Evapotranspiration and runoff from large land areas: land surface hydrology for atmospheric general circulation models

J. S. Famiglietti, Eric F. Wood

Research output: Contribution to journalArticle

73 Scopus citations

Abstract

The parameterization incorporates subgrid scale variability in topography, soils, soil moisture and precipitation. The framework of the model is the statistical distribution of a topography-soils index, which controls the local water balance fluxes, and is therefore taken to represent the large land area. Spatially variable water balance fluxes are integrated with respect to the topography-soils index to yield our large scale parameterizations: water balance calculations are performed for a number of intervals of the topography-soils distribution, and interval responses are weighted by the probability of occurrence of the interval. Grid square average land surface fluxes result. The model functions independently as a macroscale water balance model. Runoff ratio and evapotranspiration efficiency parameterizations are derived and are shown to depend on the spatial variability of the above mentioned properties and processes, as well at the dynamics of land surface-atmosphere interactions. -from Authors

Original languageEnglish (US)
Pages (from-to)179-204
Number of pages26
JournalUnknown Journal
StatePublished - Jan 1 1991

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

Fingerprint Dive into the research topics of 'Evapotranspiration and runoff from large land areas: land surface hydrology for atmospheric general circulation models'. Together they form a unique fingerprint.

  • Cite this