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

Method of interpolating eddy flux observed data missing from the surface by using ALPHA invariant method

An observation data and flux technology, applied in the direction of electric digital data processing, special data processing applications, measurement devices, etc., can solve the problems of lack of ground flux observation data, etc., and achieve reliable results, strong operability, and easy The effect of the operation

Active Publication Date: 2018-12-11
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS +1
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual observation, the lack of surface flux observation data due to meteorological reasons, instrument and system failures, and data quality control is common. Therefore, it is necessary to develop a reliable interpolation of ground-missing eddy flux observation The data method is of great significance for quickly and accurately obtaining the continuous change process of the eddy flux at the site and small regional scale

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 of interpolating eddy flux observed data missing from the surface by using ALPHA invariant method
  • Method of interpolating eddy flux observed data missing from the surface by using ALPHA invariant method
  • Method of interpolating eddy flux observed data missing from the surface by using ALPHA invariant method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0063] A method for interpolating ground-missing eddy flux observation data using the ALPHA invariant method, comprising the following steps:

[0064] S1: constructing the input data set required by the method;

[0065] The S1 specifically includes:

[0066] Preliminary construction of the input data set using the ALPHA invariant method to interpolate the missing eddy flux observation data on the ground, acquisition of relevant data, and data preprocessing of the acquired flux data. That is, first obtain the eddy correlation and energy balance flux observation data and meteorological observation data at half-hour time intervals, including the latent heat flux observation data, denoted as LE i ; Sensible heat flux observation data, denoted as H i ;Soil heat flux observation data, denoted as G i ; Net radiation data, denoted as Rn i ; and meteorological observation data.

[0067] S2: For the target time period with some missing eddy flux observation data, calculate the aver...

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 belongs to the technical field of surface flux observation data processing and relates to a method of interpolating eddy flux observation data missing from the surface by using an ALPHAinvariant method. The method of the invention comprises the following steps: constructing an input data set required by the method; calculating the average latent heat flux, soil heat flux and net radiation for the target time period in which the eddy flux observation data were partially missing; based on the Priestley-Taylor equation, obtaining the average ALPHA value at the time when the corresponding time period is not missing according to the above average value; based on the characteristic of ALPHA keeping constant, taking the average ALPHA value as the ALPHA value at the time of missingdata, and interpolating the flux at the time of missing data of surface eddy flux observation according to the above equation and the equation of surface energy balance. The method is very important to estimate and validate the latent heat flux and sensible heat flux by remote sensing quickly and accurately.

Description

technical field [0001] The invention belongs to the technical field of surface flux observation data processing, and in particular relates to a method for interpolating missing eddy flux observation data on the ground using an ALPHA invariant method. Background technique [0002] Flux observation research based on eddy correlation technology is currently the most direct technique for quantitative determination of surface energy balance and energy flux. Flux observation data are extremely important measured data in the study of surface energy balance and water cycle on regional and global scales. However, due to the limitations of flux observation technology and environmental conditions, before the release of flux observation data, a series of processing must be performed on the flux observation data measured at the site to control the data quality, including WPL correction, coordinate axis A series of processes such as rotation and outlier removal. At the same time, due to...

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): G06F17/30G01D21/02
CPCG01D21/02
Inventor 唐荣林刘萌李召良姜亚珍王桐邸苏闯
Owner INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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