The implementation of the ArcGIS Cell Statistics with the Ndvi maximum value method MVC synthesis

Purpose : The maximum value of NDVI year or month is synthesized by using ArcGIS's own tool cell statistics to achieve multiple raster layer maximum values.

Tools : arctoolbox>>spatial Analyst Tools>>local>>cell Statistics

Issue : The NDVI raster image value is a float floating point between -1~1, directly using the Cell statistics evaluates to an int binary graph with a value of 0 or 1, not a floating-point type.

workaround : Use cell statistics calculate the maximum value of the float value Ndvi value multiplied by 10000 to int type, and then use cell statistics the maximum value, get the int type maximum and then divide by 10000.0 to revert to float floating point type.

note : Flotat->int and Int->float conversions can be implemented with raster calculator.