Projections of severe weather and the impacts on transmission line towers in Santa Catarina, Brazil, under future scenarios of global climate change

Transmission line towers are highly exposed to weather hazards. In southern Brazil, several damages to transmission lines have been reported due to severe weather events. Climate change projections indicate that the frequency and magnitude of extreme events may increase, making planning and adaptat...

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Main Authors: Nicole Costa Resende Ferreira, Priscila Silva Tavares, Gustavo Sueiro Medeiros, Leonardo Nascimento Ferreira, Pablo Borges, Sin Chan Chou, Maria Laura Rodrigues
Format: Article
Language:English
Published: Instituto de Pesquisas Ambientais - SIMA 2023-12-01
Series:Derbyana
Subjects:
Online Access:https://revistaig.emnuvens.com.br/derbyana/article/view/808
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author Nicole Costa Resende Ferreira
Priscila Silva Tavares
Gustavo Sueiro Medeiros
Leonardo Nascimento Ferreira
Pablo Borges
Sin Chan Chou
Maria Laura Rodrigues
author_facet Nicole Costa Resende Ferreira
Priscila Silva Tavares
Gustavo Sueiro Medeiros
Leonardo Nascimento Ferreira
Pablo Borges
Sin Chan Chou
Maria Laura Rodrigues
author_sort Nicole Costa Resende Ferreira
collection DOAJ
description Transmission line towers are highly exposed to weather hazards. In southern Brazil, several damages to transmission lines have been reported due to severe weather events. Climate change projections indicate that the frequency and magnitude of extreme events may increase, making planning and adaptation of the transmission system exposure even more critical. In this work, we propose a severe weather index (SWI) as a proxy for detecting severe storms that can potentially result in extreme weather events. The SWI combines thresholds of instability indices based on observed severe events around the transmission tower-line systems. These indices were calculated using the downscaling by the Eta model at 20 km resolution of three global climate model projections and at 5 km of one global climate model for the historical period and the near future. The results show that the SWI captures the severe storms observed in the region. All downscaling projections agree with the increase of extreme weather events in the near future and the expansion of vulnerable areas. The constructed index can be employed to assess the risks and to plan the power transmission system better.
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spelling doaj.art-fbe307b9a5ca411499db3e0494d5a44c2023-12-18T15:46:50ZengInstituto de Pesquisas Ambientais - SIMADerbyana2764-14652023-12-014410.14295/derb.v44.808Projections of severe weather and the impacts on transmission line towers in Santa Catarina, Brazil, under future scenarios of global climate changeNicole Costa Resende FerreiraPriscila Silva TavaresGustavo Sueiro MedeirosLeonardo Nascimento FerreiraPablo BorgesSin Chan ChouMaria Laura Rodrigues Transmission line towers are highly exposed to weather hazards. In southern Brazil, several damages to transmission lines have been reported due to severe weather events. Climate change projections indicate that the frequency and magnitude of extreme events may increase, making planning and adaptation of the transmission system exposure even more critical. In this work, we propose a severe weather index (SWI) as a proxy for detecting severe storms that can potentially result in extreme weather events. The SWI combines thresholds of instability indices based on observed severe events around the transmission tower-line systems. These indices were calculated using the downscaling by the Eta model at 20 km resolution of three global climate model projections and at 5 km of one global climate model for the historical period and the near future. The results show that the SWI captures the severe storms observed in the region. All downscaling projections agree with the increase of extreme weather events in the near future and the expansion of vulnerable areas. The constructed index can be employed to assess the risks and to plan the power transmission system better. https://revistaig.emnuvens.com.br/derbyana/article/view/808Energy sectorRegional climate changeEta ModelInstability indices
spellingShingle Nicole Costa Resende Ferreira
Priscila Silva Tavares
Gustavo Sueiro Medeiros
Leonardo Nascimento Ferreira
Pablo Borges
Sin Chan Chou
Maria Laura Rodrigues
Projections of severe weather and the impacts on transmission line towers in Santa Catarina, Brazil, under future scenarios of global climate change
Derbyana
Energy sector
Regional climate change
Eta Model
Instability indices
title Projections of severe weather and the impacts on transmission line towers in Santa Catarina, Brazil, under future scenarios of global climate change
title_full Projections of severe weather and the impacts on transmission line towers in Santa Catarina, Brazil, under future scenarios of global climate change
title_fullStr Projections of severe weather and the impacts on transmission line towers in Santa Catarina, Brazil, under future scenarios of global climate change
title_full_unstemmed Projections of severe weather and the impacts on transmission line towers in Santa Catarina, Brazil, under future scenarios of global climate change
title_short Projections of severe weather and the impacts on transmission line towers in Santa Catarina, Brazil, under future scenarios of global climate change
title_sort projections of severe weather and the impacts on transmission line towers in santa catarina brazil under future scenarios of global climate change
topic Energy sector
Regional climate change
Eta Model
Instability indices
url https://revistaig.emnuvens.com.br/derbyana/article/view/808
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