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Topographic properties of sea ice surface roughness in both cryosat-2 and SAR sub-footprint scale

机译:cryosat-2和SAR亚足迹尺度下海冰表面粗糙度的地形特征

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Knowledge of the spatial variability or patchiness of the sea-ice roughness is currently rather limited. Most of the earlier studies has been based on 1D laser altimeter measurements, airborne or satellite. Majority of the studies that use 2D laser altimeter data are however using 1D statistical methods for the data analysis, the focus being still on the elevations not on the 3D structure of the ice surface. In this case study a new approach was used: the topographic properties of the sea ice surface were studied in sub-footprint scale by using terrain analysis techniques. The presented study and preliminary results are one part of ANTLOAO project: ‘quantify Antarctic ice thickness by in situ observations, radar altimeter and modeling and use the results to assess the performance of ice going ships’.
机译:目前对海冰粗糙度的空间变异性或斑块性的了解非常有限。大多数早期研究都是基于机载或卫星一维激光高度计的测量结果。但是,大多数使用2D激光高度计数据的研究都使用1D统计方法进行数据分析,重点仍然放在冰面的3D结构上而不是在海拔上。在本案例研究中,使用了一种新方法:通过使用地形分析技术,在亚足迹范围内研究海冰表面的地形特征。提出的研究结果和初步结果是ANTLOAO项目的一部分:“通过现场观测,雷达高度计和建模来量化南极冰的厚度,并使用结果评估制冰船的性能”。

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