60 h wind forecasts using the XJRUC system combined with CALMET are validated over a domain centered on the Dabancheng-Xiaocaohu region during 2009 (December) and 2010 (January, April, July and October). Time series of mask data to evaluate the reliability of the forecasting system was used. The results show that the 24 h wind forecasts are slightly better than the 37~60 h forecasts. Higher resolution model system does not seem to always provide better wind forecasts. Generally, wind forecasts with 3 km resolution are better, especially in spring and autumn or afternoon in a day. In the complex terrain region of Dabancheng, wind forecasts with 3 km horizontal resolution are almost the same as that with 1 km resolution, except that 1 km resolution wind forecasts are slightly better in winter. A coaser-resolution wind forecast (9 km) are better in spring when strong wind often occurs at complex terrain and landform area, otherwise, wind forecasts with 3 km horizontal resolution are the generally best. In addition, the author addresses the question of whether configuration of CALMET has significant impacts on the forecast. It is found that the kinematic adjustments in CALMET should be used carefully according to the climatic and synoptic characteristics in the study region. In general, CALMET accounting for the slope flows and Froud number adjustment are the best scheme in the case that the impacts of large-scale circulation on the local wind field characteristic are not sure.
XIN Yu
,
CHEN Hongwu
. Influence of CALMET Parameter Adjustment in the XJRUC Coupling of CALMET over Dabanchen-Xiaocaohu Wind Area[J]. Plateau Meteorology, 2014
, 33(6)
: 1674
-1686
.
DOI: 10.7522/j.issn.1000-0534.2013.00191
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