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revision 1.1 by jmc, Wed Oct 9 01:05:03 2002 UTC revision 1.5 by jmc, Mon Jan 26 17:19:33 2004 UTC
# Line 1  Line 1 
1  # AIM physics package parameters:  # AIM physics package parameters:
2    
3    C--   AIM interface parameter (namelist AIM_PARAMS):
4    #     aim_useFMsurfBC :: select surface B.C. from Franco Molteni
5    #     aim_useMMsurfFc :: select Monthly Mean surface forcing (e.g., NCEP)
6    #     aim_surfPotTemp :: surf.Temp input file is in Pot.Temp (aim_useMMsurfFc)
7    #     aim_MMsufx   :: sufix for all Monthly Mean surface forcing files
8    #     aim_MMsufxLength :: Length of sufix (Monthly Mean surf. forc. files)
9    #     aim_LandFile :: file name for Land fraction       (F.M. surfBC)
10    #     aim_albFile  :: file name for Albedo input file   (F.M. surfBC)
11    #     aim_vegFile  :: file name for vegetation fraction (F.M. surfBC)
12    #     aim_sstFile  :: file name for  Sea.Surf.Temp      (F.M. surfBC)
13    #     aim_lstFile  :: file name for Land.Surf.Temp      (F.M. surfBC)
14    #     aim_oiceFile :: file name for Sea Ice fraction    (F.M. surfBC)
15    #     aim_snowFile :: file name for Snow depth          (F.M. surfBC)
16    #     aim_swcFile  :: file name for Soil Water content  (F.M. surfBC)
17    #     aim_dragStrato :: stratospheric-drag damping time scale (s)
18    #     aim_taveFreq :: Frequency^-1 for time-average output (s)
19    #     aim_diagFreq :: Frequency^-1 for diagnostic output (s)
20    #     aim_tendFreq :: Frequency^-1 for tendencies output (s)
21     &AIM_PARAMS
22    #  aim_useFMsurfBC=.FALSE.,
23    #  aim_useMMsurfFc=.TRUE.,
24    #  aim_surfPotTemp=.TRUE.,
25    #  aim_MMsufx = '.cs.bin',
26    #  aim_MMsufxLength = 7,
27       aim_LandFile= 'landFrc.2f2.bin',
28       aim_albFile = 'albedo.FM.bin',
29       aim_vegFile = 'vegetFrc.FM.bin',
30       aim_sstFile = 'seaSurfT.FM.bin',
31       aim_lstFile = 'lndSurfT.2f2.bin',
32       aim_oiceFile= 'seaIce.FM.bin',
33       aim_snowFile= 'snowDepth.FM.bin',
34       aim_swcFile = 'soilMoist.FM.bin',
35    #  aim_dragStrato= 2592000.,
36    #  aim_diagFreq=3600.,
37     &
38    
39  #--   Physical constants  #--   Physical constants
40  #      P0   = reference pressure  #      P0   = reference pressure
41  #      GG   = gravity accel.  #      GG   = gravity accel.
