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cd1b9754e4 Jean*0001 # AIM physics package parameters:
0002
f925ef2945 Jean*0003 C-- AIM interface parameter (namelist AIM_PARAMS):
0004 # aim_useFMsurfBC :: select surface B.C. from Franco Molteni
0005 # aim_useMMsurfFc :: select Monthly Mean surface forcing (e.g., NCEP)
0006 # aim_surfPotTemp :: surf.Temp input file is in Pot.Temp (aim_useMMsurfFc)
0953a93f7b Jean*0007 # aim_energPrecip :: account for energy of precipitation (snow & rain temp)
0008 # aim_splitSIOsFx :: compute separately Sea-Ice & Ocean surf. Flux
0009 # aim_LandFile :: file name for Land fraction [0-1]
f925ef2945 Jean*0010 # aim_MMsufx :: sufix for all Monthly Mean surface forcing files
0011 # aim_MMsufxLength :: Length of sufix (Monthly Mean surf. forc. files)
0012 # aim_albFile :: file name for Albedo input file (F.M. surfBC)
0013 # aim_vegFile :: file name for vegetation fraction (F.M. surfBC)
0014 # aim_sstFile :: file name for Sea.Surf.Temp (F.M. surfBC)
0015 # aim_lstFile :: file name for Land.Surf.Temp (F.M. surfBC)
0016 # aim_oiceFile :: file name for Sea Ice fraction (F.M. surfBC)
0017 # aim_snowFile :: file name for Snow depth (F.M. surfBC)
0018 # aim_swcFile :: file name for Soil Water content (F.M. surfBC)
0019 # aim_dragStrato :: stratospheric-drag damping time scale (s)
0953a93f7b Jean*0020 # aim_clrSkyDiag :: compute clear-sky radiation for diagnostics
f925ef2945 Jean*0021 # aim_diagFreq :: Frequency^-1 for diagnostic output (s)
0022 # aim_tendFreq :: Frequency^-1 for tendencies output (s)
0023 &AIM_PARAMS
0024 aim_useFMsurfBC=.FALSE.,
0025 aim_useMMsurfFc=.FALSE.,
0026 &
0027
cd1b9754e4 Jean*0028 #-- Physical constants
0953a93f7b Jean*0029 # P0 = reference pressure [Pa=N/m2]
0030 # GG = gravity accel. [m/s2]
0031 # RD = gas constant for dry air [J/kg/K]
0032 # CP = specific heat at constant pressure [J/kg/K]
0033 # ALHC = latent heat of condensation [J/g]
0034 # ALHF = latent heat of freezing [J/g]
0035 # SBC = Stefan-Boltzmann constant
0036 # rainCP = heat capacity of liquid water [J/g/K]
0037 # tFreeze = freezing temperature of pure water [K]
cd1b9754e4 Jean*0038
0039 #-- Constants for forcing fields (namelist AIM_PAR_FOR):
0040 # SOLC = Solar constant (area averaged) in W/m^2
0041 # ALBSEA = Albedo over sea
0042 # ALBICE = Albedo over sea ice (for ice fraction = 1)
0043 # ALBSN = Albedo over snow (for snow depth > SDALB)
f925ef2945 Jean*0044 # SDALB = Snow depth (mm water) corresponding to maximum albedo
0045 # SWCAP = Soil wetness at field capacity (volume fraction)
0046 # SWWIL = Soil wetness at wilting point (volume fraction)
0953a93f7b Jean*0047 # hSnowWetness :: snow depth (m) corresponding to maximum wetness
cd1b9754e4 Jean*0048 &AIM_PAR_FOR
0049 &
0050
0953a93f7b Jean*0051 #-- Constants for surface fluxes (namelist AIM_PAR_SFL):
cd1b9754e4 Jean*0052 # FWIND0 = ratio of near-sfc wind to lowest-level wind
0053 # FTEMP0 = weight for near-sfc temperature extrapolation (0-1) :
0054 # 1 : linear extrapolation from two lowest levels
0055 # 0 : constant potential temperature ( = lowest level)
0056 # FHUM0 = weight for near-sfc specific humidity extrapolation (0-1) :
0057 # 1 : extrap. with constant relative hum. ( = lowest level)
0058 # 0 : constant specific hum. ( = lowest level)
0059 # CDL = drag coefficient for momentum over land
0060 # CDS = drag coefficient for momentum over sea
0061 # CHL = heat exchange coefficient over land
0062 # CHS = heat exchange coefficient over sea
