | Delia Segato |
| Role(s) | Investigator |
| Organisation | CNR-Institute of Polar Sciences |
| Name | Dorothea E Moser |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Name | Francisco Fernandoy |
| Role(s) | Investigator |
| Organisation | Universidad Andres Bello |
| Name | Camilo Rada |
| Role(s) | Investigator |
| Organisation | Universidad de Magallanes |
| Name | Jack Humby |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Name | Shaun Miller |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Parent Dataset: | N/A |
| Reference: | Please cite the paper and data DOI when using this database. Tetzner, D. R.; Thomas, E. R.; Allen, C. S., McCulloch, R. D., Perren B. B., McGuire A., Segato D., Temme F., F�rst J. J., Moser D., Fernandoy F., Rada C., Humby J., Miller S. (2025). The first firn core from the Cordillera Darwin Icefield: implications for future ice core research. JGR Atmospheres. | |
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| 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. | |
| Lineage: | 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. | |
| Temporal Coverage: | |
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| Start Date | 2000-01-01 |
| End Date | 2022-01-01 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | -54.68 |
| Northernmost | -54.68 |
| Longitude | |
| Westernmost | -69.64 |
| Easternmost | -69.64 |
| Altitude | |
| Min Altitude | 2195 |
| Max Altitude | 2195 |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Latitude | |
| Southernmost | -54.68 |
| Northernmost | -54.68 |
| Longitude | |
| Westernmost | -69.63 |
| Easternmost | -69.63 |
| Altitude | |
| Min Altitude | 2018 |
| Max Altitude | 2018 |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Location: | |
| Location | Chile |
| Detailed Location | Cordillera Darwin - Cresta Blanca |
| 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. |
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| Distribution: | |
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| Distribution Media | Online Internet (HTTP) |
| Distribution Size | 364 kB |
| Distribution Format | ASCII |
| Fees | N/A |
| Data Storage: | 3 x CSV files |