dyn3d/Guide/guide.f

MODULE guide_m

  ! From dyn3d/guide.F, version 1.3 2005/05/25 13:10:09
  ! and dyn3d/guide.h, version 1.1.1.1 2004/05/19 12:53:06

  IMPLICIT NONE

CONTAINS

  SUBROUTINE guide(itau, ucov, vcov, teta, q, ps)

    ! Author: F.Hourdin

    USE comconst, ONLY: cpp, kappa
    USE conf_gcm_m, ONLY: day_step
    use conf_guide_m, only: guide_u, guide_v, guide_t, guide_q, ini_anal, &
         tau_min_u, tau_max_u, tau_min_v, tau_max_v, tau_min_t, tau_max_t, &
         tau_min_q, tau_max_q, online, factt
    USE dimens_m, ONLY: iim, jjm, llm
    USE disvert_m, ONLY: ap, bp, preff
    use dynetat0_m, only: grossismx, grossismy, rlatu, rlatv
    USE exner_hyb_m, ONLY: exner_hyb
    use init_tau2alpha_m, only: init_tau2alpha
    use nr_util, only: pi
    USE paramet_m, ONLY: iip1, ip1jmp1, jjp1, llmp1
    USE q_sat_m, ONLY: q_sat
    use read_reanalyse_m, only: read_reanalyse
    use tau2alpha_m, only: tau2alpha
    use writefield_m, only: writefield

    INTEGER, INTENT(IN):: itau
    REAL, intent(inout):: ucov(:, :, :) ! (iim + 1, jjm + 1, llm) vent covariant
    REAL, intent(inout):: vcov(:, :, :) ! (iim + 1, jjm, llm) ! vent covariant

    REAL, intent(inout):: teta(:, :, :) ! (iim + 1, jjm + 1, llm)
    ! température potentielle 

    REAL, intent(inout):: q(:, :, :) ! (iim + 1, jjm + 1, llm)
    REAL, intent(in):: ps(:, :) ! (iim + 1, jjm + 1) pression au sol

    ! Local:

    ! variables dynamiques pour les réanalyses

    REAL, save:: ucovrea1(iim + 1, jjm + 1, llm), vcovrea1(iim + 1, jjm, llm)
    ! vents covariants reanalyses

    REAL, save:: tetarea1(iim + 1, jjm + 1, llm) ! temp pot reales
    REAL, save:: qrea1(iim + 1, jjm + 1, llm) ! temp pot reales

    REAL, save:: ucovrea2(iim + 1, jjm + 1, llm), vcovrea2(iim + 1, jjm, llm)
    ! vents covariants reanalyses

    REAL, save:: tetarea2(iim + 1, jjm + 1, llm) ! temp pot reales
    REAL, save:: qrea2(iim + 1, jjm + 1, llm) ! temp pot reales

    ! alpha détermine la part des injections de données à chaque étape
    ! alpha=0 signifie pas d'injection
    ! alpha=1 signifie injection totale
    REAL, save:: alpha_q(iim + 1, jjm + 1)
    REAL, save:: alpha_t(iim + 1, jjm + 1)
    REAL, save:: alpha_u(iim + 1, jjm + 1), alpha_v(iim + 1, jjm)

    INTEGER l
    REAL tau

    ! TEST SUR QSAT
    REAL p(iim + 1, jjm + 1, llmp1)
    real pk(iim + 1, jjm + 1, llm), pks(iim + 1, jjm + 1)
    REAL qsat(iim + 1, jjm + 1, llm)

    REAL dxdys(iip1, jjp1), dxdyu(iip1, jjp1), dxdyv(iip1, jjm)

    !-----------------------------------------------------------------------

    IF (itau == 0) THEN
       IF (online) THEN
          IF (abs(grossismx - 1.) < 0.1 .OR. abs(grossismy - 1.) < 0.1) THEN
             ! grille regulière
             if (guide_u) alpha_u = factt / tau_max_u
             if (guide_v) alpha_v = factt / tau_max_v
             if (guide_t) alpha_t = factt / tau_max_t
             if (guide_q) alpha_q = factt / tau_max_q
          else
             call init_tau2alpha(dxdys, dxdyu, dxdyv)

             if (guide_u) then
                CALL tau2alpha(dxdyu, rlatu, tau_min_u, tau_max_u, alpha_u)
                CALL writefield("alpha_u", alpha_u)
             end if

             if (guide_v) then
                CALL tau2alpha(dxdyv, rlatv, tau_min_v, tau_max_v, alpha_v)
                CALL writefield("alpha_v", alpha_v)
             end if

             if (guide_t) then
                CALL tau2alpha(dxdys, rlatu, tau_min_t, tau_max_t, alpha_t)
                CALL writefield("alpha_t", alpha_t)
             end if

             if (guide_q)  then
                CALL tau2alpha(dxdys, rlatu, tau_min_q, tau_max_q, alpha_q)
                CALL writefield("alpha_q", alpha_q)
             end if
          end IF
       ELSE
          ! Cas où on force exactement par les variables analysées
          if (guide_u) alpha_u = 1.
          if (guide_v) alpha_v = 1.
          if (guide_t) alpha_t = 1.
          if (guide_q) alpha_q = 1.
       END IF

