气象2016，Vol.42Issue(4)：424-435,12.DOI:10.7519/j.issn.1000-0526.2016.4.005
地面报中高山站资料的应用分析
Application and Analysis on the Mountain Observatory of Surface Observational Data
摘要
Abstract
Radiosonde observations and surface observations,which are obviously different in spatio-tempo-ral resolutions,serve as the most commonly used and vital data sources in weather analysis and numerical prediction .Further studies are required on how to use the surface observation data with high spatio-tempo-ral resolution to supplement deficiencies and shortages in radiosonde observations in some areas,especially on the effect of using mountain station data on the circulation of low-level troposphere and on the indicative significance to the refinement of wind field analysis of numerical weather forecast.By analyzing various methods used in data assimilation of mountain station observations,this paper investigates the contribution of the supplementary data of radiosonde observation to the data assimilation.As a test case,the surface data and radiosonde observation at 00 UTC 29 June 2013 are adopted for data assimilation,which takes the surface observations of mountain station as radiosonde data and surface data in assimilation analysis.The results indicate that when the surface observation of mountain stations is used as radiosonde data,they have posi-tive effects on the 850 hPa and 925 hPa wind data assimilation analysis.The comparison of using the surface obser-vation as radiosonde data and as surface data shows no apparent difference in 24 h forecasting test on the height and wind fields at 850 hPa and 700 hPa levels.However,the 24 h precipitation forecast results show a weak positive contribution to rainfall intensity and location prediction when using the surface observation of mountain stations as radiosonde data.Continuous precipitation forecast tests prove that in the southwest areas where more mountain stations are located,the precipitation forecasting scores for light rain,moderate rain and heavy rain with station observations used as radiosonde data are better than those with station observations as surface data,and their fore-cast bias are also smaller.But in the other areas of China,no obvious difference is found in precipitation tests by u-sing mountain data as the radiosonde data or the surface data.关键词
地面高山站资料/探空资料/GRAPES/同化试验Key words
surface data of mountain station/radiosonde data/GRAPES/data assimilation test分类
天文与地球科学引用本文复制引用
郝民,龚建东,徐枝芳..地面报中高山站资料的应用分析[J].气象,2016,42(4):424-435,12.基金项目
公益性行业（气象）科研专项（GYHY201106008）及国家自然科学基金项目（41275105和41375107）共同资助 （）
