| 雪盖卫星遥感信息的提取方法探讨 |
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| 引用本文： | 冯学智.雪盖卫星遥感信息的提取方法探讨[J].中国图象图形学报,2000,5(10):836-839. |
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| 作者姓名： | 冯学智 |
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| 作者单位： | [1]南京大学城市与资源学系 [2]中国科学院冰川冻土研究所 |
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| 基金项目： | 国家“九五”重点科技攻关项目!(96 -912 -0 1) |
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| 摘 要： | 着重论述了从卫星遥感资料中提取雪盖信息的一些方法，结果表明，利用积雪阈值参数从ＮＯＡＡ／ＡＶＨＲＲ图象中提取雪盖信息方法和利用积雪指数（ＮＤＳＩ）从陆地卫星ＴＭ图象中提取雪盖面积的技术，以及利用ＮＯＡＡ／ＡＶＨＲＲ和ＴＭ信息复合的技术，可提高信息获取的精度，具有实用价值。
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| 关 键 词： | 雪盖 积雪指数 阈值选择 提取方法 卫星遥感信息 |
| 收稿时间： | 1999/11/1 0:00:00 |
| 修稿时间： | 1999-11-01 |
Research on the Methods of Obtaining Satellite Snowcover Information |
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| FENG Xue-zhi.Research on the Methods of Obtaining Satellite Snowcover Information[J].Journal of Image and Graphics,2000,5(10):836-839. |
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| Authors: | FENG Xue-zhi |
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| Affiliation: | Department of Urban and Resources Science,Nanjing University,Nanjing 210093 |
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| Abstract: | The methods of obtaining satellite snowcover information were described and discussed in this paper. The threshold value of snow was used for extracting snowcover information from NOAA/AVHRR images,and the Normalized Difference Snow Index (NDSI)was used for acquiring snowcover image from Landsat TM data. In order to derive more detail snowcover information, the matching technique of NOAA/AVHRR and TM images was also involved in the research. The results showed that the accuracy can be improved when the methods were used in the extraction of snowcover information from satellite images. |
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| Keywords: | Satellite Snowcover NDSI The threshold selection Extracting methods |
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