Sano, Masaki and Sheshshayee, MS and Managave, S and Ramesh, R and Sukumar, R and Sweda, Tatsuo (2010) Climatic potential of delta O-18 of Abies spectabilis from the Nepal Himalaya. In: Dendrochronologia, 28 (2). pp. 93-98.
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Abstract
A 50-year tree-ring delta O-18 chronology of Abies spectabilis growing close to the tree line (3850 m asl) in the Nepal Himalaya is established to explore its dendroclimatic potential. Response function analysis with ambient climatic records revealed that tree-ring delta O-18 is primarily governed by rainfall during the monsoon season (June September), and the regression model accounts for 35% of the variance in rainfall. Extreme dry years identified in instrumental weather data are detected in the delta O-18 chronology. Further, tree-ring delta O-18 is much more sensitive to rainfall fluctuations than other tree-ring parameters such as width and density typically used in dendroclimatology. Correlation analyses with Nino 3.4 SST reveal time-dependent behavior of ENSO-monsoon relationships. (C) 2009 Elsevier GmbH. All rights reserved.
Item Type: | Journal Article |
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Publication: | Dendrochronologia |
Publisher: | Elsevier Science |
Additional Information: | Copyright of this article belongs to Elsevier Science. |
Keywords: | Isotope dendroclimatology; Monsoon; ENSO |
Department/Centre: | Division of Biological Sciences > Centre for Ecological Sciences |
Date Deposited: | 02 Jun 2010 05:14 |
Last Modified: | 19 Sep 2010 06:07 |
URI: | http://eprints.iisc.ac.in/id/eprint/28059 |
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