Influence of subgrid-scale heterogeneity in leaf area index, stomatal resistance, and soil moisture on grid-scale land-atmosphere interactions

G. B. Bonan, D. Pollard, S. L. Thompson

Research output: Contribution to journalArticlepeer-review

97 Scopus citations

Abstract

Comparisons between energy fluxes obtained using parameter values for the average of 100 subgrid points and the average fluxes for the 100 subgrid points showed minor differences for emitted infrared radiation and reflected solar radiation, but large differences for sensible heat and evapotranspiration. Leaf area index was the most important parameter; stomatal resistances were only important on wet soils. Interactions among parameters increased the nonlinearity of land-atmosphere energy exchange. When considered separately, six to ten values of each parameter greatly reduced the deviation between the two flux estimates. However, this approach became cumbersome when all four parameters varied independently. -from Authors

Original languageEnglish (US)
Pages (from-to)1882-1897
Number of pages16
JournalJournal of Climate
Volume6
Issue number10
DOIs
StatePublished - 1993

All Science Journal Classification (ASJC) codes

  • Atmospheric Science

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