TY - JOUR
T1 - Improvements to surface flux computations in a non-local-mixing pbl scheme, and refinements to urban processes in the noah land-surface model with the NCAR/ATEC real-time FDDA and forecast system
AU - Liu, Yubao
AU - Chen, Fei
AU - Warner, Tom
AU - Swerdlin, Scott
AU - Bowers, James
AU - Halvorson, Scott
PY - 2004
Y1 - 2004
N2 - The MM5 MRF PBL scheme was revised to reduce the known problems of the under-prediction of daytime surface winds and the overprediction of the PBL heights. This revision was an effort to improve the real-time multi-grid four-dimensional data assimilation and forecast system's data assimilation methods and model physics schemes. More realistic methods for computation of free-convective turbulence, PBL height, and surface heat flux were developed and incorporated into the MRF PBL scheme. The modified MRF PBL scheme improves the PBL height prediction, reduces the daytime surface wind bias, and improves surface thermal and moisture variables.
AB - The MM5 MRF PBL scheme was revised to reduce the known problems of the under-prediction of daytime surface winds and the overprediction of the PBL heights. This revision was an effort to improve the real-time multi-grid four-dimensional data assimilation and forecast system's data assimilation methods and model physics schemes. More realistic methods for computation of free-convective turbulence, PBL height, and surface heat flux were developed and incorporated into the MRF PBL scheme. The modified MRF PBL scheme improves the PBL height prediction, reduces the daytime surface wind bias, and improves surface thermal and moisture variables.
UR - https://www.scopus.com/pages/publications/2442538986
M3 - Conference article
AN - SCOPUS:2442538986
SN - 0003-0007
SP - 2371
EP - 2378
JO - Bulletin of the American Meteorological Society
JF - Bulletin of the American Meteorological Society
T2 - Combined Preprints: 84th American Meteorological Society (AMS) Annual Meeting
Y2 - 11 January 2004 through 15 January 2004
ER -