2005. Forcing of the Asian monsoon on the Tibetan Plateau: evidence from highresolution ice core and tropical coral records
[1] Climatic influences on snow accumulation across the Tibetan Plateau are examined using records of net snow accumulation (An) and oxygen isotopic ratios (d 18O) since 1801 from two ice cores from opposite sides of the Plateau. From 1880 to the 1990s, summer monsoon precipitation has been a signif...
Main Authors: | , , , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Published: |
2006
|
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.577.3863 http://bprc.osu.edu/Icecore/davis_jgr_2005.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.577.3863 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.577.3863 2023-05-15T16:38:20+02:00 2005. Forcing of the Asian monsoon on the Tibetan Plateau: evidence from highresolution ice core and tropical coral records Mary E. Davis Lonnie G. Thompson Tandong Yao Ninglian Wang The Pennsylvania State University CiteSeerX Archives 2006 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.577.3863 http://bprc.osu.edu/Icecore/davis_jgr_2005.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.577.3863 http://bprc.osu.edu/Icecore/davis_jgr_2005.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://bprc.osu.edu/Icecore/davis_jgr_2005.pdf text 2006 ftciteseerx 2016-01-08T12:48:59Z [1] Climatic influences on snow accumulation across the Tibetan Plateau are examined using records of net snow accumulation (An) and oxygen isotopic ratios (d 18O) since 1801 from two ice cores from opposite sides of the Plateau. From 1880 to the 1990s, summer monsoon precipitation has been a significant component of the annual accumulation on the Dasuopu glacier in the Himalayas, but during the latter part of the Little Ice Age (1810 to 1880) total An was 30 % higher than the summer monsoon amounts in northern India. This was possibly the result of increased early winter snowfall as westerly low-pressure systems linked to the North Atlantic pushed farther east along the Himalayas than they normally do today. The decades of high accumulation and the colder temperatures allowed excess snow and ice to persist late into each year, which may have weakened the subsequent Asian summer monsoon. Consequently, precipitation in the northeast Tibetan Plateau where the Dunde ice cap is located may have been affected primarily by Eurasian continental processes rather than tropical meteorology during this time. Since the onset of the recent warming over the last century, the south Asian summer monsoon intensified and influenced summer climate farther to the north and west, and expressions of tropical Pacific and Indian Oceanic/atmospheric processes are noticeable in the Dunde net accumulation record. The Dunde and Dasuopu glaciers, which are located on the northern and southern rims of the Tibetan Plateau, were situated in regions of environmental transition as the Northern Hemisphere climate shifted from a neoglacial to a warming climate mode, which is something to consider when interpreting the longer ice core climate records. Text Ice cap ice core North Atlantic Unknown Indian Pacific |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
[1] Climatic influences on snow accumulation across the Tibetan Plateau are examined using records of net snow accumulation (An) and oxygen isotopic ratios (d 18O) since 1801 from two ice cores from opposite sides of the Plateau. From 1880 to the 1990s, summer monsoon precipitation has been a significant component of the annual accumulation on the Dasuopu glacier in the Himalayas, but during the latter part of the Little Ice Age (1810 to 1880) total An was 30 % higher than the summer monsoon amounts in northern India. This was possibly the result of increased early winter snowfall as westerly low-pressure systems linked to the North Atlantic pushed farther east along the Himalayas than they normally do today. The decades of high accumulation and the colder temperatures allowed excess snow and ice to persist late into each year, which may have weakened the subsequent Asian summer monsoon. Consequently, precipitation in the northeast Tibetan Plateau where the Dunde ice cap is located may have been affected primarily by Eurasian continental processes rather than tropical meteorology during this time. Since the onset of the recent warming over the last century, the south Asian summer monsoon intensified and influenced summer climate farther to the north and west, and expressions of tropical Pacific and Indian Oceanic/atmospheric processes are noticeable in the Dunde net accumulation record. The Dunde and Dasuopu glaciers, which are located on the northern and southern rims of the Tibetan Plateau, were situated in regions of environmental transition as the Northern Hemisphere climate shifted from a neoglacial to a warming climate mode, which is something to consider when interpreting the longer ice core climate records. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Mary E. Davis Lonnie G. Thompson Tandong Yao Ninglian Wang |
spellingShingle |
Mary E. Davis Lonnie G. Thompson Tandong Yao Ninglian Wang 2005. Forcing of the Asian monsoon on the Tibetan Plateau: evidence from highresolution ice core and tropical coral records |
author_facet |
Mary E. Davis Lonnie G. Thompson Tandong Yao Ninglian Wang |
author_sort |
Mary E. Davis |
title |
2005. Forcing of the Asian monsoon on the Tibetan Plateau: evidence from highresolution ice core and tropical coral records |
title_short |
2005. Forcing of the Asian monsoon on the Tibetan Plateau: evidence from highresolution ice core and tropical coral records |
title_full |
2005. Forcing of the Asian monsoon on the Tibetan Plateau: evidence from highresolution ice core and tropical coral records |
title_fullStr |
2005. Forcing of the Asian monsoon on the Tibetan Plateau: evidence from highresolution ice core and tropical coral records |
title_full_unstemmed |
2005. Forcing of the Asian monsoon on the Tibetan Plateau: evidence from highresolution ice core and tropical coral records |
title_sort |
2005. forcing of the asian monsoon on the tibetan plateau: evidence from highresolution ice core and tropical coral records |
publishDate |
2006 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.577.3863 http://bprc.osu.edu/Icecore/davis_jgr_2005.pdf |
geographic |
Indian Pacific |
geographic_facet |
Indian Pacific |
genre |
Ice cap ice core North Atlantic |
genre_facet |
Ice cap ice core North Atlantic |
op_source |
http://bprc.osu.edu/Icecore/davis_jgr_2005.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.577.3863 http://bprc.osu.edu/Icecore/davis_jgr_2005.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766028618168795136 |