Spatial scaling of evapotranspiration as affected by heterogeneities in vegetation, topography, and soil texture

To date, simulating land surface hydrological processes over large areas at spatial resolutions higher than 1 km remains technically unfeasible, because of limitations of data availability and computational resources. Several studies have demonstrated, however, that gridding the land surface into coarse homogeneous pixels may cause important biases on ecosystem model estimations of water budget components at local, regional and global scales. …