Method for determining continental edge landslide slope toe

Abstract

The invention provides a method for determining continental edge landslide slope toe. The method comprises the following steps: step 1, determining profile elevation and distance data of a slope toe point control line; step 2, calculating the gradient and the gradient change of the slope toe point control line according to the profile elevation and distance data of the slope toe point control linegenerated in the step 1; step 3, determining a slope toe point: selecting one point with the maximum gradient change, which meets the slope toe point selection standard, as the slope toe point on theslope toe point control line; step 4, circulating the step 1 to the step 3, searching the slope toe points on each slope toe point control line, and connecting the slope toe points in sequence to form the continental edge landslide slope toe line. Compared with a traditional slope toe point determining method, the method has the advantages that the method enables slope toe point selection on thecontinental edge to be visual and convenient, judgment of professional knowledge can be combined more easily on the basis of calculation data and the position of the slope toe point can be determinedmore accurately.

Description

technical field [0001] The present invention belongs to the demarcation technology of the continental shelf beyond 200 nautical miles. In the absence of contrary proof, the method can fully combine the professional judgment of topography to determine the foot of the continental slope and delineate the outer edge of the continental edge. Background technique [0002] According to the 1982 "United Nations Convention on the Law of the Sea", it stipulates the national territorial sea, exclusive economic zone and archipelagic waters of coastal states and the scope of national sovereignty or jurisdiction. Paragraph 4 of Article 76 of the Convention stipulates the definition and scope of application of the toe point. In order to determine whether and how to apply Article 76, this requires the coastal state to identify its coastline and Features off the coast. The determination and accuracy of the slope foot point will directly affect the demarcation result. [0003] In the proces...

AI Technical Summary

Problems solved by technology

At present, there are tools for drawing terrain profiles and calculating slope changes at each point of the profile. However, the data displayed by these tools are independent and have no interaction with terrain graphics. Terrain information cannot be interacted with, making it difficult to select the foot of the slope

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