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Fix: Correct grass albedo LAI-albedo relationship #1135

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Fix: Correct grass albedo LAI-albedo relationship #1135

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4 changes: 3 additions & 1 deletion src/suews/src/suews_phys_dailystate.f95
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Original file line number Diff line number Diff line change
Expand Up @@ -499,7 +499,9 @@ SUBROUTINE update_Veg( &
iv = ivGrass
IF ((LAI_id(iv) - LAI_id_prev(iv)) /= 0) THEN
deltaLAIGrass = (LAI_id(iv) - LAI_id_prev(iv))/(LAImax(iv) - LAIMin(iv))
albChangeGrass = (AlbMax_Grass - AlbMin_Grass)*deltaLAIGrass
! Grass has reversed LAI-albedo relationship: higher LAI -> lower albedo
! (bright soil/litter background replaced by absorbing canopy)
albChangeGrass = (AlbMin_Grass - AlbMax_Grass)*deltaLAIGrass
END IF

iv = ivDecid
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