Sea Ice Properties and Processes in the Weddell Gyre: A Component of AnZone

拟议的工作是调查的过程和 一个统一的常年，可能是多年，海的性质， 威德尔海西部的冰盖 被认为是在很大程度上是水平的，和一个类似的计划， 威德尔海的中部和东部，季节变化很大， 海洋似乎是由垂直过程主导的。 的 1992年将在威德尔海西部的一个冰上营地进行 由美国和苏联科学家共同占领。 校长 实验将是一个中尺度变形阵列与位置 由卫星全球定位系统确定 （GPS）。 此外，长期的热量和质量平衡测量， 并会在营地附近进行不同的冰型测试。 这包括安装冰厚计，热敏电阻 （温度）字符串，和应力传感器，这将是采样 在漂移期间周期性地变化。 冰的样本将 进行物理、化学、生物和光学检查 为了建立一个基线生态及其 随着冰盖向北漂移， 雷达后向散射 被动微波辐射测量将在 几个频率，以建立介电性能的 海冰，并为未来提供地面实况信息 卫星雷达实验

The proposed work is an investigation of the processes and properties of a consolidated perennial, possibly multi-year, sea ice cover in the western Weddell Sea where oceanographic processes are presumed to be largely horizontal, and a similar program in the central and eastern Weddell Sea where seasonal variability is high, and the ocean appears to be dominated by vertical processes. The western Weddell Sea will be carried out in 1992 at an ice camp occupied jointly by U.S. and USSR scientists. The principal experiment will be a mesoscale deformation array with location being determined by the satellite-based Global Positioning System (GPS). Additionally, long-term heat and mass balance measurements on various ice types in the vicinity of the camp will be carried out. This involves installing ice thickness gauges, thermistor (temperature) strings, and stress sensors, which will be sampled periodically over the duration of the drift. Ice samples will be examined for physical, chemical, biological, and optical properties in order to establish a baseline ecology and its variations as the ice cover drifts northward. Radar backscatter and passive microwave emission measurements will be made at several frequencies to establish the dielectric properties of the sea ice and to provide ground truth information for future satellite-based radar experiments.