Izvorni znanstveni članak
REDUCING WARM BIAS OVER THE NORTH-EASTERN EUROPE IN A REGIONAL CLIMATE MODEL
Ivan Güttler
; Croatian Meteorological and Hydrological Service Grič 3, 10 000 Zagreb, Croatia
Sažetak
Large warm bias in near-surface temperature during winter was detected over northeastern Europe in simulations with RegCM4 regional climate model when compared to observational dataset. Modifications to alleviate warm bias included reductions of the low-level cloud cover fraction and the minimum turbulent mixing in stable planetary boundary layer. When implemented, these modifications reduced warm bias up to 50% and did not degrade, or substantially impact, the variables analyzed outside the region and season considered. Validations of the planetary boundary layer and cloud features were limited due to unavailability of appropriate observational data at climatological timescales.
Ključne riječi
regional climate model; cloud cover; planetary boundary layer; temperature bias
Hrčak ID:
70743
URI
Datum izdavanja:
21.7.2011.
Posjeta: 1.639 *