BROWSE

Related Scientist

Researcher

Axel Timmermann
기후물리 연구단
more info

Antarctic iceberg impacts on future Southern Hemisphere climate

Cited 0 time in webofscience Cited 0 time in scopus
11 Viewed 5 Downloaded
Title
Antarctic iceberg impacts on future Southern Hemisphere climate
Author(s)
Schloesser F.; Friedrich T.; Timmermann A.; DeConto R.M.; Pollard D.
Publication Date
2019-09
Journal
NATURE CLIMATE CHANGE, v.9, no., pp.672 - 677
Publisher
NATURE PUBLISHING GROUP
Abstract
© 2019, The Author(s), under exclusive licence to Springer Nature Limited.Future iceberg and meltwater discharge from the Antarctic ice sheet (AIS) could substantially exceed present levels, with strong implications for future climate and sea levels. Recent climate model simulations on the impact of a rapid disintegration of the AIS on climate have applied idealized freshwater forcing scenarios1,2 rather than the more realistic iceberg forcing. Here we use a coupled climate–iceberg model to determine the climatic effects of combined iceberg latent heat of fusion and freshwater forcing. The iceberg forcing is derived from an ensemble of future simulations conducted using the Penn State ice-sheet model3. In agreement with previous studies, the simulated AIS meltwater forcing causes a substantial delay in greenhouse warming in the Southern Hemisphere and activates a transient positive feedback between surface freshening, subsurface warming and ice-sheet/shelf melting, which can last for about 100 years and may contribute to an accelerated ice loss around Antarctica. However, accounting further for the oceanic heat loss due to iceberg melting considerably increases the surface cooling effect and reduces the subsurface temperature feedback amplitude. Our findings document the importance of considering realistic climate–ice sheet–iceberg coupling for future climate and sea-level projections
URI
https://pr.ibs.re.kr/handle/8788114/6268
ISSN
1758-678X
Appears in Collections:
Center for Climate Physics(기후물리 연구단) > Journal Papers (저널 논문)
Files in This Item:
23. Antarctic iceberg impacts on future Southern Hemisphere Climate.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse