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Another fix for tall canopies when differencing. #115

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Feb 11, 2024
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Another fix for tall canopies when differencing. #115

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12 changes: 10 additions & 2 deletions src/canopy_bioemi_mod.F90
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Original file line number Diff line number Diff line change
Expand Up @@ -181,7 +181,11 @@ SUBROUTINE CANOPY_BIO( ZK, FCLAI, FCH, LAI, FSUN, PPFD_SUN, &
if (VERT .eq. 0) then !Full 3D leaf-level biogenic emissions (no averaging, summing, or integration)
do i=1, SIZE(ZK)
if (ZK(i) .gt. 0.0 .and. ZK(i) .le. FCH) then ! above ground level and at/below canopy top
FLAI(i) = ((FCLAI(i+1) - FCLAI(i)) * LAI)/MODRES !fractional LAI in each layer converted to LAD (m2 m-3)
if (i .lt. MODLAYS) then
FLAI(i) = ((FCLAI(i+1) - FCLAI(i)) * LAI)/MODRES !fractional LAI in each layer converted to LAD (m2 m-3)
else
FLAI(i) = FLAI(MODLAYS-1)
end if
EMI_OUT(i) = FLAI(i) * EF * GammaTLEAF_AVE(i) * GammaPPFD_AVE(i) * GAMMACO2 * CCE * GAMMALEAFAGE ! (ug m-3 hr-1)
EMI_OUT(i) = EMI_OUT(i) * 2.7777777777778E-13_rk !convert emissions output to (kg m-3 s-1)
end if
Expand All @@ -191,7 +195,11 @@ SUBROUTINE CANOPY_BIO( ZK, FCLAI, FCH, LAI, FSUN, PPFD_SUN, &
LAYERS = min((floor(FCH/MODRES) + 1),MODLAYS)
do i=1, SIZE(ZK)
if (ZK(i) .gt. 0.0 .and. ZK(i) .le. FCH) then
FLAI(i) = ((FCLAI(i+1) - FCLAI(i)) * LAI)/MODRES !fractional LAI in each layer converted to LAD (m2 m-3)
if (i .lt. MODLAYS) then
FLAI(i) = ((FCLAI(i+1) - FCLAI(i)) * LAI)/MODRES !fractional LAI in each layer converted to LAD (m2 m-3)
else
FLAI(i) = FLAI(MODLAYS-1)
end if
end if
end do
do i=1, SIZE(ZK)
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