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

拟议的快速项目的目标是在2014年夏天，从德国研究破冰船R/V Polarstein上，在200-400米深的Norske矿槽中部署五个系泊洋流、盐度、温度和两个地下压力传感器。提出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。最终，恢复的数据将被用来检验这样一个假设，即格陵兰东北部北纬76-82度之间的时钟方向陆架环流通过20-40公里宽的槽系统向格陵兰仅存的几个稳定的浮动冰架之一(Niog-HalvfJerdsfjorden Gletscher称为79 N Glacier)提供温暖的大西洋水域。格陵兰和南极冰盖的退化是全球海平面上升的主要原因。这些冰盖加速退化的一个原因被认为是热量从大陆斜坡输送到潮水冰川表面。模型和定性论证表明，跨陆架通道使运输的水与寒冷的环境陆架水域的混合最小化，从而加强了这种输送。这个项目是为了观察这种运输机制的重要性。所资助的活动支持新生的国际合作。由此产生的数据集将增加与气候变化相关的公共和科学辩论。公众接触和参与将通过http://IcySeas.org，促进，这是一个由PI建立和维护的研究博客，作为国家科学基金会？S？科学：成为信使？的一部分。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.