Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and system for acquiring urban CO2 gridding flux based on satellite-borne laser radar

A laser radar, CO2 technology, applied in the field of satellite remote sensing earth observation, can solve problems such as imperfect application

Active Publication Date: 2021-09-17
WUHAN UNIV
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing CO for satellite products 2 The goal of flux inversion framework design is to provide 1000km-scale CO 2 Flux products, even if optimized, can only provide 100km scale CO 2 Flux product
At the same time, these inversion frameworks are for CO 2 The column concentration product design is not perfect for lidar-based CO 2 Column Concentration Products

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 and system for acquiring urban CO2 gridding flux based on satellite-borne laser radar
  • Method and system for acquiring urban CO2 gridding flux based on satellite-borne laser radar
  • Method and system for acquiring urban CO2 gridding flux based on satellite-borne laser radar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] In order to obtain small-scale (0.1° or 10km) urban CO 2 Gridded flux, the present invention proposes to use the Lagrangian particle diffusion model to calculate the reverse footprint of the specified three-dimensional space-time position (date, time, longitude, latitude and altitude), and then rely on the existing anthropogenic CO 2 Emission fluxes and biogenic CO 2 Flux (NEE) construction prior CO 2 The gridded flux field and its space-time covariance rely on the above two data sets to establish the quantitative relationship between the flux field and the concentration field, and use Bayesian inversion to obtain the optimized posterior CO 2 Gridded flux products.

[0029] see figure 1 , an embodiment of the present invention provides a method for acquiring urban CO2 gridded flux based on spaceborne lidar, comprising the following steps:

[0030] Step S1, accurate settlement of satellite sub-satellite point position: obtain CO as needed 2 The spatial range and tim...

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 provides a method and system for obtaining urban CO2 gridding flux based on a satellite-borne laser radar. The method comprises the steps that: a reverse footprint of a designated three-dimensional space-time position is calculated through employing a Lagrange particle diffusion model, wherein the designated three-dimensional space-time position comprises the date, time, longitude, latitude and height; a prior CO2 gridding flux field and a space-time covariance of the prior CO2 gridding flux field are constructed by depending on existing man-made CO2 emission flux and biological CO2 flux; and a quantitative relationship between a flux field and a concentration field is established, and an optimized posterior CO2 gridding flux product is obtained by utilizing Bayesian inversion. According to the method, the 0.1-degree resolution CO2 gridding flux can be obtained by using atmospheric CO2 column concentration data detected by the satellite-borne laser radar. The method is suitable for CH4 gridding flux inversion of a spaceborne CH4 detection laser radar and gridding flux inversion of a ground-based laser radar greenhouse gas concentration product at the same time.

Description

technical field [0001] The invention relates to the technical field of satellite remote sensing and earth observation, and relates to a gridded CO 2 Flux acquisition scheme. Background technique [0002] IPDA LIDAR is the abbreviation of integrated path differential absorption LIDAR, and the Chinese translation is path integral differential absorption lidar. Since 2010, the United States, Europe and China have successively launched projects for spaceborne CO 2 Probing the IPDA LIDAR project. After 2021, relevant payloads will gradually enter orbit and begin continuous earth observation. Devices of this type are available globally in CO 2 Column weighted concentration. The original intention of these satellite programs is to obtain more accurate CO2 measurements on the intercontinental scale of ~1000 km. 2 flux product. However, with the conclusion of the "Paris Climate Agreement" in recent years, the world is accelerating towards the goal of carbon neutrality. Theref...

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
IPC IPC(8): G01S17/95G01S7/48
CPCG01S17/95G01S7/4802Y02A90/10
Inventor 韩舸嵇晓岚苏航邱偌楠马昕龚威
Owner WUHAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com