Brief communication: Significant biases in ERA5 output for the McMurdo Dry Valleys region, Antarctica
<p>The ERA5 climate reanalysis dataset plays an important role in applications such as monitoring and modeling climate system changes in polar regions, so the calibration of the reanalysis to ground observations is of great relevance. Here, we compare the 2 m air temperature time series of the...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2024-03-01
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| Series: | The Cryosphere |
| Online Access: | https://tc.copernicus.org/articles/18/1207/2024/tc-18-1207-2024.pdf |
| _version_ | 1797265193001025536 |
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| author | R. Garza-Girón R. Garza-Girón S. M. Tulaczyk |
| author_facet | R. Garza-Girón R. Garza-Girón S. M. Tulaczyk |
| author_sort | R. Garza-Girón |
| collection | DOAJ |
| description | <p>The ERA5 climate reanalysis dataset plays an important role in applications such as monitoring and modeling climate system changes in polar regions, so the calibration of the reanalysis to ground observations is of great relevance. Here, we compare the 2 m air temperature time series of the ERA5 reanalysis and the near-surface bias-corrected reanalysis to the near-ground air temperature measured at 17 automatic weather stations (AWSs) in the McMurdo Dry Valleys, Antarctica. We find that the reanalysis data have biases that change with the season of the year and do not clearly correlate with elevation. Our results show that future work should rely on secondary observations to calibrate when using the ERA5 reanalysis in polar regions.</p> |
| first_indexed | 2024-04-25T00:40:54Z |
| format | Article |
| id | doaj.art-870ba930db644b62aed3b46dffbc8343 |
| institution | Directory Open Access Journal |
| issn | 1994-0416 1994-0424 |
| language | English |
| last_indexed | 2024-04-25T00:40:54Z |
| publishDate | 2024-03-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | The Cryosphere |
| spelling | doaj.art-870ba930db644b62aed3b46dffbc83432024-03-12T09:59:23ZengCopernicus PublicationsThe Cryosphere1994-04161994-04242024-03-01181207121310.5194/tc-18-1207-2024Brief communication: Significant biases in ERA5 output for the McMurdo Dry Valleys region, AntarcticaR. Garza-Girón0R. Garza-Girón1S. M. Tulaczyk2Department of Earth and Planetary Sciences, University of California, Santa Cruz, CA 95064, USADepartment of Geosciences, Warner College of Natural Resources, Colorado State University, Fort Collins, CO 80523, USADepartment of Earth and Planetary Sciences, University of California, Santa Cruz, CA 95064, USA<p>The ERA5 climate reanalysis dataset plays an important role in applications such as monitoring and modeling climate system changes in polar regions, so the calibration of the reanalysis to ground observations is of great relevance. Here, we compare the 2 m air temperature time series of the ERA5 reanalysis and the near-surface bias-corrected reanalysis to the near-ground air temperature measured at 17 automatic weather stations (AWSs) in the McMurdo Dry Valleys, Antarctica. We find that the reanalysis data have biases that change with the season of the year and do not clearly correlate with elevation. Our results show that future work should rely on secondary observations to calibrate when using the ERA5 reanalysis in polar regions.</p>https://tc.copernicus.org/articles/18/1207/2024/tc-18-1207-2024.pdf |
| spellingShingle | R. Garza-Girón R. Garza-Girón S. M. Tulaczyk Brief communication: Significant biases in ERA5 output for the McMurdo Dry Valleys region, Antarctica The Cryosphere |
| title | Brief communication: Significant biases in ERA5 output for the McMurdo Dry Valleys region, Antarctica |
| title_full | Brief communication: Significant biases in ERA5 output for the McMurdo Dry Valleys region, Antarctica |
| title_fullStr | Brief communication: Significant biases in ERA5 output for the McMurdo Dry Valleys region, Antarctica |
| title_full_unstemmed | Brief communication: Significant biases in ERA5 output for the McMurdo Dry Valleys region, Antarctica |
| title_short | Brief communication: Significant biases in ERA5 output for the McMurdo Dry Valleys region, Antarctica |
| title_sort | brief communication significant biases in era5 output for the mcmurdo dry valleys region antarctica |
| url | https://tc.copernicus.org/articles/18/1207/2024/tc-18-1207-2024.pdf |
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