10.4.1_peseiGFS_025bugfixes+enhancementsdevrelease-10release-10.4.1scaling-bug
Last change
on this file since 5635973 was
92fab65,
checked in by Ignacio Pisso <ip@…>, 5 years ago
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add SPDX-License-Identifier to all .f90 files
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Property mode set to
100644
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File size:
1.9 KB
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1 | ! SPDX-FileCopyrightText: FLEXPART 1998-2019, see flexpart_license.txt |
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2 | ! SPDX-License-Identifier: GPL-3.0-or-later |
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3 | |
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4 | real function scalev(ps,t,td,stress) |
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5 | |
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6 | !******************************************************************** |
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7 | ! * |
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8 | ! Author: G. WOTAWA * |
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9 | ! Date: 1994-06-27 * |
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10 | ! Update: 1996-05-21 A. Stohl * |
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11 | ! * |
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12 | !******************************************************************** |
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13 | ! * |
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14 | ! This Programm calculates scale velocity ustar from surface * |
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15 | ! stress and air density. * |
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16 | ! * |
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17 | !******************************************************************** |
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18 | ! * |
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19 | ! INPUT: * |
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20 | ! * |
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21 | ! ps surface pressure [Pa] * |
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22 | ! t surface temperature [K] * |
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23 | ! td surface dew point [K] * |
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24 | ! stress surface stress [N/m2] * |
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25 | ! * |
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26 | !******************************************************************** |
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27 | |
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28 | use par_mod |
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29 | |
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30 | implicit none |
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31 | |
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32 | real :: ps,t,td,e,ew,tv,rhoa,stress |
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33 | |
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34 | e=ew(td) ! vapor pressure |
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35 | tv=t*(1.+0.378*e/ps) ! virtual temperature |
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36 | rhoa=ps/(r_air*tv) ! air density |
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37 | scalev=sqrt(abs(stress)/rhoa) |
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38 | |
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39 | end function scalev |
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