[3] | 1 | MODULE flxrnf |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE flxrnf *** |
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| 4 | !! Ocean forcing: runoff |
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| 5 | !!===================================================================== |
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| 6 | #if defined key_orca_r05 |
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| 7 | !!---------------------------------------------------------------------- |
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| 8 | !! 'key_orca_r05' ORCA R05 configuration |
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| 9 | !!---------------------------------------------------------------------- |
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| 10 | # include "flxrnf_ORCA_R05.h90" |
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| 11 | #else |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | !! Default option Standard runoffs |
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| 14 | !!---------------------------------------------------------------------- |
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| 15 | |
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| 16 | !!---------------------------------------------------------------------- |
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| 17 | !! flx_rnf : monthly runoff read in a NetCDF file |
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| 18 | !!---------------------------------------------------------------------- |
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| 19 | !! * Modules used |
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| 20 | USE dom_oce ! ocean space and time domain |
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| 21 | USE phycst ! physical constants |
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| 22 | USE in_out_manager ! I/O manager |
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| 23 | USE daymod ! calendar |
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[473] | 24 | USE iom ! I/O module |
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[3] | 25 | |
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| 26 | IMPLICIT NONE |
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| 27 | PRIVATE |
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| 28 | |
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[18] | 29 | !! * Routine accessibility |
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[73] | 30 | PUBLIC flx_rnf ! routine call in step module |
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[18] | 31 | |
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[3] | 32 | !! * Shared module variables |
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[18] | 33 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: & !: |
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| 34 | runoff, & !: monthly runoff (kg/m2/s) |
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| 35 | upsadv, & !: mixed adv scheme in straits vicinity (hori.) |
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| 36 | upsrnfh !: mixed adv scheme in runoffs vicinity (hori.) |
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| 37 | REAL(wp), PUBLIC, DIMENSION(jpk) :: & !: |
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| 38 | upsrnfz !: mixed adv scheme in runoffs vicinity (vert.) |
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| 39 | INTEGER, PUBLIC :: & !: |
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[473] | 40 | nrunoff = 0 !: runoff option (namelist) |
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[3] | 41 | |
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| 42 | !! * Module variable |
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[18] | 43 | REAL(wp), DIMENSION(jpi,jpj,2) :: & !: |
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| 44 | rnfdta !: monthly runoff data array (kg/m2/s) |
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[473] | 45 | INTEGER :: & !: |
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| 46 | numrnf, & !: logical unit for runoff data |
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| 47 | nrnf1, nrnf2 !: first and second record used |
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[3] | 48 | !!---------------------------------------------------------------------- |
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[247] | 49 | !! OPA 9.0 , LOCEAN-IPSL (2005) |
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| 50 | !! $Header$ |
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| 51 | !! This software is governed by the CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
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[3] | 52 | !!---------------------------------------------------------------------- |
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| 53 | |
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| 54 | CONTAINS |
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| 55 | |
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| 56 | SUBROUTINE flx_rnf( kt ) |
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| 57 | !!---------------------------------------------------------------------- |
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| 58 | !! *** ROUTINE flx_rnf *** |
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| 59 | !! |
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| 60 | !! ** Purpose : Introduce a climatological run off forcing |
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| 61 | !! |
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| 62 | !! ** Method : |
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| 63 | !! Initialze each mouth of river with a monthly climatology |
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| 64 | !! provided from different data. |
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| 65 | !! C a u t i o n : upward water flux, runoff is negative |
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| 66 | !! set at the last loop of the routine |
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| 67 | !! |
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| 68 | !! ** Action : |
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| 69 | !! |
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| 70 | !! References : |
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| 71 | !! J. D. Milliman and R. H. Meade, 1983 : world-wide delivery |
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| 72 | !! of river sediment to the oceans, journal of geology vol 91 |
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| 73 | !! pp 1-21. |
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| 74 | !! G. L. Russell and J. R. Miller, 1990 : global river runoff |
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| 75 | !! calculated from a global atmospheric general circulation |
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| 76 | !! model, journal of hydrology, 117(1990), pp 241-254. |
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| 77 | !! F. Van Der Leeden, Troise F. L., Todd D. K. : the water |
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| 78 | !! encyclopedia, second edition, lewis publishers. |
