Monsoon variability in Himalayas under the condition of global warming
An ice core-drilling program was carried out at the accumulation area of Dasuopu glacier (28°23'N, 85°43'E, 7100m a.s.1.) in the central Himalayas in 1997. The ice core was analyzed continuously for stable isotopes (δ18O) and major ions throughout the core. Cycles indicated by δ18O, cation...
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総合地球環境学研究所
2003
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ftrihn:oai:chikyu.repo.nii.ac.jp:00000835 2023-05-15T16:38:49+02:00 Monsoon variability in Himalayas under the condition of global warming DUAN Keqin YAO Tandong 2003-11 application/pdf https://chikyu.repo.nii.ac.jp/?action=repository_uri&item_id=835 http://id.nii.ac.jp/1422/00000790/ https://chikyu.repo.nii.ac.jp/?action=repository_action_common_download&item_id=835&item_no=1&attribute_id=22&file_no=1 en eng 総合地球環境学研究所 https://chikyu.repo.nii.ac.jp/?action=repository_uri&item_id=835 http://id.nii.ac.jp/1422/00000790/ オアシス地域研究会報 = Project Report on an Oasis-region, 3(2), 67-79(2003-11) 1346-9355 https://chikyu.repo.nii.ac.jp/?action=repository_action_common_download&item_id=835&item_no=1&attribute_id=22&file_no=1 http://www.chikyu.ac.jp/oasis/ http://www.chikyu.ac.jp/ Others 2003 ftrihn 2022-12-25T10:15:04Z An ice core-drilling program was carried out at the accumulation area of Dasuopu glacier (28°23'N, 85°43'E, 7100m a.s.1.) in the central Himalayas in 1997. The ice core was analyzed continuously for stable isotopes (δ18O) and major ions throughout the core. Cycles indicated by δ18O, cations were identified and counted as seasonal fluctuations as annual increment from maximum to maximum values. Reconstructed 300・year annual net accumulation (water equivalent) from the core, with a good correlation to Indian monsoon, reflects a major precipitation trend in the central Himalayas. The accumulation trend, separated from the time series, shows a strong negative correlation to Northern Hemisphere temperature. Generally,as northern hemisphere temperature increases 0.1・C, the accumulation decreases about 80mm, reflecting monsoon rainfall in central Himalayas has decreased over the past decades in the condition of global warming. Other/Unknown Material ice core Research Institute for Humanity and Nature Repository Indian |
institution |
Open Polar |
collection |
Research Institute for Humanity and Nature Repository |
op_collection_id |
ftrihn |
language |
English |
description |
An ice core-drilling program was carried out at the accumulation area of Dasuopu glacier (28°23'N, 85°43'E, 7100m a.s.1.) in the central Himalayas in 1997. The ice core was analyzed continuously for stable isotopes (δ18O) and major ions throughout the core. Cycles indicated by δ18O, cations were identified and counted as seasonal fluctuations as annual increment from maximum to maximum values. Reconstructed 300・year annual net accumulation (water equivalent) from the core, with a good correlation to Indian monsoon, reflects a major precipitation trend in the central Himalayas. The accumulation trend, separated from the time series, shows a strong negative correlation to Northern Hemisphere temperature. Generally,as northern hemisphere temperature increases 0.1・C, the accumulation decreases about 80mm, reflecting monsoon rainfall in central Himalayas has decreased over the past decades in the condition of global warming. |
format |
Other/Unknown Material |
author |
DUAN Keqin YAO Tandong |
spellingShingle |
DUAN Keqin YAO Tandong Monsoon variability in Himalayas under the condition of global warming |
author_facet |
DUAN Keqin YAO Tandong |
author_sort |
DUAN Keqin |
title |
Monsoon variability in Himalayas under the condition of global warming |
title_short |
Monsoon variability in Himalayas under the condition of global warming |
title_full |
Monsoon variability in Himalayas under the condition of global warming |
title_fullStr |
Monsoon variability in Himalayas under the condition of global warming |
title_full_unstemmed |
Monsoon variability in Himalayas under the condition of global warming |
title_sort |
monsoon variability in himalayas under the condition of global warming |
publisher |
総合地球環境学研究所 |
publishDate |
2003 |
url |
https://chikyu.repo.nii.ac.jp/?action=repository_uri&item_id=835 http://id.nii.ac.jp/1422/00000790/ https://chikyu.repo.nii.ac.jp/?action=repository_action_common_download&item_id=835&item_no=1&attribute_id=22&file_no=1 |
geographic |
Indian |
geographic_facet |
Indian |
genre |
ice core |
genre_facet |
ice core |
op_source |
http://www.chikyu.ac.jp/oasis/ http://www.chikyu.ac.jp/ |
op_relation |
https://chikyu.repo.nii.ac.jp/?action=repository_uri&item_id=835 http://id.nii.ac.jp/1422/00000790/ オアシス地域研究会報 = Project Report on an Oasis-region, 3(2), 67-79(2003-11) 1346-9355 https://chikyu.repo.nii.ac.jp/?action=repository_action_common_download&item_id=835&item_no=1&attribute_id=22&file_no=1 |
_version_ |
1766029162557997056 |