| 1 | subroutine calcenergy_kcm(nlayer,Tsurf,T,Play,Plev,Qsurf,Q,muvar,Eatmtot) |
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| 2 | |
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| 3 | |
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| 4 | use params_h, only : Rc |
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| 5 | use watercommon_h, only : mH2O |
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| 6 | implicit none |
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| 7 | |
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| 8 | ! ---------------------------------------------------------------- |
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| 9 | ! Purpose: Calculate total energy of the (steam) atmosphere |
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| 10 | ! Authour: R. Wordsworth (2011) |
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| 11 | ! ---------------------------------------------------------------- |
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| 12 | |
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| 13 | !#include "dimensions.h" |
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| 14 | !#include "dimphys.h" |
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| 15 | #include "comcstfi.h" |
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| 16 | !#include "callkeys.h" |
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| 17 | |
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| 18 | |
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| 19 | |
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| 20 | ! inputs |
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| 21 | integer,intent(in) :: nlayer |
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| 22 | real Tsurf,T(1:nlayer) |
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| 23 | real Play(1:nlayer),Plev(1:nlayer+1) |
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| 24 | real Qsurf,Q(1:nlayer) |
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| 25 | real muvar(1,nlayer+1) |
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| 26 | |
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| 27 | ! internal |
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| 28 | integer il |
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| 29 | real m_n,m_v,cp_n,cp_v,cp_a,Eatmlay |
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| 30 | real s_c,rho_v,L |
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| 31 | double precision p_v, s_v, nul |
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| 32 | real VMR(1:nlayer) |
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| 33 | |
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| 34 | ! output |
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| 35 | real Eatmtot |
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| 36 | |
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| 37 | ! functions |
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| 38 | double precision cp_neutral |
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| 39 | |
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| 40 | m_n = mugaz/1000. |
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| 41 | m_v = mH2O/1000. |
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| 42 | |
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| 43 | |
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| 44 | do il=1,nlayer |
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| 45 | VMR(il)=Q(il)*(muvar(1,il+1)/mH2O) |
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| 46 | end do |
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| 47 | |
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| 48 | |
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| 49 | Eatmtot = 0.0 |
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| 50 | do il=1,nlayer |
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| 51 | |
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| 52 | |
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| 53 | cp_n = cp_neutral(dble(T(il))) |
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| 54 | cp_v = (32.24+1.923d-3*T(il) + 1.055d-5*T(il)**2-3.511d-9*T(il)**3)/m_v |
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| 55 | ! / by m_v makes it per kg not per mol |
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| 56 | |
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| 57 | call psat_H2O(dble(T(il)),p_v) |
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| 58 | p_v = p_v*1d6 |
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| 59 | rho_v = real(p_v)*m_v/(real(Rc)*T(il)) |
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| 60 | |
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| 61 | call therm(dble(T(il)),dble(rho_v)*1d-3,nul,nul,nul,nul,nul,nul,nul,& |
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| 62 | nul,nul,nul,s_v,nul) |
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| 63 | |
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| 64 | s_c = 2.06 * log(T(il)/273.15) |
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| 65 | s_v = s_v * 1d3 |
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| 66 | s_c = s_c * 1d3 |
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| 67 | L = (real(s_v)-s_c)*T(il) |
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| 68 | |
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| 69 | cp_a = (1-VMR(il))*cp_n + VMR(il)*cp_v |
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| 70 | !cp_a = (1-Q(il))*cp_n + Q(il)*cp_v |
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| 71 | |
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| 72 | Eatmlay = ( cp_a*T(il) + L*VMR(il) ) * (Plev(il)-Plev(il+1))/g |
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| 73 | |
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| 74 | Eatmtot = Eatmtot + Eatmlay |
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| 75 | enddo |
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| 76 | |
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| 77 | print*,'WARNING: E-calc currently assumes H2O saturation!' |
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| 78 | |
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| 79 | end subroutine calcenergy_kcm |
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| 80 | |
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