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A method and system for estimating sea ice density based on icesat-2 data

A density and data set technology, applied in relational databases, database models, complex mathematical operations, etc., can solve problems such as estimation of sea ice density that no researchers have proposed, so as to improve the value of use, reduce the amount of calculation, and improve the calculation The effect of precision

Active Publication Date: 2022-03-18
SHANGHAI UNIV OF ENG SCI +1
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Problems solved by technology

[0005] ICESat-2's ATLAS provides high-precision sea ice-related parameter data, but no researchers have proposed to estimate sea ice density based on ICESat-2 data. How to use ICESat-2 high-precision sea ice data to estimate sea ice density Estimating and improving the utilization value of ICESat-2 data has become a research point

Method used

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  • A method and system for estimating sea ice density based on icesat-2 data
  • A method and system for estimating sea ice density based on icesat-2 data
  • A method and system for estimating sea ice density based on icesat-2 data

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Embodiment 1

[0036] A sea ice density estimation method based on ICESat-2 data, such as figure 1 shown, including the following steps:

[0037] S1. Read the ATL10 original data set of ICESat-2 to obtain the sea ice data set. The sea ice data set includes multiple sea ice data. The attributes of the sea ice data include latitude and longitude information, collection time, ice water category parameters and segment length;

[0038] S2. Divide the sea ice data in the sea ice data set according to the collection time of the sea ice data to obtain the sea ice data sets of different months; The grid information of the data in the polar stereographic grid includes the row and column number of the grid where the sea ice data is located. According to the row and column number of the grid where the sea ice data is located, the sea ice data in the sea ice data set are divided to obtain the sea ice data of different grids. ice dataset;

[0039] S3. Calculate the sea ice density of each grid in the po...

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Abstract

The invention relates to a method and system for estimating sea ice density based on ICESat-2 data. The method includes: reading the ATL10 original data set of ICESat-2 to obtain the sea ice data set; dividing different months according to the collection time of the sea ice data sea ​​ice data set; for the sea ice data set of each month, according to the latitude and longitude information of the sea ice data, the grid information of each sea ice data in the polar stereoscopic projection grid is obtained, and the sea ice data sets of different grids are obtained ; Calculate the sea ice density of each grid in the polar stereoscopic projection grid separately, and obtain the sea ice density of each grid in different months. Compared with the prior art, the present invention assumes that the sea ice density of the grid is equal to the sea ice density along the ICESat-2 altimetry track, uses the ATL10 original data set of ICESat-2 to estimate the sea ice density, and provides a A new method for estimating sea ice density improves the utilization value of ICESat‑2 data and is beneficial for monitoring changes in polar ice sheets and sea ice density.

Description

technical field [0001] The invention relates to a method and system for estimating sea ice density, in particular to a method and system for estimating sea ice density based on ICESat-2 data. Background technique [0002] Sea ice plays a vital role in the global climate system and can effectively regulate the exchange of energy and momentum between the ocean and the atmosphere. Sea ice density is an important parameter for studying changes in sea ice. It refers to the sea ice coverage per unit area. percentage of the rate. The distribution map of sea ice density can provide valuable information for navigation in ice-affected waters and be used for climate modeling. Therefore, monitoring sea ice density and other related parameters is of great importance to ship path planning, maritime weather forecast, marine disaster warning and water resources. Management and other application areas are very important. The traditional method of estimating sea ice density is the sailing o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/18G06F16/29G06F16/28G06F16/2457
CPCG06F17/18G06F16/29G06F16/285G06F16/2457
Inventor 刘俊谢欢郭亚磊童小华李培楠
Owner SHANGHAI UNIV OF ENG SCI
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