Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Update Icepack Consortium main #390fb5518326217c2501dbf5, Sept 30, 2023 #33

Merged
merged 2 commits into from
Sep 30, 2023
Merged

Update Icepack Consortium main #390fb5518326217c2501dbf5, Sept 30, 2023 #33

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
390fb55
define parameter tscale_pnd_drain = 1 / lambda_pond; fix units and dp…
eclare108213 Sep 30, 2023
6a64845
Merge branch 'main' of https://github.com/cice-consortium/icepack int…
apcraig Sep 30, 2023
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion columnphysics/icepack_itd.F90
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1495,7 +1495,7 @@ subroutine zap_snow_temperature(dt, ncat, &
real (kind=dbl_kind) :: &
rnslyr , & ! real(nslyr)
hsn , & ! snow thickness (m)
zqsn , & ! snow layer enthalpy (J m-2)
zqsn , & ! snow layer enthalpy (J m-3)
zTsn , & ! snow layer temperature (C)
Tmax ! maximum allowed snow temperature

Expand Down
13 changes: 10 additions & 3 deletions columnphysics/icepack_parameters.F90
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -108,6 +108,7 @@ module icepack_parameters
! freshwater value needed for enthalpy
depressT = 0.054_dbl_kind ,&! Tf:brine salinity ratio (C/ppt)
viscosity_dyn = 1.79e-3_dbl_kind, & ! dynamic viscosity of brine (kg/m/s)
tscale_pnd_drain = c10 ,&! mushy macroscopic drainage timescale (days)
Tocnfrz = -1.8_dbl_kind ,&! freezing temp of seawater (C),
! used as Tsfcn for open water
Tffresh = 273.15_dbl_kind ,&! freezing temp of fresh ice (K)
Expand Down Expand Up @@ -331,7 +332,7 @@ module icepack_parameters
frzpnd = 'cesm' ! pond refreezing parameterization

real (kind=dbl_kind), public :: &
dpscale = c1, & ! alter e-folding time scale for flushing
dpscale = 0.001_dbl_kind,& ! alter e-folding time scale for flushing (ktherm=1)
rfracmin = 0.15_dbl_kind, & ! minimum retained fraction of meltwater
rfracmax = 0.85_dbl_kind, & ! maximum retained fraction of meltwater
pndaspect = 0.8_dbl_kind, & ! ratio of pond depth to area fraction
Expand Down Expand Up @@ -440,7 +441,7 @@ subroutine icepack_init_parameters( &
rhos_in, rhoi_in, rhow_in, cp_air_in, emissivity_in, &
cp_ice_in, cp_ocn_in, hfrazilmin_in, floediam_in, &
depressT_in, dragio_in, thickness_ocn_layer1_in, iceruf_ocn_in, &
albocn_in, gravit_in, viscosity_dyn_in, &
albocn_in, gravit_in, viscosity_dyn_in, tscale_pnd_drain_in, &
Tocnfrz_in, rhofresh_in, zvir_in, vonkar_in, cp_wv_in, &
stefan_boltzmann_in, ice_ref_salinity_in, &
Tffresh_in, Lsub_in, Lvap_in, Timelt_in, Tsmelt_in, &
Expand Down Expand Up @@ -523,6 +524,7 @@ subroutine icepack_init_parameters( &
cp_ocn_in, & ! specific heat of ocn (J/kg/K)
depressT_in, & ! Tf:brine salinity ratio (C/ppt)
viscosity_dyn_in, & ! dynamic viscosity of brine (kg/m/s)
tscale_pnd_drain_in,&! mushy macroscopic drainage timescale (days)
Tocnfrz_in, & ! freezing temp of seawater (C)
Tffresh_in, & ! freezing temp of fresh ice (K)
Lsub_in, & ! latent heat, sublimation freshwater (J/kg)
Expand Down Expand Up @@ -866,6 +868,7 @@ subroutine icepack_init_parameters( &
if (present(albocn_in) ) albocn = albocn_in
if (present(gravit_in) ) gravit = gravit_in
if (present(viscosity_dyn_in) ) viscosity_dyn = viscosity_dyn_in
if (present(tscale_pnd_drain_in) ) tscale_pnd_drain = tscale_pnd_drain_in
if (present(Tocnfrz_in) ) Tocnfrz = Tocnfrz_in
if (present(rhofresh_in) ) rhofresh = rhofresh_in
if (present(zvir_in) ) zvir = zvir_in
Expand Down Expand Up @@ -1165,7 +1168,8 @@ subroutine icepack_query_parameters( &
p333_out, p666_out, spval_const_out, pih_out, piq_out, pi2_out, &
rhos_out, rhoi_out, rhow_out, cp_air_out, emissivity_out, &
cp_ice_out, cp_ocn_out, hfrazilmin_out, floediam_out, &
depressT_out, dragio_out, thickness_ocn_layer1_out, iceruf_ocn_out, albocn_out, gravit_out, viscosity_dyn_out, &
depressT_out, dragio_out, thickness_ocn_layer1_out, iceruf_ocn_out, &
albocn_out, gravit_out, viscosity_dyn_out, tscale_pnd_drain_out, &
Tocnfrz_out, rhofresh_out, zvir_out, vonkar_out, cp_wv_out, &
stefan_boltzmann_out, ice_ref_salinity_out, &
Tffresh_out, Lsub_out, Lvap_out, Timelt_out, Tsmelt_out, &
Expand Down Expand Up @@ -1256,6 +1260,7 @@ subroutine icepack_query_parameters( &
cp_ocn_out, & ! specific heat of ocn (J/kg/K)
depressT_out, & ! Tf:brine salinity ratio (C/ppt)
viscosity_dyn_out, & ! dynamic viscosity of brine (kg/m/s)
tscale_pnd_drain_out, & ! mushy macroscopic drainage timescale (days)
Tocnfrz_out, & ! freezing temp of seawater (C)
Tffresh_out, & ! freezing temp of fresh ice (K)
Lsub_out, & ! latent heat, sublimation freshwater (J/kg)
Expand Down Expand Up @@ -1633,6 +1638,7 @@ subroutine icepack_query_parameters( &
if (present(albocn_out) ) albocn_out = albocn
if (present(gravit_out) ) gravit_out = gravit
if (present(viscosity_dyn_out) ) viscosity_dyn_out= viscosity_dyn
if (present(tscale_pnd_drain_out) ) tscale_pnd_drain_out = tscale_pnd_drain
if (present(Tocnfrz_out) ) Tocnfrz_out = Tocnfrz
if (present(rhofresh_out) ) rhofresh_out = rhofresh
if (present(zvir_out) ) zvir_out = zvir
Expand Down Expand Up @@ -1831,6 +1837,7 @@ subroutine icepack_write_parameters(iounit)
write(iounit,*) " albocn = ",albocn
write(iounit,*) " gravit = ",gravit
write(iounit,*) " viscosity_dyn = ",viscosity_dyn
write(iounit,*) " tscale_pnd_drain = ",tscale_pnd_drain
write(iounit,*) " Tocnfrz = ",Tocnfrz
write(iounit,*) " rhofresh = ",rhofresh
write(iounit,*) " zvir = ",zvir
Expand Down
21 changes: 12 additions & 9 deletions columnphysics/icepack_therm_mushy.F90
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ module icepack_therm_mushy
use icepack_parameters, only: p01, p05, p1, p2, p5, pi, bignum, puny
use icepack_parameters, only: viscosity_dyn, rhow, rhoi, rhos, cp_ocn, cp_ice, Lfresh, gravit
use icepack_parameters, only: hs_min, snwgrain
use icepack_parameters, only: a_rapid_mode, Rac_rapid_mode
use icepack_parameters, only: a_rapid_mode, Rac_rapid_mode, tscale_pnd_drain
use icepack_parameters, only: aspect_rapid_mode, dSdt_slow_mode, phi_c_slow_mode
use icepack_parameters, only: sw_redist, sw_frac, sw_dtemp
use icepack_mushy_physics, only: icepack_mushy_density_brine, enthalpy_brine, icepack_enthalpy_snow
Expand Down Expand Up @@ -3167,9 +3167,11 @@ subroutine flush_pond(w, hpond, apond, dt)
hpond ! melt pond thickness (m)

real(kind=dbl_kind), parameter :: &
lambda_pond = c1 / (10.0_dbl_kind * 24.0_dbl_kind * 3600.0_dbl_kind), &
hpond0 = 0.01_dbl_kind

real(kind=dbl_kind) :: &
lambda_pond ! 1 / macroscopic drainage time scale (s)

character(len=*),parameter :: subname='(flush_pond)'

if (tr_pond) then
Expand All @@ -3181,6 +3183,7 @@ subroutine flush_pond(w, hpond, apond, dt)
hpond = max(hpond, c0)

