Universität zu Köln

Trauth, Martin H., Foerster, Verena, Junginger, Annett ORCID: 0000-0003-3486-0888, Asrat, Asfawossen, Lamb, Henry F. and Schaebitz, Frank ORCID: 0000-0003-3879-9308 (2018). Abrupt or gradual? Change point analysis of the late Pleistocene-Holocene climate record from Chew Bahir, southern Ethiopia. Quat. Res., 90 (2). S. 321 - 331. NEW YORK: CAMBRIDGE UNIV PRESS. ISSN 1096-0287

Full text not available from this repository.

Abstract

We used a change point analysis on a late Pleistocene-Holocene lake-sediment record from the Chew Bahir basin in the southern Ethiopian Rift to determine the amplitude and duration of past climate transitions. The most dramatic changes occurred over 240 yr (from similar to 15,700 to 15,460 yr) during the onset of the African Humid Period (AHP), and over 990 yr (from similar to 4875 to 3885 yr) during its protracted termination. The AHP was interrupted by a distinct dry period coinciding with the high-latitude Younger Dryas stadial, which had an abrupt onset (less than similar to 100 yr) at similar to 13,260 yr and lasted until similar to 11,730 yr. Wet-dry-wet transitions prior to the AHP may reflect the high-latitude Dansgaard-Oeschger cycles, as indicated by cross-correlation of the potassium record with the NorthGRIP ice core record between similar to 45-20 ka. These findings may contribute to the debates regarding the amplitude, and duration and mechanisms of past climate transitions, and their possible influence on the development of early modern human cultures.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Trauth, Martin H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Foerster, Verena UNSPECIFIED UNSPECIFIED UNSPECIFIED Junginger, Annett UNSPECIFIED orcid.org/0000-0003-3486-0888 UNSPECIFIED Asrat, Asfawossen UNSPECIFIED UNSPECIFIED UNSPECIFIED Lamb, Henry F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schaebitz, Frank UNSPECIFIED orcid.org/0000-0003-3879-9308 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-174212
DOI:	10.1017/qua.2018.30
Journal or Publication Title:	Quat. Res.
Volume:	90
Number:	2
Page Range:	S. 321 - 331
Date:	2018
Publisher:	CAMBRIDGE UNIV PRESS
Place of Publication:	NEW YORK
ISSN:	1096-0287
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language AFRICAN HUMID PERIOD; LAST GLACIAL MAXIMUM; WORD RECOGNITION; EASTERN AFRICA; NORTHERN KENYA; LAKE TANA; OCCUPATION; RIFT; AGE; BP Multiple languages Geography, Physical; Geosciences, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/17421