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icethd_zdf_bl99.f90
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MODULE icethd_zdf_BL99
USE dom_oce
USE phycst
USE ice
USE ice1D
USE icevar
USE in_out_manager
USE lib_mpp
USE lib_fortran
IMPLICIT NONE
PRIVATE
PUBLIC :: ice_thd_zdf_BL99
CONTAINS
SUBROUTINE ice_thd_zdf_BL99(k_jules)
INTEGER, INTENT(IN) :: k_jules
INTEGER :: ji, jk
INTEGER :: jm
INTEGER :: jm_mint, jm_maxt
INTEGER :: iconv
INTEGER :: iconv_max = 50
INTEGER, DIMENSION(jpij) :: jm_min
INTEGER, DIMENSION(jpij) :: jm_max
REAL(KIND = wp) :: zg1s = 2._wp
REAL(KIND = wp) :: zg1 = 2._wp
REAL(KIND = wp) :: zgamma = 18009._wp
REAL(KIND = wp) :: zbeta = 0.117_wp
REAL(KIND = wp) :: zraext_s = 10._wp
REAL(KIND = wp) :: zkimin = 0.10_wp
REAL(KIND = wp) :: ztsu_err = 1.E-5_wp
REAL(KIND = wp) :: zdti_bnd = 1.E-4_wp
REAL(KIND = wp) :: zhs_min = 0.01_wp
REAL(KIND = wp) :: ztmelts
REAL(KIND = wp) :: zdti_max
REAL(KIND = wp) :: zcpi
REAL(KIND = wp) :: zhfx_err, zdq
REAL(KIND = wp) :: zfac
REAL(KIND = wp), DIMENSION(jpij) :: isnow
REAL(KIND = wp), DIMENSION(jpij) :: ztsub
REAL(KIND = wp), DIMENSION(jpij) :: zh_i, z1_h_i
REAL(KIND = wp), DIMENSION(jpij) :: zh_s, z1_h_s
REAL(KIND = wp), DIMENSION(jpij) :: zqns_ice_b
REAL(KIND = wp), DIMENSION(jpij) :: zfnet
REAL(KIND = wp), DIMENSION(jpij) :: zdqns_ice_b
REAL(KIND = wp), DIMENSION(jpij) :: ztsuold
REAL(KIND = wp), DIMENSION(jpij, nlay_i) :: ztiold
REAL(KIND = wp), DIMENSION(jpij, nlay_s) :: ztsold
REAL(KIND = wp), DIMENSION(jpij, nlay_i) :: ztib
REAL(KIND = wp), DIMENSION(jpij, nlay_s) :: ztsb
REAL(KIND = wp), DIMENSION(jpij, 0 : nlay_i) :: ztcond_i
REAL(KIND = wp), DIMENSION(jpij, 0 : nlay_i) :: zradtr_i
REAL(KIND = wp), DIMENSION(jpij, 0 : nlay_i) :: zradab_i
REAL(KIND = wp), DIMENSION(jpij, 0 : nlay_i) :: zkappa_i
REAL(KIND = wp), DIMENSION(jpij, 0 : nlay_i) :: zeta_i
REAL(KIND = wp), DIMENSION(jpij, 0 : nlay_s) :: zradtr_s
REAL(KIND = wp), DIMENSION(jpij, 0 : nlay_s) :: zradab_s
REAL(KIND = wp), DIMENSION(jpij, 0 : nlay_s) :: zkappa_s
REAL(KIND = wp), DIMENSION(jpij, 0 : nlay_s) :: zeta_s
REAL(KIND = wp), DIMENSION(jpij, nlay_i + 3) :: zindterm
REAL(KIND = wp), DIMENSION(jpij, nlay_i + 3) :: zindtbis
REAL(KIND = wp), DIMENSION(jpij, nlay_i + 3) :: zdiagbis
REAL(KIND = wp), DIMENSION(jpij, nlay_i + 3, 3) :: ztrid
REAL(KIND = wp), DIMENSION(jpij) :: zq_ini
REAL(KIND = wp), DIMENSION(jpij) :: zghe
