Collaborative Research: Atmosphere-Ice-Ocean Interactions in the Eastern Ross Sea

摘要“该奖项是根据2009年美国复苏和再投资法案(公法111-5)资助的。”在控制南极西部冰盖未来命运的一个假定的关键因素，例如在阿蒙森海湾地区，是温暖的绕极深水(CDW)入侵可能流向大陆架和该地区大型浮动冰架底部的程度。全球气候变暖和南大洋变暖的情景表明，向陆架输送的热量增加，导致这些支撑着冰架的大型冰架在底部积极融化。这可能会导致陆上冰川随后快速加速流入海洋。到目前为止，在阿蒙森以西巨大的罗斯冰架附近还没有直接观察到这样的CDW入侵。该项目寻求对导致CDW向极地净侵入东罗斯海地区(爱德华七世半岛科尔贝克角)和罗斯冰架(大陆上最大的冰架)的环流特征进行核算。通过使用标准的海流系泊设施，以及从RVIB Oden船上制作的CTD和XBT铸模，将对这一水团的发生进行观测。

Abstract"This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)."A postulated key factor in controlling the future fate of the West Antarctic Ice Sheet, for instance in the area of the Amundsen Sea embayment, is the extent to which warm Circumpolar Deep Water (CDW) intrusions may flow up onto the continental shelf and towards the base of the region's large floating ice shelves. Scenarios for a warming global climate, and a warmer Southern Ocean, indicate an increased shelfward heat transport resulting in aggressive basal melting of these large buttressing ice shelves. This possibly could lead to subsequent rapid acceleration of grounded, continental glacial flow into the ocean. As of yet, such CDW intrusions have not been observed directly adjacent to the massive Ross Ice Shelf to the west of the Amundsen. This project seeks an accounting of circulation features leading to increased (or not) net poleward intrusion of CDW into the Eastern Ross Sea region (Cape Colbeck, Edward VII peninsula) and under the Ross Ice Shelf, the largest ice shelf on the continent. By using standard current moorings, along with CTD and XBT casts made from aboard the RVIB Oden, observation of the occurrence of this water mass will be undertaken.