海洋气象观测系统在热带气旋资料同化中的应用
1. 南京信息工程大学,南京 210044;
2. 中国气象局广州热带海洋气象研究所,广州 510080
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摘要
在分析南海海洋气象观测现状和发展规划的基础上,发现有必要发展合适的资料同化技术,提高资料利用效率,才能克服海洋气象资料相对缺乏来提升数值预报水平。利用多尺度/分块逐批资料同化技术,进行热带气旋资料同化试验。结果表明:多尺度/分块逐批资料同化技术能够适应具有多尺度特征的热带气旋资料同化,较好地满足热带气旋资料同化对流依赖背景误差协方差同化技术的要求,能够较合理高效地利用海洋气象观测资料。基于多尺度/分块逐批资料同化技术,加强海洋气象观测系统的应用,是形成高质量热带气旋初值环流的一种有效途径。
关键词
海洋气象观测 ; 资料利用效率 ; 多尺度/分块逐批资料同化 ; 热带气旋初值环流
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