全月球撞击坑识别、分类及空间分布

发布时间：2018-07-02 12:15

本文选题：嫦娥一号 + 撞击坑识别　；参考：《地理科学进展》2015年03期

【摘要】：撞击坑是月球表面分布广泛的地貌单元,是研究月球的最直接窗口。本文以嫦娥一号卫星获取的遥感影像和DEM,以及国际天文学联合会(IAU)公布的撞击坑名录为基础数据源,以全月球表面撞击坑为研究对象,采用遥感图像处理与专家知识融合的目视解译法确定撞击坑的边界,识别出全月球表面直径大于500 m的撞击坑共计106030个,采用累积频率和与IAU公布撞击坑对比两种方法对目视解译的撞击坑进行精度评价,其识别的总体误差率为10.97%;按照形态特征指标,将全月球撞击坑分为六大类,对比分析了不同类的撞击坑影像及形貌差异性;对全月球撞击坑分类进行统计分析,得出了不同类型撞击坑在月球表面的数量与密度特征及空间分布情况。
[Abstract]:Craters are widely distributed geomorphological units on the lunar surface and are the most direct window for studying the moon. Based on the remote sensing images obtained by Chang 'e-1 satellite and the list of impact craters published by the International Astronomical Union (IAU), this paper takes the impact crater on the whole moon surface as the research object. The boundary of impact crater was determined by visual interpretation method of remote sensing image processing and expert knowledge fusion. A total of 106030 impact craters with a diameter of more than 500 m on the surface of the whole moon were identified. The accuracy of visual interpretation of impact craters was evaluated by means of cumulative frequency and comparison with IAU impact craters. The overall error rate of recognition was 10.97. According to the morphological characteristics, the impact craters were divided into six categories. The image and morphology differences of different impact craters are compared and analyzed, and the number and density characteristics and spatial distribution of different impact craters on the lunar surface are obtained by statistical analysis of the classification of the impact craters on the whole moon.
【作者单位】：中国科学院地理科学与资源研究所资源与环境信息系统国家重点实验室;中国科学院大学;
【基金】：国家自然科学基金项目(41171332)
【分类号】：P184.5

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