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Paleoclimatic data from 74KL and Guliya cores:New insights

Rangarajan, Govindan and Sant, Dhanajay A (2000) Paleoclimatic data from 74KL and Guliya cores:New insights. In: Geophysical Research Letters, 27 (6). pp. 787-790.


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We analyze multi-proxy climatic records from the 74KL marine core and compare it with the delta(18)O record from: the Guliya ice core. These records have important implications for the evolution of the Southwest Monsoon System. We observe three distinct climatic events (viz. 19 ka to 13.5 ka, 13.5 ka to 10 ka and 3.4 ka to present) from the last glacial:phase to the present. Even though the first two events:are well documented in the literature, our combined analysis of data from both the cores suggests alternative mechanisms which could have complemented and strengthened these-events. The third, most recent event (occurring between 3.4 ka to present) does not seem to have been well documented earlier. We propose a possible mechanism to explain this event. We identify representative elements which better capture the above events as compared to more commonly used elements.

Item Type: Journal Article
Publication: Geophysical Research Letters
Publisher: American Geophysical Union
Department/Centre: Division of Physical & Mathematical Sciences > Mathematics
Date Deposited: 20 Sep 2004
Last Modified: 19 Sep 2010 04:16
URI: http://eprints.iisc.ac.in/id/eprint/1821

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