A Daily 1-km Resolution Greenland Rainfall Climatology (1958–2020) From Statistical Downscaling of a Regional Atmospheric Climate Model
A daily, gridded 1-km rainfall climatology (1958–2020) for Greenland is presented, including the Greenland ice sheet (GrIS), the peripheral glaciers and ice caps (GIC), and ice-free tundra. It is obtained by statistically downscaling the 5.5 km output of the regional atmospheric climate model versio...
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ftunivutrecht:oai:dspace.library.uu.nl:1874/422980 2023-11-12T04:17:37+01:00 A Daily 1-km Resolution Greenland Rainfall Climatology (1958–2020) From Statistical Downscaling of a Regional Atmospheric Climate Model Huai, Baojuan van den Broeke, Michiel R. Reijmer, Carleen H. Noël, Brice Sub Dynamics Meteorology Marine and Atmospheric Research 2022-09-16 application/pdf https://dspace.library.uu.nl/handle/1874/422980 en eng 2169-897X https://dspace.library.uu.nl/handle/1874/422980 info:eu-repo/semantics/OpenAccess Greenland ice sheet peripheral glaciers and ice caps rainfall climatology regional climate model statistical downscaling tundra Taverne Geophysics Atmospheric Science Earth and Planetary Sciences (miscellaneous) Space and Planetary Science Article 2022 ftunivutrecht 2023-11-01T23:28:58Z A daily, gridded 1-km rainfall climatology (1958–2020) for Greenland is presented, including the Greenland ice sheet (GrIS), the peripheral glaciers and ice caps (GIC), and ice-free tundra. It is obtained by statistically downscaling the 5.5 km output of the regional atmospheric climate model version 2 to a resolution of 1 km, using the elevation dependence of snowfall fraction. Based on this new product, the average total annual rainfall in Greenland during 1958–2020 is estimated to be 111.4 ± 11.2 Gt/year, of which 28.6 ± 6.1 Gt/year falls on the GrIS, 11.4 ± 1.4 Gt/year on the GIC, and 71.4 ± 9.0 Gt/year on the tundra. The downscaled 1 km product better resolves especially the relatively small GIC, more than doubling (+124%) their rainfall compared to the 5.5 km product. The relatively warm southern regions of Greenland have the highest rainfall amounts, with annual values locally exceeding 1,000 mm. We confirm a significant positive trend in Greenland rainfall (>40 mm/decade), notably in the northwest and mainly due to an increase in rainfall fraction (>3.5%/decade) during July and August. For the whole of Greenland, during 1991–2020 the seasonal rainfall peak has shifted from July to August, with significant increases in September, which receives more rain than June. An analysis of rainfall fraction and near-surface temperature shows that local warming rates are a good predictor of recent rainfall changes. Article in Journal/Newspaper Greenland Ice Sheet Tundra Utrecht University Repository Greenland |
institution |
Open Polar |
collection |
Utrecht University Repository |
op_collection_id |
ftunivutrecht |
language |
English |
topic |
Greenland ice sheet peripheral glaciers and ice caps rainfall climatology regional climate model statistical downscaling tundra Taverne Geophysics Atmospheric Science Earth and Planetary Sciences (miscellaneous) Space and Planetary Science |
spellingShingle |
Greenland ice sheet peripheral glaciers and ice caps rainfall climatology regional climate model statistical downscaling tundra Taverne Geophysics Atmospheric Science Earth and Planetary Sciences (miscellaneous) Space and Planetary Science Huai, Baojuan van den Broeke, Michiel R. Reijmer, Carleen H. Noël, Brice A Daily 1-km Resolution Greenland Rainfall Climatology (1958–2020) From Statistical Downscaling of a Regional Atmospheric Climate Model |
topic_facet |
Greenland ice sheet peripheral glaciers and ice caps rainfall climatology regional climate model statistical downscaling tundra Taverne Geophysics Atmospheric Science Earth and Planetary Sciences (miscellaneous) Space and Planetary Science |
description |
A daily, gridded 1-km rainfall climatology (1958–2020) for Greenland is presented, including the Greenland ice sheet (GrIS), the peripheral glaciers and ice caps (GIC), and ice-free tundra. It is obtained by statistically downscaling the 5.5 km output of the regional atmospheric climate model version 2 to a resolution of 1 km, using the elevation dependence of snowfall fraction. Based on this new product, the average total annual rainfall in Greenland during 1958–2020 is estimated to be 111.4 ± 11.2 Gt/year, of which 28.6 ± 6.1 Gt/year falls on the GrIS, 11.4 ± 1.4 Gt/year on the GIC, and 71.4 ± 9.0 Gt/year on the tundra. The downscaled 1 km product better resolves especially the relatively small GIC, more than doubling (+124%) their rainfall compared to the 5.5 km product. The relatively warm southern regions of Greenland have the highest rainfall amounts, with annual values locally exceeding 1,000 mm. We confirm a significant positive trend in Greenland rainfall (>40 mm/decade), notably in the northwest and mainly due to an increase in rainfall fraction (>3.5%/decade) during July and August. For the whole of Greenland, during 1991–2020 the seasonal rainfall peak has shifted from July to August, with significant increases in September, which receives more rain than June. An analysis of rainfall fraction and near-surface temperature shows that local warming rates are a good predictor of recent rainfall changes. |
author2 |
Sub Dynamics Meteorology Marine and Atmospheric Research |
format |
Article in Journal/Newspaper |
author |
Huai, Baojuan van den Broeke, Michiel R. Reijmer, Carleen H. Noël, Brice |
author_facet |
Huai, Baojuan van den Broeke, Michiel R. Reijmer, Carleen H. Noël, Brice |
author_sort |
Huai, Baojuan |
title |
A Daily 1-km Resolution Greenland Rainfall Climatology (1958–2020) From Statistical Downscaling of a Regional Atmospheric Climate Model |
title_short |
A Daily 1-km Resolution Greenland Rainfall Climatology (1958–2020) From Statistical Downscaling of a Regional Atmospheric Climate Model |
title_full |
A Daily 1-km Resolution Greenland Rainfall Climatology (1958–2020) From Statistical Downscaling of a Regional Atmospheric Climate Model |
title_fullStr |
A Daily 1-km Resolution Greenland Rainfall Climatology (1958–2020) From Statistical Downscaling of a Regional Atmospheric Climate Model |
title_full_unstemmed |
A Daily 1-km Resolution Greenland Rainfall Climatology (1958–2020) From Statistical Downscaling of a Regional Atmospheric Climate Model |
title_sort |
daily 1-km resolution greenland rainfall climatology (1958–2020) from statistical downscaling of a regional atmospheric climate model |
publishDate |
2022 |
url |
https://dspace.library.uu.nl/handle/1874/422980 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet Tundra |
genre_facet |
Greenland Ice Sheet Tundra |
op_relation |
2169-897X https://dspace.library.uu.nl/handle/1874/422980 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782334439708164096 |