1 | !********************************************************************** |
---|
2 | ! Copyright 1998,1999,2000,2001,2002,2005,2007,2008,2009,2010 * |
---|
3 | ! Andreas Stohl, Petra Seibert, A. Frank, Gerhard Wotawa, * |
---|
4 | ! Caroline Forster, Sabine Eckhardt, John Burkhart, Harald Sodemann * |
---|
5 | ! * |
---|
6 | ! This file is part of FLEXPART. * |
---|
7 | ! * |
---|
8 | ! FLEXPART is free software: you can redistribute it and/or modify * |
---|
9 | ! it under the terms of the GNU General Public License as published by* |
---|
10 | ! the Free Software Foundation, either version 3 of the License, or * |
---|
11 | ! (at your option) any later version. * |
---|
12 | ! * |
---|
13 | ! FLEXPART is distributed in the hope that it will be useful, * |
---|
14 | ! but WITHOUT ANY WARRANTY; without even the implied warranty of * |
---|
15 | ! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
---|
16 | ! GNU General Public License for more details. * |
---|
17 | ! * |
---|
18 | ! You should have received a copy of the GNU General Public License * |
---|
19 | ! along with FLEXPART. If not, see <http://www.gnu.org/licenses/>. * |
---|
20 | !********************************************************************** |
---|
21 | |
---|
22 | subroutine calcmatrix(lconv,delt,cbmf,id_centre) |
---|
23 | ! o i o |
---|
24 | !***************************************************************************** |
---|
25 | ! * |
---|
26 | ! This subroutine calculates the matrix describing convective * |
---|
27 | ! redistribution of mass in a grid column, using the subroutine * |
---|
28 | ! convect43c.f provided by Kerry Emanuel. * |
---|
29 | ! * |
---|
30 | ! Petra Seibert, Bernd C. Krueger, 2000-2001 * |
---|
31 | ! * |
---|
32 | !***************************************************************************** |
---|
33 | ! Changes: * |
---|
34 | ! changed by C. Forster, November 2003 - February 2004 * |
---|
35 | ! array fmassfrac(nconvlevmax,nconvlevmax) represents * |
---|
36 | ! the convective redistribution matrix for the particles * |
---|
37 | ! * |
---|
38 | ! Unified ECMWF and GFS builds * |
---|
39 | ! Marian Harustak, 12.5.2017 * |
---|
40 | ! - Merged calcmatrix and calcmatrix_gfs into one routine using if-then * |
---|
41 | ! for meteo-type dependent code * |
---|
42 | ! * |
---|
43 | ! Petra Seibert, 2018-06-26: simplified version met data format detection * |
---|
44 | ! * |
---|
45 | !***************************************************************************** |
---|
46 | ! * |
---|
47 | ! lconv indicates whether there is convection in this cell, or not * |
---|
48 | ! delt time step for convection [s] * |
---|
49 | ! cbmf cloud base mass flux * |
---|
50 | ! id_centre format of metdata (ecmwf/gfs) * |
---|
51 | ! * |
---|
52 | !***************************************************************************** |
---|
53 | |
---|
54 | use par_mod |
---|
55 | use com_mod |
---|
56 | use conv_mod |
---|
57 | use check_gribfile_mod |
---|
58 | |
---|
59 | implicit none |
---|
60 | |
---|
61 | real :: rlevmass,summe |
---|
62 | integer :: id_centre |
---|
63 | |
---|
64 | integer :: iflag, k, kk, kuvz |
---|
65 | |
---|
66 | !1-d variables for convection |
---|
67 | !variables for redistribution matrix |
---|
68 | real :: cbmfold, precip, qprime |
---|
69 | real :: tprime, wd, f_qvsat |
---|
70 | real :: delt,cbmf |
---|
71 | logical :: lconv |
