SURFEX v7.3: /home/dasprezs/EXPORT_v7_3/src/SURFEX/modd_bvoc

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00001 !     ####################
00002       MODULE MODD_BVOC_PAR
00003 !     ####################
00004 !
00005 !!
00006 !! Declaration of parameters for biogenic emissions 
00007 !
00008 !!
00009 !!**  IMPLICIT ARGUMENTS
00010 !!    ------------------
00011 !!      None 
00012 !!
00013 !!    REFERENCE
00014 !!    ---------
00015 !!     
00016 !*       0.   DECLARATIONS
00017 !             ----------
00018 !
00019 IMPLICIT NONE
00020 !
00021 !
00022 ! Parameters for effect of canopy light attenuation when ISBA_STD is used
00023 REAL, PARAMETER  :: XCANFAC=0.8
00024 !
00025 !Parametres Guenther's formula;
00026 !
00027 !isoprene
00028 REAL, PARAMETER  :: XISO_ALF=0.0027
00029 REAL, PARAMETER  :: XISO_CL =1.066
00030 REAL, PARAMETER  :: XISO_CT1=95000.
00031 REAL, PARAMETER  :: XISO_CT2 =230000.
00032 REAL, PARAMETER  :: XISO_BTS =303.    !temperature of normalization
00033 REAL, PARAMETER  :: XISO_BTM =314.
00034 !
00035 !monoterpenes
00036 REAL, PARAMETER :: XMONO_BETA=0.09
00037 REAL, PARAMETER :: XMONO_T3=303.      !temperature of normalization
00038 !
00039 !
00040 !--------------------------------------------------
00041 !Default emission potential for other types of vegetation than ligneous(france) 
00042 !
00043 !Grassland (Simpson et al, 1999)
00044 !microg.m-2.hr-1)
00045 REAL, PARAMETER  :: XISOPOT_GRASS= 40.
00046 REAL, PARAMETER  :: XMONOPOT_GRASS= 40.
00047 !
00048 !Crops
00049 REAL, PARAMETER  :: XISOPOT_CROP= 0.
00050 REAL, PARAMETER  :: XMONOPOT_CROP= 100.
00051 !
00052 !
00053 END MODULE MODD_BVOC_PAR