复杂地质背景下大陆坡脚点的确定方法:以莫桑比克南部陆缘为例
庄宝江(1997—),男,江苏省淮安市人,主要从事大陆架划界方法方面的研究,E-mail:1258545329@qq.com。 |
收稿日期: 2023-02-21
修回日期: 2023-04-26
网络出版日期: 2024-05-11
基金资助
国家自然科学基金项目(41830537)
国家重点研发计划项目(2017YFC1405504)
“全球变化与海气相互作用”专项二期任务(GASI-01-DLJHJ-CM)
Method for determining the foot point of continental slope in complex geological background: Take the southern continental margin of Mozambique as an example
Received date: 2023-02-21
Revised date: 2023-04-26
Online published: 2024-05-11
庄宝江 , 唐勇 , 吕孝辉 , 杨春国 , 吴招才 , 李赫 . 复杂地质背景下大陆坡脚点的确定方法:以莫桑比克南部陆缘为例[J]. 海洋学研究, 2024 , 42(1) : 13 -22 . DOI: 10.3969/j.issn.1001-909X.2024.01.002
A new method for determining the foot point of the continental slope (FOS) was proposed for the delineation of the continental shelf in a complex geological context. This method calculated the location of the foot of slope based on the mean gradient of water depth and optimized it by combining the contrary evidence and the principles of convexity, segmentation and continuity. Using the southern continental margin of Mozambique as the study area, the method was applied to extract the most critical basis—FOS for continental shelf delineation using high-precision multibeam topographic data measured in 2021, and the result was confirmed by comparison with those extracted by the Geocap software which is used by the United Nations Commission on the Limits of the Continental shelf, proving the effectiveness and accuracy of this method.
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