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Millennial-scale phase relationship between North Atlantic deep-level temperature and Qinghai-Tibet Plateau temperature and its evolution since the Last Interglaciation

Millennial-scale phase relationship between North Atlantic deep-level temperature and Qinghai-Tibet Plateau temperature and its evolution since the Last Interglaciation
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摘要 This study employed proxy data to investigate the phase relationship between the North Atlantic deep-level temperature and the Qinghai-Tibet Plateau(TP)surface air temperature(TP temperature)and its evolution at the millennial scale since the Last Interglaciation.The results indicate the alternation of in-phase and anti-phase relationships since the Last Interglaciation,with the in-phase relationships showing a shorter duration than the anti-phase relationships.Alternations between the in-phase and antiphase relationships occurred more frequently during the Last Interglaciation than during the Last Glaciation.The phase relationship between the North Atlantic deep-level temperature and the TP temperature was broadly illustrated by that between the North Atlantic temperature(based on oxygen isotope data from the Greenland ice core)and TP temperature.Furthermore,the North Atlantic deep-level temperature and the TP temperature may be connected through the North Atlantic sea surface temperature. This study employed proxy data to investigate the phase relationship between the North Atlantic deep-level temperature and the Qinghai-Tibet Plateau (TP) surface air temperature (TP temperature) and its evolution at the mil- lennial scale since the Last Interglaciation. The results indicate the alternation of in-phase and anti-phase relation- ships since the Last Interglaciation, with the in-phase rela- tionships showing a shorter duration than the anti-phase relationships. Alternations between the in-phase and anti- phase relationships occurred more frequently during the Last Interglaciation than during the Last Glaciation. The phase relationship between the North At/antic deep-level temperature and the TP temperature was broadly illustrated by that between the North Atlantic temperature (based on oxygen isotope data from the Greenland ice core) and TP temperature. Furthermore, the North Atlantic deep-level temperature and the TP temperature may be connected through the North Atlantic sea surface temperature.
出处 《Chinese Science Bulletin》 SCIE EI CAS 2014年第1期75-81,共7页
基金 supported by the Special Foundation for the National Science and Technology Major Project of China(2011FY120300) the National Natural Science Foundation of China(41001058)
关键词 空气温度 相位关系 北大西洋 青藏高原 千年尺度 冰期演变 末次间冰期 格陵兰冰芯 North Atlantic deep-level temperatureNorth Atlantic temperature · North Atlantic SST ·TP temperature · Phase relationship ·Millennial scale - Thermohaline circulation
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