38 delta_ts, glac_index, z_sl, dzsl_dtau, z_mar)
49 real(dp),
intent(in) :: time, dtime, dxi, deta
51 real(dp),
intent(out) :: delta_ts, glac_index, dzsl_dtau, z_mar
52 real(dp),
intent(inout) :: z_sl
59 integer(i4b) :: i, j, n
60 integer(i4b) :: i_gr, i_kl
61 integer(i4b) :: nrec_temp_precip
62 integer(i4b),
save :: nrec_temp_precip_save = -1
64 real(dp) :: z_sl_min, t1, t2, t3, t4, t5, t6
65 real(dp) :: time_gr, time_kl
66 real(dp) :: z_sle_present, z_sle_help
67 real(dp),
dimension(0:JMAX,0:IMAX,0:12) :: precip
68 real(dp),
dimension(0:JMAX,0:IMAX) :: &
69 snowfall, rainfall, melt, melt_star
70 real(dp),
dimension(0:JMAX,0:IMAX,12) :: temp_mm
71 real(dp),
dimension(0:JMAX,0:IMAX) :: temp_ma, temp_ampl
72 real(dp),
dimension(0:JMAX,0:IMAX) :: temp_ma_anom, temp_mj_anom, precip_ma_anom
73 real(dp),
dimension(0:IMAX,0:JMAX),
save :: temp_ma_anom_tra, temp_mj_anom_tra, &
78 real(dp),
dimension(12) :: temp_mm_help
79 real(dp) :: temp_jja_help
80 real(dp),
dimension(0:JMAX,0:IMAX) :: et
81 real(dp) :: theta_ma, c_ma, kappa_ma, gamma_ma, &
82 theta_mj, c_mj, kappa_mj, gamma_mj
83 real(dp) :: sine_factor
84 real(dp) :: gamma_p, zs_thresh, &
85 temp_rain, temp_snow, &
86 inv_delta_temp_rain_snow, coeff(0:5), inv_sqrt2_s_stat, &
87 precip_fact, frac_solid
89 phi_sep, temp_lt, temp_ht, inv_delta_temp_ht_lt, &
90 beta1_lt, beta1_ht, beta2_lt, beta2_ht, &
91 beta1, beta2, pmax, mu, lambda_lti, temp_lti
92 real(dp),
dimension(256) :: pdd_mod_lat, delta_pdd_mod_lat_inv, &
93 pdd_mod_fac_w, pdd_mod_fac_e, pdd_mod_fac
94 real(dp) :: lon_w_e_sep, pdd_mod_fac_interpol
95 logical,
dimension(0:JMAX,0:IMAX) :: check_point
100 integer(i4b) :: nc3cor(3)
102 integer(i4b) :: nc3cnt(3)
106 real(dp),
parameter :: &
107 inv_twelve = 1.0_dp/12.0_dp, one_third = 1.0_dp/3.0_dp
109 character(len=64),
parameter :: thisroutine =
'boundary'
128 delta_ts = sine_amplit &
129 *cos(2.0_dp*pi*time/(sine_period*year_sec)) &
136 if (time/year_sec <
real(grip_time_min,dp)) then
137 delta_ts = griptemp(0)
138 else if (time/year_sec <
real(grip_time_max,dp)) then
140 i_kl = floor(((time/year_sec) &
141 -
real(grip_time_min,dp))/
real(grip_time_stp,dp))
144 i_gr = ceiling(((time/year_sec) &
145 -
real(grip_time_min,dp))/
real(grip_time_stp,dp))
146 i_gr = min(i_gr, ndata_grip)
148 if (i_kl == i_gr)
then
150 delta_ts = griptemp(i_kl)
154 time_kl = (grip_time_min + i_kl*grip_time_stp) *year_sec
