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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
02/07/2018 |
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Data da última atualização: |
02/07/2018 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
GONÇALVES, F. N.; BACK, A. J. |
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Título: |
Índice de anomalia de chuva para o município de Governador Celso Ramos, SC. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
In: SIMPÓSIO BRASILEIRO DE RECURSOS HÍDRICOS, 22., 2017, Florianópolis. Anais... Porto Alegre: ABRH, 2017. |
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Idioma: |
Português |
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Conteúdo: |
O estudo de eventos extremos decorrentes do excesso ou da falta de chuva tem auxiliado na descoberta de metodologias mais eficientes e capazes de proporcionar aos órgãos gestores municipais ações mitigatórias com vistas a reduzir os impactos decorrentes destes eventos. O objetivo deste trabalho é analisar o índice de anomalia de chuva como um indicador climático da variabilidade pluviométrica no município de Governador Celso Ramos/SC. Foi usada a série de dados pluviométricos diários de 1976 a 2016, obtida da Agência Nacional de Águas (ANA). Os resultados apontaram que o IAC anual variou entre -2,74 (ano de 1990) e 2,64 (ano de 2008). Além disso, metade do período estudado apresentou maiores recorrências de anomalias negativas, enquanto que a segunda metade apresentou mais anomalias positivas. De um modo geral, o IAC demonstrou ser uma importante ferramenta na análise das precipitações anuais em Governador Celso Ramos para a identificação de anos secos e chuvosos. |
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Palavras-Chave: |
precipitação; seca; séries climáticas. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 01554naa a2200169 a 4500
001 1127377
005 2018-07-02
008 2017 bl uuuu u00u1 u #d
100 1 $aGONÇALVES, F. N.
245 $aÍndice de anomalia de chuva para o município de Governador Celso Ramos, SC.$h[electronic resource]
260 $c2017
520 $aO estudo de eventos extremos decorrentes do excesso ou da falta de chuva tem auxiliado na descoberta de metodologias mais eficientes e capazes de proporcionar aos órgãos gestores municipais ações mitigatórias com vistas a reduzir os impactos decorrentes destes eventos. O objetivo deste trabalho é analisar o índice de anomalia de chuva como um indicador climático da variabilidade pluviométrica no município de Governador Celso Ramos/SC. Foi usada a série de dados pluviométricos diários de 1976 a 2016, obtida da Agência Nacional de Águas (ANA). Os resultados apontaram que o IAC anual variou entre -2,74 (ano de 1990) e 2,64 (ano de 2008). Além disso, metade do período estudado apresentou maiores recorrências de anomalias negativas, enquanto que a segunda metade apresentou mais anomalias positivas. De um modo geral, o IAC demonstrou ser uma importante ferramenta na análise das precipitações anuais em Governador Celso Ramos para a identificação de anos secos e chuvosos.
653 $aprecipitação
653 $aseca
653 $aséries climáticas
700 1 $aBACK, A. J.
773 $tIn: SIMPÓSIO BRASILEIRO DE RECURSOS HÍDRICOS, 22., 2017, Florianópolis. Anais... Porto Alegre: ABRH, 2017.
