#include atoms_red
#include ./mozart.spc
#include ./mozart.eqn




#INLINE F90_RATES

REAL(kind=dp) FUNCTION JPL_TROE( k0_300K, n, kinf_300K, m, base, temp, cair )

!------------------------------------------------------------
!	... dummy arguments
!------------------------------------------------------------
    REAL(kind=dp), INTENT(IN) :: base      ! base expononent
    REAL(kind=dp), INTENT(IN) :: temp      ! temperature [K]
    REAL(kind=dp), INTENT(IN) :: cair      ! air concentration [molecules/cm3]
    REAL(kind=dp), INTENT(IN) :: k0_300K   ! low pressure limit at 300 K
    REAL(kind=dp), INTENT(IN) :: n         ! exponent for low pressure limit
    REAL(kind=dp), INTENT(IN) :: kinf_300K ! high pressure limit at 300 K
    REAL(kind=dp), INTENT(IN) :: m         ! exponent for high pressure limit

!------------------------------------------------------------
!	... local variables
!------------------------------------------------------------
    REAL(kind=dp)  :: zt_help, k0_T, kinf_T, k_ratio

    zt_help = 300._dp/temp
    k0_T    = k0_300K   * zt_help**(n) * cair ! k_0   at current T
    kinf_T  = kinf_300K * zt_help**(m)        ! k_inf at current T
    k_ratio = k0_T/kinf_T

    JPL_TROE = k0_T/(1._dp + k_ratio)*base**(1._dp/(1._dp + LOG10(k_ratio)**2))

END FUNCTION JPL_TROE

REAL(KIND=dp) FUNCTION usr5( temp, c_m )

    REAL(KIND=dp), INTENT(IN) :: temp
    REAL(KIND=dp), INTENT(IN) :: c_m

    REAL(KIND=dp) :: k0, k2

   k0 = c_m * 6.5e-34_dp * exp( 1335._dp/temp )
   k2 = exp( 2199._dp/temp )
   k0 = k0 /(1.0_dp + k0/(2.7e-17_dp*k2))
   k2 = exp( 460._dp/temp )

   usr5 = k0 + 2.4e-14_dp * k2

END FUNCTION usr5

REAL(KIND=dp) FUNCTION usr8( temp, c_m )

    REAL(KIND=dp), INTENT(IN) :: temp
    REAL(KIND=dp), INTENT(IN) :: c_m

    REAL(KIND=dp), parameter :: boltz = 1.38044e-16_dp

    usr8 = 1.5e-13_dp * (1._dp + 6.e-7_dp*boltz*c_m*temp)

END FUNCTION usr8

REAL(KIND=dp) FUNCTION usr9( temp, c_m, c_h2o )

    REAL(KIND=dp), INTENT(IN) :: temp
    REAL(KIND=dp), INTENT(IN) :: c_m
    REAL(KIND=dp), INTENT(IN) :: c_h2o

    REAL(KIND=dp) :: ko, kinf, fc

    if( c_h2o > 0._dp ) then
       ko   = 2.3e-13_dp * exp( 600._dp/temp )
       kinf = 1.7e-33_dp * c_m * exp( 1000._dp/temp )
       fc   = 1._dp/c_h2o + 1.4e-21_dp * exp( 2200._dp/temp )
       usr9 = (ko + kinf) * fc
    else
       usr9 = 0._dp
    end if

END FUNCTION usr9

REAL(KIND=dp) FUNCTION usr16( rh, temp )

    REAL(KIND=dp), INTENT(IN) :: rh                       ! relative humidity
    REAL(KIND=dp), INTENT(IN) :: temp                     ! temperature (K)


    usr16 = 0._dp

END FUNCTION usr16

REAL(KIND=dp) FUNCTION usr17( rh, temp )

    REAL(KIND=dp), INTENT(IN) :: rh                       ! relative humidity
    REAL(KIND=dp), INTENT(IN) :: temp                     ! temperature (K)

    usr17 = 0._dp

END FUNCTION usr17

REAL(KIND=dp) FUNCTION usr17a( rh, temp )

    REAL(KIND=dp), INTENT(IN) :: rh                       ! relative humidity
    REAL(KIND=dp), INTENT(IN) :: temp                     ! temperature (K)

    usr17a = 0._dp

END FUNCTION usr17a

REAL(KIND=dp) FUNCTION usr23( temp, c_m )

    REAL(KIND=dp), INTENT(IN) :: temp
    REAL(KIND=dp), INTENT(IN) :: c_m

    REAL(KIND=dp) :: fc, k0
    REAL(KIND=dp) :: wrk

    fc    = 3.e-11_dp * (300._dp/temp) ** 3.3_dp
    wrk   = fc * c_m
    k0    = wrk / (1._dp + wrk/1.5e-12_dp)
    usr23 = k0 * .6_dp ** (1._dp/(1._dp + (log10( wrk/1.5e-12_dp ))**2._dp))

END FUNCTION usr23

REAL(KIND=dp) FUNCTION usr24( temp, c_m )

    REAL(KIND=dp), INTENT(IN) :: temp
    REAL(KIND=dp), INTENT(IN) :: c_m

    REAL(KIND=dp) :: ko, wrk

    wrk   = .21_dp*c_m
    ko    = 1._dp + 5.5e-31_dp*exp( 7460._dp/temp )*wrk
    usr24 = 1.7e-42_dp*exp( 7810._dp/temp )*wrk/ko

END FUNCTION usr24

REAL(KIND=dp) FUNCTION usr26( rh, temp )

    REAL(KIND=dp), INTENT(IN) :: rh                       ! relative humidity
    REAL(KIND=dp), INTENT(IN) :: temp                     ! temperature (K)

    usr26 = 0._dp

END FUNCTION usr26



#ENDINLINE