Soil humidity cuboid inversion model construction method and system

A technology of inversion model and soil moisture, applied in special data processing applications, measuring devices, instruments, etc.

Active Publication Date: 2019-12-24
BEIJING NORMAL UNIVERSITY
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Problems solved by technology

[0004] However, due to the complexity of the actual surface, the method of inverting soil moisture only considering a single band or a single feature has limitations, and it is easy to have large errors in the soil moisture inversion process

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  • Soil humidity cuboid inversion model construction method and system
  • Soil humidity cuboid inversion model construction method and system
  • Soil humidity cuboid inversion model construction method and system

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Embodiment Construction

[0070] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0071] The purpose of the present invention is to provide a method and system for constructing a soil moisture cuboid inversion model, which integrates climate, soil and vegetation influence factors, and improves the accuracy of soil moisture inversion.

[0072] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompan...

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Abstract

The invention discloses a soil humidity cuboid inversion model construction method and system. The method comprises the following steps of acquiring the climate soil vegetation data of a to-be-inverted area in a certain time period; respectively calculating the climate characteristic parameters, soil characteristic parameters and vegetation characteristic parameters; respectively calculating the correlation between the measured data of the soil at different depths and the climate characteristic parameters, the soil characteristic parameters and the vegetation characteristic parameters; respectively selecting the optimal parameters of the characteristic parameters, and determining each side length coefficient of the soil humidity cuboid inversion model of the to-be-inverted area by adoptingan analytic hierarchy process; and constructing the soil humidity cuboid inversion model of the to-be-inverted area. By comprehensively processing the climate soil vegetation data of the to-be-inverted area in the certain time period, the climate characteristic parameters, the soil characteristic parameters and the vegetation characteristic parameters are respectively obtained, and the cuboid inversion model is constructed, so that the obtained cuboid inversion model can better reflect the real soil humidity condition of the to-be-inverted area, and the soil humidity inversion precision is improved.

Description

technical field [0001] The invention relates to the technical field of soil moisture measurement, in particular to a method and system for constructing a soil moisture cuboid inversion model. Background technique [0002] Soil moisture is a non-negligible component in water cycle, energy cycle and biogeochemical cycle, which is of great significance to the research of water resource management, agricultural production and climate change. In terms of data acquisition methods, soil moisture monitoring is divided into site-based soil moisture observation, soil moisture simulation and assimilation based on meteorological data and geographic data, and soil moisture inversion based on remote sensing data. Among them, the measurement depth and accuracy of measuring soil moisture at stations are relatively high, but due to the spatial heterogeneity of soil moisture, station observations cannot fully characterize the soil moisture in the region. The soil moisture data simulated by t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G01D21/02
CPCG01D21/02
Inventor 朱秀芳潘耀忠王俊霞刘莹
Owner BEIJING NORMAL UNIVERSITY
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