! exponential decay of pond
lambda_pond = c1 / (tscale_pnd_drain * 24.0_dbl_kind * 3600.0_dbl_kind)
hpond = hpond - lambda_pond * dt * (hpond + hpond0)

hpond = max(hpond, c0)
Expand Down Expand Up @@ -3214,11 +3217,11 @@ subroutine flood_ice(hsn, hin, &
hsn , & ! snow thickness (m)
hin , & ! ice thickness (m)
sss , & ! sea surface salinity (ppt)
qocn ! ocean brine enthalpy (J m-2)
qocn ! ocean brine enthalpy (J m-3)

real(kind=dbl_kind), dimension(:), intent(inout) :: &
zqsn , & ! snow layer enthalpy (J m-2)
zqin , & ! ice layer enthalpy (J m-2)
zqsn , & ! snow layer enthalpy (J m-3)
zqin , & ! ice layer enthalpy (J m-3)
zSin , & ! ice layer bulk salinity (ppt)
phi , & ! ice liquid fraction
smice , & ! ice mass tracer in snow (kg/m^3)
Expand Down Expand Up @@ -3246,8 +3249,8 @@ subroutine flood_ice(hsn, hin, &
phi_snowice , & ! liquid fraction of new snow ice
rho_snowice , & ! density of snowice (kg m-3)
zSin_snowice , & ! bulk salinity of new snowice (ppt)
zqin_snowice , & ! ice enthalpy of new snowice (J m-2)
zqsn_snowice , & ! snow enthalpy of snow thats becoming snowice (J m-2)
zqin_snowice , & ! ice enthalpy of new snowice (J m-3)
zqsn_snowice , & ! snow enthalpy of snow that is becoming snowice (J m-3)
freeboard_density , & ! negative of ice surface freeboard times the ocean density (kg m-2)
ice_mass , & ! mass of the ice (kg m-2)
! snow_mass , & ! mass of the ice (kg m-2)
Expand Down Expand Up @@ -3384,10 +3387,10 @@ subroutine enthalpy_snow_snowice(nslyr, dh, hsn, zqsn, zqsn_snowice)
hsn ! initial snow thickness

real(kind=dbl_kind), dimension(:), intent(in) :: &
zqsn ! snow layer enthalpy (J m-2)
zqsn ! snow layer enthalpy (J m-3)

real(kind=dbl_kind), intent(out) :: &
zqsn_snowice ! enthalpy of snow becoming snowice (J m-2)
zqsn_snowice ! enthalpy of snow becoming snowice (J m-3)

real(kind=dbl_kind) :: &
rnlyr ! real value of number of snow layers turning to snowice
Expand Down
3 changes: 2 additions & 1 deletion doc/source/icepack_index.rst
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -121,7 +121,7 @@ either Celsius or Kelvin units). Deprecated parameters are listed at the end.
"divu_adv", "divergence associated with advection", "1/s"
"dms", "dimethyl sulfide concentration", "mmol/m\ :math:`^3`"
"dmsp", "dimethyl sulfoniopropionate concentration", "mmol/m\ :math:`^3`"
"dpscale", ":math:`\bullet` time scale for flushing in permeable ice", ":math:`1\times 10^{-3}`"
"dpscale", ":math:`\bullet` scaling factor for flushing in permeable ice (ktherm=1)", ":math:`1\times 10^{-3}`"
"dragio", "drag coefficient for water on ice", "0.00536"
"dSdt_slow_mode", ":math:`\bullet` drainage strength parameter", ""
"dsnow", "change in snow thickness", "m"
Expand Down Expand Up @@ -463,6 +463,7 @@ either Celsius or Kelvin units). Deprecated parameters are listed at the end.
"time", "total elapsed time", "s"
"time_forc", "time of last forcing update", "s"
"Timelt", "melting temperature of ice top surface", "0. C"
"tscale_pnd_drain", "mushy pond macroscopic drainage timescale", "10 days"
"TLAT", "latitude of cell center", "radians"
"Tliquidus_max", "maximum liquidus temperature of mush", "0. C"
"TLON", "longitude of cell center", "radians"
Expand Down
3 changes: 2 additions & 1 deletion doc/source/user_guide/ug_case_settings.rst
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -219,6 +219,7 @@ thermo_nml
"``phi_i_mushy``", ":math:`0<\phi_i < 1`", "solid fraction at lower boundary", "0.85"
"``Rac_rapid_mode``", "real", "critical Rayleigh number", "10.0"
"``Tliquidus_max``", "real", "maximum liquidus temperature of mush (C)", "0.0"
"``tscale_pnd_drain``", "real", "mushy pond macroscopic drainage timescale in days", "10."
"", "", "", ""


Expand Down Expand Up @@ -279,7 +280,7 @@ ponds_nml
:widths: 15, 15, 30, 15

"", "", "", ""
"``dpscale``", "real", "time scale for flushing in permeable ice", "1.0"
"``dpscale``", "real", "scaling factor for flushing in permeable ice (ktherm=1)", "1.e-3"
"``frzpnd``", "``cesm``", "CESM pond refreezing forumulation", "``cesm``"
"", "``hlid``", "Stefan refreezing with pond ice thickness", ""
"``hp1``", "real", "critical ice lid thickness for topo ponds in m", "0.01"
Expand Down
Loading