Produção Nacional
RELAÇÕES ENTRE QUEIMADAS URBANAS E CONDIÇÕES METEOROLÓGICAS EM CUIABÁ/MT, BRASIL
2014; UNIVERSIDADE FEDERAL DE SANTA MARIA; Volume: 36; Issue: 3 Linguagem: Inglês
10.5902/2179460x11892
ISSN2179-460X
AutoresNadja Gomes Machado, Francisco Carlos Paiva da Silva, Marcelo Sacardi Bíudes,
Tópico(s)Fire effects on ecosystems
ResumoThe establishment of urban fires prevention policies can be defined from studies about its causes. Urban fires are aggravated by specific weatherconditions, such as lack of precipitation, high wind speed and low relative humidity, besides it has been related to human activities. The numberof fires in the city of Cuiabá - MT is high during dry season, which affect the health of the population. Thus, the objective of this study was (i)assess the seasonality of fires attended by the Fire Department and the burnings obtained from satellite imagery; (ii) calculate the Monte Alegre(FMA) and Altered Monte Alegre (FMA+) Formulas; and (iii) correlate fires, burnings, FMA, FMA+, air temperature and rainfall between 2005and 2009 in Cuiabá/MT. For this, we used the database of the number of occurrences of urban fires attended by the Fire Department Cuiaba -MT obtained from Centro Integrado de Operações de Segurança Pública de Mato Grosso (CIOSP) and the number of burnings obtained fromDivisão de Geração de Imagens (DGI) of the Instituto Nacional de Pesquisas Espaciais (INPE) between January 2005 and December 2009.The FMA and FMA+ indices were calculated using the daily precipitation and wind speed and relative humidity measured at 13 o’clock on theCentro Integrado de Defesa Aérea e Controle de Tráfego Aéreo (CINDACTA I), located in Aeroporto Internacional Marechal Cândido Rondon.The precipitation, air temperature and relative humidity varied annually and seasonally with higher values during the rainy season. Thelargest number of fires and burnings occurred in the late dry season (August and September), due to low rainfall and relative humidity. TheFMA and FMA+ indices were sensitive to weather variations and correlated strongly with the number of fires and burnings without lag, withhigher values during the dry season. The FMA and FMA+ indexes can be used to predict future occurrence of fires in Cuiabá-MT.
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