Discussion created by gismare on Sep 6, 2012
Latest reply on Jan 8, 2013 by jevans02
I've found from numerous cross-validations that when incorporating elevation data from DEM's into the co-kriging interpolation of rainfall data, that the resolution of the auxiliary data (i.e. DEM's) has some bearing on the resultant RMSE. In fact, some of the more coarser DEM's managed to produce fewer errors. I wondered if you had any suggestions for these observations? Perhaps the link between elevation and precipitation is only significant in these models at larger scales?

Many Thanks.