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首页> 外文期刊>IEEE Geoscience and Remote Sensing Letters >The Distribution and Classification of Bottom Crevasses From Radar Sounding of a Large Tabular Iceberg
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The Distribution and Classification of Bottom Crevasses From Radar Sounding of a Large Tabular Iceberg

机译:大型板状冰山雷达探测的底部裂缝分布与分类

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Bottom crevasses at the base of an iceberg or ice shelf are identified in radar sounding observations from their long echo tails. In November 2001, a radar sounding survey was conducted over iceberg B15A, which calved off from the Ross Ice Shelf, Antarctica, in March 2000. Pervasive basal cracking was observed, and the distribution of bottom crevasses along the flight lines is presented. The echo tails were quantitatively analyzed using a physically based model for backscattering from bottom crevasses. The identified crevasses are classified as either major water-filled crevasses or incipient/freezing crevasses, and estimates for crevasse heights are given
机译:在冰山或冰架底部的底部裂缝在其长回波尾部的雷达测深中得以识别。 2001年11月,对2000年3月从南极洲罗斯冰架上塌下的B15A冰山进行了雷达探测。观察到了普遍的基底开裂,并显示了沿飞行路线的底部裂缝的分布。回波尾部使用基于物理的模型对底部裂缝的反向散射进行了定量分析。识别出的裂缝分为主要充水裂缝或初期/冻结裂缝,并给出裂缝高度的估算值

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