Synchronous pattern of moisture availability on the southern Tibetan Plateau since 17.5 cal. ka BP - the Tangra Yumco lake sediment record
A possible asynchronicity of the spatial and temporal moisture availability on the Tibetan Plateau has been a controversial subject of discussion in recent years. Here we present the first attempt to systematically investigate possible spatial and temporal variations in moisture availability by exam...
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2017
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Online Access: | https://gfzpublic.gfz-potsdam.de/pubman/item/item_1723892 https://gfzpublic.gfz-potsdam.de/pubman/item/item_1723892_4/component/file_2115893/1723892.pdf |
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_1723892 2023-05-15T16:37:54+02:00 Synchronous pattern of moisture availability on the southern Tibetan Plateau since 17.5 cal. ka BP - the Tangra Yumco lake sediment record Ahlborn, M. Haberzettl, T. Wang, J. Henkel, K. Kasper, T. Daut, G. Zhu, L. Mäusbacher, R. 2017 application/pdf https://gfzpublic.gfz-potsdam.de/pubman/item/item_1723892 https://gfzpublic.gfz-potsdam.de/pubman/item/item_1723892_4/component/file_2115893/1723892.pdf unknown info:eu-repo/semantics/altIdentifier/doi/10.1111/bor.12204 info:eu-repo/semantics/altIdentifier/urn/http://doi.crossref.org/servlet/query?format=unixref&pid=bib@gfz-potsdam.de&id=10.1111/bor.12204 https://gfzpublic.gfz-potsdam.de/pubman/item/item_1723892 https://gfzpublic.gfz-potsdam.de/pubman/item/item_1723892_4/component/file_2115893/1723892.pdf info:eu-repo/semantics/openAccess Boreas info:eu-repo/semantics/article 2017 ftgfzpotsdam https://doi.org/10.1111/bor.12204 2022-09-14T05:56:11Z A possible asynchronicity of the spatial and temporal moisture availability on the Tibetan Plateau has been a controversial subject of discussion in recent years. Here we present the first attempt to systematically investigate possible spatial and temporal variations in moisture availability by examining two lakes, Tangra Yumco and Nam Co, on an east–west transect on the southern Tibetan Plateau using identical proxies for palaeoenvironmental reconstruction. In this study, an independent record from Tangra Yumco was analysed applying a multi-proxy approach to reconstruct variations in moisture availability since the Lateglacial. Results were subsequently compared with previously published records from Nam Co and additional records from Tso Moriri (northwestern Himalaya) and Naleng Co (southeastern Tibetan Plateau). Our results show that Tangra Yumco was at least partially ice covered prior to 17.1 cal. ka BP. A temperature rise after 17.1 cal. ka BP probably resulted in thawing of the permafrost. At 16.0 cal. ka BP moisture availability increased, representing an initial monsoonal intensification. Warmer conditions between 13.0 and 12.4 cal. ka BP and cooler conditions between 12.4 cal. ka BP and the onset of the Holocene reflect the Bølling-Allerød and Younger Dryas. At the onset of the Holocene moisture availability rapidly increased, with moisture highest prior to 8.5 cal. ka BP when temperatures were also highest. After 8.5 cal. ka BP the moisture availability gradually decreased and showed only minor amplitude variations. These findings are consistent with the records from large lakes like Nam Co, Tso Moriri, and Naleng Co, revealing a synchronous pattern of moisture availability on the southern Tibetan Plateau. Article in Journal/Newspaper Ice permafrost GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Tangra ENVELOPE(-60.100,-60.100,-62.667,-62.667) Boreas 46 2 229 241 |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
unknown |
description |
