本文選題：普里茲灣 + 繞極深層水　； 參考：《海洋學報》2016年01期

【摘要】：基于中國南極科學考察水文調查資料,本文發(fā)現(xiàn)了變性繞極深層水(MCDW)涌升普里茲灣陸架的現(xiàn)象,并給出了其分布特征及運動過程。中國第29次南極科學考察獲得的CTD要素分布中,MCDW涌升陸架過程清晰可見。在詳細給出普里茲灣及鄰近海域MCDW的物理特性及其空間分布的基礎上,綜合前人研究成果,分析了MCDW涌升陸架過程中的運動特征。指出在研究海域內,MCDW主要通過73.00°E斷面涌升至陸架;在涌升過程中,受灣口東向流影響涌升路徑向東南偏移,至75.00°E附近匯入灣內的氣旋式環(huán)流,隨南向流進入和影響灣內;在73.00°E斷面上,涌升的MCDW呈舌狀分布,并向南逐漸抬升,-1.00℃等溫線最南到達67.10°S附近,向上擴展最高到270m左右;在67.25°S的緯向灣口斷面上,MCDW主要在73.50°~75.00°E之間、150~350m的范圍內進入陸架,不存在明顯的東西向過渡過程。
[Abstract]:Based on the hydrological survey data of Antarctic scientific survey in China, the phenomenon of MCDW surge rising in Prydz Bay shelf is found, and its distribution characteristics and motion process are given. The process of MCDW upwelling continental shelf can be seen clearly in the distribution of CTD elements obtained from the 29th Antarctic Scientific Survey in China. Based on the detailed analysis of the physical characteristics and spatial distribution of MCDW in Prydz Bay and its adjacent waters, the kinematic characteristics of the MCDW upwelling shelf are analyzed based on the previous research results. It is pointed out that the MCDW rises to the continental shelf mainly through section 73.00 擄E in the study area, and during the course of upwelling, the trending path of upwelling is shifted to the southeast under the influence of the eastward current at the mouth of the bay, and the cyclonic circulation which converges into the bay near 75.00 擄E, and enters and affects the bay with the southward current. On section 73.00 擄E, the upwelling MCDW is distributed like a tongue, and gradually uplifts southward to the southernmost reaches about 67.10 擄S, reaching the maximum of 270m, and entering the continental shelf mainly within the range of 73.50 擄75.00 擄E and 150m / 350m at the section of 67.25 擄S. There is no obvious transition from east to west.
【作者單位】： 中國科學院南海海洋研究所;中國科學院大學;國家海洋局第一海洋研究所;
【基金】：中國極地科學戰(zhàn)略研究基金項目——普里茲灣變性繞極深層水陸架涌升現(xiàn)象分析與研究(20140307) 海洋公益性行業(yè)科研專項——極地海洋環(huán)境監(jiān)測網(wǎng)系統(tǒng)研發(fā)及應用示范(201405031) 國家高科技研究發(fā)展計劃(863計劃)課題——冰架熱水鉆關鍵技術與系統(tǒng)研發(fā)(2011AA090401) 南北極環(huán)境綜合考察與評估專項——2014年度南極周邊海域物理海洋和海洋氣象專項(CHINARE2014-01-01) 2014年度南極綜合環(huán)境分析與評價(CHINARE2014-04-01) 國家重點基礎研究發(fā)展計劃(973計劃)課題——南大洋海-冰-氣相互作用及其對南印度洋的影響(2010CB950301)
【分類號】：P731.2

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