East Asian monsoon climate during the Late Pleistocene: high-resolution sediment records from the South China Sea
Based on the study of 10 sediment cores and 40 core-top samples from the South China Sea (SCS) we obtained proxy records of past changes in East Asian monsoon climate on millennial to bidecadal time scales over the last 220,000 years. Climate proxies such as global sea level, estimates of paleotempe...
Other Authors: | |
---|---|
Format: | Text |
Language: | English |
Published: |
1998
|
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.464.6789 http://biogeochemistry.org/biblio/Wang_et_al_99_MarGeol.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.464.6789 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.464.6789 2023-05-15T18:01:04+02:00 East Asian monsoon climate during the Late Pleistocene: high-resolution sediment records from the South China Sea The Pennsylvania State University CiteSeerX Archives 1998 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.464.6789 http://biogeochemistry.org/biblio/Wang_et_al_99_MarGeol.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.464.6789 http://biogeochemistry.org/biblio/Wang_et_al_99_MarGeol.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://biogeochemistry.org/biblio/Wang_et_al_99_MarGeol.pdf text 1998 ftciteseerx 2016-01-08T06:50:16Z Based on the study of 10 sediment cores and 40 core-top samples from the South China Sea (SCS) we obtained proxy records of past changes in East Asian monsoon climate on millennial to bidecadal time scales over the last 220,000 years. Climate proxies such as global sea level, estimates of paleotemperature, salinity, and nutrients in surface water, ventilation of deep water, paleowind strength, freshwater lids, fluvial and=or eolian sediment supply, and sediment winnowing on the sea floor were derived from planktonic and benthic stable-isotope records, the distribution of siliciclastic grain sizes, planktonic foraminifera species, and the UK37 biomarker index. Four cores were AMS-14C-dated. Two different regimes of monsoon circulation dominated the SCS over the last two glacial cycles, being linked to the minima and maxima of Northern Hemisphere solar insolation. (1) Glacial stages led to a stable estuarine circulation and a strong O2-minimum layer via a closure of the Borneo sea strait. Strong northeast monsoon and cool surface water occurred during winter, in part fed by an inflow from the north tip of Luzon. In contrast, summer temperatures were as high as during interglacials, hence the seasonality was strong. Low wetness in subtropical South China was opposed to large river input from the emerged Sunda shelf, serving as glacial refuge for tropical forest. (2) Interglacials were marked by a strong inflow of warm water via the Borneo sea strait, intense upwelling southeast of Vietnam and continental wetness in China during summer, weaker northeast monsoon and high sea-surface temperatures during winter, i.e. low seasonality. On top of the Text Planktonic foraminifera Unknown Sunda ENVELOPE(-6.982,-6.982,62.205,62.205) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
Based on the study of 10 sediment cores and 40 core-top samples from the South China Sea (SCS) we obtained proxy records of past changes in East Asian monsoon climate on millennial to bidecadal time scales over the last 220,000 years. Climate proxies such as global sea level, estimates of paleotemperature, salinity, and nutrients in surface water, ventilation of deep water, paleowind strength, freshwater lids, fluvial and=or eolian sediment supply, and sediment winnowing on the sea floor were derived from planktonic and benthic stable-isotope records, the distribution of siliciclastic grain sizes, planktonic foraminifera species, and the UK37 biomarker index. Four cores were AMS-14C-dated. Two different regimes of monsoon circulation dominated the SCS over the last two glacial cycles, being linked to the minima and maxima of Northern Hemisphere solar insolation. (1) Glacial stages led to a stable estuarine circulation and a strong O2-minimum layer via a closure of the Borneo sea strait. Strong northeast monsoon and cool surface water occurred during winter, in part fed by an inflow from the north tip of Luzon. In contrast, summer temperatures were as high as during interglacials, hence the seasonality was strong. Low wetness in subtropical South China was opposed to large river input from the emerged Sunda shelf, serving as glacial refuge for tropical forest. (2) Interglacials were marked by a strong inflow of warm water via the Borneo sea strait, intense upwelling southeast of Vietnam and continental wetness in China during summer, weaker northeast monsoon and high sea-surface temperatures during winter, i.e. low seasonality. On top of the |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
title |
East Asian monsoon climate during the Late Pleistocene: high-resolution sediment records from the South China Sea |
spellingShingle |
East Asian monsoon climate during the Late Pleistocene: high-resolution sediment records from the South China Sea |
title_short |
East Asian monsoon climate during the Late Pleistocene: high-resolution sediment records from the South China Sea |
title_full |
East Asian monsoon climate during the Late Pleistocene: high-resolution sediment records from the South China Sea |
title_fullStr |
East Asian monsoon climate during the Late Pleistocene: high-resolution sediment records from the South China Sea |
title_full_unstemmed |
East Asian monsoon climate during the Late Pleistocene: high-resolution sediment records from the South China Sea |
title_sort |
east asian monsoon climate during the late pleistocene: high-resolution sediment records from the south china sea |
publishDate |
1998 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.464.6789 http://biogeochemistry.org/biblio/Wang_et_al_99_MarGeol.pdf |
long_lat |
ENVELOPE(-6.982,-6.982,62.205,62.205) |
geographic |
Sunda |
geographic_facet |
Sunda |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
http://biogeochemistry.org/biblio/Wang_et_al_99_MarGeol.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.464.6789 http://biogeochemistry.org/biblio/Wang_et_al_99_MarGeol.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766170392052891648 |