11. Acronyms

[t]ll ABL & Atmospheric Boundary Layer
AMIP & Atmospheric Model Intercomparison Project
AMWG & Atmospheric Model Working Group
BATS & Biosphere-Atmosphere Transfer Scheme
CAM & Community Atmosphere Model
CAPE & Convectively Available Potential Energy
CCM & Community Climate Model
CCN & Cloud Condensation Nucleus
CCSM & Community Climate System Model
CFC & Chloro-Fluoro Carbon
CFL & Courant-Friedrichs-Levy Condition
CGD & NCAR Climate and Global Dynamics Division
CGS & Centimeters/grams/seconds
CKD & Clough-Kneizys-Davies
CLM & Community Land Model
CMS & (NCAR) Climate Modeling Section
CSIM & Community Sea-Ice Model
CWP & Condensed Water Path
DAO & (NASA Goddard) Data Assimilation Office
DAS & Data Assimilation System
DISORT & DIScrete-Ordinate method Radiative Transfer
ECMWF & European Centre for Medium Range Forecasts
EOF & Empirical Orthogonal Function
FASCODE & FASt atmosphere Signature Code
FFSL & Flux-Form Semi-Lagrangian Transport
FFT & Fast Fourier Transform
FV/fv & Finite Volume
GCM & General Circulation Model
GENLN & General Line-by-line Atmospheric Transmittance and Radiance Model
GEOS & Goddard Earth Observing System
GFDL & Geophysical Fluid Dynamics Laboratory
GSFC & Goddard Space Flight Center
GMT & Greenwich Mean Time
[t]ll HadISST & Hadley Centre for Climate Prediction and Research SST
HITRAN & High-resolution Transmission Molecular Absorption Database
ICA & Independent Column Approximation
IPCC & International Panel on Climate Change
KNMI & Royal Netherlands Meteorological Institute
LBL & Line by line
LCL & Lifting condensation level
LSM & Land Surface Model
MATCH & Model for Atmospheric Transport and Chemistry
M/R & Maximum/Random overlap
NASA & National Space Administration
NCAR & National Center for Atmospheric Research
NCEP & National Center for Environmental Prediction
NOAA & National Oceanographic and Atmospheric Administration
NWP & Numerical Weather Prediction
OI & Optimal Interpolation
OPAC & Optical Properties of Aerosols and Clouds
PBL & Planetary Boundary Layer
PCMDI & Program for Climate Model Diagnosis and Intercomparison
PPM & Piece-wise Parabolic Method
RHS & Right Hand Side
RMS & Root-mean Square
SCMO & Sufficient Condition for Monotonicity
SI & International System of Units
SOM & Slab Ocean Model
SST & Sea-surface temperature
TOA & Top Of Atmosphere
TOM & Top Of Model
UCAR & University Corporation for Atmospheric Research
WKB & Wentzel-Kramer-Brillouin approximation

12. Resolution and dycore-dependent parameters

The following adjustable parameters differ between various finite volume resolutions in the . Refer to the model code for parameters relevant to alternative dynamical cores.

Parameter FV 1 deg FV 2 deg Description  
q_{ic,warm} 2.e-4 2.e-4 threshold for autoconversion of warm ice  
q_{ic,cold} 18.e-6 9.5e-6 threshold for autoconversion of cold ice  
k_{e,strat} 5.e-6 5.e-6 stratiform precipitation evaporation efficiency parameter  
RH_{\min}^{low} .92 .91 minimum RH threshold for low stable clouds  
RH_{\min}^{high} .77 .80 minimum RH threshold for high stable clouds  
k_{1,deep} 0.10 0.10 parameter for deep convection cloud fraction  
p_{mid} 750.e2 750.e2 top of area defined to be mid-level cloud  
c_{0,shallow} 1.0e-4 1.0e-4 shallow convection precip production efficiency parameter  
c_{0,deep} 3.5E-3 3.5E-3 deep convection precipitation production efficiency parameter  
k_{e,conv} 1.0E-6 1.0E-6 convective precipitation evaporation efficiency parameter  
v_i 1.0 0.5 Stokes ice sedimentation fall speed (m/s)  

Table: [table:adjustableparameters]Resolution-dependent parameters