| 1 | ! |
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| 2 | ! $Header$ |
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| 3 | ! |
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| 4 | ! ------------------------------------------------------------------ |
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| 5 | ! This COMDECK includes the Thermodynamical functions for the cy39 |
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| 6 | ! ECMWF Physics package. |
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| 7 | ! Consistent with YOMCST Basic physics constants, assuming the |
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| 8 | ! partial pressure of water vapour is given by a first order |
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| 9 | ! Taylor expansion of Qs(T) w.r.t. to Temperature, using constants |
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| 10 | ! in YOETHF |
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| 11 | ! ------------------------------------------------------------------ |
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| 12 | REAL PTARG, PDELARG, P5ARG, PQSARG, PCOARG |
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| 13 | REAL FOEEW, FOEDE, qsats, qsatl, dqsats, dqsatl |
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| 14 | LOGICAL thermcep |
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| 15 | PARAMETER (thermcep=.TRUE.) |
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| 16 | ! |
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| 17 | FOEEW ( PTARG,PDELARG ) = EXP ( & |
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| 18 | & (R3LES*(1.-PDELARG)+R3IES*PDELARG) * (PTARG-RTT) & |
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| 19 | & / (PTARG-(R4LES*(1.-PDELARG)+R4IES*PDELARG)) ) |
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| 20 | ! |
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| 21 | FOEDE ( PTARG,PDELARG,P5ARG,PQSARG,PCOARG ) = PQSARG*PCOARG*P5ARG & |
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| 22 | & / (PTARG-(R4LES*(1.-PDELARG)+R4IES*PDELARG))**2 |
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| 23 | ! |
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| 24 | qsats(ptarg) = 100.0 * 0.622 * 10.0 & |
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| 25 | & ** (2.07023 - 0.00320991 * ptarg & |
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| 26 | & - 2484.896 / ptarg + 3.56654 * LOG10(ptarg)) |
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| 27 | qsatl(ptarg) = 100.0 * 0.622 * 10.0 & |
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| 28 | & ** (23.8319 - 2948.964 / ptarg & |
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| 29 | & - 5.028 * LOG10(ptarg) & |
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| 30 | & - 29810.16 * EXP( - 0.0699382 * ptarg) & |
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| 31 | & + 25.21935 * EXP( - 2999.924 / ptarg)) |
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| 32 | ! |
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| 33 | dqsats(ptarg,pqsarg) = RLVTT/RCPD*pqsarg * (3.56654/ptarg & |
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| 34 | & +2484.896*LOG(10.)/ptarg**2 & |
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| 35 | & -0.00320991*LOG(10.)) |
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| 36 | dqsatl(ptarg,pqsarg) = RLVTT/RCPD*pqsarg*LOG(10.)* & |
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| 37 | & (2948.964/ptarg**2-5.028/LOG(10.)/ptarg & |
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| 38 | & +25.21935*2999.924/ptarg**2*EXP(-2999.924/ptarg) & |
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| 39 | & +29810.16*0.0699382*EXP(-0.0699382*ptarg)) |
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