| LIN Lina,CHEN Hongxia,LIU Na. 2016. The characteristics of warm water inflowing and its temporal and spatial variation on the Prydz Bay continental shelf, Antarctic. Acta Oceanologica Sinica, 35(9):51－57 |
| The characteristics of warm water inflowing and its temporal and spatial variation on the Prydz Bay continental shelf, Antarctic |
| 南极普里兹湾暖水涌升陆架过程及在陆架上的时空分布特征分析 |
| Received:July 07, 2015 Revised:November 20, 2015 |
| DOI：10.1007/s13131-016-0934-6 |
| Key words:modified circumpolar deep water the Prydz Bay continental shelf |
| 中文关键词: 变性绕极深层水 普里兹湾 陆架 |
| 基金项目: |
| Author Name | Affiliation | E-mail | | LIN Lina | University of Chinese Academy of Sciences, Beijing 100049, China
Key Laboratory of Marine Science and Numerical Modeling, The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China | | | CHEN Hongxia | Key Laboratory of Marine Science and Numerical Modeling, The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China | chenhx@fio.org.cn | | LIU Na | Key Laboratory of Marine Science and Numerical Modeling, The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China | |
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| Abstract: |
| Hydrographic observations collected by conductivity-temperature-depth (CTD) and instrumented elephant seals on the Prydz Bay continental shelf during 2012 and 2013 are used to characterize the intrusion of modified circumpolar deep water. As a regular occurrence, modified circumpolar deep water (MCDW) intrudes onto the shelf mainly between 150-300 m layer of 73°-75°E and then turns southeast affected by the cyclonic gyre of the Prydz Bay. The southernmost point of the warm water signal is captured on the east front of Amery Ice Shelf during March 2012. In terms of vertical distribution, MCDW occupies the central layer of 200 m with about 100 m thickness in the austral summer, but when to winter transition, the layer of MCDW deepens with time on the central shelf. |
| 中文摘要: |
| 基于CTD和海豹在普里兹湾陆架区获取的2012年和2013年水文调查资料，本文分析了变性绕极深层水（MCDW）涌升陆架过程及在陆架区的时空分布特征。结果显示，MCDW涌升陆架是普里兹湾的一个常规水文现象。MCDW主要在73°E~75°E之间、150 m~300 m的范围内进入陆架，随后受湾内气旋式环流的影响向东南偏移，观测到的最南端的暖水信号位于埃默里冰架东部前缘，出现在2012年3月。在垂向上，夏季MCDW主要占据200 m深度附近约100 m厚度的范围，但在向冬季转换的过程中，MCDW深度逐渐加深。 |
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