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首页> 外文期刊>Proceedings of the IEEE >Melt Pond Mapping With High-Resolution SAR: The First View
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Melt Pond Mapping With High-Resolution SAR: The First View

机译：高分辨率SAR的熔池映射：第一个视图

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摘要

Melt pond statistics (size and shape) have previously been retrieved from aerial photography and high-resolution visible satellite data. These submeter- or meter-resolution visible data can provide reasonably accurate information on melt ponds, but are greatly constrained by the limited solar illumination and frequent cloud cover in the Arctic region. In this study, we venture into exploring high-resolution synthetic aperture radar (SAR) or imaging radar method for melt pond mapping, which is not severely disrupted by cloud or low solar zenith angle. We analyzed high-resolution airborne SAR images (0.3-m resolution) of midsummer sea ice, acquired from a helicopter-borne SAR system in the northern Chukchi Sea. The pond area and shape (circularity) derived from the airborne SAR images showed that the statistics were comparable to those previously observed from aerial photographs. We argue that high-resolution SAR, together with one-to-one comparison with coincident aerial photographs, can be used to map melt ponds at a level of detail comparable to aerial photography or high-resolution optical satellite remote sensing. Our encouraging results suggest the possibility of using high-resolution SAR (current or future systems) to map melt ponds in the Arctic region.
机译：熔池的统计数据（大小和形状）以前是从航空摄影和高分辨率的可见卫星数据中获取的。这些亚米级或米级分辨率的可见数据可以提供有关融化池的合理准确信息，但受到北极地区有限的阳光照射和频繁的云层覆盖的极大限制。在这项研究中，我们冒险探索用于融化池制图的高分辨率合成孔径雷达（SAR）或成像雷达方法，该方法不会被云或低太阳天顶角严重破坏。我们分析了从楚科奇海北部直升机携带的SAR系统获取的仲夏海冰的高分辨率机载SAR图像（分辨率为0.3 m）。从机载SAR图像得出的池塘面积和形状（圆形度）表明，这些统计数据与以前从航空照片中观察到的数据具有可比性。我们认为，高分辨率SAR以及与重合航空照片的一对一比较，可用于以与航空摄影或高分辨率光学卫星遥感相当的细节水平绘制熔池图。我们令人鼓舞的结果表明，有可能使用高分辨率SAR（当前或将来的系统）在北极地区绘制熔池图。

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