       ! Lecture du premier état des réanalyses :
       CALL read_reanalyse(ps, ucovrea2, vcovrea2, tetarea2, qrea2)
       qrea2 = max(qrea2, 0.1)

       if (ini_anal) then
          IF (guide_u) ucov = ucovrea2
          IF (guide_v) vcov = vcovrea2
          IF (guide_t) teta = tetarea2

          IF (guide_q) then
             ! Calcul de l'humidité saturante :
             forall (l = 1: llm + 1) p(:, :, l) = ap(l) + bp(l) * ps
             CALL exner_hyb(ps, p, pks, pk)
             q = q_sat(pk * teta / cpp, preff * (pk / cpp)**(1. / kappa)) &
                  * qrea2 * 0.01
          end IF
       end if
    END IF

    ! Importation des vents, pression et temp\'erature r\'eels :

    ! Nudging fields are given 4 times per day:
    IF (mod(itau, day_step / 4) == 0) THEN
       vcovrea1 = vcovrea2
       ucovrea1 = ucovrea2
       tetarea1 = tetarea2
       qrea1 = qrea2

       CALL read_reanalyse(ps, ucovrea2, vcovrea2, tetarea2, qrea2)
       qrea2 = max(qrea2, 0.1)

       if (guide_u) then
          CALL writefield("ucov", ucov)
          CALL writefield("ucovrea2", ucovrea2)
       end if

       if (guide_t) then
          CALL writefield("teta", teta)
          CALL writefield("tetarea2", tetarea2)
       end if

       if (guide_q) then
          CALL writefield("qrea2", qrea2)
          CALL writefield("q", q)
       end if
    END IF

    ! Guidage

    tau = mod(real(itau) / real(day_step / 4), 1.)

    ! x_gcm = a * x_gcm + (1 - a) * x_reanalyses

    IF (guide_u) forall (l = 1: llm) ucov(:, :, l) = (1. - alpha_u) &
         * ucov(:, :, l) + alpha_u * ((1. - tau) * ucovrea1(:, :, l) + tau &
         * ucovrea2(:, :, l))

    IF (guide_v) forall (l = 1: llm) vcov(:, :, l) = (1. - alpha_v) &
         * vcov(:, :, l) + alpha_v * ((1. - tau) * vcovrea1(:, :, l) + tau &
         * vcovrea2(:, :, l))

    IF (guide_t) forall (l = 1: llm) teta(:, :, l) = (1. - alpha_t) &
         * teta(:, :, l) + alpha_t * ((1. - tau) * tetarea1(:, :, l) + tau &
         * tetarea2(:, :, l))

    IF (guide_q) THEN
       ! Calcul de l'humidité saturante :
       forall (l = 1: llm + 1) p(:, :, l) = ap(l) + bp(l) * ps
       CALL exner_hyb(ps, p, pks, pk)
       qsat = q_sat(pk * teta / cpp, preff * (pk / cpp)**(1. / kappa))

       ! humidité relative en % -> humidité spécifique
       forall (l = 1: llm) q(:, :, l) = (1. - alpha_q) * q(:, :, l) &
            + alpha_q * (qsat(:, :, l) * ((1. - tau) * qrea1(:, :, l) &
            + tau * qrea2(:, :, l)) * 0.01)
    END IF

