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hjndvinew
- IDL编写，对环境卫星进行辐射定标并计算NDVI值。程序设计，1、影像分块，在处理大数据时特别有用；2、XML读取，IDL提供了方便的读写XML的方法；3、日期转儒略日算法；4、表观反射率计算方法；5、字符串处理技巧等。 -IDL to prepare for environmental satellite radiometric calibration and calculate NDVI values. Program design, an image block is particul
fcmax_getmean_vimath_clip_resize
- 求长时间序列求年最大及月平均植被覆盖度FC、NDVI；计算各种植被指数NDVI、RVI、SAVI、DVI等；裁剪遥感影像的IDL批处理；重采样影像的IDL批处理-get the max value of the NDVI or FC and so on
caculate_the_optimal_temperature
- 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
hj_ndvi_main
- 环境星计算NDVI,包含辐射定标以及大气校正，有些资料还需收集(The environment star calculates NDVI, including radiometric calibration and atmospheric correction, and some data needs to be collected)
NDVI
- 代码为modis归一化植被指数的计算，格式转换及背景值的填充。(The code is the calculation of the MODIS normalized vegetation index, the format conversion and the filling of the background value.)
test
- 用envi+idl计算ndvi的最大值合成图像，，，(NDVI=ENVI_GET_DATA(fid=fid,dims=dims,pos=0) ind = where(NDVI eq -10) FOR i=1,numTim-1 DO BEGIN FTest_temp = file_test(infiles[i]) if (FTest_temp ne 0 ) then begin print,infiles[i] ENVI_OPE
ndvi
- 基于GEE计算landsat 的植被覆盖度(Calculating ndvi based on GEE)