REAL(KIND = wp) :: zepsilon
REAL(KIND = wp) :: zhe
REAL(KIND = wp) :: zcnd_i
DO ji = 1, npti
zq_ini(ji) = (SUM(e_i_1d(ji, 1 : nlay_i)) * h_i_1d(ji) * r1_nlay_i + SUM(e_s_1d(ji, 1 : nlay_s)) * h_s_1d(ji) * r1_nlay_s)
END DO
!$ACC KERNELS
DO ji = 1, npti
isnow(ji) = 1._wp - MAX(0._wp, SIGN(1._wp, - h_s_1d(ji)))
zh_i(ji) = h_i_1d(ji) * r1_nlay_i
zh_s(ji) = h_s_1d(ji) * r1_nlay_s
END DO
!$ACC END KERNELS
WHERE (zh_i(1 : npti) >= epsi10)
z1_h_i(1 : npti) = 1._wp / zh_i(1 : npti)
ELSEWHERE
z1_h_i(1 : npti) = 0._wp
END WHERE
WHERE (zh_s(1 : npti) > 0._wp) zh_s(1 : npti) = MAX(zhs_min * r1_nlay_s, zh_s(1 : npti))
WHERE (zh_s(1 : npti) > 0._wp)
z1_h_s(1 : npti) = 1._wp / zh_s(1 : npti)
ELSEWHERE
z1_h_s(1 : npti) = 0._wp
END WHERE
IF (k_jules == np_jules_OFF .OR. k_jules == np_jules_EMULE) THEN
ztsub(1 : npti) = t_su_1d(1 : npti)
ztsuold(1 : npti) = t_su_1d(1 : npti)
t_su_1d(1 : npti) = MIN(t_su_1d(1 : npti), rt0 - ztsu_err)
zdqns_ice_b(1 : npti) = dqns_ice_1d(1 : npti)
zqns_ice_b(1 : npti) = qns_ice_1d(1 : npti)
END IF
!$ACC KERNELS
ztsold(1 : npti, :) = t_s_1d(1 : npti, :)
ztiold(1 : npti, :) = t_i_1d(1 : npti, :)
zradtr_s(1 : npti, 0) = qtr_ice_top_1d(1 : npti)
DO jk = 1, nlay_s
DO ji = 1, npti
zradtr_s(ji, jk) = zradtr_s(ji, 0) * EXP(- zraext_s * h_s_1d(ji) * r1_nlay_s * REAL(jk))
zradab_s(ji, jk) = zradtr_s(ji, jk - 1) - zradtr_s(ji, jk)
END DO
END DO
zradtr_i(1 : npti, 0) = zradtr_s(1 : npti, nlay_s) * isnow(1 : npti) + qtr_ice_top_1d(1 : npti) * (1._wp - isnow(1 : npti))
DO jk = 1, nlay_i
DO ji = 1, npti
zradtr_i(ji, jk) = zradtr_i(ji, 0) * EXP(- rn_kappa_i * zh_i(ji) * REAL(jk))
zradab_i(ji, jk) = zradtr_i(ji, jk - 1) - zradtr_i(ji, jk)
END DO
END DO
!$ACC END KERNELS
qtr_ice_bot_1d(1 : npti) = zradtr_i(1 : npti, nlay_i)
iconv = 0
zdti_max = 1000._wp
DO WHILE (zdti_max > zdti_bnd .AND. iconv < iconv_max)
iconv = iconv + 1
ztib(1 : npti, :) = t_i_1d(1 : npti, :)
ztsb(1 : npti, :) = t_s_1d(1 : npti, :)
IF (ln_cndi_U64) THEN
DO ji = 1, npti
ztcond_i(ji, 0) = rcnd_i + zbeta * sz_i_1d(ji, 1) / MIN(- epsi10, t_i_1d(ji, 1) - rt0)
ztcond_i(ji, nlay_i) = rcnd_i + zbeta * sz_i_1d(ji, nlay_i) / MIN(- epsi10, t_bo_1d(ji) - rt0)
END DO
DO jk = 1, nlay_i - 1
DO ji = 1, npti
ztcond_i(ji, jk) = rcnd_i + zbeta * 0.5_wp * (sz_i_1d(ji, jk) + sz_i_1d(ji, jk + 1)) / MIN(- epsi10, 0.5_wp * (t_i_1d(ji, jk) + t_i_1d(ji, jk + 1)) - rt0)
END DO
END DO
ELSE IF (ln_cndi_P07) THEN
