大气科学2018，Vol.42Issue(3)：677-695,19.DOI:10.3878/j.issn.1006-9895.1711.17264
粒子滤波同化在厄尔尼诺—南方涛动目标观测中的应用
Application of Particle Filter Assimilation in the Target Observation for El Ni?o–Southern Oscillation
摘要
Abstract
Considering the limitation of particle filter-target observation approach, the present study proposes a new target observation approach that can overcome this limitation. This new approach is then applied to the study of the predictability of El Ni?o-Southern Oscillation and reveals the sensitive areas for targeting observation associated with eastern- and central-Pacific El Ni?o events. By assimilating the target observations, the prediction uncertainties for the two types of El Ni?o events are significantly reduced. This result confirms that the sensitive areas revealed by the new approach, compared with other areas, can play a much more important role in improving the El Ni?o forecast skill.关键词
厄尔尼诺—南方涛动/粒子滤波/目标观测Key words
El Niño-Southern Oscillation/Particle filter/Target observation分类
天文与地球科学引用本文复制引用
段晚锁,封凡,侯美夷..粒子滤波同化在厄尔尼诺—南方涛动目标观测中的应用[J].大气科学,2018,42(3):677-695,19.基金项目
国家自然科学基金项目41525017、41690124,"全球变化与海气相互作用"专项GASI-IPOVAI-06,成都信息工程大学引进人才科研启动项目KYTZ201736 National Natural Science Foundation of China(Grants 41525017 and 41690124),National Program on Global Change and Air-Sea Interaction(Grant GASI-IPOVAI-06),Scientific Research Foundation of Chengdu University of Information Technology(Grant KYTZ201736) （Grants 41525017 and 41690124）
