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Evaluate floating condition when calculating beta when marine check is on #10

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Evaluate floating condition when calculating beta when marine check is on #10

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cc516aa
Evaluate floating condition when calculating beta when marine check i…
matthewhoffman Sep 9, 2024
5138e13
Fixup: define icestar properly on init if checkmarine is false
matthewhoffman Oct 4, 2024
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33 changes: 25 additions & 8 deletions sl_model_mod.f90
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Original file line number Diff line number Diff line change
Expand Up @@ -671,10 +671,27 @@ subroutine sl_solver_init(itersl, starttime, mali_iceload, mali_bedrock, mali_ma
close(201)

!========================== beta function =========================
if (checkmarine) then
write(unit_num,*) 'Performing Marine Check for initial beta'
do j = 1,2*nglv
do i = 1,nglv
if (tinit_0(i,j) > 0) then
! If not marine...
icestarxy(i,j) = icexy(i,j,1)
elseif (icexy(i,j,1) > (abs(tinit_0(i,j)) * rhow / rhoi)) then
!...else if marine, but thick enough to be grounded
icestarxy(i,j) = icexy(i,j,1)
else
!...if floating ice
icestarxy(i,j) = 0.0
endif
enddo
enddo
endif
! calculate initial beta
do j = 1,2*nglv
do i = 1,nglv
if (icexy(i,j,1)==0) then
if (icestarxy(i,j) < epsilon(0.0)) then
beta0(i,j)=1
else
beta0(i,j)=0
Expand Down Expand Up @@ -757,15 +774,15 @@ subroutine sl_solver_init(itersl, starttime, mali_iceload, mali_bedrock, mali_ma
icestarxy(i,j) = icexy(i,j,1)
else
!...if floating ice
icestarxy(i,j) = 0
icestarxy(i,j) = 0.0
endif
enddo
enddo
! Decompose ice field
call spat2spec(icestarxy(:,:),icestarlm(:,:),spheredat)
else ! If not checking for floating ice
call spat2spec(icexy(:,:,1),icestarlm(:,:),spheredat) ! Decompose ice field
icestarxy(:,:) = icexy(:,:,1)
endif
call spat2spec(icestarxy(:,:),icestarlm(:,:),spheredat)

ice_volume = icestarlm(0,0)*4*pi*radius**2

Expand Down Expand Up @@ -1084,15 +1101,15 @@ subroutine sl_solver(itersl, iter, dtime, starttime, mali_iceload, mali_mask, sl
icestarxy(i,j) = icexy(i,j,n)
else
!...if floating ice
icestarxy(i,j) = 0
icestarxy(i,j) = 0.0
endif
enddo
enddo
! Decompose ice field
call spat2spec(icestarxy(:,:),icestarlm(:,:),spheredat)
else ! If not checking for floating ice
call spat2spec(icexy(:,:,n),icestarlm(:,:),spheredat) ! Decompose ice field
icestarxy(:,:) = icexy(:,:,n)
endif
call spat2spec(icestarxy(:,:),icestarlm(:,:),spheredat)

if (n == 1) then
dicestarlm(:,:) = 0.0 ! No change at first timestep
Expand All @@ -1115,7 +1132,7 @@ subroutine sl_solver(itersl, iter, dtime, starttime, mali_iceload, mali_mask, sl
! Calculate current beta based on iceload at the current timestep
do j = 1, 2 * nglv
do i = 1, nglv
if (icexy(i, j, nfiles) < epsilon(0.0)) then
if (icestarxy(i,j) < epsilon(0.0)) then
beta(i,j) = 1
else
beta(i,j) = 0
Expand Down