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Overview

Ice sheet coupling with the rest of the model depends on which ice sheet is being modeled, Antarctica or Greenland.

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ocean coupling: (glc_c2_ocn): Sg_icemask, Sg_blit, Sg_blis, Sg_lithop, Sg_icemask_grounded

There is no ocn_c2_glc, ice_c2_glcshelf., ice_c2_glc

Attribute strings

Fields passed to/from the coupler related to the ice sheet.

Several fields are calculated per elevation class and so have two-digit numbers appended to them.

land to glc adds the following coupling fields

• l2x states: Sl_tsrf00 through Sl_tsrf10  and Sl_topo00 through Sl_topo10

• l2x states to glc: Sl_tsrf00 to Sl_tsrf10 AND Sl_topo00 to Sl_topo10

  • Sl_tsrf: Surface temperature of glacier (one for each elevation class)

  • Sl_topo: surface height of glacier (one for each elevation class)

• l2x fluxes: Flgl_qice00 through Flgl_qice10

• l2x_fluxes_to_glc:  Flgl_qice00 to Flgl_qice10

  • Flgl_qice: New glacier ice flux

glc to lnd adds the following coupling fields:

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Assuming glc_present and glc_prognostic are TRUE so not including.

init

prep_lnd_init (glc_c2_lnd)

if(glc_c2_lnd) init mapper_Sg2l, mapper_Fg2l; derive field lists glc2lnd_non_ec_fields and glc2lnd_ec_extra_fields

prep_ocn_init (glc_c2_ocn, glcshelf_c2_ocn)

if (glc_c2_ocn) init mapper_Rg2o_liq and mapper_Rg2o_ice

if(glcshelf_c2_ocn) init mapper_Sg2o and mapper_Fg2o

prep_ice_init (glc_c2_ice, glcshelf_c2_ice)

if (glc_c2_ice) init mapper_Rg2i

if(glcshelf_c2_ice) init mapper_Sg2i,mapper_Fg2i

prep_glc_init( lnd_c2_glc, ocn_c2_glctf, ocn_c2_glcshelf)

if ( lnd_c2_glc .or. do_hist_l2x1yrg) initialize l2gacc_lx with seq_flds_l2x_fields_to_glc

if ( lnd_c2_glc) initialize l2x_gx with seq_flds_x2g_fields

if (lnd_c2_glc) init mapper_Sl2g, mapper_Fl2g, mapper_Fg2l; form g2x_lx_fields

if (ocn_c2_glctf OR ocn_c2_glcshelf) init o2x_gx with seq_flds_o2x_fields; init x2gacc_gx

also init mapper_So2g, mapper_Fo2g and arrays for compute_melt_fluxes

if (ocn_c2_glctf) init mapper_So2g_tf

if(ocn_c2_glcshelf) init mapper_So2g_shelf

if (glc_c2_ocn) do mapping Rg2o_liq, Rg2o_ice; g2x_gx to g2x_ox; seq_flds_g2o_liq/ice_fluxes,

if (glcshelf_c2_ocn) do mapping Sg2o, Fg2o; g2x_gx to g2x_ox MIGHT OVERWRITE ABOVE

if(glc_c2_ice) do mapping Rg2i; g2x_gx to g2x_ix ‘Fixx_rofi’ only

if(glcshelf_c2_ice) do mapping_Sg2i; g2x_gx, g2x_ix, Sg_icemask_coupled_fluxes

if (glc_c2_lnd) prep_lnd_calc_g2x_lx do mapping with Fg2l, from g2x_gx to g2x_lx, only glc2lnd_non_ec_fields (Sg_icemask, Sg_icemask_coupled_fluxes)

loop over elevation classes: call map_glc2lnd_ec do special mapping from glc to lnd elevation classes using mapper_Fg2l, glc2lnd_ec_extra_fields

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call cime_run_glc_setup_send

if (lnd_c2_glc OR ocn_c2_glctf OR ocn_c2_glcshelf)

if (glcrun_avg_alarm) accumulate for lnd and ocn

if (lnd_c2_glc) call prep_glc_calc_l2x_gx

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call prep_glc_map_one_state_field_lnd2glc: special bilinear mapping one state at a time: also call map_lnd2glc

if (ocn_c2_glctf) call prep_glc_mrg_ocn

else prep_glc_zero_flds

...

call cime_run_ocnglc_coupling()

if (ocn_c2_glctf OR (glcshelf_to_ocn AND ocn_to_glcshelf))

call prep_glc_calc_o2x_gx:

if (ocn_c2_gtctf) call mapper_So2g_tf; o2x_ox to o2x_gx seq_flds_x2g_tf_states_from_ocn

if (ocn_c2_glcshelf) call mapper_So2g_shelf; o2x_ox to o2x_gx seq_flds_x2g_shelf_states_from_ocn

if (ocn_c2_glcshelf AND glcshelf_c2_ocn)

call prep_glc_calculate_subshelf_boundary_fluxes

...

call prep_glc_accum_ocn (accumulate x2g_g fields)

if ( glcshelf_c2_ice) call mapper map_Sg2i; g2x_gx, g2x_ix; Sg_icemask_coupled_fluxes

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