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The value is specified by the parameter ResSurface given in a table (see Evapotranspiration – single canopy). | |
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The surface (canopy) resistance is defined as a driving variable in the PLANT driving variable file. The surface resistance is defined by the name RESSURF in the identification field of the PG-variable. | |
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The surface resistance will be calculated from the leaf area index and the Lohammar equation during the whole year (see Evapotranspiration – single canopy or Evapotranspiration - multiple canopies). | |
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The surface resistance will be calculated from the leaf area index and the Lohammar equation during the “growing season”. The growing season starts when the actual day number exceeds the parameter DayNumber(Index=1) as given by the PlantDevelopment switch. |