Modified Soil Adjusted Vegetation Index, (M)SAVI image of 2003 ASTER image

Modified Soil-Adjusted vegetation index (MSAVI) produced from the 2003 ASTER image. MSAVI is a means of monitoring density and vigour of green vegetation growth using the spectral reflectivity of solar radiation. It is specifically designed for areas with low vegetation, such as arid lands, where soil reflectance in the signal is high. The index is intended to minimize the effect of bare soil.

修正土壤调节植被指数（Modified Soil-Adjusted Vegetation Index，MSAVI）由2003年的ASTER影像生成。该指数利用太阳辐射的光谱反射率，监测绿色植被的生长密度与活力，专为植被覆盖度较低的区域（如干旱地区）设计——这类区域的遥感信号中土壤反射占比极高，旨在最大限度削弱裸土的影响。