收稿日期: 2022-09-17
修回日期: 2022-10-25
网络出版日期: 2022-12-16
基金资助
国家自然科学基金项目“我国极端温度事件的中期天气可预报性和集合概率预报方法研究”(41875138);“我国东部夏季降水的集合预报分类释用与概率订正方法研究”(42175015)
Research, Development, and Application of the Unified Post-Processing System for the CMA-GEPS/REPS Ensemble Prediction
Received date: 2022-09-17
Revised date: 2022-10-25
Online published: 2022-12-16
Supported by
the National Natural Science Foundation of China “Medium-range weather predictability and ensemble-based probabilistic forecasting method of extreme temperature event in China”(41875138);“Classification interpretation and probability correction methods of ensemble forecasting of summer rainfall in the eastern China”(42175015)
集合预报是数值天气预报中发展最快的方向之一,已成为当前预报预测业务准确率和产品丰富性的重要保障。过去30年间,伴随着国际上集合数值预报科学研究的快速发展,业务集合预报技术和系统取得了长足进步。作为集合预报链条中面向下游用户的信息输出端,后处理系统已经成为大规模数据生成和产品制作功能一体化、多层次预报分析方法和技术高度集约化的综合平台,在发挥集合预报优势方面扮演着关键角色。首先回顾了国内外集合预报后处理系统发展历程以及后处理技术发展趋势和走向,归纳并阐述了集合预报后处理系统的主要功能。进一步详细介绍了中国气象局全球/区域集合预报业务系统的集合预报统一后处理系统针对上述各方面主要功能的设计思路、结构框架、关键技术和常规产品等研发进展情况,并重点阐释了如何充分利用该集合预报业务系统实时大样本集合预报数据信息开发的极端预报指数、热带大气季节内振荡、西北太平洋副热带高压和南亚高压等多样化新产品及其在业务中的实际应用。总体来看,集合预报后处理将成为充分发挥集合预报准确度高、信息量大以及社会效益显著等优势的研发新方向。
关键词: CMA-GEPS/REPS; 集合预报; 统一后处理; 业务系统; 预报产品
高丽 , 郑嘉雯 , 招佐森 , 罗月琳 , 任鹏飞 , 姚国华 . 中国气象局数值天气集合预报统一后处理系统的研发与应用[J]. 地球科学进展, 2022 , 37(12) : 1211 -1222 . DOI: 10.11867/j.issn.1001-8166.2022.096
Ensemble prediction, one of the most rapid developments in numerical weather prediction, has presently become a vital basis for accurate forecasting and assessment of product abundance. In the past three decades, accompanied by the rapid developments in prediction research and techniques, a significant progress has been made in operational technology and systems for ensemble prediction. As the output end of the information facing downstream users in the ensemble prediction chain, the post-processing system has been an integrated platform for the generation of numerous ensemble data, the unification of product-making functions, and the intensification of multilevel forecasting approaches and techniques. In this study, a comprehensive local-to-global review was first conducted for the historical development, current stage, and future direction of the post-processing system and technology for ensemble prediction. Second, the following seven main functions of the post-processing system were summarized:
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