| [2657] | 1 | !> @file chem_photolysis_mod.f90 |
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| 2 | !------------------------------------------------------------------------------! |
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| [2696] | 3 | ! This file is part of the PALM model system. |
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| [2657] | 4 | ! |
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| 5 | ! PALM is free software: you can redistribute it and/or modify it under the |
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| 6 | ! terms of the GNU General Public License as published by the Free Software |
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| 7 | ! Foundation, either version 3 of the License, or (at your option) any later |
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| 8 | ! version. |
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| 9 | ! |
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| 10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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| 11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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| 12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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| 13 | ! |
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| 14 | ! You should have received a copy of the GNU General Public License along with |
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| 15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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| 16 | ! |
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| 17 | ! Copyright 1997-2017 Leibniz Universitaet Hannover |
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| [2696] | 18 | ! Copyright 2017-2017 Karlsruhe Institute of Technology |
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| [2657] | 19 | !------------------------------------------------------------------------------! |
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| 20 | ! |
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| 21 | ! Current revisions: |
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| 22 | ! ----------------- |
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| 23 | ! |
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| [2696] | 24 | ! |
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| [2657] | 25 | ! Former revisions: |
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| [2696] | 26 | ! ----------------- |
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| 27 | ! $Id: chem_photolysis_mod.f90 2696 2017-12-14 17:12:51Z maronga $ |
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| 28 | ! Initial revision |
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| 29 | ! |
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| [2678] | 30 | ! |
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| [2657] | 31 | ! |
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| 32 | ! |
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| 33 | ! Authors: |
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| [2696] | 34 | ! -------- |
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| [2657] | 35 | ! @author Renate Forkel |
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| 36 | ! |
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| [2696] | 37 | ! |
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| [2657] | 38 | !------------------------------------------------------------------------------! |
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| 39 | ! Description: |
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| 40 | ! ------------ |
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| 41 | !> photolysis models and interfaces (Adapted from photolysis_model_mod.f90) |
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| 42 | !> @todo Alles! |
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| 43 | !------------------------------------------------------------------------------! |
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| 44 | MODULE chem_photolysis_mod |
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| [2668] | 45 | #if defined( __chem ) |
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| [2657] | 46 | USE arrays_3d, & |
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| 47 | ONLY: dzw, hyp, pt, q, ql, zu, zw |
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| 48 | |
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| 49 | USE constants, & |
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| 50 | ONLY: pi |
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| 51 | |
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| 52 | USE control_parameters, & |
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| 53 | ONLY: time_since_reference_point |
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| 54 | |
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| 55 | USE pegrid, ONLY: myid, threads_per_task |
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| 56 | |
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| 57 | USE indices, & |
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| 58 | ONLY: nxl, nxlg, nxr, nxrg, nyn, nyng, nys, nysg, nzb, nzt |
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| 59 | |
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| 60 | USE radiation_model_mod, & |
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| 61 | ONLY: calc_zenith, zenith |
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| 62 | !day, day_init, lat, lambda, lon, & |
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| 63 | !time_utc, time_utc_init, !FKa: This is now handled by date_and_time_mod |
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| 64 | |
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| 65 | USE control_parameters, & |
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| 66 | ONLY: initializing_actions |
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| 67 | ! ONLY: cloud_droplets, cloud_physics, g, initializing_actions, & |
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| 68 | ! large_scale_forcing, lsf_surf, phi, pt_surface, rho_surface, & |
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| 69 | ! surface_pressure, time_since_reference_point |
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| 70 | |
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| 71 | USE chem_gasphase_mod, & |
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| 72 | ONLY: nphot, phot_names, phot |
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| 73 | |
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| 74 | USE chemistry_model_mod, & |
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| 75 | ONLY: phot_frequen, photolysis_scheme |
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| 76 | |
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| 77 | USE chem_modules, & |
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| 78 | ONLY: chem_debug2 |
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| 79 | |
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| 80 | ! REAL(wp), DIMENSION(0:0) :: zenith, & !< cosine of solar zenith angle |
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| 81 | ! sun_dir_lat, & !< solar directional vector in latitudes |
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| 82 | ! sun_dir_lon !< solar directional vector in longitudes |
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| 83 | USE kinds |
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| 84 | |
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| 85 | #if defined ( __netcdf ) |
