Oceanographic profile temperature and salinity measurements collected using MRB in the Atlantic from 1985 to 1994 (NODC Accession 0000700)
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Between 1985 and 1994, the Polar Science Center at the University of Washington deployed 24 ARGOS data buoys in ice floes on the Arctic Ocean, from which six temperature and conductivity sensor pairs were suspended as deep as 300 meters to allow calculation of salinity and density. Each sensor was sampled into a circular buffer every 12 minutes; one sample was transmitted every minute and the polar region coverage by ARGOS satellites provided sufficient redundancy to ensure that nearly every data point would get through. Subjected to all the stresses and strains of Arctic pack ice, these buoys varied greatly in their longevity, but the result is a substantial hydrographic record of the Arctic Ocean for a decade.
1985年至1994年间,华盛顿大学极地科学中心(Polar Science Center)在北冰洋浮冰上部署了24台ARGOS数据浮标(ARGOS data buoys),每台浮标搭载6组温度-电导率配对传感器,传感器最大下放深度可达300米,可用于计算海水盐度与密度。每台传感器每12分钟完成一次采样,并将采样数据存入循环缓冲区;每分钟传输一组采样数据,且ARGOS卫星对极地区域的覆盖具备充足冗余度,可确保几乎所有数据点均能成功回传。由于长期承受北极浮冰群的各类应力与形变,这些浮标的使用寿命差异悬殊,但最终获取了跨度长达十年的海量北冰洋水文观测记录。
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2016-03-24