0063 # VGUST = wind speed for sub-grid-scale gusts
f925ef2945 Jean*0064 # CTDAY = daily-cycle correction (dTskin/dSSRad)
0065 # DTHETA = Potential temp. gradient for stability correction
0953a93f7b Jean*0066 # dTstab = potential temp. increment for stability function derivative
f925ef2945 Jean*0067 # FSTAB = Amplitude of stability correction (fraction)
0068 # HDRAG = Height scale for orographic correction
0069 # FHDRAG = Amplitude of orographic correction (fraction)
cd1b9754e4 Jean*0070 &AIM_PAR_SFL
0071 &
0072
0073 #-- Convection constants (namelist AIM_PAR_CNV):
f925ef2945 Jean*0074 # PSMIN = minimum (norm.) sfc. pressure for the occurrence of convection
0075 # TRCNV = time of relaxation (in hours) towards reference state
0076 # QBL = specific hum. threshold in the boundary layer
0077 # RHBL = relative hum. threshold in the boundary layer
0078 # RHIL = rel. hum. threshold in intermed. layers for secondary mass flux
cd1b9754e4 Jean*0079 # ENTMAX = max. entrainment as a fraction of cloud-base mass flux
f925ef2945 Jean*0080 # SMF = ratio between secondary and primary mass flux at cloud-base
cd1b9754e4 Jean*0081 &AIM_PAR_CNV
0082 &
0083
0953a93f7b Jean*0084 #-- Constants for large-scale condensation (namelist AIM_PAR_LSC):
f925ef2945 Jean*0085 # TRLSC = Relaxation time (in hours) for specific humidity
0086 # RHLSC = Maximum relative humidity threshold (at sigma=1)
0087 # DRHLSC = Vertical range of relative humidity threshold
0088 # QSMAX = used to define the maximum latent heat release
cd1b9754e4 Jean*0089 &AIM_PAR_LSC
0090 &
0091
0092 #-- Radiation constants (namelist AIM_PAR_RAD):
0093 # RHCL1 = relative hum. corresponding to cloud cover = 0
0094 # RHCL2 = relative hum. corresponding to cloud cover = 1
f925ef2945 Jean*0095 # QACL1 = specific hum. threshold for cloud cover in the upper troposphere
0096 # QACL2 = specific hum. threshold for cloud cover in the upper troposphere
0097 # ALBCL = cloud albedo (for cloud cover = 1)
0098 # EPSSW = fraction of incoming solar radiation absorbed by ozone
0099 # EPSLW = fraction of surface LW radiation emitted directly to space
0100 # EMISFC = longwave surface emissivity
0101 #--: shortwave absorptivities (for dp = 10^5 Pa) :
0102 # ABSDRY = abs. of dry air (visible band)
0103 # ABSAER = abs. of aerosols (visible band)
0104 # ABSWV1 = abs. of water vapour (visible band, for dq = 1 g/kg)
0105 # ABSWV2 = abs. of water vapour (near IR band, for dq = 1 g/kg)
0106 # ABSCL1 = abs. of clouds (visible band, constant term)
0107 # ABSCL2 = abs. of clouds (visible band, for dw = 1 g/kg)
0108 #--: longwave absorptivities (per dp = 10^5 Pa) :
0109 # ABLWIN = abs. of air in "window" band
0110 # ABLCO2 = abs. of air in CO2 band
0111 # ABLWV1 = abs. of water vapour in H2O band 1 (weak), for dq = 1 g/kg
0112 # ABLWV2 = abs. of water vapour in H2O band 2 (strong), for dq = 1 g/kg
0113 # ABLCL1 = abs. of clouds in "window" band, constant term
0114 # ABLCL2 = abs. of clouds in "window" band, for dw = 1 g/kg
cd1b9754e4 Jean*0115 &AIM_PAR_RAD
0116 &
0117
0953a93f7b Jean*0118 #-- Constants for vertical dif. and sh. conv. (namelist AIM_PAR_VDI):
cd1b9754e4 Jean*0119 # TRSHC = relaxation time (in hours) for shallow convection
f925ef2945 Jean*0120 # TRVDI = relaxation time (in hours) for moisture diffusion
0121 # TRVDS = relaxation time (in hours) for super-adiab. conditions
0122 # RHGRAD = maximum gradient of relative humidity (d_RH/d_sigma)
0123 # SEGRAD = minimum gradient of dry static energy (d_DSE/d_phi)
cd1b9754e4 Jean*0124 &AIM_PAR_VDI
0125 &
0126
