Comment on 'Estimating the distribution of snow water equivalent using remotely sensed snow cover data and a spatially distributed snowmelt model: A multi-resolution, multi-sensor comparison'

摘要

As has been demonstrated, the uncertainties associated with the reconstruction method applied by MM08 are large enough that they outweigh its ability to assess the utility of various remotely sensed products or to be a reliable approach for obtaining high-resolution SWE estimates over the basin. We have demonstrated that there are numerous issues with the forcing, parameters and structure of the snowmelt model as implemented by MM08, which means that the model output is unsuitable for use as validation "data"; we have demonstrated that the MM08 approach of ignoring melt season precipitation can introduce substantial biases into the SWE reconstruction; and we have demonstrated that errors introduced by the MM08 temporal SCA interpolation method can result in large differences in SWE reconstruction.