METEOROLOGICAL EVENTS ASSOCIATED WITH THE EXPLOSIVE CYCLONE OCCURRED IN JUNE 2020 AND THEIR IMPACTS IN THE STATE OF SANTA CATARINA

Authors

Abstract

Extratropical cyclones are one of the atmospheric systems that most cause changes in the weather in the regions where they act. In some situations, these systems have a penetration rate of ~24 hPa/24 h, which gives them the status of explosive cyclones. Between late June and early July 2020, a cyclone, which reached explosive status, had its genesis between Rio Grande do Sul and Uruguay and rapidly moved to the ocean. In this context, the objective of the study is to describe the life cycle of the extratropical cyclone and the atmospheric systems associated with it, which caused a lot  of environmental and material damage and even the death of at least 12 people in the State of Santa Catarina. (SC). Reanalysis data were used to describe the cyclone configuration, while news published by the media and data provided by the civil defense of that State were used to describe the impacts in the State of SC. Among the results, it is
highlighted that the cyclone had its genesis associated with a trough at medium/high levels of the atmosphere and that it had a deepening rate of 36 hPa in 24 hours, which gave it the characteristic of an explosive cyclone. The cold frontal branch of this system, which had its center over the ocean, acted on SC helping to form other damaging meteorological systems in the region.

Author Biographies

Leandro Fortunato Faria, Universidade Federal de Itajubá

Meteorologist graduated from the Federal University of Itajubá - UNIFEI, Master's student and CAPES scholarship holder in Environment and Water Resources from the Federal University of Itajubá - UNIFEI. Intern at the Center for Studies and Weather Forecasting of Minas Gerais (CEPREMG), being responsible for the weather forecast for the city of Itajubá-MG, having familiarity with the programming languages: FORTRAN, MATLAB, GrADS and CDO (Climate Data Operators), Python and  R. Worked at the Aerospace Institute (IAE) - DEPARTMENT OF AEROSPACE SCIENCE AND TECHNOLOGY (DCTA) as a researcher with a CNPq grant.

Michelle Simões Reboita, Federal University of Itajubá

Graduated in Geography (Bachelor, 2001) and Master in Ocean Engineering (2004) from the Federal University of Rio Grande Foundation - FURG; PhD in Meteorology from the University of São Paulo - USP (2008). She did two postdoctoral studies in Meteorology at USP, being a sandwich with the University of Vigo (Spain). She was a junior associate at the Abdus Salam International Center for Theoretical Physics in Italy between 2013 and 2016 and from 2018 to the present she is a regular associate. She is a professor at the Natural Resources Institute (IRN) of the Federal University of Itajubá (UNIFEI), advisor of the Master's program in Environment and Water Resources at UNIFEI, coordinator of the Research and Extension group in Socio-environmental Policies (GPEPSA-UNIFEI-CNPQ) and researcher at the IRN, at the Climate Studies Group (GrEC) at the USP Institute of Astronomy, Geophysics and Atmospheric Sciences and at the USP Climate Change Research Support Center (INCLINE). He works in different lines of research and extension with national and international groups (for example, Spain, Italy, Sweden and Pakistan). Has experience in coordinating projects financed by the main funding agencies in the country as well as in research and technological extension projects funded by the electricity sector. She was coordinator of the Atmospheric Sciences course at UNIFEI from 2015 to 2017 and deputy coordinator from 2018 to March 2020; member of the Advisory Chamber of Natural Resources, Environmental Sciences and Technologies (CRA) of the Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG) from 2016 to 2018. Since 2017 she has been assistant editor of the Brazilian Journal of Meteorology, since September 2020 is a regional consultant for the World Climate Research Program (WCRP) and since October 2021 has been a member of the WCRP Americas monsoon group. She has experience in the field of Geosciences, with an emphasis on Synoptic Meteorology, Climatology and Climate Modeling. (Source: Lattes Curriculum)

Downloads

Published

2023-02-22

Issue

Vol. 48 No. 1 (2023)

Section

Article

License

The authors maintain the copyright and grant GEOGRAFIA the right of first publication, with the articles simultaneously licensed under the Creative Commons BY 4.0 License, which allows sharing and adapting the articles for any purpose, as long as appropriate credits and provisions of image rights, privacy or moral rights. Other legal attributions can be accessed at: https://creativecommons.org/licenses/by/4.0/legalcode.en.

 

Geography, Rio Claro, SP, Brazil - eISSN 1983-8700 is licensed under the Creative Commons BY 4.0 License.