June Sun and August Storms are Accelerating Sea-Ice Loss in the New Arctic ...
<!--!introduction!--> Synoptic-scale cyclones in the Arctic are an important source of short-term sea-ice variability during the melt season. This study examines whether recent changes to the Arctic environment have made Arctic cyclones during the summer months more destructive to sea ice on s...
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| Format: | Conference Object |
| Language: | unknown |
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GFZ German Research Centre for Geosciences
2023
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| Online Access: | https://dx.doi.org/10.57757/iugg23-2806 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5019092 |
| Summary: | <!--!introduction!--> Synoptic-scale cyclones in the Arctic are an important source of short-term sea-ice variability during the melt season. This study examines whether recent changes to the Arctic environment have made Arctic cyclones during the summer months more destructive to sea ice on short time scales. We compare the 1-7 day changes in sea-ice area and thickness following days in each month with and without cyclones from two decades: 1991-2000 and 2009-2018. Of the three months examined (June-August), only August cyclones locally accelerate seasonal sea-ice loss on average, and the ability of August cyclones to accelerate ice loss has become more pronounced in the recent decade. The recent increase in ice loss following August cyclones is most evident in the Amerasian Arctic (140ºE-120ºW), where reanalyses indicate that the average upper-ocean temperature has increased by 0.2-0.8ºC and the average ice thickness has decreased by almost 1 m between the two decades. Such changes promote ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... |
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