包括基本的克里金(Kriging)插值法实现代码，仅实现基本方法部分，不包含扩展克里金方法- kriging uses ordinary kriging to interpolate a variable z measured at locations with the coordinates x and y at unsampled locations xi, yi. The function requires the variable vstruct

干旱指数TVDI的IDL实现代码，希望能对大家有所帮助(It is the code for the TVDI indice,which is used to estimate the drought of the region)

徐涵秋教授提出的遥感生态指数实现的IDL代码(It is the code for the RSEI indice,which is used to estimate the environment)