155 time_gr = (grip_time_min + i_gr*grip_time_stp) *year_sec
157 delta_ts = griptemp(i_kl) &
158 +(griptemp(i_gr)-griptemp(i_kl)) &
159 *(time-time_kl)/(time_gr-time_kl)
165 delta_ts = griptemp(ndata_grip)
168 delta_ts = delta_ts * grip_temp_fact
175 if (time/year_sec <
real(gi_time_min,dp)) then
176 glac_index = glacial_index(0)
177 else if (time/year_sec <
real(gi_time_max,dp)) then
179 i_kl = floor(((time/year_sec) &
180 -
real(gi_time_min,dp))/
real(gi_time_stp,dp))
183 i_gr = ceiling(((time/year_sec) &
184 -
real(gi_time_min,dp))/
real(gi_time_stp,dp))
185 i_gr = min(i_gr, ndata_gi)
187 if (i_kl == i_gr)
then
189 glac_index = glacial_index(i_kl)
193 time_kl = (gi_time_min + i_kl*gi_time_stp) *year_sec
194 time_gr = (gi_time_min + i_gr*gi_time_stp) *year_sec
196 glac_index = glacial_index(i_kl) &
197 +(glacial_index(i_gr)-glacial_index(i_kl)) &
198 *(time-time_kl)/(time_gr-time_kl)
204 glac_index = glacial_index(ndata_gi)
210 #elif ( (TSURFACE==6) && (ACCSURFACE==6) )
212 if (time/year_sec <= temp_precip_time_min)
then
214 else if (time/year_sec < temp_precip_time_max)
then
215 nrec_temp_precip = nint( ((time/year_sec)-temp_precip_time_min) &
216 / temp_precip_time_stp )
218 nrec_temp_precip = ndata_temp_precip
221 if ( nrec_temp_precip < 0 )
then
222 stop
' boundary: nrec_temp_precip < 0, not allowed!'
223 else if ( nrec_temp_precip > ndata_temp_precip )
then
224 stop
' boundary: nrec_temp_precip > ndata_temp_precip, not allowed!'
227 if ( nrec_temp_precip /= nrec_temp_precip_save )
then
231 nc3cor(3) = nrec_temp_precip + 1
236 call
check( nf90_inq_varid(ncid_temp_precip,
'annualtemp_anom', ncv), &
238 call
check( nf90_get_var(ncid_temp_precip, ncv, temp_ma_anom_tra, &
239 start=nc3cor, count=nc3cnt), thisroutine )
241 call
check( nf90_inq_varid(ncid_temp_precip,
'julytemp_anom', ncv), &
243 call
check( nf90_get_var(ncid_temp_precip, ncv, temp_mj_anom_tra, &
244 start=nc3cor, count=nc3cnt), thisroutine )
246 call
check( nf90_inq_varid(ncid_temp_precip,
'precipitation_anom', ncv), &
248 call
check( nf90_get_var(ncid_temp_precip, ncv, precip_ma_anom_tra, &
249 start=nc3cor, count=nc3cnt), thisroutine )
253 temp_ma_anom = transpose(temp_ma_anom_tra)
254 temp_mj_anom = transpose(temp_mj_anom_tra)
255 precip_ma_anom = transpose(precip_ma_anom_tra) *(1.0e-03_dp/year_sec)*(rho_w/rho)
258 nrec_temp_precip_save = nrec_temp_precip
273 t1 = -250000.0_dp *year_sec
274 t2 = -140000.0_dp *year_sec
