Ocean properties below the ice shelf of Petermann Gletscher, Greenland, 2015-2017

Petermann Gletscher in North Greenland features the second largest floating ice shelf in the northern hemisphere. it is connected to Petermann Fjord and adjacent Nares Strait. Ocean temperature and salinities were measured from sensors placed below the 100-380 meter thick glacier ice shelf via conducting cables that connect Sea Bird Electronics SBE37sm sensors to dataloggers and Iridium communication satellites. The data originate from three discrete locations about 3 kilometers, 16 kilometers, and 26 kilometers from the grounding line of the ~50 kilometers long ice shelf. The data show that the floating ice shelf is strongly coupled to the ocean below and to Nares Strait at time scales from tidal to interannual and are published in (Muenchow et al., 2016; Washam et al., 2018; Washam et al., 2019)

格陵兰北部的佩德曼冰川（Petermann Gletscher）拥有北半球第二大漂浮冰架（floating ice shelf），其与佩德曼峡湾（Petermann Fjord）及相邻的内尔斯海峡（Nares Strait）相连。科研人员通过将海鸟电子（Sea Bird Electronics）SBE37sm型传感器连接至数据记录仪与铱星（Iridium）通信卫星的传输电缆，在厚度100至380米的冰架下方布设传感器，测量获取了海洋温度与盐度数据。该数据集采自三处独立测点，分别距离这座长约50千米的冰架接地线（grounding line）约3千米、16千米与26千米。观测结果显示，该漂浮冰架在从潮汐到年际的多个时间尺度上，均与下方海洋及内尔斯海峡存在强耦合关系。相关研究成果已发表于（Muenchow等，2016；Washam等，2018；Washam等，2019）