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DOCU-CLIM:一个用于气候重建的全球纪录气候数据集
Angela-Maria Burgdorf1,2, Stefan Brönnimann3,4, George Adamson5
1Institute of Geography, University of Bern, Bern, Switzerland.
Scientific data
|June 23, 2023
概括
这项研究介绍了DOCU-CLIM,这是全球首个文档气候记录的全球集合. 这些历史文件为过去的温度,降水和风变化提供了宝贵的见解,特别是在仪器数据稀缺的地方.
科学领域:
- 气候学 气候学 气候学
- 历史研究 历史研究
- 数据科学数据科学数据科学
背景情况:
- 从日记和报纸等历史记录中获得的文献气候数据,已被用于重建当地和区域气候.
- 缺乏这样的纪录气候时间序列的全面全球数据集,限制了它们在大规模气候重建中的使用.
- 现有的气候重建通常依赖于仪器数据和古气候代理数据,这些数据具有空间和时间的限制.
研究的目的:
- 编制第一个全球性的,多变量记录记录的文献气候记录集合,名为DOCU-CLIM.
- 评估文献气候记录的可靠性和潜力,以进行历史气候重建.
- 使用代理预测模型评估文档气候数据和气候领域之间的相关性.
主要方法:
- 汇编了621个已出版和未出版的纪录气候时间系列,涵盖温度,降水和风速变化.
- 开发和应用代理前模型来预测来自气候领域的文献观测.
- 评估模型性能使用重叠的历史时期进行相关性分析.
主要成果:
- 在文献气候记录和气候场之间观察到强烈的相关性,特别是在温度敏感系列中.
- 降水敏感序列显示的相关性有点较低,但显著.
- 这项研究表明,文档记录作为气候研究的有价值数据来源的巨大潜力.
结论:
- 文献气候记录,如DOCU-CLIM数据集所示,是理解过去气候变化的重要数据来源.
- 这些记录对于早期仪器数据和古气候代理数据所代表的区域和季节尤其重要.
- 这些发现支持将文档气候数据整合到全球气候重建工作中.
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