Sea-Surface Temperature Record of ODP Site 1202B, the Southern Okinawa Trough
Sea-Surface Temperature Record of ODP Site 1202B, the Southern Okinawa Trough
复制标题
DOI：
--
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
Meixun Zhao;Chi‐Yue Huang;K. Wei
中科院分区：
文献类型：
--
作者：
Meixun Zhao;Chi‐Yue Huang;K. Wei
在台湾东北部冲绳海槽南部海域的ODP 1202 B站（24° 48.24 'N，122° 30' E;水深1274 m）获得了28 kyr以来的海表温度（SST）记录。这一千年尺度的记录揭示了冰期-间冰期SST差异为5°C，大于相同纬度的太平洋开阔洋SST变化，但与西太平洋边缘海（如南海北方）的SST变化幅度相似。与同一地点的碳酸盐氧同位素记录的对比表明，末次冰消期变暖与冰量变化同步，但滞后于格陵兰冰芯记录和中国东部葫芦洞季风记录的变暖。该站点的冰川冷却增强可能是由几个因素引起的，包括黑潮的变化，海平面变化和海岸线移动。
sea-surface temperature (SST) record of the last 28 kyr has been obtained for ODP Site 1202B (24°48.24'N, 122°30'E; water depth 1274 m), drilled offshore of NE Taiwan in the southern part of the Okinawa Trough. This millennial-scale record reveals a glacial-interglacial SST dif- ference of 5°C, larger than SST changes at similar latitude of the open Pa- cific Ocean, but is similar in amplitude with SST changes of the western Pacific's marginal seas, such as the northern South China Sea (SCS). Com- parison with a planktonic oxygen isotope record from the same site reveals that the last deglaciation warming was synchronous with ice volume changes, but lagged the warming in Greenland's ice core record and in the monsoon record from the Hulu Cave of Eastern China. The enhanced glacial cooling for this site was likely caused by several factors, including the variability of the Kuroshio, sea level variations, and coastline shift.