275 t3 = -125000.0_dp *year_sec
276 t4 = -21000.0_dp *year_sec
277 t5 = -8000.0_dp *year_sec
278 t6 = 0.0_dp *year_sec
282 else if (time < t2)
then
283 z_sl = z_sl_min*(time-t1)/(t2-t1)
284 else if (time < t3)
then
285 z_sl = -z_sl_min*(time-t3)/(t3-t2)
286 else if (time < t4)
then
287 z_sl = z_sl_min*(time-t3)/(t4-t3)
288 else if (time < t5)
then
289 z_sl = -z_sl_min*(time-t5)/(t5-t4)
290 else if (time < t6)
then
300 if (time/year_sec <
real(specmap_time_min,dp)) then
301 z_sl = specmap_zsl(0)
302 else if (time/year_sec <
real(specmap_time_max,dp)) then
304 i_kl = floor(((time/year_sec) &
305 -
real(specmap_time_min,dp))/
real(specmap_time_stp,dp))
308 i_gr = ceiling(((time/year_sec) &
309 -
real(specmap_time_min,dp))/
real(specmap_time_stp,dp))
310 i_gr = min(i_gr, ndata_specmap)
312 if (i_kl == i_gr)
then
314 z_sl = specmap_zsl(i_kl)
318 time_kl = (specmap_time_min + i_kl*specmap_time_stp) *year_sec
319 time_gr = (specmap_time_min + i_gr*specmap_time_stp) *year_sec
321 z_sl = specmap_zsl(i_kl) &
322 +(specmap_zsl(i_gr)-specmap_zsl(i_kl)) &
323 *(time-time_kl)/(time_gr-time_kl)
329 z_sl = specmap_zsl(ndata_specmap)
336 if ( z_sl_old > -999999.9_dp )
then
337 dzsl_dtau = (z_sl-z_sl_old)/dtime
346 #if ( MARINE_ICE_CALVING==2 || MARINE_ICE_CALVING==3 )
348 #elif ( MARINE_ICE_CALVING==4 || MARINE_ICE_CALVING==5 )
349 z_mar = fact_z_mar*z_sl
350 #elif ( MARINE_ICE_CALVING==6 || MARINE_ICE_CALVING==7 )
351 if (z_sl >= -80.0_dp)
then
354 z_mar = 10.25_dp*(z_sl+80.0_dp)-200.0_dp
356 z_mar = fact_z_mar*z_mar
368 check_point(j,i) = .false.
374 if (maske(j,i) >= 2)
then
375 check_point(j ,i ) = .true.
376 check_point(j ,i+1) = .true.
377 check_point(j ,i-1) = .true.
378 check_point(j+1,i ) = .true.
379 check_point(j-1,i ) = .true.
386 if (check_point(j,i))
then
396 if (check_point(j,i))
then
397 maske(j,i) = maske_neu(j,i)
404 #if TEMP_PRESENT_PARA == 1 /* Parameterization by Ritz et al. (1997) */
407 gamma_ma = -7.992e-03_dp
412 gamma_mj = -6.277e-03_dp
416 #elif TEMP_PRESENT_PARA == 2 /* Parameterization by Fausto et al. (2009) */
419 gamma_ma = -6.309e-03_dp
421 kappa_ma = -0.0672_dp
424 gamma_mj = -5.426e-03_dp
426 kappa_mj = -0.0518_dp
430 stop
' boundary: Parameter TEMP_PRESENT_PARA must be either 1 or 2!'
439 temp_ma_present(j,i) = theta_ma &
441 + c_ma*phi(j,i)*pi_180_inv &
442 + kappa_ma*(modulo(lambda(j,i)+pi,2.0_dp*pi)-pi)*pi_180_inv
447 temp_mj_present(j,i) = theta_mj &
