Soil physical property and remote sensing data fused surface soil water content inversion method

• Main Authors: GAN LEI, LI ZHENBAO, YAN HONGBO, LU XIANJIAN, LIANG YUEJI, WEI WANQIU
• Format: Patent
• Language: Chinese; English
• Published: 10.05.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention discloses a surface soil water content inversion method fusing soil physical characteristics and remote sensing data. The method comprises the following steps: constructing an input data set; selecting a vegetation coverage index FVC and a surface temperature T * to construct a T *-FVC feature space; calculating a surface soil water content relative index M0 according to the feature space; according to soil test point data, a statistical model of soil saturated volumetric water content and soil porosity is established, and the saturated volumetric water content of each pixel of different types of soil is calculated according to the model. And finally, coupling the soil water content relative index M0 with the soil saturation volumetric water content and the wilting point surface soil volumetric water content, and constructing a surface soil volumetric water content quantitative inversion model. According to the model, soil physical characteristics and remote sensing data are fused for surface so