The Dominant Role of Extreme Precipitation Events in Antarctic Snowfall Variability
Antarctic snowfall consists of frequent clear-sky precipitation and heavier falls from intrusions of maritime airmasses associated with amplified planetary waves. We investigate the importance of different precipitation events using the output of the RACMO2 model. Extreme precipitation events consis...
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ftunivutrecht:oai:dspace.library.uu.nl:1874/391057 2023-12-03T10:09:15+01:00 The Dominant Role of Extreme Precipitation Events in Antarctic Snowfall Variability Turner, John Phillips, Tony Thamban, Meloth Rahaman, Waliur Marshall, Gareth J. Wille, Jonathan D. Favier, Vincent Winton, V. Holly L. Thomas, Elizabeth Wang, Zaomin van den Broeke, Michiel Hosking, J. Scott Lachlan-Cope, Tom Sub Dynamics Meteorology Marine and Atmospheric Research 2019-03-28 image/pdf https://dspace.library.uu.nl/handle/1874/391057 en eng 0094-8276 https://dspace.library.uu.nl/handle/1874/391057 info:eu-repo/semantics/OpenAccess Antarctica extremes precipitation snowfall variability Article 2019 ftunivutrecht 2023-11-08T23:16:55Z Antarctic snowfall consists of frequent clear-sky precipitation and heavier falls from intrusions of maritime airmasses associated with amplified planetary waves. We investigate the importance of different precipitation events using the output of the RACMO2 model. Extreme precipitation events consisting of the largest 10% of daily totals are shown to contribute more than 40% of the total annual precipitation across much of the continent, with some areas receiving in excess of 60% of the total from these events. The greatest contribution of extreme precipitation events to the annual total is in the coastal areas and especially on the ice shelves, with the Amery Ice Shelf receiving 50% of its annual precipitation in less than the 10 days of heaviest precipitation. For the continent as a whole, 70% of the variance of the annual precipitation is explained by variability in precipitation from extreme precipitation events, with this figure rising to over 90% in some areas. Article in Journal/Newspaper Amery Ice Shelf Antarc* Antarctic Antarctica Ice Shelf Ice Shelves Utrecht University Repository Amery ENVELOPE(-94.063,-94.063,56.565,56.565) Amery Ice Shelf ENVELOPE(71.000,71.000,-69.750,-69.750) Antarctic |
institution |
Open Polar |
collection |
Utrecht University Repository |
op_collection_id |
ftunivutrecht |
language |
English |
topic |
Antarctica extremes precipitation snowfall variability |
spellingShingle |
Antarctica extremes precipitation snowfall variability Turner, John Phillips, Tony Thamban, Meloth Rahaman, Waliur Marshall, Gareth J. Wille, Jonathan D. Favier, Vincent Winton, V. Holly L. Thomas, Elizabeth Wang, Zaomin van den Broeke, Michiel Hosking, J. Scott Lachlan-Cope, Tom The Dominant Role of Extreme Precipitation Events in Antarctic Snowfall Variability |
topic_facet |
Antarctica extremes precipitation snowfall variability |
description |
Antarctic snowfall consists of frequent clear-sky precipitation and heavier falls from intrusions of maritime airmasses associated with amplified planetary waves. We investigate the importance of different precipitation events using the output of the RACMO2 model. Extreme precipitation events consisting of the largest 10% of daily totals are shown to contribute more than 40% of the total annual precipitation across much of the continent, with some areas receiving in excess of 60% of the total from these events. The greatest contribution of extreme precipitation events to the annual total is in the coastal areas and especially on the ice shelves, with the Amery Ice Shelf receiving 50% of its annual precipitation in less than the 10 days of heaviest precipitation. For the continent as a whole, 70% of the variance of the annual precipitation is explained by variability in precipitation from extreme precipitation events, with this figure rising to over 90% in some areas. |
author2 |
Sub Dynamics Meteorology Marine and Atmospheric Research |
format |
Article in Journal/Newspaper |
author |
Turner, John Phillips, Tony Thamban, Meloth Rahaman, Waliur Marshall, Gareth J. Wille, Jonathan D. Favier, Vincent Winton, V. Holly L. Thomas, Elizabeth Wang, Zaomin van den Broeke, Michiel Hosking, J. Scott Lachlan-Cope, Tom |
author_facet |
Turner, John Phillips, Tony Thamban, Meloth Rahaman, Waliur Marshall, Gareth J. Wille, Jonathan D. Favier, Vincent Winton, V. Holly L. Thomas, Elizabeth Wang, Zaomin van den Broeke, Michiel Hosking, J. Scott Lachlan-Cope, Tom |
author_sort |
Turner, John |
title |
The Dominant Role of Extreme Precipitation Events in Antarctic Snowfall Variability |
title_short |
The Dominant Role of Extreme Precipitation Events in Antarctic Snowfall Variability |
title_full |
The Dominant Role of Extreme Precipitation Events in Antarctic Snowfall Variability |
title_fullStr |
The Dominant Role of Extreme Precipitation Events in Antarctic Snowfall Variability |
title_full_unstemmed |
The Dominant Role of Extreme Precipitation Events in Antarctic Snowfall Variability |
title_sort |
dominant role of extreme precipitation events in antarctic snowfall variability |
publishDate |
2019 |
url |
https://dspace.library.uu.nl/handle/1874/391057 |
long_lat |
ENVELOPE(-94.063,-94.063,56.565,56.565) ENVELOPE(71.000,71.000,-69.750,-69.750) |
geographic |
Amery Amery Ice Shelf Antarctic |
geographic_facet |
Amery Amery Ice Shelf Antarctic |
genre |
Amery Ice Shelf Antarc* Antarctic Antarctica Ice Shelf Ice Shelves |
genre_facet |
Amery Ice Shelf Antarc* Antarctic Antarctica Ice Shelf Ice Shelves |
op_relation |
0094-8276 https://dspace.library.uu.nl/handle/1874/391057 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1784262756517543936 |