摘要
ItisprovedinthispaperthatNWPsystematicforecasterrorsinthezonalmeancirculationareduetothedifferenceinwesterlyaccelerationprocessduringtheforecastingperiodbetweenmodelandrealatmospheres.Thoseforcingfactorswhichevokethezonalmeanwindvariationcanbesplitintovariouslineartermsaccordingtothenon-accelerationtheoreminaprimitiveequationsystem,Byapplyingthistech-niquetothediagnosisoftheforecastproduetsoftheT42L9modelinJanuary1992andinJuly1992,itisindicatedthatthemodelhastheabilitytoforecastthezonalmeanwindtoareasonableextent,buttherearestillsomeerrorsinseveralplaces,especiallyintheuppertroposphereandlowerstrato-sphereinthemid-latituderegionaswellasnearthesurface.Theresultsofanalysisbyemployingthisschemerevealthereasonresponsibleforthesystematicforecasterrorsofthezonalmeanwindinthemodelandthepossiblewayofimprovingit.Itisalsoshownthatnon-accelerationtheoremcanbeusedasanefficienttooltodiagnosethephysicalprocessesofNWPmodels.
出版日期
1995年03月13日（中国期刊网平台首次上网日期，不代表论文的发表时间）