449 + c_mj*phi(j,i)*pi_180_inv &
450 + kappa_mj*(modulo(lambda(j,i)+pi,2.0_dp*pi)-pi)*pi_180_inv
457 temp_ma(j,i) = temp_ma_present(j,i) + delta_ts
458 temp_mm(j,i,7) = temp_mj_present(j,i) + delta_ts
460 #elif (TSURFACE == 5)
464 temp_ma(j,i) = temp_ma_present(j,i) + glac_index*temp_ma_lgm_anom(j,i)
465 temp_mm(j,i,7) = temp_mj_present(j,i) + glac_index*temp_mj_lgm_anom(j,i)
467 #elif (TSURFACE == 6)
472 temp_ma(j,i) = temp_ma_present(j,i) + temp_ma_anom_fact*temp_ma_anom(j,i)
473 temp_mm(j,i,7) = temp_mj_present(j,i) + temp_mj_anom_fact*temp_mj_anom(j,i)
479 temp_ampl(j,i) = temp_mm(j,i,7) - temp_ma(j,i)
481 if (temp_ampl(j,i) < eps)
then
492 sine_factor = sin((
real(n,dp)-4.0_dp)*pi/6.0_dp)
496 temp_mm(j,i,n) = temp_ma(j,i) + sine_factor*temp_ampl(j,i)
504 #if (ELEV_DESERT == 1)
506 gamma_p = gamma_p*1.0e-03_dp
508 zs_thresh = zs_thresh
512 #if (SOLID_PRECIP == 1) /* Marsiat (1994) */
519 inv_delta_temp_rain_snow = 1.0_dp/(temp_rain-temp_snow)
521 #elif (SOLID_PRECIP == 2) /* Bales et al. (2009) */
528 coeff(0) = 5.4714e-01_dp
529 coeff(1) = -9.1603e-02_dp
530 coeff(2) = -3.314e-03_dp
531 coeff(3) = 4.66e-04_dp
532 coeff(4) = 3.8e-05_dp
533 coeff(5) = 6.0e-07_dp
535 #elif (SOLID_PRECIP == 3) /* Huybrechts and de Wolde (1999) */
539 temp_snow = temp_rain
545 inv_sqrt2_s_stat = 1.0_dp/(sqrt(2.0_dp)*s_stat)
549 #if (ABLSURFACE==1 || ABLSURFACE==2)
553 phi_sep = phi_sep_0*pi_180
558 inv_delta_temp_ht_lt = 1.0_dp/(temp_ht-temp_lt)
560 beta1_lt = beta1_lt_0 *(0.001_dp/86400.0_dp)*(rho_w/rho)
562 beta1_ht = beta1_ht_0 *(0.001_dp/86400.0_dp)*(rho_w/rho)
564 beta2_lt = beta2_lt_0 *(0.001_dp/86400.0_dp)*(rho_w/rho)
566 beta2_ht = beta2_ht_0 *(0.001_dp/86400.0_dp)*(rho_w/rho)
569 mu = mu_0 *(1000.0_dp*86400.0_dp)*(rho/rho_w)
571 #if (PDD_MODIFIER==2)
573 lon_w_e_sep = lon_w_e_sep *pi_180
575 if (lon_w_e_sep < 0.0_dp)
then
576 lon_w_e_sep = lon_w_e_sep + 2.0_dp*pi
577 else if (lon_w_e_sep >= (2.0_dp*pi))
then
578 lon_w_e_sep = lon_w_e_sep - 2.0_dp*pi
582 pdd_mod_fac_w = 0.0_dp
583 pdd_mod_fac_e = 0.0_dp
585 pdd_mod_lat( 1) = pdd_mod_lat_01 *pi_180
586 pdd_mod_fac_w( 1) = pdd_mod_fac_w_01
587 pdd_mod_fac_e( 1) = pdd_mod_fac_e_01
588 pdd_mod_lat( 2) = pdd_mod_lat_02 *pi_180
589 pdd_mod_fac_w( 2) = pdd_mod_fac_w_02
590 pdd_mod_fac_e( 2) = pdd_mod_fac_e_02
591 pdd_mod_lat( 3) = pdd_mod_lat_03 *pi_180
592 pdd_mod_fac_w( 3) = pdd_mod_fac_w_03
593 pdd_mod_fac_e( 3) = pdd_mod_fac_e_03
