本文選題：舟山近海海域 + 海表溫度　； 參考：《上海海洋大學(xué)學(xué)報(bào)》2016年01期

【摘要】：利用2002-2013年期間的衛(wèi)星遙感海表溫度(SST)數(shù)據(jù)分析了舟山海域夏季上升流的時(shí)空特征,并結(jié)合同時(shí)期的海面風(fēng)場(chǎng)數(shù)據(jù)探討了風(fēng)對(duì)該海域夏季上升流的影響。對(duì)多年夏季月平均的SST進(jìn)行經(jīng)驗(yàn)正交函數(shù)(EOF)分解結(jié)果表明,7月份前兩個(gè)模態(tài)方差貢獻(xiàn)率分別為71.66%、16.55%,8月份前兩個(gè)模態(tài)方差貢獻(xiàn)率分別為87.03%和7.30%,并均通過(guò)了顯著性檢驗(yàn),舟山近海海域的上升流存在較為明顯的年際變化。相關(guān)分析顯示,經(jīng)向風(fēng)速和SST異常存在顯著的負(fù)相關(guān)關(guān)系,即夏季盛行的西南風(fēng)有利于上升流的發(fā)展。并且,艾克曼(Ekman)體積輸運(yùn)計(jì)算結(jié)果表明,舟山海域7、8月份風(fēng)生上升流的量級(jí)分別為3.0×10~(-5)m/s和1.5×10~(-5)m/s,7月上升流顯著強(qiáng)于8月,這與8月份觀測(cè)到的海表顯著低溫異常相關(guān)。
[Abstract]:Based on the satellite remote sensing sea surface temperature (SST) data from 2002 to 2013, the spatial and temporal characteristics of summer upwelling in Zhoushan sea area are analyzed, and the influence of the monsoon on the summer upwelling in Zhoushan sea area is discussed with the sea surface wind field data of the same period. The empirical orthogonal function (EOF) decomposition of the monthly average SST in summer shows that the contribution rates of the first two modes in July are 71.66 and 16.555.The contribution rates of the first two modes in August are 87.03% and 7.30%, respectively, and they have passed the significance test. There is obvious interannual variation of the upwelling in the coastal waters of Zhoushan. Correlation analysis shows that there is a significant negative correlation between meridional wind speed and SST anomaly, that is, the prevailing southwest wind in summer is conducive to the development of upwelling. Moreover, the calculation results of Ekman volume transport in Zhoushan sea area show that the order of wind upwelling in July and August is 3.0 脳 10~(-5)m/s and 1.5 脳 10 ~ (-5) m / s, respectively, and the upwelling in July is stronger than that in August, which is related to the apparent low temperature anomaly observed in August.
【作者單位】： 上海海洋大學(xué)海洋科學(xué)學(xué)院;上海海洋大學(xué)大洋漁業(yè)資源可持續(xù)利用省部共建教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】：上海市科委重點(diǎn)支撐項(xiàng)目(13230502000) 國(guó)家海洋局溢油鑒別與損害評(píng)估技術(shù)重點(diǎn)實(shí)驗(yàn)室資助項(xiàng)目(D-8005-14-8003) 上海海洋大學(xué)博士科研啟動(dòng)基金項(xiàng)目(A2-0302-14-300071)
【分類號(hào)】：P732.6
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本文編號(hào)：1834198