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

Yamamoto, Masanobu; Kishizaki, Midori; Oba, Tadamichi et al.

Journal of Asian Earth Sciences, 2013, 69, 86-92

Permalink : https://hdl.handle.net/2115/53019

このアイテムのアクセス数:1,359件（2026-08-17 04:14 集計）

閲覧可能ファイル 

ファイル フォーマット サイズ 閲覧回数 説明
HUSCAP_yamamoto pdf 1.07 MB 1,370

論文情報

ファイル出力 EndNote Basic出力 Mendeley出力

アクセス権
open access
URI
https://hdl.handle.net/2115/53019
タイトル
Intense winter cooling of the surface water in the northern Okinawa Trough during the last glacial period
著者
Yamamoto, Masanobu ; Kishizaki, Midori ; Oba, Tadamichi ; Kawahata, Hodaka
e-Rad_Researcher
60332475
著者名
Yamamoto, Masanobu
著者名
Kishizaki, Midori
著者名
Oba, Tadamichi
著者名
Kawahata, Hodaka
言語
英語
キーワード
TEX86
MD98-2195
The East China Sea
Okinawa Trough
LGM
Winter monsoon
Temperature
The last glacial period
発行日
2013-06-05
出版者
Elsevier
収録物名
Journal of Asian Earth Sciences
巻(号)
69
ページ
86-92
抄録
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.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
PISSN
1367-9120
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1016/j.jseaes.2012.06.011