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| 86 | USE NETCDF |
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| 87 | #endif |
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| 88 | |
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| 89 | |
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| 90 | IMPLICIT NONE |
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| 91 | |
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| 92 | |
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| 93 | ! LOGICAL :: unscheduled_photolysis_calls = .TRUE., & !< flag parameter indicating whether additional calls of the photolysis code are allowed |
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| 94 | ! constant_albedo = .FALSE., & !< flag parameter indicating whether the albedo may change depending on zenith |
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| 95 | ! force_photolysis_call = .FALSE., & !< flag parameter for unscheduled photolysis calls |
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| 96 | ! photolysis = .FALSE., & !< flag parameter indicating whether the photolysis model is used |
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| 97 | ! sun_up = .TRUE., & !< flag parameter indicating whether the sun is up or down |
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| 98 | ! photolysis = .TRUE., & !< flag parameter indicing whether photolysis shall be calculated |
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| 99 | ! sun_direction = .FALSE. !< flag parameter indicing whether solar direction shall be calculated |
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| 100 | |
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| 101 | !-- Parameters for constant photolysis frequencies |
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| 102 | INTEGER,PARAMETER :: nconst = 15 !< available predefined photolysis prequencies for constant |
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| 103 | |
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| 104 | ! Names for predefined fixed photolysis frequencies at zenith angle 0 |
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| 105 | CHARACTER(LEN=10), PARAMETER, DIMENSION(nconst) :: names_c = (/ & |
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| 106 | 'J_O31D ','J_O33P ','J_NO2 ','J_HNO3 ','J_RCHO ', & |
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| 107 | 'J ','J ','J ','J ','J ', & |
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| 108 | 'J ','J ','J ','J ','J ' /) |
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| 109 | ! Photolysis frequency at zenith angle 0 in 1/s |
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| 110 | REAL(wp), PARAMETER, DIMENSION(nconst) :: phot0 = (/ & |
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| 111 | 2.489E-05_wp,3.556E-04_wp, 8.89E-03_wp,5.334E-07_wp,3.734E-05_wp, & |
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| 112 | 0.0000E00_wp,0.0000E00_wp,0.0000E00_wp,0.0000E00_wp,0.0000E00_wp, & |
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| 113 | 0.0000E00_wp,0.0000E00_wp,0.0000E00_wp,0.0000E00_wp,0.0000E00_wp /) |
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| 114 | |
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| 115 | |
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| 116 | !-- Parameters for simple photolysis frequencies |
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| 117 | INTEGER,PARAMETER :: nsimple = 15 !< available predefined photolysis prequencies for simpel parameterisation |
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| 118 | ! Names for simple photolysis frequencies parameterisation ( |
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| 119 | CHARACTER(LEN=10), PARAMETER, DIMENSION(nsimple) :: names_s = (/ & |
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| 120 | 'J_O31D ','J_O33P ','J_H2O2 ','J_NO2 ','J_NO3_A ', & |
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| 121 | 'J_NO3_B ','J_HONO ','J_HNO3 ','J_HCHO_A ','J_HCHO_B ', & |
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| 122 | 'J_CH3CHO ','J ','J ','J ','J_RCHO ' /) |
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| 123 | |
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| 124 | !-- Parameters for simeple photolysis frequencies from MCM (http://mcm.leeds.ac.uk/MCM) |
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| 125 | !-- Saunders et al., 2003, Atmos. Chem. Phys., 3, 161-180 |
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| 126 | REAL(wp), PARAMETER, DIMENSION(nconst) :: par_l = (/ & |
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| 127 | 6.073E-05_wp,4.775E-04_wp,1.041E-05_wp,1.165E-02_wp,2.485E-02_wp, & |
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| 128 | 1.747E-01_wp,2.644E-03_wp,9.312E-07_wp,4.642E-05_wp,6.853E-05_wp, & |
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| 129 | 7.344E-06_wp,0.0000E00_wp,0.0000E00_wp,0.000E00_wp, 6.853E-05_wp /) |
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| 130 | |
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| 131 | REAL(wp), PARAMETER, DIMENSION(nconst) :: par_m = (/ & |
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| 132 | 1.743_wp, 0.298_wp, 0.723_wp, 0.244_wp, 0.168_wp, & |
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| 133 | 0.155_wp, 0.261_wp, 1.230_wp, 0.762_wp, 0.477_wp, & |
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| 134 | 1.202_wp, 0.000_wp, 0.000_wp, 0.000_wp, 0.477_wp /) |
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| 135 | |
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| 136 | REAL(wp), PARAMETER, DIMENSION(nconst) :: par_n = (/ & |
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| 137 | 0.474_wp, 0.080_wp, 0.279_wp, 0.267_wp, 0.108_wp, & |
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| 138 | 0.125_wp, 0.288_wp, 0.307_wp, 0.353_wp, 0.323_wp, & |
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| 139 | 0.417_wp, 0.000_wp, 0.000_wp, 0.000_wp, 0.323_wp /) |
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| 140 | |
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| 141 | |
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| 142 | REAL(wp) :: time_photolysis = 0.0_wp, & !< time since last call of photolysis code |
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| 143 | dt_photolysis = 0.0_wp, & !< hotolysis model timestep |
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| 144 | skip_time_do_photolysis = 0.0_wp !< Radiation model is not called before this time |
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| 145 | |
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| [2678] | 146 | REAL(wp) :: cosz = 0.7_wp !< cosine of Zenith angle (45 deg, if not specified otherwise) |
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| [2657] | 147 | |
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| 148 | ! |
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| 149 | !-- Variables and parameters used in Fast-J only |
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| 150 | ! .... |
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| 151 | |
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| 152 | ! INTERFACE photolysis_check_parameters |
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| 153 | ! MODULE PROCEDURE photolysis_check_parameters |
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| 154 | ! END INTERFACE photolysis_check_parameters |
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| 155 | |
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| 156 | INTERFACE photolysis_constant |
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| 157 | MODULE PROCEDURE photolysis_constant |
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| 158 | END INTERFACE photolysis_constant |
