台风过程研究中四维资料同化方法的探讨及应用
The study of typhoon process:discussion and application of four-dimensional data assimilation
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摘要: 与把任意分布的观测值通过空间和时间插值分析到网格点的方法相比较,结合动力关系分析大气场问题的方法,其优势十分明显.Charney等[1]建议在一个能提供时间连续和动力耦合的模式预报方程中,有机地结合现在和过去的资料.后来这个概念被发展为众所周知的四维资料同化(FDDA).起初,四维资料同化主要应用于全球尺度,现在,无论是动力初始化还是作为一个分析或者研究工具,四维资料同化都有效地应用在中尺度模式上[2,3].
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Key words:
- mesoscale numerical model /
- four-dimensional data assimilation /
- typhoon
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CHARNEY J G.Use of incomplete historical data to infer the present state of the atmosphere[J].J Roy Meteor Soc,1969,103:225-245. HOKE J E,ANTHES R A.The initialization of numerical models by a dynamical initialization technique[J].Mon Wea Rev,1976,104:1 551-1 556. PIELKE R A.中尺度气象模拟[M].张杏珍,杨长新译.北京:气象出版社,1990.135-258. ANTHES R A.Data assimilation and initialization of hurricane prediction models[J].J Atmos Sci,1974,31:702-719. DAVIES H C,TURNER R E.Updating prediction models by dynamical relaxation:an examination of the technique [J].Quart J Roy Meteor S o c,1977,103:225-245. GRELL G A,DUDHIA J,STAUFFER D R.A description of the fifth-Generation Penn State/NCAR Mesoscale model(MMS).NCAR Technical Note,NCAR/TN-398+STR[Z].1994.117. STAUFFER D R,NELSON L S.Use of four-dimensional data assimilation in a limited-area mesoscale model.Part Ⅰ Experiments with synoptic-scale data[J].Mon Wea Rev,1990,118:1 250-1 277. 世界气象组织编.全球热带气旋预报指南[M].裘国庆,方维模译.北京:气象出版社,1995.168-172. STAIFFER D R,NELSON L S.Use of four-dimensional data assimilation in a limited-area mesoscale model.Part Ⅱ Effects of data assimilation within the planetary boundary layer[J].Mon Wea Rev,1990,119:734-754. WANG W,WARNER T T.Use of four-dimensional data assimilation by Newtonian relaxation and latent heat forcing to improve a mesoscale-model precipitation forecast:a case study[J].Mon Wea Rev,1988,116:2 593-2 613.
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