Method for measuring soil water content
A soil water content and vegetation technology, which is applied in the field of soil water content detection, can solve the problems of poor reliability, lack of relevant model support, and insufficient use of visible light feature space information, etc., and achieves the effect of high measurement accuracy.
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[0031] In order to make the purpose, content, and advantages of the present invention clearer, the implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0032] Such as figure 1 As shown, the present invention proposes visible near-infrared and thermal infrared remote sensing data quantitative calculation soil water content method comprises the following steps:
[0033] S1. Calculate TVDI (Temperature / Vegetation Dryness Index, Temperature Drought Vegetation Index) using remote sensing data (usually image data) in visible light, near infrared and thermal infrared bands to obtain the first TVDI feature space (in this embodiment, surface temperature and The feature space formed by NDVI can also be the feature space formed by vegetation temperature and NDVI, see below for the explanation of NDVI), the calculation formula is as follows:
[0034] TVDI = ...
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