---|
72 | |
---|
73 | lconv = .false. |
---|
74 | |
---|
75 | |
---|
76 | ! calculate pressure at eta levels for use in convect |
---|
77 | ! and assign temp & spec. hum. to 1D workspace |
---|
78 | ! ------------------------------------------------------- |
---|
79 | |
---|
80 | ! pconv(1) is the pressure at the first level above ground |
---|
81 | ! phconv(k) is the pressure between levels k-1 and k |
---|
82 | ! dpr(k) is the pressure difference "around" tconv(k) |
---|
83 | ! phconv(kmax) must also be defined 1/2 level above pconv(kmax) |
---|
84 | ! Therefore, we define k = kuvz-1 and let kuvz start from 2 |
---|
85 | ! top layer cannot be used for convection because p at top of this layer is |
---|
86 | ! not given |
---|
87 | |
---|
88 | |
---|
89 | phconv(1) = psconv |
---|
90 | ! Emanuel subroutine needs pressure in hPa, therefore convert all pressures |
---|
91 | do kuvz = 2,nuvz |
---|
92 | k = kuvz-1 |
---|
93 | if (id_centre.eq.icg_id_ecmwf) then |
---|
94 | pconv(k) = (akz(kuvz) + bkz(kuvz)*psconv) |
---|
95 | phconv(kuvz) = (akm(kuvz) + bkm(kuvz)*psconv) |
---|
96 | else |
---|
97 | phconv(kuvz) = 0.5*(pconv(kuvz)+pconv(k)) |
---|
98 | endif |
---|
99 | dpr(k) = phconv(k) - phconv(kuvz) |
---|
100 | qsconv(k) = f_qvsat( pconv(k), tconv(k) ) |
---|
101 | |
---|
102 | ! initialize mass fractions |
---|
103 | do kk=1,nconvlev |
---|
104 | fmassfrac(k,kk)=0. |
---|
105 | end do |
---|
106 | end do |
---|
107 | |
---|
108 | |
---|
109 | !note that Emanuel says it is important |
---|
110 | !a. to set this =0. every grid point |
---|
111 | !b. to keep this value in the calling programme in the iteration |
---|
112 | |
---|
113 | ! CALL CONVECTION |
---|
114 | !****************** |
---|
115 | |
---|
116 | cbmfold = cbmf |
---|
117 | ! Convert pressures to hPa, as required by Emanuel scheme |
---|
118 | !******************************************************** |
---|
119 | !!$ do k=1,nconvlev !old |
---|
120 | do k=1,nconvlev+1 !bugfix |
---|
121 | pconv_hpa(k)=pconv(k)/100. |
---|
122 | phconv_hpa(k)=phconv(k)/100. |
---|
123 | end do |
---|
124 | phconv_hpa(nconvlev+1)=phconv(nconvlev+1)/100. |
---|
125 | call convect(nconvlevmax, nconvlev, delt, iflag, & |
---|
126 | precip, wd, tprime, qprime, cbmf) |
---|
127 | |
---|
128 | ! do not update fmassfrac and cloudbase massflux |
---|
129 | ! if no convection takes place or |
---|
130 | ! if a CFL criterion is violated in convect43c.f |
---|
131 | if (iflag .ne. 1 .and. iflag .ne. 4) then |
---|
132 | cbmf=cbmfold |
---|
133 | goto 200 |
---|
134 | endif |
---|
135 | |
---|
136 | ! do not update fmassfrac and cloudbase massflux |
---|
137 | ! if the old and the new cloud base mass |
---|
138 | ! fluxes are zero |
---|
139 | if (cbmf.le.0..and.cbmfold.le.0.) then |
---|
140 | cbmf=cbmfold |
---|
141 | goto 200 |
---|
142 | endif |
---|
143 | |
---|
144 | ! Update fmassfrac |
---|
145 | ! account for mass displaced from level k to level k |
---|
146 | |
---|
147 | lconv = .true. |
---|
148 | do k=1,nconvtop |
---|
149 | rlevmass = dpr(k)/ga |
---|
150 | summe = 0. |
---|
151 | do kk=1,nconvtop |
---|
152 | fmassfrac(k,kk) = delt*fmass(k,kk) |
---|
153 | summe = summe + fmassfrac(k,kk) |
---|
154 | end do |
---|
155 | fmassfrac(k,k)=fmassfrac(k,k) + rlevmass - summe |
---|
156 | end do |
---|
157 | |
---|
158 | 200 continue |
---|
159 | |
---|
160 | end subroutine calcmatrix |
---|