A Method for Calculating the Age of Sea Ice

A technology of ice age and area, applied in the field of remote sensing image information processing, can solve the problems of complex calculation process and large calculation amount, and achieve the effect of improving work efficiency and reducing calculation amount

Inactive Publication Date: 2020-10-09
DALIAN MARITIME UNIVERSITY
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Problems solved by technology

However, the sea ice ice age extraction algorithm in the prior art is based on sea ice movement and has a large amount of calculation, and the calculation process is too complicated

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  • A Method for Calculating the Age of Sea Ice

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Embodiment Construction

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0020] figure 1 Calculating the sea ice ice age method flowchart for the present invention, as figure 1 As shown, the method of this embodiment may include:

[0021] Step 101: Convert the daily sea ice density image from X-N to X years into a binary image of sea ice and seawater according to the preset threshold of sea ice density, where X is th...

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Abstract

The invention provides a method for calculating sea ice ages. The method comprises the steps that a daily sea ice concentration image from the (X-N) year to the X year is converted into a binary imageof sea ice and sea water according to a preset threshold value of a sea ice concentration, wherein X is a year value, and N is a sea ice age value; a maximum sea ice region corresponding to the X year and a minimum sea ice region corresponding to the (X-1) year are determined according to the number of pixels in the binary image; a total sea ice region with an ice age from 1 to N and a total seaice region with an ice age from 2 to N can be determined respectively according to the maximum sea ice region corresponding to the X year and the minimum sea ice region corresponding to the (X-1) year; and a sea ice region corresponding to the ice age of two years, a sea ice region corresponding to the ice age of three years to a sea ice region corresponding to the ice age of N years are extractedfrom the total sea ice region with the ice age from 2 to N. Through the method, calculation of the sea ice ages is simplified, the calculated amount of the sea ice ages is reduced, and working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of remote sensing image information processing, in particular to a method for calculating the ice age of sea ice. Background technique [0002] With the design and construction of new polar scientific research icebreakers and people's increasing attention to the Arctic shipping lanes, it is very necessary to analyze and track the polar sea ice environment. [0003] One of the most important parameters in sea ice analysis is the ice age of the sea ice. Sea ice age is closely related to sea ice thickness, and is an important parameter to determine whether ships can safely pass through polar waters. However, the sea ice ice age extraction algorithm in the prior art is based on sea ice movement and has a large amount of calculation, and the calculation process is too complicated. Contents of the invention [0004] The invention provides a method for calculating the ice age of sea ice to overcome the above te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/62
CPCG06T7/62
Inventor 马龙艾力巴提·阿布力米提
Owner DALIAN MARITIME UNIVERSITY
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