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IMPACTO DO EL NIÑO E LA NIÑA NA PRECIPITAÇÃO MÁXIMA DIÁRIA DO ESTADO DO MATO GROSSO DO SUL (Impact of El Niño and La Niña in the maximum daily rainfall of the state of Mato Grosso do Sul)
| Content Provider | Semantic Scholar |
|---|---|
| Author | Marcuzzo, Francisco Fernando Noronha Oliveira, Nayhara De Lima |
| Copyright Year | 2012 |
| Abstract | O presente trabalho teve como objetivo correlacionar a variacao da precipitacao maxima diaria com a intensidade do Indice El Nino(a) no Estado do Mato Grosso do Sul. Utilizaram-se dados de 37 estacoes pluviometricas com 30 anos de dados e 55 estacoes com dados variando de 20 a 29 anos, sendo que toda serie historica esta entre os anos de 1977 a 2006. Os dados mensais de intensidade dos fenomenos climaticos El Nino e La Nina foram obtidos do Servico Climatologico Nacional dos Estados Unidos (NOAA - National Weather Service), os quais foram relacionados com os dados de precipitacao maxima diaria a fim de descrever o caminhamento da evolucao das precipitacoes sob a influencia dos fenomenos. No periodo de 1977 a 2006 o Indice Nino(a) mensal medio variou entre -1,1°C e 1,3°C, variacoes consideradas moderadas, com algumas variacoes consideradas fortes nos anos de 1982 (2,3°C), 1983 (2,3°C), 1988 (-1,9°C), 1991 (1,6°C), 1992 (1,8°C), 1997 (2,5°C), 1998 (2,3°C), 1999/2000 (-1,6°C) e 2002 (1,5°C). No geral as precipitacoes maximas diarias extremas de cada ano cresceram nos episodios de El Nino e pouco variaram nos episodios de La Nina. Assim conclui-se que os fenomenos El Nino e La Nina causam efeitos evidentes nas precipitacoes do Estado de Mato Grosso do Sul, contudo o fenomeno El Nino e mais impactante do que o fenomeno La Nina nas precipitacoes do Estado de Mato Grosso do Sul. Palavras-chave: temperatura do oceano Pacifico; ENOS; chuva maxima diaria. ABSTRACT The present study was to correlate the variation of the maximum daily rainfallwith El Nino intensity index in the state of Mato Grosso do Sul used data from 37 stationswith 30 years of rainfall data and 55 stations with data ranging from 20 to 29 years, andthroughout this series between the years 1977 to 2006. The monthly data on the intensity of weather phenomena El Nino and La Nina were obtained from the National Weather Service of the United States (NOAA – National Weather Service), which were related to the maximum daily precipitation data in order to describe the evolution of the pathwayprecipitation under the influence of phenomena. In the period 1977 to 2006 the average monthly Nino index ranged between -1,1°C and 1,3°C, variations considered moderate, with some variations considered strong in the years 1982 (2.3°C), 1983 (2.3°C), 1988 (-1.9°C), 1991 (1.6°C), 1992 (1,8°C), 1997 (2.5°C), 1998 (2.3°C), 1999/2000 (-1.6°C) and 2002 (1.5°C). In general, the maximum daily rainfall of each year grew extremeepisodes of El Nino and varied little in the episodes of La Nina. It is concluded that the El Nino and La Nina rainfall causing evident effects on the state of Mato Grosso do Sul, but El Nino is more powerful than the La Nina rainfall in the State of Mato Grosso do Sul. Keywords: temperature of the Pacific ocean; ENOS; maximum daily rainfall. RESUME La presente etude etait de correler les variations de la pluviometrie journaliere maximale avec un indice d'intensite Nino dans l'Etat du Mato Grosso do Sul utilise les donnees de 37 stations avec 30 annees de donnees pluviometriques et 55 stations avec des donneesallant de 20 a 29 annees, et tout au long de cette serie entre les annees 1977 a 2006.Les donnees mensuelles sur l'intensite des phenomenes meteorologiques des phenomenes El Nino et La Nina ont ete obtenues Du National Weather Service des Etats-Unis (NOAA - National Weather Service), qui etaient lies a des donnees maximale de precipitations quotidiennes afin de decrire l'evolution de la voie precipitations sous l'influence de phenomenes. Dans La periode de 1977 a 2006, la moyenne indice mensuelvariait entre Nino 1,1°C et 1,3°C, des variations considere comme modere, avec quelques variations considere comme solide dans les annees 1982 (2,3°C), 1983 (2,3°C). 1988 (-1,9°C), 1991 (1,6°C), 1992 (1,8°C), 1997 (2,5°C), 1998 (2,3°C), 1999/2000 (-1,6°C) e 2002 (1,5°C). En general, les precipitations maximale quotidiennes de chaque annee est passe des episodes extremes de El Nino et peu variedans les episodes de La Nina. Il est conclu que le phenomene El Nino et La Nina precipitations causant des effets evidents sur l'etat du Mato Grosso do Sul, mais El Ninoest plus puissant que les precipitations de La Nina dans l'Etat du Mato Grosso do Sul. Palabras clave: temperature de l'ocean Pacifique; El Nino; maximum quotidien de pluie. DOI: 10.5654/actageo2012.0613.0011 |
| Starting Page | 193 |
| Ending Page | 206 |
| Page Count | 14 |
| File Format | PDF HTM / HTML |
| DOI | 10.5654/acta.v6i13.630 |
| Volume Number | 6 |
| Alternate Webpage(s) | https://revista.ufrr.br/actageo/article/download/630/913 |
| Alternate Webpage(s) | https://doi.org/10.5654/acta.v6i13.630 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
