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Monitoring Method of Regional Actual Irrigated Area Based on Optical and Radar Remote Sensing Data

A technology of remote sensing data and irrigation area, applied in data processing applications, image data processing, machine learning, etc., can solve problems such as poor response to changes, changes in backscatter coefficients, and coarse spatial resolution, so as to promote irrigation detection and eliminate The effect of uncertainty

Inactive Publication Date: 2021-11-26
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of method is currently affected by multiple factors of the change of radar backscatter coefficient, which still needs further research
(4) Soil moisture detection methods combined with surface evapotranspiration and soil moisture remote sensing inversion. This type of method needs to combine soil moisture remote sensing inversion results such as SMAP, and the spatial resolution is relatively coarse.
At present, the traditional methods based on the threshold value of optical vegetation index and the extraction method of irrigation area based on remote sensing surface temperature have poor response to changes in soil and vegetation water content caused by irrigation activities, and there are often large uncertainties in the extracted irrigation area and area.

Method used

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  • Monitoring Method of Regional Actual Irrigated Area Based on Optical and Radar Remote Sensing Data
  • Monitoring Method of Regional Actual Irrigated Area Based on Optical and Radar Remote Sensing Data
  • Monitoring Method of Regional Actual Irrigated Area Based on Optical and Radar Remote Sensing Data

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] (1) Collection of basic data in the study area

[0065] Determine the geographical location and boundary of the research area according to the research needs. Collect the main crops planted in the region and the phenological periods of the main crops, and collect the agricultural calendar information of the main crops in the region. The agricultural calendar information of the main crops in the research area includes the perennial irrigation time of the main crops. In this embodiment, a lookup table of perennial irrigation time for main crops in the research area will be made based on the survey information. Based on this lookup table, the fast query of the main irrigation time of corresponding crops can be realized.

[0066] (2) Optical and radar satellite remote sensing data collection in the study area

[0067] Collect optical and radar satellite remote sensing data in the research area according to the needs of the research area. The method mentioned in the pres...

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Abstract

The invention proposes a monitoring method for regional actual irrigation area based on optical and radar remote sensing data, which combines the short-wave infrared index sensitive to changes in soil and vegetation moisture content and the change of radar backscatter coefficient, and based on satellite remote sensing data, can monitor regional irrigation. Activities are dynamically detected to achieve accurate extraction of irrigated areas.

Description

technical field [0001] The invention relates to the technical field of agricultural water resource monitoring and management, and is a dynamic monitoring method for regional actual irrigation area based on optical and radar time-series remote sensing data, which can serve irrigation area water resource management, agricultural water use efficiency evaluation, agricultural water conservation, and regional human consumption. Application areas such as impact assessment of water use activities and modern management of irrigation areas. Background technique [0002] The dynamic monitoring of regional actual irrigated area is the basis of agricultural water resource management, agricultural water use efficiency assessment, agricultural water conservation, regional human activity impact assessment, irrigation area modernization management, watershed water resource management and other application fields. Agriculture is the largest water user in my country, accounting for more than ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/34G06K9/62G06N20/00G06T7/136G06T7/62G06Q50/02
CPCG06N20/00G06T7/136G06T7/62G06Q50/02G06T2207/10044G06T2207/10036G06T2207/30188G06V20/188G06V10/267G06F18/2135G06F18/24G06F18/214
Inventor 杨永民李璐顾涛吴迪徐磊杨鹏黄诗峰杨昆江威
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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