Introduction to the SPARC Reanalysis Intercomparison Project (S-RIP) and overview of the reanalysis systems
Introduction to the SPARC Reanalysis Intercomparison Project (S-RIP) and overview of the reanalysis systems
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DOI：
10.5194/acp-17-1417-2017
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发表时间：
2017-01-31
影响因子：
6.3
通讯作者：
Zou, Cheng-Zhi
中科院分区：
文献类型：
--
作者：
Fujiwara, Masatomo;Wright, Jonathon S.;Zou, Cheng-Zhi
气候研究界使用大气再分析数据集来了解大气中的各种过程和变异性，但对于相同的诊断，不同的再分析可能会得出非常不同的结果。平流层-对流层过程及其在气候中的作用(S-对流层再分析相互比较项目)是一项利用各种关键诊断方法比较再分析数据集的协调活动。该项目的目标是查明再分析之间的差异并了解其根本原因，就各种再分析产品在科学研究中的适当使用提供指导，特别是与南太平洋区域研究中心相关的产品，并通过在再分析中心和数据用户之间建立协作联系，促进今后改进再分析产品。该项目主要侧重于再分析之间的差异，但适当时也包括业务分析和将再分析与观察结果进行比较的研究。重点是对流层上层、平流层和中间层下部的诊断。本文总结了S-RIP活动的动机和目标，并广泛回顾了作为本次活动重点的再分析数据集的关键技术方面。本刊的特刊“S再分析比较项目”旨在收集与S再分析比较项目相关的研究，为出版计划中的两份(中期和完整)S-区域比较项目报告做准备。
The climate research community uses atmospheric reanalysis data sets to understand a wide range of processes and variability in the atmosphere, yet different reanalyses may give very different results for the same diagnostics. The Stratosphere-troposphere Processes And their Role in Climate (SPARC) Reanalysis Intercomparison Project (S-RIP) is a coordinated activity to compare reanalysis data sets using a variety of key diagnostics. The objectives of this project are to identify differences among reanalyses and understand their underlying causes, to provide guidance on appropriate usage of various reanalysis products in scientific studies, particularly those of relevance to SPARC, and to contribute to future improvements in the reanalysis products by establishing collaborative links between reanalysis centres and data users. The project focuses predominantly on differences among reanalyses, although studies that include operational analyses and studies comparing reanalyses with observations are also included when appropriate. The emphasis is on diagnostics of the upper troposphere, stratosphere, and lower mesosphere. This paper summarizes the motivation and goals of the S-RIP activity and extensively reviews key technical aspects of the reanalysis data sets that are the focus of this activity. The special issue "The SPARC Reanalysis Intercomparison Project (S-RIP)" in this journal serves to collect research with relevance to the S-RIP in preparation for the publication of the planned two (interim and full) S-RIP reports.