DO ji = 1, npti
ztcond_i(ji, 0) = rcnd_i + 0.09_wp * sz_i_1d(ji, 1) / MIN(- epsi10, t_i_1d(ji, 1) - rt0) - 0.011_wp * (t_i_1d(ji, 1) - rt0)
ztcond_i(ji, nlay_i) = rcnd_i + 0.09_wp * sz_i_1d(ji, nlay_i) / MIN(- epsi10, t_bo_1d(ji) - rt0) - 0.011_wp * (t_bo_1d(ji) - rt0)
END DO
DO jk = 1, nlay_i - 1
DO ji = 1, npti
ztcond_i(ji, jk) = rcnd_i + 0.09_wp * 0.5_wp * (sz_i_1d(ji, jk) + sz_i_1d(ji, jk + 1)) / MIN(- epsi10, 0.5_wp * (t_i_1d(ji, jk) + t_i_1d(ji, jk + 1)) - rt0) - 0.011_wp * (0.5_wp * (t_i_1d(ji, jk) + t_i_1d(ji, jk + 1)) - rt0)
END DO
END DO
END IF
ztcond_i(1 : npti, :) = MAX(zkimin, ztcond_i(1 : npti, :))
zghe(1 : npti) = 1._wp
SELECT CASE (nn_virtual_itd)
CASE (1, 2)
zepsilon = 0.1_wp
DO ji = 1, npti
zcnd_i = SUM(ztcond_i(ji, :)) / REAL(nlay_i + 1, wp)
zhe = (rn_cnd_s * h_i_1d(ji) + zcnd_i * h_s_1d(ji)) / (rn_cnd_s + zcnd_i)
IF (zhe >= zepsilon * 0.5_wp * EXP(1._wp)) zghe(ji) = MIN(2._wp, 0.5_wp * (1._wp + LOG(2._wp * zhe / zepsilon)))
END DO
END SELECT
DO jk = 0, nlay_s - 1
DO ji = 1, npti
zkappa_s(ji, jk) = zghe(ji) * rn_cnd_s * z1_h_s(ji)
END DO
END DO
DO ji = 1, npti
zfac = 0.5_wp * (ztcond_i(ji, 0) * zh_s(ji) + rn_cnd_s * zh_i(ji))
IF (zfac > epsi10) THEN
zkappa_s(ji, nlay_s) = zghe(ji) * rn_cnd_s * ztcond_i(ji, 0) / zfac
ELSE
zkappa_s(ji, nlay_s) = 0._wp
END IF
END DO
DO jk = 0, nlay_i
DO ji = 1, npti
zkappa_i(ji, jk) = zghe(ji) * ztcond_i(ji, jk) * z1_h_i(ji)
END DO
END DO
DO ji = 1, npti
zkappa_i(ji, 0) = zkappa_s(ji, nlay_s) * isnow(ji) + zkappa_i(ji, 0) * (1._wp - isnow(ji))
END DO
DO jk = 1, nlay_i
DO ji = 1, npti
zcpi = rcpi + zgamma * sz_i_1d(ji, jk) / MAX((t_i_1d(ji, jk) - rt0) * (ztiold(ji, jk) - rt0), epsi10)
zeta_i(ji, jk) = rdt_ice * r1_rhoi * z1_h_i(ji) / MAX(epsi10, zcpi)
END DO
END DO
DO jk = 1, nlay_s
DO ji = 1, npti
zeta_s(ji, jk) = rdt_ice * r1_rhos * r1_rcpi * z1_h_s(ji)
END DO
END DO
IF (k_jules == np_jules_OFF .OR. k_jules == np_jules_EMULE) THEN
DO ji = 1, npti
qns_ice_1d(ji) = qns_ice_1d(ji) + dqns_ice_1d(ji) * (t_su_1d(ji) - ztsub(ji))
END DO
DO ji = 1, npti
zfnet(ji) = qsr_ice_1d(ji) - qtr_ice_top_1d(ji) + qns_ice_1d(ji)
END DO
ztrid(1 : npti, :, :) = 0._wp
zindterm(1 : npti, :) = 0._wp
zindtbis(1 : npti, :) = 0._wp
zdiagbis(1 : npti, :) = 0._wp
DO jm = nlay_s + 2, nlay_s + nlay_i
DO ji = 1, npti
jk = jm - nlay_s - 1
ztrid(ji, jm, 1) = - zeta_i(ji, jk) * zkappa_i(ji, jk - 1)
ztrid(ji, jm, 2) = 1._wp + zeta_i(ji, jk) * (zkappa_i(ji, jk - 1) + zkappa_i(ji, jk))