42  #      RD   = gas constant for dry air  #      RD   = gas constant for dry air
43  #      CP   = specific heat at constant pressure  #      CP   = specific heat at constant pressure
44  #      ALHC = latent heat of condensation  #      ALHC = latent heat of condensation
45  #      SBC  = Stefan-Boltzmann constant              #      SBC  = Stefan-Boltzmann constant
46    
47  #--   Constants for forcing fields (namelist AIM_PAR_FOR):  #--   Constants for forcing fields (namelist AIM_PAR_FOR):
48  #      SOLC   = Solar constant (area averaged) in W/m^2  #      SOLC   = Solar constant (area averaged) in W/m^2
49  #      ALBSEA = Albedo over sea  #      ALBSEA = Albedo over sea
50  #      ALBICE = Albedo over sea ice (for ice fraction = 1)  #      ALBICE = Albedo over sea ice (for ice fraction = 1)
51  #      ALBSN  = Albedo over snow (for snow depth > SDALB)  #      ALBSN  = Albedo over snow (for snow depth > SDALB)
52  #      SDALB  = Snow depth corresponding to maximum albedo  #      SDALB  = Snow depth (mm water) corresponding to maximum albedo
53  #      SWCAP  = Soil wetness capacity  #      SWCAP  = Soil wetness at field capacity (volume fraction)
54  #      SWWIL  = Soil wetness at wilting point  #      SWWIL  = Soil wetness at wilting point  (volume fraction)
55   &AIM_PAR_FOR   &AIM_PAR_FOR
56   &   &
57    
58  #--   Constants for surface fluxes (namelist AIM_PAR_SFL):  #--   Constants for surface fluxes (namelist AIM_PAR_SFL):
59  #      FWIND0 = ratio of near-sfc wind to lowest-level wind  #      FWIND0 = ratio of near-sfc wind to lowest-level wind
60  #      FTEMP0 = weight for near-sfc temperature extrapolation (0-1) :  #      FTEMP0 = weight for near-sfc temperature extrapolation (0-1) :
61  #               1 : linear extrapolation from two lowest levels  #               1 : linear extrapolation from two lowest levels
# Line 32  Line 68 
68  #      CHL    = heat exchange coefficient over land  #      CHL    = heat exchange coefficient over land
69  #      CHS    = heat exchange coefficient over sea  #      CHS    = heat exchange coefficient over sea
70  #      VGUST  = wind speed for sub-grid-scale gusts  #      VGUST  = wind speed for sub-grid-scale gusts
71  #      SWMAX  = Soil wetness (in mm) corresp. to potential evapotranspiration    #      CTDAY  = daily-cycle correction (dTskin/dSSRad)
72    #      DTHETA = Potential temp. gradient for stability correction
73    #      FSTAB  = Amplitude of stability correction (fraction)
74    #      HDRAG  = Height scale for orographic correction
75    #      FHDRAG = Amplitude of orographic correction (fraction)
76   &AIM_PAR_SFL   &AIM_PAR_SFL
77    FWIND0 = 0.42,  #  FTEMP0 = 0.,
78    FTEMP0 = 0.,  #  FHUM0  = 0.,
   CHL  = 2.0e-3,  
   CHS  = 0.9e-3,  
   VGUST  = 4.,  
79   &   &
80    
81  #--   Convection constants (namelist AIM_PAR_CNV):  #--   Convection constants (namelist AIM_PAR_CNV):
82  #      RHBL   = relative hum. threshold in the boundary (lowest) layer  #      PSMIN  = minimum (norm.) sfc. pressure for the occurrence of convection
83  #      TRCNV  = time of relaxation (in hours) towards neutral equilibrium  #      TRCNV  = time of relaxation (in hours) towards reference state
84    #      QBL    = specific hum. threshold in the boundary layer
85    #      RHBL   = relative hum. threshold in the boundary layer
86    #      RHIL   = rel. hum. threshold in intermed. layers for secondary mass flux
87  #      ENTMAX = max. entrainment as a fraction of cloud-base mass flux  #      ENTMAX = max. entrainment as a fraction of cloud-base mass flux
88    #      SMF    = ratio between secondary and primary mass flux at cloud-base
89   &AIM_PAR_CNV   &AIM_PAR_CNV
90   &   &
91    
92  #--   Constants for large-scale condendation (namelist AIM_PAR_LSC):  #--   Constants for large-scale condendation (namelist AIM_PAR_LSC):
