文章基本信息

标题：ANALYSIS OF PRECIPITATION AND DRY SPELL IN THE CENTER WESTERN MESOREGION OF PARANÁ STATE, BRAZIL - A SPECIFIC STUDY IN SEPTEMBER 2020
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作者：Nathan Felipe da Silva Caldana ; Leonardo Rodrigues ; Luiz Gustavo Batista Ferreira 等
期刊名称：Caminhos de Geografia
印刷版ISSN：1678-6343
出版年度：2022
卷号：23
期号：86
页码：243-262
DOI：10.14393/RCG238658583
语种：English
出版社：EDUFU
摘要：The occurrences of dry spells are becoming frequent nowadays, in the context of global climate change. Thus, the key objective of this study was to analyze the variability of precipitation and the probability of occurrence of dry spell in the Center-Western Mesoregion of Paraná State, Brazil. As a specific objective, was to analyzed the occurrence extreme dry spell occurrences during September 2020 of the year 2020. For this, maps were used to regionalize the pluviometric heights. Box plot plots and probabilities were created to study regional precipitation behaviour. The annual precipitation in the Mesoregion showed an appropriated annual and monthly distribution, showing positive extract from the CLIMWB. However, the Mesoregion exhibits a significant variability, with months over 500 mm between the rainiest and driest months. The occurrence of dry spell also showed significant values. In August, were verified 60 % probability of dry spell. Reflection of this significant variability occurred in 2020, which with a series of data older than 40 years, showed the driest month in history, much attributed to the current atmospheric circulation with blocks caused by the intense mass of hot air, linked to the recent fires occurrences on the Brazilian Pantanal and Amazon.
关键词：Precipitation ; Climatic risks; Dry spell; Climate change