ztrid(ji, jm, 3) = - zeta_i(ji, jk) * zkappa_i(ji, jk)
zindterm(ji, jm) = ztiold(ji, jk) + zeta_i(ji, jk) * zradab_i(ji, jk)
END DO
END DO
jm = nlay_s + nlay_i + 1
DO ji = 1, npti
ztrid(ji, jm, 1) = - zeta_i(ji, nlay_i) * zkappa_i(ji, nlay_i - 1)
ztrid(ji, jm, 2) = 1._wp + zeta_i(ji, nlay_i) * (zkappa_i(ji, nlay_i - 1) + zkappa_i(ji, nlay_i) * zg1)
ztrid(ji, jm, 3) = 0._wp
zindterm(ji, jm) = ztiold(ji, nlay_i) + zeta_i(ji, nlay_i) * (zradab_i(ji, nlay_i) + zkappa_i(ji, nlay_i) * zg1 * t_bo_1d(ji))
END DO
DO ji = 1, npti
IF (h_s_1d(ji) > 0._wp) THEN
DO jm = 3, nlay_s + 1
jk = jm - 1
ztrid(ji, jm, 1) = - zeta_s(ji, jk) * zkappa_s(ji, jk - 1)
ztrid(ji, jm, 2) = 1._wp + zeta_s(ji, jk) * (zkappa_s(ji, jk - 1) + zkappa_s(ji, jk))
ztrid(ji, jm, 3) = - zeta_s(ji, jk) * zkappa_s(ji, jk)
zindterm(ji, jm) = ztsold(ji, jk) + zeta_s(ji, jk) * zradab_s(ji, jk)
END DO
IF (nlay_i == 1) THEN
ztrid(ji, nlay_s + 2, 3) = 0._wp
zindterm(ji, nlay_s + 2) = zindterm(ji, nlay_s + 2) + zeta_i(ji, 1) * zkappa_i(ji, 1) * t_bo_1d(ji)
END IF
IF (t_su_1d(ji) < rt0) THEN
jm_min(ji) = 1
jm_max(ji) = nlay_i + nlay_s + 1
ztrid(ji, 1, 1) = 0._wp
ztrid(ji, 1, 2) = zdqns_ice_b(ji) - zg1s * zkappa_s(ji, 0)
ztrid(ji, 1, 3) = zg1s * zkappa_s(ji, 0)
zindterm(ji, 1) = zdqns_ice_b(ji) * t_su_1d(ji) - zfnet(ji)
ztrid(ji, 2, 1) = - zeta_s(ji, 1) * zkappa_s(ji, 0) * zg1s
ztrid(ji, 2, 2) = 1._wp + zeta_s(ji, 1) * (zkappa_s(ji, 1) + zkappa_s(ji, 0) * zg1s)
ztrid(ji, 2, 3) = - zeta_s(ji, 1) * zkappa_s(ji, 1)
zindterm(ji, 2) = ztsold(ji, 1) + zeta_s(ji, 1) * zradab_s(ji, 1)
ELSE
jm_min(ji) = 2
jm_max(ji) = nlay_i + nlay_s + 1
ztrid(ji, 2, 1) = 0._wp
ztrid(ji, 2, 2) = 1._wp + zeta_s(ji, 1) * (zkappa_s(ji, 1) + zkappa_s(ji, 0) * zg1s)
ztrid(ji, 2, 3) = - zeta_s(ji, 1) * zkappa_s(ji, 1)
zindterm(ji, 2) = ztsold(ji, 1) + zeta_s(ji, 1) * (zradab_s(ji, 1) + zkappa_s(ji, 0) * zg1s * t_su_1d(ji))
END IF
ELSE
IF (t_su_1d(ji) < rt0) THEN
jm_min(ji) = nlay_s + 1
jm_max(ji) = nlay_i + nlay_s + 1
ztrid(ji, jm_min(ji), 1) = 0._wp
ztrid(ji, jm_min(ji), 2) = zdqns_ice_b(ji) - zkappa_i(ji, 0) * zg1
ztrid(ji, jm_min(ji), 3) = zkappa_i(ji, 0) * zg1
zindterm(ji, jm_min(ji)) = zdqns_ice_b(ji) * t_su_1d(ji) - zfnet(ji)
ztrid(ji, jm_min(ji) + 1, 1) = - zeta_i(ji, 1) * zkappa_i(ji, 0) * zg1
ztrid(ji, jm_min(ji) + 1, 2) = 1._wp + zeta_i(ji, 1) * (zkappa_i(ji, 1) + zkappa_i(ji, 0) * zg1)