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Epagri-Sede (Epagri-Sede) |
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Registro Completo
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
12/03/2015 |
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Data da última atualização: |
12/03/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
WAGNER-RIDDLE, C.; WERNER, S. S.; CARAMORI, P. H.; RICCE, W. S.; NITSCHE, P. R.; BERTOLDI, P. V.; SOUZA, E. F. |
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Título: |
Determining the influence of Itaipu Lake on thermal conditions for soybean development in adjacent lands. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
International Journal of Biometeorology, Berlin Heidelberg, v. 59, February, 2015. |
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Idioma: |
Inglês |
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Conteúdo: |
Previous numerical simulations have suggested that the area adjacent to Itaipu Lake in Southern Brazil is significantly affecting the local thermal regime through development of a lake breeze. This has led to concerns that soybean growth and development, and consequently yield, has been affected by the creation of the artificial lake in this important agricultural region, but a systematic climatological study of the thermal effects of Itaipu Lake has not been conducted. The objectives of this study were to assess the spatial pattern of minimum and maximum air temperatures in a 10-km-wide area adjacent to Itaipu Lake as affected by distance from the water. Measurements were conducted over 3 years in seven transects along the shore of Itaipu Lake, with five weather stations placed in each transect. Phenological observations in soybean fields surrounding the weather stations were also conducted. Generalized additive models for location, scale, and shape (GAMLSS) analysis indicated no difference in the temperature time series as distance from water increased. Semivariograms showed that the random components in the air temperature were predominant and that there was no spatial structure to the signal. Wind direction measured over the three growing seasons demonstrated that, on average, the development of a lake breeze is limited to a few locations and a few hours of the day, supporting the temporal and spatial analysis. Phenological observations did not show differences in the timing of critical soybean stages. We suggest that the concerns that soybean development is potentially affected by the presence of Itaipu Lake are not supported by the thermal environment observed. MenosPrevious numerical simulations have suggested that the area adjacent to Itaipu Lake in Southern Brazil is significantly affecting the local thermal regime through development of a lake breeze. This has led to concerns that soybean growth and development, and consequently yield, has been affected by the creation of the artificial lake in this important agricultural region, but a systematic climatological study of the thermal effects of Itaipu Lake has not been conducted. The objectives of this study were to assess the spatial pattern of minimum and maximum air temperatures in a 10-km-wide area adjacent to Itaipu Lake as affected by distance from the water. Measurements were conducted over 3 years in seven transects along the shore of Itaipu Lake, with five weather stations placed in each transect. Phenological observations in soybean fields surrounding the weather stations were also conducted. Generalized additive models for location, scale, and shape (GAMLSS) analysis indicated no difference in the temperature time series as distance from water increased. Semivariograms showed that the random components in the air temperature were predominant and that there was no spatial structure to the signal. Wind direction measured over the three growing seasons demonstrated that, on average, the development of a lake breeze is limited to a few locations and a few hours of the day, supporting the temporal and spatial analysis. Phenological observations did not show differences in the ti... Mostrar Tudo |
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Palavras-Chave: |
Artificial lake; Brazil; Itaipu Lake; Semivariogram; Soybean phenology; Temporal analysis. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02497naa a2200265 a 4500
001 1123298
005 2015-03-12
008 2015 bl uuuu u00u1 u #d
100 1 $aWAGNER-RIDDLE, C.
245 $aDetermining the influence of Itaipu Lake on thermal conditions for soybean development in adjacent lands.$h[electronic resource]
260 $c2015
520 $aPrevious numerical simulations have suggested that the area adjacent to Itaipu Lake in Southern Brazil is significantly affecting the local thermal regime through development of a lake breeze. This has led to concerns that soybean growth and development, and consequently yield, has been affected by the creation of the artificial lake in this important agricultural region, but a systematic climatological study of the thermal effects of Itaipu Lake has not been conducted. The objectives of this study were to assess the spatial pattern of minimum and maximum air temperatures in a 10-km-wide area adjacent to Itaipu Lake as affected by distance from the water. Measurements were conducted over 3 years in seven transects along the shore of Itaipu Lake, with five weather stations placed in each transect. Phenological observations in soybean fields surrounding the weather stations were also conducted. Generalized additive models for location, scale, and shape (GAMLSS) analysis indicated no difference in the temperature time series as distance from water increased. Semivariograms showed that the random components in the air temperature were predominant and that there was no spatial structure to the signal. Wind direction measured over the three growing seasons demonstrated that, on average, the development of a lake breeze is limited to a few locations and a few hours of the day, supporting the temporal and spatial analysis. Phenological observations did not show differences in the timing of critical soybean stages. We suggest that the concerns that soybean development is potentially affected by the presence of Itaipu Lake are not supported by the thermal environment observed.
653 $aArtificial lake
653 $aBrazil
653 $aItaipu Lake
653 $aSemivariogram
653 $aSoybean phenology
653 $aTemporal analysis
700 1 $aWERNER, S. S.
700 1 $aCARAMORI, P. H.
700 1 $aRICCE, W. S.
700 1 $aNITSCHE, P. R.
700 1 $aBERTOLDI, P. V.
700 1 $aSOUZA, E. F.
773 $tInternational Journal of Biometeorology, Berlin Heidelberg$gv. 59, February, 2015.
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