Table2-13 Table 2-13: Snow cover and sea ice. The table shows whether snow mass is a prognostic variable, and whether (prognostic or prescribed) snow cover alters the nonradiative thermal properties (heat capacity/conductivity, etc.) or roughness of the surface. For sea ice, the table shows whether the surface temperature is prognostically determined, and whether there is accumulation of snow on the ice. Hyperlinks connect to the summary report for each AMIP model version.

Model Version Snow Cover Sea Ice
Prognostic Snow Mass Thermal Effects Roughness Effects Prognostic Surface Temperature Snow Accumulation
BMRC BMRC2.3 (R31 L9) 1990 x   x x x
BMRC BMRC3.7 (R31 L17) 1995 different from BMRC2.3   different from BMRC2.3 x x
BMRC BMRC3.7.1 (R31 L17) 1995 different from BMRC2.3 x different from BMRC2.3 x x
CCC GCMII (T32 L10) 1990 x x   x x
CCSR/NIES AGCM (T21 L20) 1995 x x x x x
CNRM EMERAUDE (T42 L30) 1992 x   x x x
CNRM ARPEGE Cy11 (T42 L30) 1995 x   x x x
COLA COLA1.1 (R40 L18) 1993 x x   x  
CSIRO CSIRO9 Mark 1 (R21 L9) 1992 x x   x x
CSU CSU91 (4x5 L17) 1991 x x   x  
CSU CSU95 (4x5 L17) 1995 different from CSU91 different from CSU91 x x  
DERF GFDLSM392.2 (T42 L18) 1993 x x   x x
DERF GFDLSM195 (T42 L18) 1995 x x   x, no S. Hem. leads x
DNM A5407.V1 (4x5 L7) 1991 x x   x x
DNM A5407.V2 (4x5 L7) 1995 x x   x x
ECMWF ECMWF Cy36 (T42 L19) 1990 x x      
GFDL CDG1 (R30 L14) 1992 x     x x
GISS Model II Prime (4x5 L9) 1994 x x   x x
GLA GCM-01.0 AMIP-01 (4x5 L17) 1992 x x   x x
GSFC GEOS-1 (4x5 L20) 1993   x   x  
IAP IAP-2L (4x5 L2) 1993 x x   x x
JMA GSM8911 (T42 L21) 1993 x x x x  
LLNL LLNL/UCLA MPP1 (4x5 L15) 1995 x     x  
LMD LMD5 (3.6x5.6 L11) 1991 x x   x x
LMD LMD6b (3.6x5.6 L11) 1995 x x   x x
LMD LMD6s (3.6x5.6 L11) 1995 x x   x x
MGO AMIP92 (T30 L14) 1992 x x   x x
MPI ECHAM3 (T42 L19) 1992 x x   x  
MPI ECHAM4 (T42 L19) 1995 x x   x  
MRI GCM-II (4x5 L15) 1993 x x   x x
MRI GCM-IIb (4x5 L15) 1995 x x   x x
NCAR CCM2 (T42 L18) 1992   x x x prescribed
NMC MRF (T40 L18) 1992 x     x with no effects on ice properties
NRL NOGAPS3.2 (T47 L18) 1993 x x   x  
NRL NOGAPS3.4 (T47 L18) 1995 x x   x  
NTU GCM (T42 L13) 1995 x     x  
RPN NWP-D40P29 (T63 L23) 1993       x  
SUNYA CCM1-TG (R15 L12) 1990 x     x  
SUNYA/NCAR GENESIS1.5 (T31 L18) 1994 x x x x x
SUNYA/NCAR GENESIS1.5A (T31 L18) 1995 x x x x x
UCLA AGCM6.4 (4x5 L15) 1992 x     x  
UGAMP UGCM1.3 (T42 L19) 1993 x        
UIUC MLAM-AMIP (4x5 L7) 1993 x x   x x
UKMO HADAM1 (2.5x3.75 L19) 1993 x x x x no budget, but snow cover affects albedo
YONU Tr5.1 (4x5 L5) 1994 x x   x x
YONU Tr7.1 (4x5 L7) 1995 x x   x x


Continue

Return to Main Document Directory

Return to AMIP home page

Last update November 12, 1996. For further information, contact: Tom Phillips (phillips@tworks.llnl.gov)

LLNL Disclaimers

UCRL-ID-116384