Spatio-Temporal Modeling for Record-Breaking Temperature Events in Spain

• 成果类型: Article
• 署名作者: Castillo-Mateo, Jorge; Gelfand, Alan E.; Gracia-Tabuenca, Zeus; Asin, Jesus; Cebrian, Ana C.
• 署名单位: University of Zaragoza; Duke University
• 刊物名称: JOURNAL OF THE AMERICAN STATISTICAL ASSOCIATION
• ISSN/ISSBN: 0162-1459
• DOI: 10.1080/01621459.2024.2427430
• 发表日期: 2025
• 页码: 645-657
• 关键词: extreme; binary

摘要

Record-breaking temperature events are now very frequently in the news, viewed as evidence of climate change. With this as motivation, we undertake the first substantial spatial modeling investigation of temperature record-breaking across years for any given day within the year. We work with a dataset consisting of over 60 years (1960-2021) of daily maximum temperatures across peninsular Spain. Formal statistical analysis of record-breaking events is an area that has received attention primarily within the probability community, dominated by results for the stationary record-breaking setting with some additional work addressing trends. Such effort is inadequate for analyzing actual record-breaking data. Resulting from novel and detailed exploratory data analysis, we propose rich hierarchical conditional modeling of the indicator events which define record-breaking sequences. After suitable model selection, we discover explicit trend behavior, necessary autoregression, significance of distance to the coast, useful interactions, helpful spatial random effects, and very strong daily random effects. Illustratively, the model estimates that global warming trends have increased the number of records expected in the past decade almost 2-fold, 1.93 (1.89,1.98) , but also estimates highly differentiated climate warming rates in space and by season. Supplementary materials for this article are available online, including a standardized description of the materials available for reproducing the work.