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!Environment Canada - Atmospheric Science and Technology License/Disclaimer, 
!                     version 3; Last Modified: May 7, 2008.
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***fonction sttlcl - calcule la temperature du lcl
*

      function sttlcl(td, tt) 1,1
*
#include "impnone.cdk"
*
      real sttlcl
      real td, tt
*
*author
*      N. Brunet (septembre 2000)
*
*object
*      to compute the temperature of the lifting
*      condensation level (lcl) from a temperature
*      and a dew point temperature.
*
*      result is in deg K
*
*arguments
*      tt - temperature (K) at the base of the ascent
*      td - dew point temp (K) at the base of the ascent
*
*implicites
#include "consphy.cdk"
*modules
      external inctphy
*
**
*--------------------------------------------------------------------
*
      real a, x, y
*
#include "dintern.cdk"
#include "fintern.cdk"
*
*-------------------------------------------------------------------
#include "initcph.cdk"
*
      if(td .ge. tt)then
         sttlcl = tt
         return
      end if
*
      a = dble(cpd)/(dble(eps1)*folv(td))
*
      x = a*tt - 1.
      y = a - (1./td)
*
      sttlcl = x / y
*
      return
      CONTAINS
#include "fintern90.cdk"
      end