Research Article

Spatial Downscaling of TRMM Precipitation Using Geostatistics and Fine Scale Environmental Variables

Table 1

Predictive performance evaluation results.

Downscaling without DEM and NDVI using
area-to-point kriging
Downscaling
with DEM and NDVI using
area-to-point residual kriging
Downscaling
with DEM and NDVI using
ordinary kriging
of residuals

MAE19.9813.0317.73
Relative improvement of MAE34.78%11.30%
RMSE27.4920.0324.81
Relative improvement of RMSE27.14%9.75%