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Added capability for cdmbgwd(1) to scale GSL blocking drag #879

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Merged
grantfirl merged 2 commits into from
Mar 30, 2022
Merged

Added capability for cdmbgwd(1) to scale GSL blocking drag #879

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a31d08b
Added capability for cdmbgwd(1) to scale GSL blocking drag
mdtoyNOAA Mar 11, 2022
34d0bbe
Merge branch 'main' of https://github.com/NCAR/ccpp-physics into main…
mdtoyNOAA Mar 29, 2022
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6 changes: 4 additions & 2 deletions physics/drag_suite.F90
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Original file line number Diff line number Diff line change
Expand Up @@ -531,7 +531,8 @@ subroutine drag_suite_run( &
! non-dim sub grid mtn drag Amp (*j*)
! cdmb = 1.0/float(IMX/192)
! cdmb = 192.0/float(IMX)
cdmb = 4.0 * 192.0/float(IMX)
! New cdmbgwd addition for GSL blocking drag
cdmb = 1.0
if (cdmbgwd(1) >= 0.0) cdmb = cdmb * cdmbgwd(1)

!>-# Orographic Gravity Wave Drag Section
Expand Down Expand Up @@ -1237,7 +1238,8 @@ subroutine drag_suite_run( &
!--------- compute flow-blocking stress
!
cd = max(2.0-1.0/od(i),0.0)
taufb(i,kts) = 0.5 * roll(i) * coefm(i) / &
! New cdmbgwd addition for GSL blocking drag
taufb(i,kts) = cdmb * 0.5 * roll(i) * coefm(i) / &
max(dxmax_ls,dxy(i))**2 * cd * dxyp(i) * &
olp(i) * zblk * ulow(i)**2
tautem = taufb(i,kts)/float(kblk-kts)
Expand Down