--- MITgcm/verification/aim.5l_cs/input/data.aimphys 2002/10/09 01:05:03 1.1 +++ MITgcm/verification/aim.5l_cs/input/data.aimphys 2004/02/23 20:53:17 1.6 @@ -1,25 +1,61 @@ # AIM physics package parameters: +C-- AIM interface parameter (namelist AIM_PARAMS): +# aim_useFMsurfBC :: select surface B.C. from Franco Molteni +# aim_useMMsurfFc :: select Monthly Mean surface forcing (e.g., NCEP) +# aim_surfPotTemp :: surf.Temp input file is in Pot.Temp (aim_useMMsurfFc) +# aim_MMsufx :: sufix for all Monthly Mean surface forcing files +# aim_MMsufxLength :: Length of sufix (Monthly Mean surf. forc. files) +# aim_LandFile :: file name for Land fraction (F.M. surfBC) +# aim_albFile :: file name for Albedo input file (F.M. surfBC) +# aim_vegFile :: file name for vegetation fraction (F.M. surfBC) +# aim_sstFile :: file name for Sea.Surf.Temp (F.M. surfBC) +# aim_lstFile :: file name for Land.Surf.Temp (F.M. surfBC) +# aim_oiceFile :: file name for Sea Ice fraction (F.M. surfBC) +# aim_snowFile :: file name for Snow depth (F.M. surfBC) +# aim_swcFile :: file name for Soil Water content (F.M. surfBC) +# aim_dragStrato :: stratospheric-drag damping time scale (s) +# aim_taveFreq :: Frequency^-1 for time-average output (s) +# aim_diagFreq :: Frequency^-1 for diagnostic output (s) +# aim_tendFreq :: Frequency^-1 for tendencies output (s) + &AIM_PARAMS +# aim_useFMsurfBC=.FALSE., +# aim_useMMsurfFc=.TRUE., +# aim_surfPotTemp=.TRUE., +# aim_MMsufx = '.cs.bin', +# aim_MMsufxLength = 7, + aim_LandFile= 'landFrc.2f2.bin', + aim_albFile = 'albedo.FM.bin', + aim_vegFile = 'vegetFrc.FM.bin', + aim_sstFile = 'seaSurfT.FM.bin', + aim_lstFile = 'lndSurfT.2f2.bin', + aim_oiceFile= 'seaIce.2f2.bin', + aim_snowFile= 'snowDepth.FM.bin', + aim_swcFile = 'soilMoist.FM.bin', +# aim_dragStrato= 2592000., +# aim_diagFreq=3600., + & + #-- Physical constants # P0 = reference pressure # GG = gravity accel. # RD = gas constant for dry air # CP = specific heat at constant pressure # ALHC = latent heat of condensation -# SBC = Stefan-Boltzmann constant +# SBC = Stefan-Boltzmann constant #-- Constants for forcing fields (namelist AIM_PAR_FOR): # SOLC = Solar constant (area averaged) in W/m^2 # ALBSEA = Albedo over sea # ALBICE = Albedo over sea ice (for ice fraction = 1) # ALBSN = Albedo over snow (for snow depth > SDALB) -# SDALB = Snow depth corresponding to maximum albedo -# SWCAP = Soil wetness capacity -# SWWIL = Soil wetness at wilting point +# SDALB = Snow depth (mm water) corresponding to maximum albedo +# SWCAP = Soil wetness at field capacity (volume fraction) +# SWWIL = Soil wetness at wilting point (volume fraction) &AIM_PAR_FOR & -#-- Constants for surface fluxes (namelist AIM_PAR_SFL): +#-- Constants for surface fluxes (namelist AIM_PAR_SFL): # FWIND0 = ratio of near-sfc wind to lowest-level wind # FTEMP0 = weight for near-sfc temperature extrapolation (0-1) : # 1 : linear extrapolation from two lowest levels @@ -32,54 +68,67 @@ # CHL = heat exchange coefficient over land # CHS = heat exchange coefficient over sea # VGUST = wind speed for sub-grid-scale gusts -# SWMAX = Soil wetness (in mm) corresp. to potential evapotranspiration +# CTDAY = daily-cycle correction (dTskin/dSSRad) +# DTHETA = Potential temp. gradient for stability correction +# FSTAB = Amplitude of stability correction (fraction) +# HDRAG = Height scale for orographic