Modified soil adjusted vegetation index for the Death Valley regional flow system, Nevada and California

The raster-based Modified Soil Adjusted Vegetation Index was
derived from Landsat Thematic Mapper imagery data acquired
during June 1992 for the Death Valley regional flow system.
The index has been shown to increase the dynamic range of
the vegetation signal while further minimizing the soil
background influences, resulting in greater vegetation
sensitivity as defined by a "vegetation signal" to
"soil noise" ratio. The data set was used in determining
phreatophyte boundaries for a ground-water evapotranspiration
study and relative differences in vegetation density between
discharge areas.

本数据集为基于栅格的修正土壤调整植被指数（Modified Soil Adjusted Vegetation Index），其数据源自1992年6月采集的、用于死亡谷区域流动系统研究的陆地卫星专题制图仪（Landsat Thematic Mapper）影像。现有研究表明，该指数可提升植被信号的动态范围，同时进一步削弱土壤背景的干扰，进而基于“植被信号-土壤噪声”比值提升植被监测灵敏度。本数据集曾应用于一项地下水蒸散发研究，用于划定潜生植物（phreatophyte）边界，以及分析不同地下水排泄区之间的植被密度相对差异。