ztrid(ji, jm_min(ji) + 1, 3) = - zeta_i(ji, 1) * zkappa_i(ji, 1)
zindterm(ji, jm_min(ji) + 1) = ztiold(ji, 1) + zeta_i(ji, 1) * zradab_i(ji, 1)
IF (nlay_i == 1) THEN
ztrid(ji, jm_min(ji), 1) = 0._wp
ztrid(ji, jm_min(ji), 2) = zdqns_ice_b(ji) - zkappa_i(ji, 0) * 2._wp
ztrid(ji, jm_min(ji), 3) = zkappa_i(ji, 0) * 2._wp
ztrid(ji, jm_min(ji) + 1, 1) = - zeta_i(ji, 1) * zkappa_i(ji, 0) * 2._wp
ztrid(ji, jm_min(ji) + 1, 2) = 1._wp + zeta_i(ji, 1) * (zkappa_i(ji, 0) * 2._wp + zkappa_i(ji, 1))
ztrid(ji, jm_min(ji) + 1, 3) = 0._wp
zindterm(ji, jm_min(ji) + 1) = ztiold(ji, 1) + zeta_i(ji, 1) * (zradab_i(ji, 1) + zkappa_i(ji, 1) * t_bo_1d(ji))
END IF
ELSE
jm_min(ji) = nlay_s + 2
jm_max(ji) = nlay_i + nlay_s + 1
ztrid(ji, jm_min(ji), 1) = 0._wp
ztrid(ji, jm_min(ji), 2) = 1._wp + zeta_i(ji, 1) * (zkappa_i(ji, 1) + zkappa_i(ji, 0) * zg1)
ztrid(ji, jm_min(ji), 3) = - zeta_i(ji, 1) * zkappa_i(ji, 1)
zindterm(ji, jm_min(ji)) = ztiold(ji, 1) + zeta_i(ji, 1) * (zradab_i(ji, 1) + zkappa_i(ji, 0) * zg1 * t_su_1d(ji))
IF (nlay_i == 1) THEN
ztrid(ji, jm_min(ji), 1) = 0._wp
ztrid(ji, jm_min(ji), 2) = 1._wp + zeta_i(ji, 1) * (zkappa_i(ji, 0) * 2._wp + zkappa_i(ji, 1))
ztrid(ji, jm_min(ji), 3) = 0._wp
zindterm(ji, jm_min(ji)) = ztiold(ji, 1) + zeta_i(ji, 1) * (zradab_i(ji, 1) + zkappa_i(ji, 1) * t_bo_1d(ji)) + t_su_1d(ji) * zeta_i(ji, 1) * zkappa_i(ji, 0) * 2._wp
END IF
END IF
END IF
zindtbis(ji, jm_min(ji)) = zindterm(ji, jm_min(ji))
zdiagbis(ji, jm_min(ji)) = ztrid(ji, jm_min(ji), 2)
END DO
jm_maxt = 0
jm_mint = nlay_i + 5
DO ji = 1, npti
jm_mint = MIN(jm_min(ji), jm_mint)
jm_maxt = MAX(jm_max(ji), jm_maxt)
END DO
DO jk = jm_mint + 1, jm_maxt
DO ji = 1, npti
jm = MIN(MAX(jm_min(ji) + 1, jk), jm_max(ji))
zdiagbis(ji, jm) = ztrid(ji, jm, 2) - ztrid(ji, jm, 1) * ztrid(ji, jm - 1, 3) / zdiagbis(ji, jm - 1)
zindtbis(ji, jm) = zindterm(ji, jm) - ztrid(ji, jm, 1) * zindtbis(ji, jm - 1) / zdiagbis(ji, jm - 1)
END DO
END DO
DO ji = 1, npti
t_i_1d(ji, nlay_i) = zindtbis(ji, jm_max(ji)) / zdiagbis(ji, jm_max(ji))
END DO
DO jm = nlay_i + nlay_s, nlay_s + 2, - 1
DO ji = 1, npti
jk = jm - nlay_s - 1
t_i_1d(ji, jk) = (zindtbis(ji, jm) - ztrid(ji, jm, 3) * t_i_1d(ji, jk + 1)) / zdiagbis(ji, jm)
END DO
END DO
DO ji = 1, npti
IF (h_s_1d(ji) > 0._wp) THEN
t_s_1d(ji, nlay_s) = (zindtbis(ji, nlay_s + 1) - ztrid(ji, nlay_s + 1, 3) * t_i_1d(ji, 1)) / zdiagbis(ji, nlay_s + 1)
END IF
ztsub(ji) = t_su_1d(ji)
