DETERMINATION OF SOIL LINE USING REMOTELY SENSED DATA

摘要

The purpose of my research is to determine the Mongolian soil line using remote sensing data, ArcGIS and ENVI. To determine the soil line, we define which indices can be calculated in different zones. The soil line is a linear relationship between the near-infrared (NIR) and (RED) reflectance of bare soil as characterized by the slope and intercept parameters. The soil line is characteristic of the soil type and is used to define vegetation indices which allow for the subtraction of the effects of soil optical properties from spectra. Perpendicular Vegetation Index (PV1) is calculated using the soil line while Normalized Differenet Vegetation Index (NDVI) and Modified Soil Adjusted Vegetation Index (MSAVI) are calculated using only ground truth.