A possible asynchronicity of the spatial and temporal moisture availability on the Tibetan Plateau has been a controversial subject of discussion in recent years. Here we present the first attempt to systematically investigate possible spatial and temporal variations in moisture availability by examining two lakes, Tangra Yumco and Nam Co, on an east–west transect on the southern Tibetan Plateau using identical proxies for palaeoenvironmental reconstruction. In this study, an independent record from Tangra Yumco was analysed applying a multi-proxy approach to reconstruct variations in moisture availability since the Lateglacial. Results were subsequently compared with previously published records from Nam Co and additional records from Tso Moriri (northwestern Himalaya) and Naleng Co (southeastern Tibetan Plateau). Our results show that Tangra Yumco was at least partially ice covered prior to 17.1 cal. ka BP. A temperature rise after 17.1 cal. ka BP probably resulted in thawing of the permafrost. At 16.0 cal. ka BP moisture availability increased, representing an initial monsoonal intensification. Warmer conditions between 13.0 and 12.4 cal. ka BP and cooler conditions between 12.4 cal. ka BP and the onset of the Holocene reflect the Bølling-Allerød and Younger Dryas. At the onset of the Holocene moisture availability rapidly increased, with moisture highest prior to 8.5 cal. ka BP when temperatures were also highest. After 8.5 cal. ka BP the moisture availability gradually decreased and showed only minor amplitude variations. These findings are consistent with the records from large lakes like Nam Co, Tso Moriri, and Naleng Co, revealing a synchronous pattern of moisture availability on the southern Tibetan Plateau. |
format |
Article in Journal/Newspaper |
author |
Ahlborn, M. Haberzettl, T. Wang, J. Henkel, K. Kasper, T. Daut, G. Zhu, L. Mäusbacher, R. |
spellingShingle |
Ahlborn, M. Haberzettl, T. Wang, J. Henkel, K. Kasper, T. Daut, G. Zhu, L. Mäusbacher, R. Synchronous pattern of moisture availability on the southern Tibetan Plateau since 17.5 cal. ka BP - the Tangra Yumco lake sediment record |
author_facet |
Ahlborn, M. Haberzettl, T. Wang, J. Henkel, K. Kasper, T. Daut, G. Zhu, L. Mäusbacher, R. |
author_sort |
Ahlborn, M. |
title |
Synchronous pattern of moisture availability on the southern Tibetan Plateau since 17.5 cal. ka BP - the Tangra Yumco lake sediment record |
title_short |
Synchronous pattern of moisture availability on the southern Tibetan Plateau since 17.5 cal. ka BP - the Tangra Yumco lake sediment record |
title_full |
Synchronous pattern of moisture availability on the southern Tibetan Plateau since 17.5 cal. ka BP - the Tangra Yumco lake sediment record |
title_fullStr |
Synchronous pattern of moisture availability on the southern Tibetan Plateau since 17.5 cal. ka BP - the Tangra Yumco lake sediment record |
title_full_unstemmed |
Synchronous pattern of moisture availability on the southern Tibetan Plateau since 17.5 cal. ka BP - the Tangra Yumco lake sediment record |
title_sort |
synchronous pattern of moisture availability on the southern tibetan plateau since 17.5 cal. ka bp - the tangra yumco lake sediment record |
publishDate |
2017 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_1723892 https://gfzpublic.gfz-potsdam.de/pubman/item/item_1723892_4/component/file_2115893/1723892.pdf |
long_lat |
ENVELOPE(-60.100,-60.100,-62.667,-62.667) |
geographic |
Tangra |
geographic_facet |
Tangra |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
Boreas |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/bor.12204 info:eu-repo/semantics/altIdentifier/urn/http://doi.crossref.org/servlet/query?format=unixref&pid=bib@gfz-potsdam.de&id=10.1111/bor.12204 https://gfzpublic.gfz-potsdam.de/pubman/item/item_1723892 https://gfzpublic.gfz-potsdam.de/pubman/item/item_1723892_4/component/file_2115893/1723892.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/bor.12204 |
container_title |
Boreas |
container_volume |
46 |
container_issue |
2 |
container_start_page |
229 |
op_container_end_page |
241 |
_version_ |
1766028198969081856 |