correction +# FHDRAG = Amplitude of orographic correction (fraction) &AIM_PAR_SFL - FWIND0 = 0.42, - FTEMP0 = 0., - CHL = 2.0e-3, - CHS = 0.9e-3, - VGUST = 4., +# FTEMP0 = 0., +# FHUM0 = 0., & #-- Convection constants (namelist AIM_PAR_CNV): -# RHBL = relative hum. threshold in the boundary (lowest) layer -# TRCNV = time of relaxation (in hours) towards neutral equilibrium +# PSMIN = minimum (norm.) sfc. pressure for the occurrence of convection +# TRCNV = time of relaxation (in hours) towards reference state +# QBL = specific hum. threshold in the boundary layer +# RHBL = relative hum. threshold in the boundary layer +# RHIL = rel. hum. threshold in intermed. layers for secondary mass flux # ENTMAX = max. entrainment as a fraction of cloud-base mass flux +# SMF = ratio between secondary and primary mass flux at cloud-base &AIM_PAR_CNV & -#-- Constants for large-scale condendation (namelist AIM_PAR_LSC): -# RHLSC = Relative humidity threshold -# TRLSC = Relaxation time (in hours) for supersat. specific humidity +#-- Constants for large-scale condendation (namelist AIM_PAR_LSC): +# TRLSC = Relaxation time (in hours) for specific humidity +# RHLSC = Maximum relative humidity threshold (at sigma=1) +# DRHLSC = Vertical range of relative humidity threshold +# QSMAX = used to define the maximum latent heat release &AIM_PAR_LSC & #-- 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) # RHCL1 = relative hum. corresponding to cloud cover = 0 # RHCL2 = relative hum. corresponding to cloud cover = 1 -# QACL = specific hum. threshold for cloud cover +# QACL1 = specific hum. threshold for cloud cover in the upper troposphere +# QACL2 = specific hum. threshold for cloud cover in the upper troposphere +# ALBCL = cloud albedo (for cloud cover = 1) +# EPSSW = fraction of incoming solar radiation absorbed by ozone +# EPSLW = fraction of surface LW radiation emitted directly to space +# EMISFC = longwave surface emissivity +#--: shortwave absorptivities (for dp = 10^5 Pa) : +# ABSDRY = abs. of dry air (visible band) +# ABSAER = abs. of aerosols (visible band) +# ABSWV1 = abs. of water vapour (visible band, for dq = 1 g/kg) +# ABSWV2 = abs. of water vapour (near IR band, for dq = 1 g/kg) +# ABSCL1 = abs. of clouds (visible band, constant term) +# ABSCL2 = abs. of clouds (visible band, for dw = 1 g/kg) +#--: longwave absorptivities (per dp = 10^5 Pa) : +# ABLWIN = abs. of air in "window" band +# ABLCO2 = abs. of air in CO2 band +# ABLWV1 = abs. of water vapour in H2O band 1 (weak), for dq = 1 g/kg +# ABLWV2 = abs. of water vapour in H2O band 2 (strong), for dq = 1 g/kg +# ABLCL1 = abs. of clouds in "window" band, constant term +# ABLCL2 = abs. of clouds in "window" band, for dw = 1 g/kg &AIM_PAR_RAD - ABWLW = 0.60, - ALBCL = 0.34, - RHCL1 = 0.50, - RHCL2 = 0.90, - QACL = 0.50, & -#-- Constants for vertical dif. and sh. conv. (namelist AIM_PAR_VDI): -# TRVDI = relaxation time (in hours) for moisture diffusion +#-- Constants for vertical dif. and sh. conv. (namelist AIM_PAR_VDI): # TRSHC = relaxation time (in hours) for shallow convection +# TRVDI = relaxation time (in hours) for moisture diffusion +# TRVDS = relaxation time (in hours) for super-adiab. conditions +# RHGRAD = maximum gradient of relative humidity (d_RH/d_sigma) +# SEGRAD = minimum gradient of dry static energy (d_DSE/d_phi) &AIM_PAR_VDI - TRVDI = 48., - TRSHC = 12., &