| 天山地区SAR数据雪盖制图研究 |
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| 引用本文： | 李震,曾群柱.天山地区SAR数据雪盖制图研究[J].冰川冻土,1996,18(4):366-372. |
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| 作者姓名： | 李震 曾群柱 |
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| 作者单位： | 中国科学院兰州冰川冻土研究所 |
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| 摘 要： | 在分析合成孔径雷达（ＳＡＲ）成像机理及雪盖参数散射特性的基础上，利用航天飞机搭载的成像雷达（ＳＩＲ－Ｃ）获取的天山Ｃ波段、多极化ＳＡＲ数据，进行提取雪盖信息的实验。数据通过预处理、散射系数图像的计算、去噪、入射角改正等处理后，利用ＢＡＹＥＳ监督分类方法产生该地区的雪盖分类图。实验结果表明，利用多波段、多极化ＳＡＲ进行雪盖制图是可行的。
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| 关 键 词： | 合成孔径雷达 散射 雪盖 制图 天山地区 |
A Study of Snow-cover Mapping with SAR Image in the Tianshan Mountains |
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| Li Zhen,Zeng Qunzhu and Sun Wenxin.A Study of Snow-cover Mapping with SAR Image in the Tianshan Mountains[J].Journal of Glaciology and Geocryology,1996,18(4):366-372. |
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| Authors: | Li Zhen Zeng Qunzhu and Sun Wenxin |
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| Abstract: | According of the imaging principle of Synthetic Aperture Radar and back-scattering characteristics of snow, authors examined the capability of snow-cover mapping with multifrequency and multipolarized SAR images from SIR- C carried by shuttle The snow -cover can be mapped after a serial image proceeding on SAR data in the Tianshan Mountains The result shows that C-band HH and VV images can be used to discriminate between wet-snow and snow-free area, and cross -polarized SAR images of C-band can be used to discriminate between dry-snow and bare ground So the SAR data can be used to map snow-cover |
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| Keywords: | synthetic aperture radar back-scattering snow-cover |
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