月球危海盆地重力异常多尺度分析Multi-scale analysis of gravity anomalies for Mare Crisium Basin in Lunar
余杭涛,李炜钊,许闯,谢烽华,鄢建国
摘要(Abstract):
针对目前鲜有学者采用重力多尺度分析方法来研究月球危海盆地内部结构的问题,该文采用小波多尺度分析技术对月球危海地区重力异常数据进行分解得到不同尺度下的小波逼近和小波细节,进一步利用功率谱估计方法确定了不同尺度小波细节的场源埋深,反演了不同深度处密度分布。计算结果表明,危海盆地是一个典型的"质量瘤"地区,其中心位置大概是58.7°E,16.7°N,深度范围为32.7~64 km,呈现出上面小、下面大的特征,其底部直径近660 km。
关键词(KeyWords): 危海;重力异常;小波多尺度分析;质量瘤
基金项目(Foundation): 国家自然科学基金项目(41974014);; 武汉大学测绘遥感信息工程国家重点实验室开放基金项目(19P01);; 中国科学院精密测量科学与技术创新研究院大地测量与地球动力学国家重点实验室开放基金资助项目(SKLGED2021-1-2);; 广东工业大学创新创业训练项目(xj202011845267)
作者(Author): 余杭涛,李炜钊,许闯,谢烽华,鄢建国
DOI: 10.16251/j.cnki.1009-2307.2021.12.005
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