Universität zu Köln

Ludwig, Patrick ORCID: 0000-0003-3655-7890, Pinto, Joaquim G., Raible, Christoph C. and Shao, Yaping ORCID: 0000-0002-2041-5479 (2017). Impacts of surface boundary conditions on regional climate model simulations of European climate during the Last Glacial Maximum. Geophys. Res. Lett., 44 (10). S. 5086 - 5096. WASHINGTON: AMER GEOPHYSICAL UNION. ISSN 1944-8007

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Abstract

We examine the influences of North Atlantic sea surface temperatures (SSTs) and vegetation on regional climate simulations over Europe during the Last Glacial Maximum (LGM). Simulated regional temperature and precipitation patterns over Europe are considerably improved when using revised SSTs based on proxy data. Likewise, the simulated permafrost is more accurately reproduced with the SST modifications. These improvements are partially related to the changed regional atmospheric circulation due to the revised SSTs, leading to colder and drier conditions over Western Europe. Further sensitivity tests with prescribed vegetation for LGM conditions provide evidence of the sensitivity of the simulated glacial climate. This study reveals the importance of considering more realistic SST and vegetation boundary conditions for a more accurate representation of regional climate variability under glacial conditions.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Ludwig, Patrick UNSPECIFIED orcid.org/0000-0003-3655-7890 UNSPECIFIED Pinto, Joaquim G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Raible, Christoph C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Shao, Yaping UNSPECIFIED orcid.org/0000-0002-2041-5479 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-230688
DOI:	10.1002/2017GL073622
Journal or Publication Title:	Geophys. Res. Lett.
Volume:	44
Number:	10
Page Range:	S. 5086 - 5096
Date:	2017
Publisher:	AMER GEOPHYSICAL UNION
Place of Publication:	WASHINGTON
ISSN:	1944-8007
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Geosciences > Institute for Geophysics and Meteorology
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language NORTH-ATLANTIC; PARAMETERIZATION; RECONSTRUCTION; TEMPERATURES; CIRCULATION; DYNAMICS; CORDEX Multiple languages Geosciences, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/23068