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| 79 | !! J. W. Weatherly, J. E. Walsh : The effects of precipitation |
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| 80 | !! and river runoff in a coupled ice-ocean model of Arctic |
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| 81 | !! Climate dynamics 1996 12:785,798 |
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| 82 | !! Jacobs et al. 1992. J. Glaciol. 38 (130) 375-387. |
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| 83 | !! |
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| 84 | !! History : |
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| 85 | !! ! 94-10 (G.Madec, M. Pontaud, M. Imbard) Original code |
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| 86 | !! ! 97-03 (G.Madec) time dependent version |
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| 87 | !! ! 98-06 (J.M. Molines) exact computation of zxy |
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| 88 | !! for months that are not 30 days |
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| 89 | !! ! 98-07 (M. Imbard) ORCA and mpp option |
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| 90 | !! ! 99-08 (J.P. Boulanger H.L.Ayina) New rivers and |
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| 91 | !! values given in m3/s |
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| 92 | !! ! 00-04 (G. Madec, K. Roberts) add antarctica ice discharge. |
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| 93 | !! ! 00-11 (R. Hordoir, E. Durand) NetCDF FORMAT |
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| 94 | !! 8.5 ! 02-09 (G. Madec) F90: Free form and module |
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| 95 | !!---------------------------------------------------------------------- |
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| 96 | !! * arguments |
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| 97 | INTEGER, INTENT( in ) :: kt ! ocean time step |
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| 98 | |
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| 99 | !! * Local declarations |
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| 100 | # if ! defined key_coupled |
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[156] | 101 | INTEGER :: ji, jj ! dummy loop indices |
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[3] | 102 | INTEGER :: & |
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| 103 | i15 , imois , iman, & ! temporary integers |
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| 104 | idbd, idmeom ! " " |
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| 105 | REAL(wp) :: zxy |
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| 106 | # endif |
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[18] | 107 | INTEGER :: ii0, ii1, ij0, ij1 ! " " |
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[3] | 108 | !!---------------------------------------------------------------------- |
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| 109 | |
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| 110 | IF( kt == nit000 ) THEN |
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| 111 | |
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| 112 | SELECT CASE ( nrunoff ) |
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| 113 | |
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| 114 | CASE ( 0 ) |
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| 115 | IF(lwp) WRITE(numout,*) |
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| 116 | IF(lwp) WRITE(numout,*) 'flx_rnf : No runoff in this simulation (nrunoff=0)' |
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| 117 | IF(lwp) WRITE(numout,*) '~~~~~~~' |
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| 118 | |
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| 119 | CASE ( 1 ) |
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| 120 | IF(lwp) WRITE(numout,*) |
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[114] | 121 | IF(lwp) WRITE(numout,*) 'flx_rnf : monthly runoff (nrunoff=1)' |
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[3] | 122 | IF(lwp) WRITE(numout,*) '~~~~~~~' |
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| 123 | |
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| 124 | CASE ( 2 ) |
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| 125 | IF(lwp) WRITE(numout,*) |
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| 126 | IF(lwp) WRITE(numout,*) 'flx_rnf : monthly runoff with upsteam advection' |
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| 127 | IF(lwp) WRITE(numout,*) '~~~~~~~ in the vicinity of river mouths (nrunoff=2)' |
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| 128 | |
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| 129 | CASE DEFAULT |
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[473] | 130 | WRITE(ctmp1,*) ' Error nrunoff = ', nrunoff, ' /= 0, 1 or 2' |
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| 131 | CALL ctl_stop( ctmp1 ) |
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[3] | 132 | |
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| 133 | END SELECT |
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| 134 | |
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| 135 | ! Set runoffs and upstream coeff to zero |
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| 136 | upsadv (:,:) = 0.e0 |
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| 137 | |
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| 138 | ENDIF |
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| 139 | |
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| 140 | |
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| 141 | ! 1. Initialization |
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| 142 | ! ----------------- |
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| 143 | |
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| 144 | IF( nrunoff == 1 .OR. nrunoff == 2 ) THEN |
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| 145 | # if ! defined key_coupled |
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| 146 | |
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| 147 | ! year, month, day |
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[473] | 148 | iman = INT( raamo ) |
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| 149 | !!! better but change the results i15 = INT( 2*FLOAT( nday ) / ( FLOAT( nobis(nmonth) ) + 0.5 ) ) |
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[3] | 150 | i15 = nday / 16 |
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| 151 | imois = nmonth + i15 - 1 |
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[473] | 152 | IF( imois == 0 ) imois = iman |
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[3] | 153 | ! Number of days in the month |
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| 154 | IF( nleapy == 1 .AND. MOD( nyear, 4 ) == 0 ) THEN |
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| 155 | idbd = nbiss(imois) |
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| 156 | ELSEIF( nleapy > 1 ) THEN |
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| 157 | idbd = nleapy |
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| 158 | ELSE |
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| 159 | idbd = nobis(imois) |
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| 160 | ENDIF |
