TY - GEN
T1 - Implementing an advanced land surface scheme into an AGCM
T2 - International Symposium on Exchange Processes at the Land Surface for a Range of Space and Time Scales
AU - Yang, Z-L.
AU - Pitman, A. J.
AU - Henderson-Sellers, A.
PY - 1993
Y1 - 1993
N2 - This paper describes the first order impacts of incorporating a complex land-surface scheme, the Bare Essentials of Surface Transfer (BEST) into the Australian Bureau of Meteorology Research Centre (BMRC) global atmospheric general circulation model (AGCM). A two-year climatology from the AGCM with BEST has been compared with a ten-year simulated climatology without BEST. The wintertime simulations with BEST show significant improvements especially over the Northern Hemisphere mainly due to the more realistic treatment of snow cover. However, the summertime simulations with BEST are worse than those from the current BMRC AGCM due to the poor specification of albedo and roughness length. Incorporating BEST into the BMRC AGCM leads to an overall reduction of surface wetness, evaporation, cloud cover and precipitation, results consistent with findings by other authors.
AB - This paper describes the first order impacts of incorporating a complex land-surface scheme, the Bare Essentials of Surface Transfer (BEST) into the Australian Bureau of Meteorology Research Centre (BMRC) global atmospheric general circulation model (AGCM). A two-year climatology from the AGCM with BEST has been compared with a ten-year simulated climatology without BEST. The wintertime simulations with BEST show significant improvements especially over the Northern Hemisphere mainly due to the more realistic treatment of snow cover. However, the summertime simulations with BEST are worse than those from the current BMRC AGCM due to the poor specification of albedo and roughness length. Incorporating BEST into the BMRC AGCM leads to an overall reduction of surface wetness, evaporation, cloud cover and precipitation, results consistent with findings by other authors.
UR - http://www.scopus.com/inward/record.url?scp=0027837068&partnerID=8YFLogxK
M3 - Conference proceeding contribution
AN - SCOPUS:0027837068
SN - 0947571531
SN - 9780947571535
T3 - IAHS PUBLICATION
SP - 583
EP - 590
BT - Exchange processes at the land surface for a range of space and timescales
A2 - Bolle, Hans-Jürgen
A2 - Feddes, R. A.
A2 - Kalma, Jetse D.
PB - International Association of Hydrological Sciences
CY - Wallingford, Oxfordshire
Y2 - 13 July 1993 through 16 July 1993
ER -