  END SUBROUTINE guide

END MODULE guide_m
1	guez	20	MODULE guide_m
2	guez	3
3	guez	29	! From dyn3d/guide.F, version 1.3 2005/05/25 13:10:09
4			! and dyn3d/guide.h, version 1.1.1.1 2004/05/19 12:53:06
5	guez	3
6	guez	37	IMPLICIT NONE
7
8	guez	20	CONTAINS
9	guez	3
10	guez	102	SUBROUTINE guide(itau, ucov, vcov, teta, q, ps)
11	guez	3
12	guez	29	! Author: F.Hourdin
13	guez	3
14	guez	115	USE comconst, ONLY: cpp, kappa
15			USE conf_gcm_m, ONLY: day_step
16	guez	173	use conf_guide_m, only: guide_u, guide_v, guide_t, guide_q, ini_anal, &
17			tau_min_u, tau_max_u, tau_min_v, tau_max_v, tau_min_t, tau_max_t, &
18			tau_min_q, tau_max_q, online, factt
19	guez	88	USE dimens_m, ONLY: iim, jjm, llm
20	guez	135	USE disvert_m, ONLY: ap, bp, preff
21	guez	139	use dynetat0_m, only: grossismx, grossismy, rlatu, rlatv
22	guez	83	USE exner_hyb_m, ONLY: exner_hyb
23	guez	115	use init_tau2alpha_m, only: init_tau2alpha
24	guez	39	use nr_util, only: pi
25	guez	103	USE paramet_m, ONLY: iip1, ip1jmp1, jjp1, llmp1
26	guez	83	USE q_sat_m, ONLY: q_sat
27	guez	88	use read_reanalyse_m, only: read_reanalyse
28	guez	109	use tau2alpha_m, only: tau2alpha
29	guez	108	use writefield_m, only: writefield
30	guez	3
31	guez	83	INTEGER, INTENT(IN):: itau
32	guez	102	REAL, intent(inout):: ucov(:, :, :) ! (iim + 1, jjm + 1, llm) vent covariant
33			REAL, intent(inout):: vcov(:, :, :) ! (iim + 1, jjm, llm) ! vent covariant
34
35	guez	108	REAL, intent(inout):: teta(:, :, :) ! (iim + 1, jjm + 1, llm)
36			! température potentielle
37
38			REAL, intent(inout):: q(:, :, :) ! (iim + 1, jjm + 1, llm)
39	guez	88	REAL, intent(in):: ps(:, :) ! (iim + 1, jjm + 1) pression au sol
40	guez	3
41	guez	83	! Local:
42
43	guez	108	! variables dynamiques pour les réanalyses
44	guez	102
45			REAL, save:: ucovrea1(iim + 1, jjm + 1, llm), vcovrea1(iim + 1, jjm, llm)
46			! vents covariants reanalyses
47
48	guez	90	REAL, save:: tetarea1(iim + 1, jjm + 1, llm) ! temp pot reales
49			REAL, save:: qrea1(iim + 1, jjm + 1, llm) ! temp pot reales
50	guez	102
51			REAL, save:: ucovrea2(iim + 1, jjm + 1, llm), vcovrea2(iim + 1, jjm, llm)
52			! vents covariants reanalyses
53
54	guez	90	REAL, save:: tetarea2(iim + 1, jjm + 1, llm) ! temp pot reales
55			REAL, save:: qrea2(iim + 1, jjm + 1, llm) ! temp pot reales
56	guez	3
57	guez	116	! alpha détermine la part des injections de données à chaque étape
58	guez	112	! alpha=0 signifie pas d'injection
59			! alpha=1 signifie injection totale
60	guez	90	REAL, save:: alpha_q(iim + 1, jjm + 1)
61	guez	103	REAL, save:: alpha_t(iim + 1, jjm + 1)
62	guez	102	REAL, save:: alpha_u(iim + 1, jjm + 1), alpha_v(iim + 1, jjm)
63
64	guez	115	INTEGER l
65	guez	102	REAL tau
66	guez	3
67	guez	44	! TEST SUR QSAT
68	guez	90	REAL p(iim + 1, jjm + 1, llmp1)
69			real pk(iim + 1, jjm + 1, llm), pks(iim + 1, jjm + 1)
70			REAL qsat(iim + 1, jjm + 1, llm)
71	guez	3
72	guez	115	REAL dxdys(iip1, jjp1), dxdyu(iip1, jjp1), dxdyv(iip1, jjm)
73
74	guez	29	!-----------------------------------------------------------------------
75	guez	3
76	guez	172	IF (itau == 0) THEN
77	guez	102	IF (online) THEN
78	guez	115	IF (abs(grossismx - 1.) < 0.1 .OR. abs(grossismy - 1.) < 0.1) THEN
79			! grille regulière
80			if (guide_u) alpha_u = factt / tau_max_u
81			if (guide_v) alpha_v = factt / tau_max_v
82			if (guide_t) alpha_t = factt / tau_max_t
83			if (guide_q) alpha_q = factt / tau_max_q
84			else
85			call init_tau2alpha(dxdys, dxdyu, dxdyv)
86	guez	3
87	guez	115	if (guide_u) then
88			CALL tau2alpha(dxdyu, rlatu, tau_min_u, tau_max_u, alpha_u)
