Intense winter cooling of the surface water in the northern Okinawa Trough during the last glacial period

被引：18

作者：

Yamamoto, Masanobu ^{[1
]}

Kishizaki, Midori ^{[1
]}

Oba, Tadamichi ^{[1
]}

Kawahata, Hodaka ^{[2
]}

机构：

[1] Hokkaido Univ, Fac Environm Earth Sci, Sapporo, Hokkaido, Japan

[2] Univ Tokyo, Atmosphere & Ocean Res Inst, Kashiwa, Chiba, Japan

来源：

JOURNAL OF ASIAN EARTH SCIENCES | 2013年 / 69卷

基金：

日本学术振兴会;

关键词：

TEX86; MD98-2195; The East China Sea; Okinawa Trough; LGM; Winter monsoon; Temperature; The last glacial period; EAST CHINA SEA; TERRESTRIAL ORGANIC-MATTER; RYUKYU ARC REGION; KUROSHIO CURRENT; PALEOENVIRONMENTAL CHANGES; TETRAETHER LIPIDS; MEMBRANE-LIPIDS; LAKE SUIGETSU; TEMPERATURE; VARIABILITY;

D O I：

10.1016/j.jseaes.2012.06.011

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We generated a 42,000-year record of TEX86 (TEX86L and TEX86H) from core MD98-2195 to better understand changes in the hydrology of the East China Sea (ECS) in the last glacial period. The TEX86-derived temperature showed an intense cooling in the last glacial period, whereas U-37(K)-derived spring sea surface temperature (SST) and foraminiferal Mg/Ca-derived summer SST showed a much smaller-scale cooling. The difference between the TEX86- and Mg/Ca-derived temperatures was around 14 degrees C from 19 to 16 ka and abruptly decreased to around 5 degrees C from 16 to 13 ka. This suggests a strong winter cooling of the surface water during the last glacial period. TEX86-,U-37(K')-, and Mg/Ca-derived temperatures were lowest at 18-17 ka, implying that the formation of cold water was maximized during that period. These results show that the cold water mass developed in the northern Okinawa Trough during the last glacial and the Kuroshio branch did not fully enter the northern margin of the Okinawa Trough. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：86 / 92

页数：7

共 61 条

[1] FLORISPHAERA-PROFUNDA, A POSSIBLE NANNOPLANKTON INDICATOR OF LATE QUATERNARY CHANGES IN SEA-WATER TURBIDITY AT THE NORTHWESTERN MARGIN OF THE PACIFIC [J].

AHAGON, N ;

TANAKA, Y ;

UJIIE, H .

MARINE MICROPALEONTOLOGY, 1993, 22 (03) :255-273

[2] Millennial-scale planktic foraminifer faunal variability in the East China Sea during the past 40000 years (IMAGES MD012404 from the Okinawa Trough) [J].

Chang, Yuan-Pin ;

Wang, Wei-Lung ;

Yokoyama, Yusuke ;

Matsuzaki, Hiroyuki ;

Kawahata, Hodaka ;

Chen, Min-Te .

TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES, 2008, 19 (04) :389-401

[3] Monsoon hydrography and productivity changes in the East China Sea during the past 100,000 years: Okinawa Trough evidence (MD012404) [J].

Chang, Yuan-Pin ;

Chen, Min-Te ;

Yokoyama, Yusuke ;

Matsuzaki, Hiroyuki ;

Thompson, William G. ;

Kao, Shuh-Ji ;

Kawahata, Hodaka .

PALEOCEANOGRAPHY, 2009, 24

[4] Mineralogical and geochemical investigations of sediment-source region changes in the Okinawa Trough during the past 100 ka (IMAGES core MD012404) [J].

Chen, Huei-Fen ;

Chang, Yuan-Pin ;

Kao, Shuh-Ji ;

Chen, Min-Te ;

Song, Sheng-Rong ;

Kuo, Li-Wei ;

Wen, Shie-Ying ;

Yang, Tien-Nan ;

Lee, Teh-Quei .

JOURNAL OF ASIAN EARTH SCIENCES, 2011, 40 (06) :1238-1249

[5] Dynamic millennial-scale climate changes in the northwestern Pacific over the past 40,000 years [J].

Chen, M. -T. ;

Lin, X. P. ;

Chang, Y. -P. ;

Chen, Y. -C. ;

Lo, L. ;

Shen, C. -C. ;

Yokoyama, Y. ;

Oppo, D. W. ;

Thompson, W. G. ;

Zhang, R. .

GEOPHYSICAL RESEARCH LETTERS, 2010, 37

[6] Glacial-interglacial variability in Atlantic meridional overturning circulation and thermocline adjustments in the tropical North Atlantic [J].

dos Santos, Raquel A. Lopes ;

Prange, Matthias ;

Castaneda, Isla S. ;

Schefuss, Enno ;

Mulitza, Stefan ;

Schulz, Michael ;

Niedermeyer, Eva M. ;

Damste, Jaap S. Sinninghe ;

Schouten, Stefan .

EARTH AND PLANETARY SCIENCE LETTERS, 2010, 300 (3-4) :407-414

[7] A novel proxy for terrestrial organic matter in sediments based on branched and isoprenoid tetraether lipids [J].

Hopmans, EC ;

Weijers, JWH ;

Schefuss, E ;

Herfort, L ;

Damsté, JSS ;

Schouten, S .

EARTH AND PLANETARY SCIENCE LETTERS, 2004, 224 (1-2) :107-116

[8]

Hopmans EC, 2000, RAPID COMMUN MASS SP, V14, P585, DOI 10.1002/(SICI)1097-0231(20000415)14:7<585::AID-RCM913>3.3.CO

[9]

2-E

[10] Millennial-scale dynamics of the winter cold tongue in the southern South China Sea over the past 26 ka and the East Asian winter monsoon [J].

Huang, Enqing ;

Tian, Jun ;

Steinke, Stephan .

QUATERNARY RESEARCH, 2011, 75 (01) :196-204

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