Sea Ice Physical-Structrual Characteristics: Development and SAR Signature in the Pacific Sector of the Southern Ocean

这个项目是一个检查的物理和结构 阿蒙森河中的南极冰层的性质 Bellingshausen和Ross Seas，目标是定义 各种冰型的地理变异性， 在南极冰盖中活跃的过程， 大尺度热力学和热交换过程的冰- 覆盖南大洋。 另一个目标是将具体的 南极海冰对合成孔径的特性 从卫星上观察到的雷达（SAR）信号。 物理性质包括盐度、温度和盐水 体积，而结构特性包括的分数 季节性感冒药中的果糖、血小板和果糖 冰块 冰型的差异是差异的结果 在冰形成的环境中：frazil冰形成于 过冷海水，通常通过风或波浪引起 湍流，而血小板和血小板形成下 静态条件。 冰的一部分（已经被 据观察，威德尔海浮冰中一般超过50%） 是海洋上层能量收支的重要变量， 并且显著地有助于表面的稳定 层次。 海冰场观测与综合 孔径雷达数据分析和建模研究将有助于 更好地了解海冰参数及其 地球物理控制，并将是有用的，在定义的种类 可以使用SAR数据研究空气-冰-海洋相互作用，例如 以及具有更广泛的相关性和应用于大气， 生物学和海洋学调查 海洋

This project is an examination of the physical and structural properties of the antarctic ice pack in the Amundsen, Bellingshausen, and Ross Seas, with the goal of defining the geographical variability of various ice types, the deformation processes that are active in the antarctic ice pack, and the large-scale thermodynamics and heat exchange processes of the ice- covered Southern Ocean. An additional goal is to relate specific characteristics of antarctic sea ice to its synthetic aperture radar (SAR) signature as observed from satellites. Physical properties include the salinity, temperature, and brine volumes, while structural properties include the fraction of frazil, platelet, and congelation ice of the seasonal antarctic pack ice. Differences in ice types are the result of differences in the environment in which the ice forms: frazil ice is formed in supercooled sea water, normally through wind or wave-induced turbulence, while platelet and congelation ice is formed under quiescent conditions. The fraction of frazil ice (which has been observed to be generally in excess of 50% in Weddell Sea ice floes) is an important variable in the energy budget of the upper ocean, and contributes significantly to the stabilization of the surface layers. The integration of sea ice field observations and synthetic aperture radar data analysis and modeling studies will contribute to a better understanding of sea ice parameters and their geophysical controls, and will be useful in defining the kind of air-ice-ocean interactions that can be studied using SAR data, as well as having broader relevance and application to atmospheric, biological, and oceanographic investigations of the Southern Ocean.