89			CALL writefield("alpha_u", alpha_u)
90			end if
91	guez	3
92	guez	115	if (guide_v) then
93			CALL tau2alpha(dxdyv, rlatv, tau_min_v, tau_max_v, alpha_v)
94			CALL writefield("alpha_v", alpha_v)
95			end if
96	guez	3
97	guez	115	if (guide_t) then
98			CALL tau2alpha(dxdys, rlatu, tau_min_t, tau_max_t, alpha_t)
99			CALL writefield("alpha_t", alpha_t)
100			end if
101
102			if (guide_q) then
103			CALL tau2alpha(dxdys, rlatu, tau_min_q, tau_max_q, alpha_q)
104			CALL writefield("alpha_q", alpha_q)
105			end if
106			end IF
107	guez	102	ELSE
108	guez	107	! Cas où on force exactement par les variables analysées
109	guez	115	if (guide_u) alpha_u = 1.
110			if (guide_v) alpha_v = 1.
111			if (guide_t) alpha_t = 1.
112	guez	112	if (guide_q) alpha_q = 1.
113	guez	102	END IF
114	guez	3
115	guez	172	! Lecture du premier état des réanalyses :
116			CALL read_reanalyse(ps, ucovrea2, vcovrea2, tetarea2, qrea2)
117			qrea2 = max(qrea2, 0.1)
118	guez	3
119	guez	172	if (ini_anal) then
120			IF (guide_u) ucov = ucovrea2
121			IF (guide_v) vcov = vcovrea2
122			IF (guide_t) teta = tetarea2
123	guez	115
124	guez	172	IF (guide_q) then
125			! Calcul de l'humidité saturante :
126			forall (l = 1: llm + 1) p(:, :, l) = ap(l) + bp(l) * ps
127			CALL exner_hyb(ps, p, pks, pk)
128			q = q_sat(pk * teta / cpp, preff * (pk / cpp)**(1. / kappa)) &
129			* qrea2 * 0.01
130			end IF
131	guez	112	end if
132	guez	172	END IF
133	guez	3
134	guez	172	! Importation des vents, pression et temp\'erature r\'eels :
135	guez	115
136	guez	102	! Nudging fields are given 4 times per day:
137			IF (mod(itau, day_step / 4) == 0) THEN
138			vcovrea1 = vcovrea2
139			ucovrea1 = ucovrea2
140			tetarea1 = tetarea2
141			qrea1 = qrea2
142	guez	3
143	guez	172	CALL read_reanalyse(ps, ucovrea2, vcovrea2, tetarea2, qrea2)
144	guez	102	qrea2 = max(qrea2, 0.1)
145	guez	112
146			if (guide_u) then
147			CALL writefield("ucov", ucov)
148			CALL writefield("ucovrea2", ucovrea2)
149			end if
150
151			if (guide_t) then
152			CALL writefield("teta", teta)
153			CALL writefield("tetarea2", tetarea2)
154			end if
155
156			if (guide_q) then
157			CALL writefield("qrea2", qrea2)
158			CALL writefield("q", q)
159			end if
160	guez	102	END IF
161	guez	3
162	guez	102	! Guidage
163	guez	3
164	guez	102	tau = mod(real(itau) / real(day_step / 4), 1.)
165	guez	3
166	guez	102	! x_gcm = a * x_gcm + (1 - a) * x_reanalyses
167	guez	3
168	guez	172	IF (guide_u) forall (l = 1: llm) ucov(:, :, l) = (1. - alpha_u) &
169			* ucov(:, :, l) + alpha_u * ((1. - tau) * ucovrea1(:, :, l) + tau &
170			* ucovrea2(:, :, l))
171	guez	3
172	guez	172	IF (guide_v) forall (l = 1: llm) vcov(:, :, l) = (1. - alpha_v) &
173			* vcov(:, :, l) + alpha_v * ((1. - tau) * vcovrea1(:, :, l) + tau &
174			* vcovrea2(:, :, l))
175	guez	3
176	guez	172	IF (guide_t) forall (l = 1: llm) teta(:, :, l) = (1. - alpha_t) &
177			* teta(:, :, l) + alpha_t * ((1. - tau) * tetarea1(:, :, l) + tau &
178			* tetarea2(:, :, l))
179
180	guez	102	IF (guide_q) THEN
181			! Calcul de l'humidité saturante :
182			forall (l = 1: llm + 1) p(:, :, l) = ap(l) + bp(l) * ps
183			CALL exner_hyb(ps, p, pks, pk)
184			qsat = q_sat(pk * teta / cpp, preff * (pk / cpp)**(1. / kappa))
185	guez	3
186	guez	102	! humidité relative en % -> humidité spécifique
187	guez	172	forall (l = 1: llm) q(:, :, l) = (1. - alpha_q) * q(:, :, l) &
188			+ alpha_q * (qsat(:, :, l) * ((1. - tau) * qrea1(:, :, l) &
189			+ tau * qrea2(:, :, l)) * 0.01)
190	guez	102	END IF
191	guez	3
192	guez	29	END SUBROUTINE guide
193	guez	20
194			END MODULE guide_m