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Chir Pine Ring-Width Thermometry in Western Himalaya, India


Affiliations
1 Wadia Institute of Himalayan Geology, 33 General Mahadeo Singh Road, Dehra Dun 248 001, India
2 Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow 226 007, India
 

We have developed the first annually resolved ringwidth chronology (AD 1880-2002) of chir pine (Pinus roxburghii) from Balcha in Tons valley, western Himalaya. The existence of significant positive relationship between ring-width indices and June-August mean temperature obtained in cross-correlation analysis endorsed the dendroclimatic potential of chir pine chronologies. Using such strong relationship, statistically verifiable first chir pine chronology-based June-August temperature (AD 1880-2001) was reconstructed for the western Himalaya. The calibration model capturing 16% of the variance in instrumental data (AD 1901-1998) showed that the network of such chronologies should help in developing robust temperature records for the western Himalaya.

Keywords

Dendroclimatic Potential, Pinus roxburghii, Ring-Width Chronology, Summer Temperature.
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  • Chir Pine Ring-Width Thermometry in Western Himalaya, India

Abstract Views: 274  |  PDF Views: 157

Authors

Jayendra Singh
Wadia Institute of Himalayan Geology, 33 General Mahadeo Singh Road, Dehra Dun 248 001, India
Ram R. Yadav
Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow 226 007, India

Abstract


We have developed the first annually resolved ringwidth chronology (AD 1880-2002) of chir pine (Pinus roxburghii) from Balcha in Tons valley, western Himalaya. The existence of significant positive relationship between ring-width indices and June-August mean temperature obtained in cross-correlation analysis endorsed the dendroclimatic potential of chir pine chronologies. Using such strong relationship, statistically verifiable first chir pine chronology-based June-August temperature (AD 1880-2001) was reconstructed for the western Himalaya. The calibration model capturing 16% of the variance in instrumental data (AD 1901-1998) showed that the network of such chronologies should help in developing robust temperature records for the western Himalaya.

Keywords


Dendroclimatic Potential, Pinus roxburghii, Ring-Width Chronology, Summer Temperature.



DOI: https://doi.org/10.18520/cs%2Fv106%2Fi5%2F735-738