{"title":"Exploring meteorological droughts' spatial patterns across Europe through complex network theory","authors":"Domenico Giaquinto, W. Marzocchi, Jürgen Kurths","doi":"10.5194/npg-30-167-2023","DOIUrl":null,"url":null,"abstract":"Abstract. In this paper we investigate the spatial patterns and features of meteorological droughts in Europe using concepts and methods derived from complex\nnetwork theory. Using event synchronization analysis, we uncover robust meteorological drought continental networks based on the co-occurrence of\nthese events at different locations within a season from 1981 to 2020 and compare the results for four accumulation periods of rainfall. Each\ncontinental network is then further examined to unveil regional clusters which are characterized in terms of droughts' geographical propagation and\nsource–sink systems. While introducing new methodologies in general climate network reconstruction from raw data, our approach brings out key\naspects concerning drought spatial dynamics, which could potentially support droughts' forecast.\n","PeriodicalId":54714,"journal":{"name":"Nonlinear Processes in Geophysics","volume":" ","pages":""},"PeriodicalIF":2.4000,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nonlinear Processes in Geophysics","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.5194/npg-30-167-2023","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract. In this paper we investigate the spatial patterns and features of meteorological droughts in Europe using concepts and methods derived from complex
network theory. Using event synchronization analysis, we uncover robust meteorological drought continental networks based on the co-occurrence of
these events at different locations within a season from 1981 to 2020 and compare the results for four accumulation periods of rainfall. Each
continental network is then further examined to unveil regional clusters which are characterized in terms of droughts' geographical propagation and
source–sink systems. While introducing new methodologies in general climate network reconstruction from raw data, our approach brings out key
aspects concerning drought spatial dynamics, which could potentially support droughts' forecast.
期刊介绍：
Nonlinear Processes in Geophysics (NPG) is an international, inter-/trans-disciplinary, non-profit journal devoted to breaking the deadlocks often faced by standard approaches in Earth and space sciences. It therefore solicits disruptive and innovative concepts and methodologies, as well as original applications of these to address the ubiquitous complexity in geoscience systems, and in interacting social and biological systems. Such systems are nonlinear, with responses strongly non-proportional to perturbations, and show an associated extreme variability across scales.
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