[e200b7a] | 1 | !********************************************************************** |
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| 2 | ! Copyright 1998,1999,2000,2001,2002,2005,2007,2008,2009,2010 * |
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| 3 | ! Andreas Stohl, Petra Seibert, A. Frank, Gerhard Wotawa, * |
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| 4 | ! Caroline Forster, Sabine Eckhardt, John Burkhart, Harald Sodemann * |
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| 5 | ! * |
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| 6 | ! This file is part of FLEXPART. * |
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| 7 | ! * |
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| 8 | ! FLEXPART is free software: you can redistribute it and/or modify * |
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| 9 | ! it under the terms of the GNU General Public License as published by* |
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| 10 | ! the Free Software Foundation, either version 3 of the License, or * |
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| 11 | ! (at your option) any later version. * |
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| 12 | ! * |
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| 13 | ! FLEXPART is distributed in the hope that it will be useful, * |
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| 14 | ! but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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| 15 | ! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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| 16 | ! GNU General Public License for more details. * |
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| 17 | ! * |
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| 18 | ! You should have received a copy of the GNU General Public License * |
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| 19 | ! along with FLEXPART. If not, see <http://www.gnu.org/licenses/>. * |
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| 20 | !********************************************************************** |
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| 21 | |
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| 22 | subroutine getrb(nc,ustar,nyl,diffh2o,reldiff,rb) |
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| 23 | ! i i i i i o |
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| 24 | !***************************************************************************** |
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| 25 | ! * |
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| 26 | ! Calculation of the quasilaminar sublayer resistance to dry deposition. * |
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| 27 | ! * |
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| 28 | ! AUTHOR: Andreas Stohl, 20 May 1995 * |
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| 29 | ! * |
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| 30 | !***************************************************************************** |
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| 31 | ! * |
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| 32 | ! Variables: * |
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| 33 | ! rb(ncmax) sublayer resistance * |
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| 34 | ! schmidt Schmidt number * |
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| 35 | ! ustar [m/s] friction velocity * |
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| 36 | ! diffh20 [m2/s] diffusivity of water vapor in air * |
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| 37 | ! reldiff diffusivity relative to H2O * |
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| 38 | ! * |
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| 39 | ! Constants: * |
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| 40 | ! karman von Karman constant * |
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| 41 | ! pr Prandtl number * |
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| 42 | ! * |
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| 43 | !***************************************************************************** |
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| 44 | |
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| 45 | use par_mod |
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| 46 | |
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| 47 | implicit none |
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| 48 | |
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| 49 | real :: ustar,diffh2o,rb(maxspec),schmidt,nyl |
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| 50 | real :: reldiff(maxspec) |
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| 51 | integer :: ic,nc |
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| 52 | real,parameter :: pr=0.72 |
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| 53 | |
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| 54 | do ic=1,nc |
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| 55 | if (reldiff(ic).gt.0.) then |
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| 56 | schmidt=nyl/diffh2o*reldiff(ic) |
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| 57 | rb(ic)=2.0*(schmidt/pr)**0.67/(karman*ustar) |
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| 58 | endif |
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| 59 | end do |
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| 60 | |
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| 61 | end subroutine getrb |
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