Arid
DOI10.1016/j.quaint.2005.01.001
Simulation of the Holocene climate evolution in Northern Africa: The termination of the African Humid Period
Renssen, H.; Brovkin, V.; Fichefet, T.; Goosse, H.
通讯作者Renssen, H.
来源期刊QUATERNARY INTERNATIONAL
ISSN1040-6182
出版年2006
卷号150页码:95-102
英文摘要

The Holocene climate evolution in Northern Africa is studied in a 9000-yr-long transient simulation with a coupled atmosphere-ocean-vegetation model forced by changes in insolation and atmospheric greenhouse gas concentrations. The model simulates in the monsoonal domains a significant decrease in precipitation under influence of the orbitally forced reduction in summer insolation. In the Western Sahara region, the simulated mid-Holocene transition from humid to arid conditions (the termination of the African Humid Period) is highly non-linear with the occurrence of centennial-scale climate fluctuations due to the biogeophysical feedback between precipitation and vegetation cover. This result is in agreement with proxy data from the Western Sahara region. The other monsoonal regions experience a more gradual climate evolution that linearly follows the insolation forcing, which appears in disagreement with available lake level records. (c) 2006 Elsevier Ltd and INQUA. All rights reserved.


类型Article ; Proceedings Paper
语种英语
国家Netherlands ; Germany ; Belgium
收录类别SCI-E ; CPCI-S
WOS记录号WOS:000238405700010
WOS关键词OCEAN-VEGETATION MODEL ; GLACIAL-MAXIMUM ; KYR BP ; INSOLATION ; MIDHOLOCENE ; VARIABILITY ; MONSOON ; CIRCULATION ; HEMISPHERE ; LATITUDES
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向Physical Geography ; Geology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/152859
作者单位(1)Vrije Univ Amsterdam, Fac Earth & Life Sci, NL-1081 HV Amsterdam, Netherlands;(2)Potsdam Inst Klimafolgenforsch, D-14412 Potsdam, Germany;(3)Catholic Univ Louvain, Inst Astron & Geophys Georges Lemaitre, B-1348 Louvain, Belgium
推荐引用方式
GB/T 7714
Renssen, H.,Brovkin, V.,Fichefet, T.,et al. Simulation of the Holocene climate evolution in Northern Africa: The termination of the African Humid Period[J],2006,150:95-102.
APA Renssen, H.,Brovkin, V.,Fichefet, T.,&Goosse, H..(2006).Simulation of the Holocene climate evolution in Northern Africa: The termination of the African Humid Period.QUATERNARY INTERNATIONAL,150,95-102.
MLA Renssen, H.,et al."Simulation of the Holocene climate evolution in Northern Africa: The termination of the African Humid Period".QUATERNARY INTERNATIONAL 150(2006):95-102.
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