IF (t_su_1d(ji) < rt0) THEN
t_su_1d(ji) = (zindtbis(ji, jm_min(ji)) - ztrid(ji, jm_min(ji), 3) * (isnow(ji) * t_s_1d(ji, 1) + (1._wp - isnow(ji)) * t_i_1d(ji, 1))) / zdiagbis(ji, jm_min(ji))
END IF
END DO
zdti_max = 0._wp
DO ji = 1, npti
t_su_1d(ji) = MAX(MIN(t_su_1d(ji), rt0), rt0 - 100._wp)
zdti_max = MAX(zdti_max, ABS(t_su_1d(ji) - ztsub(ji)))
END DO
DO jk = 1, nlay_s
DO ji = 1, npti
t_s_1d(ji, jk) = MAX(MIN(t_s_1d(ji, jk), rt0), rt0 - 100._wp)
zdti_max = MAX(zdti_max, ABS(t_s_1d(ji, jk) - ztsb(ji, jk)))
END DO
END DO
DO jk = 1, nlay_i
DO ji = 1, npti
ztmelts = - rTmlt * sz_i_1d(ji, jk) + rt0
t_i_1d(ji, jk) = MAX(MIN(t_i_1d(ji, jk), ztmelts), rt0 - 100._wp)
zdti_max = MAX(zdti_max, ABS(t_i_1d(ji, jk) - ztib(ji, jk)))
END DO
END DO
IF (lk_mpp) CALL mpp_max(zdti_max, kcom = ncomm_ice)
ELSE IF (k_jules == np_jules_ACTIVE) THEN
ztrid(1 : npti, :, :) = 0._wp
zindterm(1 : npti, :) = 0._wp
zindtbis(1 : npti, :) = 0._wp
zdiagbis(1 : npti, :) = 0._wp
DO jm = nlay_s + 2, nlay_s + nlay_i
DO ji = 1, npti
jk = jm - nlay_s - 1
ztrid(ji, jm, 1) = - zeta_i(ji, jk) * zkappa_i(ji, jk - 1)
ztrid(ji, jm, 2) = 1._wp + zeta_i(ji, jk) * (zkappa_i(ji, jk - 1) + zkappa_i(ji, jk))
ztrid(ji, jm, 3) = - zeta_i(ji, jk) * zkappa_i(ji, jk)
zindterm(ji, jm) = ztiold(ji, jk) + zeta_i(ji, jk) * zradab_i(ji, jk)
END DO
END DO
jm = nlay_s + nlay_i + 1
DO ji = 1, npti
ztrid(ji, jm, 1) = - zeta_i(ji, nlay_i) * zkappa_i(ji, nlay_i - 1)
ztrid(ji, jm, 2) = 1._wp + zeta_i(ji, nlay_i) * (zkappa_i(ji, nlay_i - 1) + zkappa_i(ji, nlay_i) * zg1)
ztrid(ji, jm, 3) = 0._wp
zindterm(ji, jm) = ztiold(ji, nlay_i) + zeta_i(ji, nlay_i) * (zradab_i(ji, nlay_i) + zkappa_i(ji, nlay_i) * zg1 * t_bo_1d(ji))
END DO
DO ji = 1, npti
IF (h_s_1d(ji) > 0._wp) THEN
DO jm = 3, nlay_s + 1
jk = jm - 1
ztrid(ji, jm, 1) = - zeta_s(ji, jk) * zkappa_s(ji, jk - 1)
ztrid(ji, jm, 2) = 1._wp + zeta_s(ji, jk) * (zkappa_s(ji, jk - 1) + zkappa_s(ji, jk))
ztrid(ji, jm, 3) = - zeta_s(ji, jk) * zkappa_s(ji, jk)
zindterm(ji, jm) = ztsold(ji, jk) + zeta_s(ji, jk) * zradab_s(ji, jk)
END DO
IF (nlay_i == 1) THEN
ztrid(ji, nlay_s + 2, 3) = 0._wp
zindterm(ji, nlay_s + 2) = zindterm(ji, nlay_s + 2) + zeta_i(ji, 1) * zkappa_i(ji, 1) * t_bo_1d(ji)
END IF
jm_min(ji) = 2
jm_max(ji) = nlay_i + nlay_s + 1
ztrid(ji, 2, 1) = 0._wp
ztrid(ji, 2, 2) = 1._wp + zeta_s(ji, 1) * zkappa_s(ji, 1)
ztrid(ji, 2, 3) = - zeta_s(ji, 1) * zkappa_s(ji, 1)