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| 159 | |
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| 160 | INTERFACE photolysis_simple |
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| 161 | MODULE PROCEDURE photolysis_simple |
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| 162 | END INTERFACE photolysis_simple |
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| 163 | ! |
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| 164 | ! INTERFACE photolysis_fastj |
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| 165 | ! MODULE PROCEDURE photolysis_fastj |
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| 166 | ! END INTERFACE photolysis_fastj |
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| 167 | ! |
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| 168 | INTERFACE photolysis_control |
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| 169 | MODULE PROCEDURE photolysis_control |
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| 170 | END INTERFACE photolysis_control |
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| 171 | |
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| 172 | ! INTERFACE photolysis_header |
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| 173 | ! MODULE PROCEDURE photolysis_header |
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| 174 | ! END INTERFACE photolysis_header |
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| 175 | ! |
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| 176 | INTERFACE photolysis_init |
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| 177 | MODULE PROCEDURE photolysis_init |
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| 178 | END INTERFACE photolysis_init |
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| 179 | |
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| 180 | ! INTERFACE photolysis_parin |
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| 181 | ! MODULE PROCEDURE photolysis_parin |
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| 182 | ! END INTERFACE photolysis_parin |
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| 183 | |
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| 184 | ! INTERFACE photolysis_read_restart_data |
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| 185 | ! MODULE PROCEDURE photolysis_read_restart_data |
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| 186 | ! END INTERFACE photolysis_read_restart_data |
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| 187 | |
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| 188 | ! INTERFACE photolysis_last_actions |
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| 189 | ! MODULE PROCEDURE photolysis_last_actions |
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| 190 | ! END INTERFACE photolysis_last_actions |
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| 191 | |
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| 192 | SAVE |
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| 193 | |
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| 194 | PRIVATE |
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| 195 | |
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| 196 | ! |
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| 197 | !-- Public functions / NEEDS SORTING |
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| 198 | ! PUBLIC photolysis_init |
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| 199 | ! photolysis_check_parameters, photolysis_control, & |
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| 200 | ! photolysis_header, photolysis_init, photolysis_parin !, & |
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| 201 | ! photolysis_define_netcdf_grid, photolysis_last_actions, & |
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| 202 | ! photolysis_read_restart_data, photolysis_data_output_mask |
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| 203 | |
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| 204 | PUBLIC photolysis_control, photolysis_init |
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| 205 | |
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| 206 | PUBLIC photolysis_scheme |
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| 207 | ! |
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| 208 | |
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| 209 | CONTAINS |
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| 210 | |
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| 211 | |
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| 212 | !------------------------------------------------------------------------------! |
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| 213 | ! Description: |
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| 214 | ! ------------ |
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| 215 | !> This subroutine controls the calls of the photolysis schemes |
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| 216 | !------------------------------------------------------------------------------! |
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| 217 | SUBROUTINE photolysis_control |
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| 218 | |
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| 219 | |
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| 220 | IMPLICIT NONE |
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| 221 | |
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| 222 | |
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| 223 | SELECT CASE ( TRIM( photolysis_scheme ) ) |
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| 224 | |
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| 225 | CASE ( 'constant' ) |
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| 226 | CALL photolysis_constant |
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| 227 | |
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| 228 | CASE ( 'simple' ) |
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| 229 | CALL photolysis_simple |
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| 230 | |
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| 231 | ! CASE ( 'fastj' ) |
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| 232 | ! CALL photolysis_fastj |
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| 233 | |
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| 234 | CASE DEFAULT |
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| 235 | |
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| 236 | END SELECT |
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| 237 | |
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| 238 | |
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| 239 | END SUBROUTINE photolysis_control |
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| 240 | |
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| 241 | !------------------------------------------------------------------------------! |
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| 242 | ! Description: |
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| 243 | ! ------------ |
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| 244 | !> Initialization of the photolysis model |
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| 245 | !------------------------------------------------------------------------------! |
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| 246 | SUBROUTINE photolysis_init !### not yes used. Call should be placed near call of chem_init |
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| 247 | |
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| 248 | IMPLICIT NONE |
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| 249 | |