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| 161 | ! Number of days between imois, 15 and the end of month |
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| 162 | idmeom = idbd - 15 |
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| 163 | # endif |
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| 164 | |
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| 165 | ! Open file |
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| 166 | |
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| 167 | IF( kt == nit000 ) THEN |
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[473] | 168 | |
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| 169 | nrnf1 = 0 ! initialization |
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| 170 | IF (lwp) WRITE(numout,*) 'flx_rnf : Monthly runoff' |
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| 171 | CALL iom_open ( 'runoff_1m_nomask.nc', numrnf ) |
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| 172 | |
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[3] | 173 | ENDIF |
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| 174 | |
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| 175 | # if ! defined key_coupled |
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| 176 | |
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| 177 | ! 2. Read monthly file of runoff |
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| 178 | ! ------------------------------ |
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| 179 | |
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| 180 | IF( kt == nit000 .OR. imois /= nrnf1 ) THEN |
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| 181 | |
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| 182 | ! Calendar computation for interpolation |
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| 183 | ! nrnf1 number of the first array record used in the simulation |
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| 184 | ! nrnf2 number of the last array record |
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| 185 | |
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| 186 | nrnf1 = imois |
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| 187 | nrnf2 = nrnf1 + 1 |
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| 188 | nrnf1 = MOD( nrnf1, iman ) |
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| 189 | IF( nrnf1 == 0 ) nrnf1 = iman |
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| 190 | nrnf2 = MOD( nrnf2, iman ) |
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| 191 | IF( nrnf2 == 0 ) nrnf2 = iman |
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| 192 | |
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| 193 | IF(lwp) THEN |
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| 194 | WRITE(numout,*) |
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| 195 | WRITE(numout,*) ' runoff monthly field' |
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| 196 | WRITE(numout,*) ' --------------------' |
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| 197 | WRITE(numout,*) ' NetCDF format' |
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| 198 | WRITE(numout,*) |
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[473] | 199 | WRITE(numout,*) 'first array record used nrnf1 ', nrnf1 |
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| 200 | WRITE(numout,*) 'last array record used nrnf2 ', nrnf2 |
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[3] | 201 | WRITE(numout,*) |
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| 202 | ENDIF |
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| 203 | |
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| 204 | ! Read monthly runoff data in kg/m2/s |
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| 205 | |
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[473] | 206 | CALL iom_get ( numrnf, jpdom_data, 'sorunoff', rnfdta(:,:,1), nrnf1 ) |
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| 207 | CALL iom_get ( numrnf, jpdom_data, 'sorunoff', rnfdta(:,:,2), nrnf2 ) |
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[3] | 208 | |
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| 209 | ENDIF |
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| 210 | |
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| 211 | ! Linear interpolation and conversion in upward water flux |
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| 212 | ! C a u t i o n : runoff is negative and in kg/m2/s |
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| 213 | |
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| 214 | zxy = FLOAT( nday + idmeom - idbd * i15 ) / idbd |
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| 215 | |
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[73] | 216 | runoff(:,:) = -( ( 1.e0 - zxy ) * rnfdta(:,:,1) + zxy * rnfdta(:,:,2) ) |
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[3] | 217 | |
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[287] | 218 | ! Runoff reduction only associated to the ORCA2_LIM configuration |
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| 219 | ! when reading the NetCDF file runoff_1m_nomask.nc |
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| 220 | IF( cp_cfg == 'orca' .AND. jp_cfg == 2 ) THEN |
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[473] | 221 | DO jj = 1, jpj |
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| 222 | DO ji = 1, jpi |
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| 223 | IF( gphit(ji,jj) > 40 .AND. gphit(ji,jj) < 65 ) runoff(ji,jj) = 0.85 * runoff(ji,jj) |
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| 224 | END DO |
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[3] | 225 | END DO |
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[287] | 226 | ENDIF |
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[3] | 227 | |
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| 228 | # endif |
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| 229 | |
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| 230 | ENDIF |
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| 231 | |
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| 232 | |
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| 233 | ! 3. Mixed advection scheme |
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| 234 | ! ------------------------- |
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| 235 | |
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| 236 | IF( nrunoff == 2 .AND. kt == nit000 ) THEN |
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| 237 | |
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| 238 | ! Upstream and centered scheme in the vicinity of river mouths |
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| 239 | |
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| 240 | ! Creates the array coef that contains the coefficient to affect to |
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| 241 | ! the upstream scheme. advection scheme will be: |
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| 242 | ! coefr * upstream + (1- coefr) centered |
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| 243 | ! coefr must be between 0 and 1. |
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| 244 | |