594 pdd_mod_lat( 4) = pdd_mod_lat_04 *pi_180
595 pdd_mod_fac_w( 4) = pdd_mod_fac_w_04
596 pdd_mod_fac_e( 4) = pdd_mod_fac_e_04
597 pdd_mod_lat( 5) = pdd_mod_lat_05 *pi_180
598 pdd_mod_fac_w( 5) = pdd_mod_fac_w_05
599 pdd_mod_fac_e( 5) = pdd_mod_fac_e_05
600 pdd_mod_lat( 6) = pdd_mod_lat_06 *pi_180
601 pdd_mod_fac_w( 6) = pdd_mod_fac_w_06
602 pdd_mod_fac_e( 6) = pdd_mod_fac_e_06
603 pdd_mod_lat( 7) = pdd_mod_lat_07 *pi_180
604 pdd_mod_fac_w( 7) = pdd_mod_fac_w_07
605 pdd_mod_fac_e( 7) = pdd_mod_fac_e_07
606 pdd_mod_lat( 8) = pdd_mod_lat_08 *pi_180
607 pdd_mod_fac_w( 8) = pdd_mod_fac_w_08
608 pdd_mod_fac_e( 8) = pdd_mod_fac_e_08
609 pdd_mod_lat( 9) = pdd_mod_lat_09 *pi_180
610 pdd_mod_fac_w( 9) = pdd_mod_fac_w_09
611 pdd_mod_fac_e( 9) = pdd_mod_fac_e_09
612 pdd_mod_lat( 10) = pdd_mod_lat_10 *pi_180
613 pdd_mod_fac_w(10) = pdd_mod_fac_w_10
614 pdd_mod_fac_e(10) = pdd_mod_fac_e_10
616 delta_pdd_mod_lat_inv = 0.0_dp
619 delta_pdd_mod_lat_inv(n) = 1.0_dp/(pdd_mod_lat(n+1)-pdd_mod_lat(n))
624 #elif (ABLSURFACE==3)
626 lambda_lti = lambda_lti *(0.001_dp/year_sec)*(rho_w/rho)
636 #if (ABLSURFACE==1 || ABLSURFACE==2)
638 if (phi(j,i) <= phi_sep)
then
645 if (temp_mm(j,i,7) >= temp_ht)
then
648 else if (temp_mm(j,i,7) <= temp_lt)
then
653 + (beta1_ht-beta1_lt) &
654 *inv_delta_temp_ht_lt*(temp_mm(j,i,7)-temp_lt)
656 + (beta2_lt-beta2_ht) &
657 *(inv_delta_temp_ht_lt*(temp_ht-temp_mm(j,i,7)))**3
662 #if (PDD_MODIFIER==2)
664 if ( lambda(j,i) <= lon_w_e_sep )
then
665 pdd_mod_fac = pdd_mod_fac_w
667 pdd_mod_fac = pdd_mod_fac_e
670 if (phi(j,i) <= pdd_mod_lat(1))
then
672 beta1 = beta1 * pdd_mod_fac(1)
673 beta2 = beta2 * pdd_mod_fac(1)
675 else if (phi(j,i) >= pdd_mod_lat(n_pdd_mod))
then
677 beta1 = beta1 * pdd_mod_fac(n_pdd_mod)
678 beta2 = beta2 * pdd_mod_fac(n_pdd_mod)
684 if ( (phi(j,i) >= pdd_mod_lat(n)) &
686 (phi(j,i) <= pdd_mod_lat(n+1)) )
then
688 pdd_mod_fac_interpol = pdd_mod_fac(n) &
689 + (pdd_mod_fac(n+1)-pdd_mod_fac(n)) &
690 *(phi(j,i)-pdd_mod_lat(n)) &
691 *delta_pdd_mod_lat_inv(n)
693 beta1 = beta1 * pdd_mod_fac_interpol
694 beta2 = beta2 * pdd_mod_fac_interpol
710 #if (ACCSURFACE <= 3)
714 #if (ELEV_DESERT == 0)
718 #elif (ELEV_DESERT == 1)
720 if (zs_ref(j,i) < zs_thresh)
then
722 = exp(gamma_p*(max(zs(j,i),zs_thresh)-zs_thresh))
725 = exp(gamma_p*(max(zs(j,i),zs_thresh)-zs_ref(j,i)))
729 stop
' boundary: Parameter ELEV_DESERT must be either 0 or 1!'
