The RADARSAT Geophysical Processor System

The RADARSAT Geophysical Processor System
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DOI:
10.1007/978-3-642-60282-5_11
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发表时间:
1998
期刊:
--
影响因子:
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通讯作者:
R. Kwok
R. Kwok
中科院分区:
其他
文献类型:
--
作者:
R. Kwok

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RADARSAT地球物理处理系统(RGPS)是一个数据处理系统,用于分析加拿大RADARSAT卫星(Raney et al. 1991)获得的海冰合成孔径雷达(SAR)数据。RADARSAT于1995年11月以24天重复周期发射,这种轨道结构每隔3天和7天对高纬度地区进行几乎重复的覆盖。SAR传感器具有多种成像模式,其中一种模式照亮了为地球表面的大规模测绘而设计的宽带(460公里)。阿拉斯加搜救设施的科学计划要求每周对北冰洋进行覆盖。在这种模式下,100 m像素每7天覆盖一次北冰洋(图1),每天产生大约1gb的图像数据。为了使这大量的SAR数据对科学更有用
The RADARSAT Geophysical Processor System (RGPS) is a data processing system for the analysis of synthetic aperture radar (SAR) data of sea ice acquired by the Canadian RADARSAT satellite (Raney et al. 1991). RADARSAT was launched in November of 1995 into a 24-day repeat cycle, an orbit configuration which provides near repeat coverage of the high latitudes at 3- and 7-day intervals. The SAR sensor has a number of imaging modes, one of which illuminates a wide swath (460 km) designed for large scale mapping of the Earth’s surface. The science plan of the Alaska SAR Facility calls for weekly coverage of the Arctic Ocean. With this mode, the coverage of the Arctic Ocean every 7 days (Fig. 1) with 100 m pixels produces approximately 1 GB of image data daily. In an effort to make this large volume of SAR data more useful to the scien-