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| 250 | !-- Just in case we need anything |
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| 251 | |
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| 252 | RETURN |
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| 253 | |
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| 254 | END SUBROUTINE photolysis_init |
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| 255 | |
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| 256 | |
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| 257 | !------------------------------------------------------------------------------! |
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| 258 | ! Description: |
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| 259 | ! ------------ |
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| 260 | !> This scheme keeps the prescribed net radiation constant during the run |
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| [2678] | 261 | !> Default zenith angle is 45 deg |
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| [2657] | 262 | !------------------------------------------------------------------------------! |
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| 263 | SUBROUTINE photolysis_constant |
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| 264 | |
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| 265 | |
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| 266 | IMPLICIT NONE |
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| 267 | |
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| 268 | ! INTEGER(iwp) :: i, j, k !< loop indices |
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| 269 | INTEGER(iwp) :: iphot,iav !< loop indix for photolysis reaction |
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| 270 | ! REAL(wp) :: exn, & !< Exner functions at surface |
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| 271 | ! pt1 !< potential temperature at first grid level |
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| 272 | |
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| 273 | DO iphot = 1,nphot |
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| 274 | DO iav = 1,nconst |
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| 275 | IF ( TRIM( names_c(iav) ) == TRIM( phot_names(iphot) ) ) then |
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| 276 | !-- Prescribe fixed photolysis frequencies [1/s] |
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| 277 | ! IF(myid == 0 .AND. chem_debug2 ) WRITE(06,*) iphot, iav,phot_names(iphot),names_c(iav) |
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| 278 | |
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| 279 | phot_frequen(iphot)%freq(nzb+1:nzt,:,:) = & |
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| 280 | phot0(iav) * cosz |
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| 281 | |
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| 282 | ! IF(myid == 0 .AND. chem_debug2 ) WRITE(06,*) phot_frequen(iphot)%freq(1,5,5) |
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| 283 | ENDIF |
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| 284 | ENDDO |
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| 285 | ENDDO |
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| 286 | |
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| 287 | END SUBROUTINE photolysis_constant |
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| 288 | |
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| [2678] | 289 | |
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| [2657] | 290 | !------------------------------------------------------------------------------! |
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| 291 | ! Description: |
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| 292 | ! ------------ |
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| 293 | !> This scheme applies a simple parameterisation for clear sky photolysis frequencies |
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| 294 | !> from the Master Chemical Mechanism, MCM v3.2 (http://mcm.leeds.ac.uk/MCM). |
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| 295 | !> Reference: Saunders et al., Atmos. Chem. Phys., 3, 161, 2003 |
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| 296 | !------------------------------------------------------------------------------! |
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| 297 | SUBROUTINE photolysis_simple |
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| 298 | |
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| 299 | IMPLICIT NONE |
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| 300 | |
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| 301 | ! INTEGER(iwp) :: i, j, k !< loop indices |
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| 302 | INTEGER(iwp) :: iphot,iav !< loop indix for photolysis reaction |
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| 303 | ! REAL(wp) :: exn, & !< Exner functions at surface |
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| 304 | ! pt1 !< potential temperature at first grid level |
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| 305 | REAL(wp) :: coszi !< 1./cosine of zenith angle |
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| 306 | |
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| [2678] | 307 | DO iphot = 1,nphot |
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| 308 | phot_frequen(iphot)%freq = 0.0_wp |
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| 309 | ENDDO |
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| [2657] | 310 | |
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| [2678] | 311 | CALL calc_zenith |
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| 312 | |
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| 313 | IF ( zenith(0) > 0.0_wp ) THEN |
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| 314 | coszi = 1. / zenith(0) |
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| 315 | |
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| [2657] | 316 | DO iphot = 1,nphot |
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| 317 | DO iav = 1,nsimple |
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| 318 | IF ( TRIM( names_s(iav) ) == TRIM( phot_names(iphot) ) ) then |
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| 319 | ! if(myid == 0 .AND. chem_debug2 ) WRITE(06,*) 'simple', iphot, iav,phot_names(iphot),names_s(iav) |
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| 320 | |
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| 321 | phot_frequen(iphot)%freq(nzb+1:nzt,:,:) = & |
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| [2678] | 322 | par_l(iav) * zenith(0)**par_m(iav) * EXP( -par_n(iav) * coszi ) |
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| [2657] | 323 | |
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| 324 | ! if(myid == 0 .AND. chem_debug2 ) WRITE(06,*) 'simple', phot_frequen(iphot)%freq(1,5,5) |
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| 325 | ENDIF |
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| 326 | ENDDO |
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| 327 | ENDDO |
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| [2678] | 328 | ENDIF |
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| [2657] | 329 | |
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| 330 | END SUBROUTINE photolysis_simple |
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| [2668] | 331 | #endif |
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| [2657] | 332 | END MODULE chem_photolysis_mod |
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