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Comportamento da Precipitação Pluviométrica nas Porções Alta e Média da Bacia Hidrográfica do Rio Canoas/SC: Análise Temporal de 1986-2016 (Rainfall distribution in the upper and middle portions of the Canoas Watershade / SC: 1986-2016 Temporal analysis)
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lemos, Andrea Cristina Conceição Saldanha, Dejanira Luderitz Mafra, Álvaro Luiz |
| Copyright Year | 2018 |
| Abstract | Este estudo identificou os principais sistemas atmosfericos que influenciam nas precipitacoes pluviometricas no alto e medio trecho da bacia hidrografica do rio Canoas durante os anos de 1986-2016. Foram manipulados dados anuais e mensais de 15 estacoes pluviometricas localizadas em quatorze municipios da regiao central do estado de Santa Catarina (Brasil). Os dados de medias pluviometricas foram obtidos das series de dados historicos e espacializadas atraves do metodo de interpolacao IDW. Por ser uma regiao de transicao atmosferica sofre influencia de diversos fatores ambientais. Na area de estudo foi possivel observar a influencia de tres sistemas atmosfericos principais na precipitacao: o sistema de moncao, o qual eleva os valores da precipitacao no leste da area de estudo principalmente nos municipios de Urubici e Bom Retiro; os Complexos Convectivos de Mesoescala (CCMs), que elevam os padroes de precipitacao no centro-oeste principalmente nos meses de primavera; e por fim as frentes vindas do sul, as quais influenciam no total das precipitacoes nos meses de inverno. A espacializacao desses padroes e compreensao das dinâmicas presentes na area sao importantes para o monitoramento e identificacao de anomalias no comportamento pluviometrico da regiao, auxiliando tanto na agricultura como no planejamento/aproveitamento territorial. A B S T R A C T This study identified the main atmospheric systems that influence rainfall in the upper and middle portions of the Canoas river watershed during the years 1986-2016. Annual and monthly data were analyzed from 15 pluviometric stations located in fourteen municipalities in the central region of Santa Catarina state (Brazil). The average rainfall data were obtained from the historical data series and spatialized using the IDW interpolation method. Being a region of atmospheric transition, it is influenced by several environmental factors. In the study area, it was possible to observe the influence of three main atmospheric systems on the precipitation: the monsoon system, which increases precipitation values in the east side of the study area, mainly in the municipalities of Urubici and Bom Retiro; the Mesoscale Convective Complexes (CCMs), which raises rainfall patterns in the midwest region, especially in the spring months; and finally the southern fronts, which influences the total precipitation in the winter months. The spatialization of these patterns and understanding of the dynamics present in the area are important for the monitoring and identification of anomalies in the pluviometric distribution in the region, helping both in agriculture and in the planning / territorial utilization. Keywords: watershed - Canoas River – precipitation - rainfall distribution. |
| File Format | PDF HTM / HTML |
| DOI | 10.26848/rbgf.v11.4.p1264-1274 |
| Alternate Webpage(s) | https://periodicos.ufpe.br/revistas/rbgfe/article/download/234365/30567 |
| Alternate Webpage(s) | https://doi.org/10.26848/rbgf.v11.4.p1264-1274 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
