Shelf-Basin Exchange near 79N Glacier and Zachariae Isstrom, North-East Greenland

拟议的RAPID项目的目标是在2014年夏天从德国研究破冰船R/V Polarstern上在200-400米深的Norske矿槽部署一个由五个系泊洋流、盐度、温度和两个地下压力传感器组成的阵列。 拟议中的阵列将在动态相关的时间和空间尺度上观察该通道系统内的环流。 最后，恢复的数据将用于检验一个假设，即格陵兰东北部北纬76度至北纬82度之间的顺时针冰架环流为格陵兰最后一个稳定的浮动冰架提供了温暖的大西洋沃茨（Niog-halvfjerdsfjorden Gletscher称为79 N冰川）通过20-格陵兰和南极冰盖的退化是全球海平面上升的主要原因。 据信，这些冰盖加速退化的原因之一是热量从大陆坡转移到冰川表面。 模型和定性参数表明，这种运输是加强跨货架通道，尽量减少混合的运输沃茨与冷，环境架沃茨。 该项目试图观察这种运输机制的重要性，资助的活动支持一种新生的国际合作。 由此产生的数据集将增加与气候变化有关的公众和科学辩论。 公众宣传和参与将通过http://IcySeas.org，一个研究博客建立和维护的PI作为NSF的一部分？s？科学：成为信使？程序.

The objectives of the proposed RAPID project are to deploy an array of five moored ocean current, salinity, temperature, and two subsurface pressure sensors across the 200-400 m deep Norske Ore Trough in the summer of 2014 from aboard the R/V Polarstern, a German research icebreaker. The proposed array will observe the circulation within this channel system at dynamically relevant time and space scales. Ultimately, the recovered data will be used to test the hypothesis that a clock-wise shelf circulation off north-east Greenland between 76N and 82N latitude provides warm Atlantic waters towards one of the last remaining stable floating ice-shelves in Greenland (Niog-halvfjerdsfjorden Gletscher called 79N Glacier) via a 20-40 km wide system of troughs.Degradation of the Greenland and Antarctic Ice Sheets is a major contributor to global sea level rise. One cause of the accelerating degradation of these ice sheets is believed to be the transport of heat from the continental slope to the face of tidewater glaciers. Models and qualitative arguments suggest that this transport is enhanced by cross-shelf channels that minimize mixing of the transported waters with cold, ambient shelf waters. This project is an attempt to observe the importance of such transport mechanisms.The funded activities support a nascent international collaboration. The resultant data set will add to both public and scientific debate related to climate change. Public outreach and engagement will be facilitated via http://IcySeas.org, a research blog established and maintained by the PI as part of NSF?s ?Science: Becoming the Messenger? program.