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Method for performing remote-sensing monitoring on soil moisture content

A technology of soil moisture content and remote sensing monitoring, which is applied in the field of environmental remote sensing, can solve the problems of soil moisture improvement accuracy limitation, and achieve the effect of high accuracy

Inactive Publication Date: 2011-11-23
王桥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology helps predict how much rainwater will be absorbed by crops during different stages of their growth process based on local factors like rainfall or snow cover. It makes it easier for farmers to plan better ways they use less water than usual while still ensuring that crop yields are maintained at an acceptable level.

Problems solved by technology

This patented technical problem addressed in this patents relates to developing remote sensors capable of measuring localized areas accurately without being affected by uneven surfaces like sand dunes during farming activities. Existing techniques require long periods of laboratory analysis and cannot be applied frequently because they involve expensive equipment and human effort.

Method used

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  • Method for performing remote-sensing monitoring on soil moisture content
  • Method for performing remote-sensing monitoring on soil moisture content
  • Method for performing remote-sensing monitoring on soil moisture content

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Embodiment Construction

[0028] The soil water content remote sensing monitoring method proposed by the present invention is described in detail as follows in conjunction with the accompanying drawings and examples.

[0029] The Earth Observation System (EOS) series satellites are used to conduct atmospheric physical and chemical observations and land, hydrology, climate, and environmental surveys using satellite remote sensing technology, to obtain various comprehensive information on natural environmental resources more accurately, and to grasp the overall status of the earth's environmental resources and Its changing trend, the most important instrument on it is Moderate-resolution Imaging Spectroradiometer (MODIS, Moderate-resolution Imaging Spectroradiometer), its maximum spatial resolution can reach 250 meters, and the scanning width is 2330 kilometers. MODIS is a new generation of "map-integrated" optical remote sensing instrument in the world. It has 36 discrete spectral bands, including near-i...

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Abstract

The invention discloses a method for performing remote-sensing monitoring on soil moisture content. The method comprises the following steps of: S1, analyzing the spectral characteristic of soil moisture in a short wave infrared band, and selecting the short wave infrared band which is used for monitoring the soil moisture; S2, constructing a short wave infrared drought index based on remote sensing date according to the selected short wave infrared band; S3, acquiring the observation data of the soil moisture in an area to be monitored; and S4,establishing an area relationship model of the drought index and the soil moisture according to the drought index and the observation data of the soil moisture, and determining the soil moisture and the drought condition of the area to be monitored. By the method, the soil moisture/drought condition of the area can be estimated quickly and effectively so as to guide the agricultural production, water resources planning and the like, and the accuracy is high.

Description

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Claims

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Application Information

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Owner 王桥
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