用SEBAL模型计算NPP中的植被生长的最适温度，用最大的NDVI来定义植被生长的最适温度，计算过程请参考文献，这个代码是用Python编写的小程序-SEBAL model calculated by the NPP in the optimum temperature for the growth of vegetation, with the greatest vegetation NDVI to define the optimum temperature for the growth o