93  #      RHLSC  = Relative humidity threshold  #      TRLSC  = Relaxation time (in hours) for specific humidity
94  #      TRLSC  = Relaxation time (in hours) for supersat. specific humidity  #      RHLSC  = Maximum relative humidity threshold (at sigma=1)
95    #      DRHLSC = Vertical range of relative humidity threshold
96    #      QSMAX  = used to define the maximum latent heat release
97   &AIM_PAR_LSC   &AIM_PAR_LSC
98   &   &
99    
100  #--   Radiation constants (namelist AIM_PAR_RAD):  #--   Radiation constants (namelist AIM_PAR_RAD):
 #      ABSSW  = shortwave absorptivity for dry air (per dp = 10^5 Pa)  
 #      ABSLW  =  longwave absorptivity for dry air (per dp = 10^5 Pa)  
 #      ABWSW  = shortwave absorptivity for water vapour (per dq = 1 g/kg)  
 #      ABWLW  =  longwave absorptivity for water vapour (per dq = 1 g/kg)  
 #      ABCSW  = shortwave absorptivity for cloud fraction  
 #      ABCLW  =  longwave absorptivity for cloud fraction  
 #      EPSSW  = fraction of incoming solar radiation absorbed by ozone  
 #      EPSLW  = fraction of surface LW radiation emitted directly to space  
 #      ALBCL  = cloud albedo (for cloud cover = 1)  
101  #      RHCL1  = relative hum. corresponding to cloud cover = 0  #      RHCL1  = relative hum. corresponding to cloud cover = 0
102  #      RHCL2  = relative hum. corresponding to cloud cover = 1  #      RHCL2  = relative hum. corresponding to cloud cover = 1
103  #      QACL   = specific hum. threshold for cloud cover  #      QACL1  = specific hum. threshold for cloud cover in the upper troposphere
104    #      QACL2  = specific hum. threshold for cloud cover in the upper troposphere
105    #      ALBCL  = cloud albedo (for cloud cover = 1)
106    #      EPSSW  = fraction of incoming solar radiation absorbed by ozone
107    #      EPSLW  = fraction of surface LW radiation emitted directly to space
108    #      EMISFC = longwave surface emissivity
109    #--:            shortwave absorptivities (for dp = 10^5 Pa) :
110    #      ABSDRY = abs. of dry air      (visible band)
111    #      ABSAER = abs. of aerosols     (visible band)
112    #      ABSWV1 = abs. of water vapour (visible band, for dq = 1 g/kg)
113    #      ABSWV2 = abs. of water vapour (near IR band, for dq = 1 g/kg)
114    #      ABSCL1 = abs. of clouds       (visible band, constant term)
115    #      ABSCL2 = abs. of clouds       (visible band, for dw = 1 g/kg)
116    #--:            longwave absorptivities (per dp = 10^5 Pa) :
117    #      ABLWIN = abs. of air in "window" band
118    #      ABLCO2 = abs. of air in CO2 band
119    #      ABLWV1 = abs. of water vapour in H2O band 1 (weak),   for dq = 1 g/kg
120    #      ABLWV2 = abs. of water vapour in H2O band 2 (strong), for dq = 1 g/kg
121    #      ABLCL1 = abs. of clouds       in "window" band,       constant term
122    #      ABLCL2 = abs. of clouds       in "window" band,       for dw = 1 g/kg
123   &AIM_PAR_RAD   &AIM_PAR_RAD
    ABWLW = 0.60,  
    ALBCL = 0.34,  
    RHCL1 = 0.50,  
    RHCL2 = 0.90,  
    QACL  = 0.50,  
124   &   &
125    
126  #--   Constants for vertical dif. and sh. conv. (namelist AIM_PAR_VDI):  #--   Constants for vertical dif. and sh. conv. (namelist AIM_PAR_VDI):
 #      TRVDI  = relaxation time (in hours) for moisture diffusion  
127  #      TRSHC  = relaxation time (in hours) for shallow convection  #      TRSHC  = relaxation time (in hours) for shallow convection
128    #      TRVDI  = relaxation time (in hours) for moisture diffusion
129    #      TRVDS  = relaxation time (in hours) for super-adiab. conditions
130    #      RHGRAD = maximum gradient of relative humidity (d_RH/d_sigma)
131    #      SEGRAD = minimum gradient of dry static energy (d_DSE/d_phi)
132   &AIM_PAR_VDI   &AIM_PAR_VDI
    TRVDI = 48.,  
    TRSHC = 12.,  
133   &   &
134    
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