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[473] | 245 | CALL iom_get ( numrnf, jpdom_data, 'socoefr', upsrnfh ) |
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[3] | 246 | |
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| 247 | upsrnfz(:) = 0.e0 |
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| 248 | upsrnfz(1) = 1.0 |
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| 249 | upsrnfz(2) = 1.0 |
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| 250 | upsrnfz(3) = 0.5 |
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| 251 | upsrnfz(4) = 0.25 |
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| 252 | upsrnfz(5) = 0.125 |
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| 253 | |
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| 254 | IF( cp_cfg == "orca" .AND. jp_cfg == 2 ) THEN |
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[18] | 255 | ! ORCA_R2 configuration : upstream scheme in the Sound Strait |
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| 256 | ij0 = 116 ; ij1 = 116 |
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| 257 | ii0 = 144 ; ii1 = 144 ; upsrnfh( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.25 |
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| 258 | ii0 = 145 ; ii1 = 147 ; upsrnfh( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.50 |
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| 259 | ii0 = 148 ; ii1 = 148 ; upsrnfh( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.25 |
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[3] | 260 | ENDIF |
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| 261 | |
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| 262 | ENDIF |
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| 263 | |
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| 264 | ! Upstream and centered scheme in the vicinity of some straits |
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| 265 | |
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| 266 | IF( kt == nit000 ) THEN |
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| 267 | |
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| 268 | IF( cp_cfg == "orca" ) THEN |
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| 269 | |
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| 270 | SELECT CASE ( jp_cfg ) |
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| 271 | ! ! ======================= |
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| 272 | CASE ( 4 ) ! ORCA_R4 configuration |
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| 273 | ! ! ======================= |
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| 274 | |
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[18] | 275 | ! ! Gibraltar Strait |
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| 276 | ii0 = 70 ; ii1 = 71 |
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| 277 | ij0 = 52 ; ij1 = 53 ; upsadv( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.50 |
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[3] | 278 | |
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| 279 | ! ! ======================= |
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| 280 | CASE ( 2 ) ! ORCA_R2 configuration |
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| 281 | ! ! ======================= |
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| 282 | |
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| 283 | ! ! Gibraltar Strait |
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[18] | 284 | ij0 = 102 ; ij1 = 102 |
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| 285 | ii0 = 138 ; ii1 = 138 ; upsadv( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.20 |
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| 286 | ii0 = 139 ; ii1 = 139 ; upsadv( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.40 |
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| 287 | ii0 = 140 ; ii1 = 140 ; upsadv( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.50 |
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| 288 | ij0 = 101 ; ij1 = 102 |
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| 289 | ii0 = 141 ; ii1 = 141 ; upsadv( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.50 |
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[3] | 290 | |
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| 291 | ! ! Bab el Mandeb Strait |
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[18] | 292 | ij0 = 87 ; ij1 = 88 |
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| 293 | ii0 = 164 ; ii1 = 164 ; upsadv( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.10 |
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| 294 | ij0 = 88 ; ij1 = 88 |
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| 295 | ii0 = 163 ; ii1 = 163 ; upsadv( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.25 |
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| 296 | ii0 = 162 ; ii1 = 162 ; upsadv( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.40 |
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| 297 | ii0 = 160 ; ii1 = 161 ; upsadv( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.50 |
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| 298 | ij0 = 89 ; ij1 = 89 |
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| 299 | ii0 = 158 ; ii1 = 160 ; upsadv( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.25 |
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| 300 | ij0 = 90 ; ij1 = 90 |
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| 301 | ii0 = 160 ; ii1 = 160 ; upsadv( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.25 |
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[3] | 302 | |
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| 303 | ! ! Sound Strait |
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[18] | 304 | ij0 = 116 ; ij1 = 116 |
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| 305 | ii0 = 145 ; ii1 = 147 ; upsadv( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.50 |
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[3] | 306 | |
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| 307 | END SELECT |
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| 308 | |
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| 309 | ENDIF |
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| 310 | |
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| 311 | ENDIF |
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| 312 | |
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| 313 | ! 4. Closing all files |
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| 314 | ! -------------------- |
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| 315 | |
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[473] | 316 | IF( kt == nitend .AND. nrunoff >= 1 ) CALL iom_close( numrnf ) |
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[3] | 317 | |
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| 318 | END SUBROUTINE flx_rnf |
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| 319 | |
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| 320 | #endif |
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| 321 | !!====================================================================== |
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| 322 | END MODULE flxrnf |
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