@Article{RosaSRFFBHD:2023:WiHeWa,
               author = "Rosa, Cinara Ewerling da and Stefanello, Michel and Reis, Nicolle 
                         Cordeiro dos and Facco, Douglas Stefanello and Ferraz, Simone 
                         Teleginski and Boiaski, Nathalie Tissot and Herdies, Dirceu Luis 
                         and Degrazia, Gervasio Annes",
          affiliation = "{Instituto Federal Farroupilha} and {Universidade Federal do Rio 
                         Grande do Sul (UFRGS)} and {Universidade Federal do Rio Grande do 
                         Sul (UFRGS)} and {Universidade Federal do Rio Grande do Sul 
                         (UFRGS)} and {Universidade Federal do Rio Grande do Sul (UFRGS)} 
                         and {Universidade Federal do Rio Grande do Sul (UFRGS)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade Federal do Rio Grande do Sul (UFRGS)}",
                title = "Winter heat waves characteristics associated with downslope 
                         windstorm in south Brazil",
              journal = "International Journal of Climatology",
                 year = "2023",
               volume = "43",
               number = "13",
                pages = "5951--5965",
                month = "July",
             keywords = "downslope windstorm, sheat wave, regional meteorology, topography 
                         effect, Vento Norte.",
             abstract = "The air temperature anomaly was analysed in 16 consecutive winters 
                         from 2004 to 2019 in southern Brazil using reanalysis data and 
                         hourly atmospheric observations. In this study, 13 heat wave (HW) 
                         episodes were identified using the percentile methodology. All 
                         identified episodes are associated with the occurrence of a 
                         downslope windstorm known as Vento Norte (VNOR; Portuguese for 
                         North Wind). The VNOR is characterized by a sharp increase in air 
                         temperature combined with constant, strong, gusty winds from the 
                         north and a drop in relative humidity. The average duration was 
                         about 5\ days for HW and 18\ h for VNOR being than 
                         in 59.5% of the HW hours, the VNOR windstorm was also detected. 
                         The main atmospheric variables were compared during the periods of 
                         winter, HW and the VNOR windstorm. The analysis showed that HW 
                         alters local weather and climate conditions, with the more 
                         pronounced features associated with the VNOR flow. A more detailed 
                         investigation comparing the atmospheric variables collected north 
                         and south of an abrupt change in terrain altitude (400\ m) 
                         revealed that the main cause of the amplification of the 
                         atmospheric variable anomalies in the centre of the state of Rio 
                         Grande do Sul was the simultaneous occurrence of HW and VNOR.",
                  doi = "10.1002/joc.8182",
                  url = "http://dx.doi.org/10.1002/joc.8182",
                 issn = "0899-8418",
             language = "en",
           targetfile = "Intl Journal of Climatology - 2023 - Rosa - Winter heat waves 
                         characteristics associated with downslope windstorm in south.pdf",
        urlaccessdate = "01 maio 2024"
}