zindterm(ji, 2) = ztsold(ji, 1) + zeta_s(ji, 1) * (zradab_s(ji, 1) + qcn_ice_1d(ji))
ELSE
jm_min(ji) = nlay_s + 2
jm_max(ji) = nlay_i + nlay_s + 1
ztrid(ji, jm_min(ji), 1) = 0._wp
ztrid(ji, jm_min(ji), 2) = 1._wp + zeta_i(ji, 1) * zkappa_i(ji, 1)
ztrid(ji, jm_min(ji), 3) = - zeta_i(ji, 1) * zkappa_i(ji, 1)
zindterm(ji, jm_min(ji)) = ztiold(ji, 1) + zeta_i(ji, 1) * (zradab_i(ji, 1) + qcn_ice_1d(ji))
IF (nlay_i == 1) THEN
ztrid(ji, jm_min(ji), 1) = 0._wp
ztrid(ji, jm_min(ji), 2) = 1._wp + zeta_i(ji, 1) * zkappa_i(ji, 1)
ztrid(ji, jm_min(ji), 3) = 0._wp
zindterm(ji, jm_min(ji)) = ztiold(ji, 1) + zeta_i(ji, 1) * (zradab_i(ji, 1) + zkappa_i(ji, 1) * t_bo_1d(ji) + qcn_ice_1d(ji))
END IF
END IF
zindtbis(ji, jm_min(ji)) = zindterm(ji, jm_min(ji))
zdiagbis(ji, jm_min(ji)) = ztrid(ji, jm_min(ji), 2)
END DO
jm_maxt = 0
jm_mint = nlay_i + 5
DO ji = 1, npti
jm_mint = MIN(jm_min(ji), jm_mint)
jm_maxt = MAX(jm_max(ji), jm_maxt)
END DO
DO jk = jm_mint + 1, jm_maxt
DO ji = 1, npti
jm = MIN(MAX(jm_min(ji) + 1, jk), jm_max(ji))
zdiagbis(ji, jm) = ztrid(ji, jm, 2) - ztrid(ji, jm, 1) * ztrid(ji, jm - 1, 3) / zdiagbis(ji, jm - 1)
zindtbis(ji, jm) = zindterm(ji, jm) - ztrid(ji, jm, 1) * zindtbis(ji, jm - 1) / zdiagbis(ji, jm - 1)
END DO
END DO
DO ji = 1, npti
t_i_1d(ji, nlay_i) = zindtbis(ji, jm_max(ji)) / zdiagbis(ji, jm_max(ji))
END DO
DO jm = nlay_i + nlay_s, nlay_s + 2, - 1
DO ji = 1, npti
jk = jm - nlay_s - 1
t_i_1d(ji, jk) = (zindtbis(ji, jm) - ztrid(ji, jm, 3) * t_i_1d(ji, jk + 1)) / zdiagbis(ji, jm)
END DO
END DO
DO ji = 1, npti
IF (h_s_1d(ji) > 0._wp) THEN
t_s_1d(ji, nlay_s) = (zindtbis(ji, nlay_s + 1) - ztrid(ji, nlay_s + 1, 3) * t_i_1d(ji, 1)) / zdiagbis(ji, nlay_s + 1)
END IF
END DO
zdti_max = 0._wp
DO jk = 1, nlay_s
DO ji = 1, npti
t_s_1d(ji, jk) = MAX(MIN(t_s_1d(ji, jk), rt0), rt0 - 100._wp)
zdti_max = MAX(zdti_max, ABS(t_s_1d(ji, jk) - ztsb(ji, jk)))
END DO
END DO
DO jk = 1, nlay_i
DO ji = 1, npti
ztmelts = - rTmlt * sz_i_1d(ji, jk) + rt0
t_i_1d(ji, jk) = MAX(MIN(t_i_1d(ji, jk), ztmelts), rt0 - 100._wp)
zdti_max = MAX(zdti_max, ABS(t_i_1d(ji, jk) - ztib(ji, jk)))
END DO
END DO
IF (lk_mpp) CALL mpp_max(zdti_max, kcom = ncomm_ice)
END IF
END DO
IF (ln_icectl .AND. lwp) THEN
WRITE(numout, FMT = *) ' zdti_max : ', zdti_max
WRITE(numout, FMT = *) ' iconv : ', iconv
END IF
!$ACC KERNELS
DO ji = 1, npti
