No Pantanal, a ocorrência de friagem muitas vezes causa prejuízos econômicos e sociais, mas pouco são os estudos que investigaram o fenômeno na região. Portanto, o objetivo deste estudo foi caracterizar os casos gerais e intensos de eventos de friagens na região do Pantanal ocorridos entre 2007 e 2014, e caracterizar o ambiente sinótico do evento mais intenso de friagem. Para tal, utilizou-se dados de boletins do Climanálise, temperatura do ar da cidade de Coxim-MS e reanálises do MERRA-2. Verificou-se 72 eventos de friagens dos casos gerais e 27 casos intensos, sendo a maior frequência o ano de 2010 e os meses de agosto para casos gerias; e 2010 e 2013 e julho e agosto para casos intensos. Ocorreram 9 friagens.ano-1 para caos gerais e 3,4 friagens.ano-1 nos casos intensos. O estudo sinótico mostrou a configuração de um ciclone no oceano Atlântico a leste do sul do continente da América do Sul, relacionado à ampliação da onda baroclínica em altos níveis, com um anticiclone pós-frontal migratório em superfície acompanhado de ômega negativo e gradiente de espessura da camada (camada fria). Pantanal colds, Brazil: Occurrence of general, intense cases and synoptic analysis of the event A B S T R A C TIn the Pantanal, the occurrence of friagem often causes economic and social damages, but few studies have investigated the phenomenon in the region. Therefore, the objective of this study was to characterize the general and intense cases of friary events in the Pantanal region between 2007 and 2014, and to characterize the synoptic environment of the most intense cold event. For that, data of Climanálise bulletins, air temperature of the city of Coxim-MS and reanalysis of MERRA-2 were used. There were 72 friar events of the general cases and 27 intense cases, the highest frequency being the year of 2010 and the months of August for the gerous cases; and 2010 and 2013 and July and August for intense cases. There were 9 friagens.ano-1 for general chaos and 3,3 friagens.ano-1 in intense cases. The synoptic studys howed the configuration of a cyclone in th e Atlantic Oceaneastof the South American continent, related tothe amplification of the baroclinic waveat high levels, with a migratory post-frontal anticyclone on the surface accompanied by omega negative and thickness gradient of the layer (cold layer).Keywords: frontal system, air temperature, air polar, climatology.
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