Check patentability & draft patents in minutes with Patsnap Eureka AI!

Method for comprehensively correcting north pole sea ice thickness inversion

A technology of comprehensive correction and inversion equations, applied in design optimization/simulation, instrumentation, electrical digital data processing, etc., can solve problems such as poor accuracy and lack of snow depth data on ice for many years, and achieve the goal of improving accuracy Effect

Pending Publication Date: 2022-04-29
SHANGHAI OCEAN UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the present Arctic sea ice thickness inversion, the snow thickness used is mainly obtained by using the annual ice and snow thickness data of AMSR-E / AMSR2 and the linear fitting formula of the W99 model, and its accuracy is not good, and Lack of data on multi-year snow depth on ice

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for comprehensively correcting north pole sea ice thickness inversion
  • Method for comprehensively correcting north pole sea ice thickness inversion
  • Method for comprehensively correcting north pole sea ice thickness inversion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments:

[0026] Such as figure 1 A method for comprehensively correcting the inversion of Arctic sea ice thickness is shown, including the following steps:

[0027] Step S1: Use the download tool to download the monthly average CryoSat-2 dataset with a spatial resolution of 25km×25km, which includes radar freeboard, sea ice freeboard, sea ice thickness, sea ice density, and snow density , seawater density, sea ice type and snow thickness, and build a database for the CryoSat-2 data; use the download tool to download the daily FY3B / MWRI dataset with a spatial resolution of 10km×10km, which includes different channels Brightness Temperatures (TBs). Establish a database for FY3B / MWRI data; use the download tool to download the daily OIB dataset with a spat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for comprehensively correcting north pole sea ice thickness inversion, which belongs to the technical field of satellite remote sensing sea ice thickness inversion, and comprises the following steps: S1, downloading satellite data and establishing a database; s2, simulating the brightness temperature TBs of FY3B / MWRI by using a microwave emission model of layered accumulated snow in combination with satellite data, performing correlation analysis on the depth change of the accumulated snow, and determining optimal parameters; s3, deducing an inversion formula of the accumulated snow depth under one-year ice and multi-year ice according to the optimal parameters, and inverting accumulated snow depth data by using the formula; s4, using the accumulated snow depth data to redistribute the grid data of the accumulated snow depth; step S5, deducing to obtain an improved CryoSat-2 radar penetration rate; s6, constructing a sea ice thickness inversion equation; and S7, substituting the data into the sea ice thickness inversion equation to obtain the sea ice thickness. The constructed sea ice thickness inversion equation effectively improves the accuracy of the inversion result, and more accurate north pole sea ice thickness can be obtained.

Description

technical field [0001] The invention belongs to the technical field of satellite remote sensing sea ice thickness inversion, in particular to a method for comprehensively correcting arctic sea ice thickness inversion. Background technique [0002] Sea ice is an important factor in the Earth's climate system, which limits the exchange of heat, moisture, and momentum between the ocean and the atmosphere, and also plays a vital role in ocean circulation and the primary productivity of the Arctic Ocean. Under the background of global warming today, the thickness of Arctic sea ice has declined rapidly in the past few decades. The study of global change is of great significance, so it has received extensive attention from climate research and the international community. [0003] Sea ice thickness is observed by various methods, including submarines, ice mass balance buoys, electromagnetic induction bathymetry, and satellite laser and radar altimetry. The CryoSat2 mission has be...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/25G06F119/02
CPCG06F30/25G06F2119/02Y02A90/10
Inventor 张瑜周意
Owner SHANGHAI OCEAN UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com