qcn_ice_top_1d(ji) = - isnow(ji) * zkappa_s(ji, 0) * zg1s * (t_s_1d(ji, 1) - t_su_1d(ji)) - (1._wp - isnow(ji)) * zkappa_i(ji, 0) * zg1 * (t_i_1d(ji, 1) - t_su_1d(ji))
qcn_ice_bot_1d(ji) = - zkappa_i(ji, nlay_i) * zg1 * (t_bo_1d(ji) - t_i_1d(ji, nlay_i))
END DO
!$ACC END KERNELS
IF (k_jules == np_jules_OFF .OR. k_jules == np_jules_EMULE) THEN
!$ACC KERNELS
DO ji = 1, npti
hfx_err_dif_1d(ji) = hfx_err_dif_1d(ji) - (qns_ice_1d(ji) - zqns_ice_b(ji)) * a_i_1d(ji)
END DO
!$ACC END KERNELS
ELSE IF (k_jules == np_jules_ACTIVE) THEN
!$ACC KERNELS
DO ji = 1, npti
hfx_err_dif_1d(ji) = hfx_err_dif_1d(ji) - (qcn_ice_top_1d(ji) - qcn_ice_1d(ji)) * a_i_1d(ji)
END DO
!$ACC END KERNELS
END IF
IF (k_jules == np_jules_OFF .OR. k_jules == np_jules_ACTIVE) THEN
CALL ice_var_enthalpy
DO ji = 1, npti
zdq = - zq_ini(ji) + (SUM(e_i_1d(ji, 1 : nlay_i)) * h_i_1d(ji) * r1_nlay_i + SUM(e_s_1d(ji, 1 : nlay_s)) * h_s_1d(ji) * r1_nlay_s)
IF (k_jules == np_jules_OFF) THEN
IF (t_su_1d(ji) < rt0) THEN
zhfx_err = (qns_ice_1d(ji) + qsr_ice_1d(ji) - zradtr_i(ji, nlay_i) - qcn_ice_bot_1d(ji) + zdq * r1_rdtice) * a_i_1d(ji)
ELSE
zhfx_err = (qcn_ice_top_1d(ji) + qtr_ice_top_1d(ji) - zradtr_i(ji, nlay_i) - qcn_ice_bot_1d(ji) + zdq * r1_rdtice) * a_i_1d(ji)
END IF
ELSE IF (k_jules == np_jules_ACTIVE) THEN
zhfx_err = (qcn_ice_top_1d(ji) + qtr_ice_top_1d(ji) - zradtr_i(ji, nlay_i) - qcn_ice_bot_1d(ji) + zdq * r1_rdtice) * a_i_1d(ji)
END IF
hfx_err_dif_1d(ji) = hfx_err_dif_1d(ji) + zhfx_err
hfx_dif_1d(ji) = hfx_dif_1d(ji) - zdq * r1_rdtice * a_i_1d(ji)
END DO
END IF
!$ACC KERNELS
DO ji = 1, npti
IF (h_s_1d(ji) > 0.1_wp) THEN
cnd_ice_1d(ji) = 2._wp * zkappa_s(ji, 0)
ELSE
IF (h_i_1d(ji) > 0.1_wp) THEN
cnd_ice_1d(ji) = 2._wp * zkappa_i(ji, 0)
ELSE
cnd_ice_1d(ji) = 2._wp * ztcond_i(ji, 0) * 10._wp
END IF
END IF
t1_ice_1d(ji) = isnow(ji) * t_s_1d(ji, 1) + (1._wp - isnow(ji)) * t_i_1d(ji, 1)
END DO
!$ACC END KERNELS
IF (k_jules == np_jules_EMULE) THEN
!$ACC KERNELS
t_s_1d(1 : npti, :) = ztsold(1 : npti, :)
t_i_1d(1 : npti, :) = ztiold(1 : npti, :)
!$ACC END KERNELS
qcn_ice_1d(1 : npti) = qcn_ice_top_1d(1 : npti)
END IF
!$ACC KERNELS
DO ji = 1, npti
zfac = rn_cnd_s * zh_i(ji) + ztcond_i(ji, 1) * zh_s(ji)
IF (h_s_1d(ji) >= zhs_min) THEN
t_si_1d(ji) = (rn_cnd_s * zh_i(ji) * t_s_1d(ji, 1) + ztcond_i(ji, 1) * zh_s(ji) * t_i_1d(ji, 1)) / MAX(epsi10, zfac)
ELSE
t_si_1d(ji) = t_su_1d(ji)
END IF
END DO
!$ACC END KERNELS
END SUBROUTINE ice_thd_zdf_BL99
END MODULE icethd_zdf_BL99