733 precip(j,i,n) = precip_present(j,i,n)*precip_fact
741 precip_fact = accfact
743 precip_fact = 1.0_dp + gamma_s*delta_ts
745 precip_fact = exp(gamma_s*delta_ts)
748 #if (ACCSURFACE <= 3)
750 precip(j,i,0) = 0.0_dp
753 precip(j,i,n) = precip(j,i,n)*precip_fact
754 precip(j,i,0) = precip(j,i,0) + precip(j,i,n)*inv_twelve
758 #elif (ACCSURFACE == 5)
760 precip(j,i,0) = 0.0_dp
764 #if (PRECIP_ANOM_INTERPOL==1)
765 precip_fact = 1.0_dp-glac_index+glac_index*precip_lgm_anom(j,i,n)
767 #elif (PRECIP_ANOM_INTERPOL==2)
768 precip_fact = exp(-glac_index*gamma_precip_lgm_anom(j,i,n))
772 precip(j,i,n) = precip_present(j,i,n)*precip_fact
773 precip(j,i,0) = precip(j,i,0) + precip(j,i,n)*inv_twelve
777 #elif (ACCSURFACE == 6)
781 precip(j,i,0) = precip_ma_present(j,i) + precip_anom_fact*precip_ma_anom(j,i)
785 precip(j,i,n) = precip(j,i,0)
793 accum(j,i) = precip(j,i,0)
795 snowfall(j,i) = 0.0_dp
799 #if (SOLID_PRECIP == 1) /* Marsiat (1994) */
801 if (temp_mm(j,i,n) >= temp_rain)
then
803 else if (temp_mm(j,i,n) <= temp_snow)
then
806 frac_solid = (temp_rain-temp_mm(j,i,n))*inv_delta_temp_rain_snow
809 #elif (SOLID_PRECIP == 2) /* Bales et al. (2009) */
811 if (temp_mm(j,i,n) >= temp_rain)
then
813 else if (temp_mm(j,i,n) <= temp_snow)
then
816 frac_solid = coeff(0) + temp_mm(j,i,n) * ( coeff(1) &
817 + temp_mm(j,i,n) * ( coeff(2) &
818 + temp_mm(j,i,n) * ( coeff(3) &
819 + temp_mm(j,i,n) * ( coeff(4) &
820 + temp_mm(j,i,n) * coeff(5) ) ) ) )
824 #elif (SOLID_PRECIP == 3) /* Huybrechts and de Wolde (1999) */
826 frac_solid = 1.0_dp &
827 - 0.5_dp*
erfcc((temp_rain-temp_mm(j,i,n))*inv_sqrt2_s_stat)
831 snowfall(j,i) = snowfall(j,i) + precip(j,i,n)*frac_solid*inv_twelve
835 rainfall(j,i) = precip(j,i,0) - snowfall(j,i)
837 if (snowfall(j,i) < 0.0_dp) snowfall(j,i) = 0.0_dp
838 if (rainfall(j,i) < 0.0_dp) rainfall(j,i) = 0.0_dp
844 #if (ABLSURFACE==1 || ABLSURFACE==2)
849 temp_mm_help(n) = temp_mm(j,i,n)
852 call
pdd(temp_mm_help, s_stat, et(j,i))
859 if ((beta1*et(j,i)) <= (pmax*snowfall(j,i)))
then
860 melt_star(j,i) = beta1*et(j,i)
862 runoff(j,i) = melt(j,i)+rainfall(j,i)
864 melt_star(j,i) = pmax*snowfall(j,i)
865 melt(j,i) = beta2*(et(j,i)-melt_star(j,i)/beta1)
866 runoff(j,i) = melt(j,i)+rainfall(j,i)
869 #elif (ABLSURFACE==2)
871 if ( rainfall(j,i) <= (pmax*snowfall(j,i)) )
then
873 if ( (rainfall(j,i)+beta1*et(j,i)) <= (pmax*snowfall(j,i)) )
then
874 melt_star(j,i) = rainfall(j,i)+beta1*et(j,i)
876 runoff(j,i) = melt(j,i)
878 melt_star(j,i) = pmax*snowfall(j,i)
880 *(et(j,i)-(melt_star(j,i)-rainfall(j,i))/beta1)
881 runoff(j,i) = melt(j,i)
886 melt_star(j,i) = pmax*snowfall(j,i)
887 melt(j,i) = beta2*et(j,i)
888 runoff(j,i) = melt(j,i) + rainfall(j,i)-pmax*snowfall(j,i)
894 #elif (ABLSURFACE==3)
896 temp_jja_help = one_third*(temp_mm(j,i,6)+temp_mm(j,i,7)+temp_mm(j,i,8))
898 melt_star(j,i) = 0.0_dp
899 melt(j,i) = lambda_lti*max((temp_jja_help-temp_lti), 0.0_dp)
900 runoff(j,i) = melt(j,i) + rainfall(j,i)
910 as_perp(j,i) = accum(j,i) - evap(j,i) - runoff(j,i)
916 if (melt_star(j,i) >= melt(j,i))
then
917 temp_s(j,i) = temp_ma(j,i) &
918 +mu*(melt_star(j,i)-melt(j,i))
920 temp_s(j,i) = temp_ma(j,i)
923 if (temp_s(j,i) > -0.001_dp) temp_s(j,i) = -0.001_dp