relação entre as anomalias de tsm e qualidade potencial da uva na região nordeste do rio grande do sul relationship between oceanic indicators and potential quality of grape in the northeast region of rio grande do sul
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2008
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Abstract
Uma das culturas de grande importância para a economia do Rio Grande do Sul é a videira. Embora as produções de vinho, suco de uva e demais derivados da uva e do vinho também ocorreram em outras regiões, a maior concentração encontra-se na região nordeste do Rio Grande do Sul. Um dos principais fatores que influenciam na qualidade potencial da uva é a precipitação. Para a videira, influem não somente a quantidade total de chuvas, mas também sua distribuição ao longo do ciclo vegetativo. Por esses motivos, é de fundamental importância o estudo da precipitação na região nordeste do Estado. Dentre as variáveis pesquisadas que relacionam a variabilidade da precipitação, destaca-se a Temperatura da Superfície do Mar (TSM). Os objetivos principais deste trabalho são: identificar os padrões de anomalias da TSM dos oceanos Atlântico e Pacífico e suas relações na precipitação, na região nordeste do Rio Grande do Sul, nos meses de outubro a março. Dessa forma, procurou-se investigar a possibilidade de uma previsibilidade da precipitação com alguns meses de antecedência e, conseqüentemente, uma possível previsão da qualidade potencial da uva para aquela região. Os resultados mostraram que o primeiro padrão principal de sete áreas oceânicas apresentou correlação altamente significativa com a precipitação acumulada de janeiro e fevereiro nesta região e, conseqüentemente, uma correlação com a qualidade potencial da uva. Também ficou evidente a alta previsibilidade do padrão predominante nos meses de janeiro e fevereiro, a partir de anomalias da TSM média de outubro-novembro.
One of the cultures of great importance for the economy of Rio Grande do Sul is the grapevine. Although the productions of wine, grape juice and other products derived from the grape and the wine also occur in other regions, the biggest concentration is found in the northeast region of Rio Grande do Sul. Among the main factors that influence the potentiality of the grape is the precipitation. For the grapevine not only influences the total amount of rains, but also its distribution throughout the vegetative cycle. For these reasons it is of basic importance the study of the precipitation in the northeast region of the State. Among the variables researched which relate the variability of precipitation there is the sea surface temperature (SST). The main purposes of this work are: to identify the standards of anomalies of the SST of the Atlantic and Pacific oceans and their relations in the precipitation in the northeast region of Rio Grande do Sul in the months from October to March. Therefore, it was focused the investigation of a possible previsibility of the precipitation with some months of antecedence and consequently a possible forecast of the potentiality of the grape for that region. The results have shown that the first main standard of seven oceanic areas presented a highly significant correlation with the accumulated precipitation of January and February in this region, and consequently, a correlation with the qualitative potentiality of the grape. Also, the high previsibility of the predominant standard in the months of January and February from anomalies of the SST average of October-November was evident.
One of the cultures of great importance for the economy of Rio Grande do Sul is the grapevine. Although the productions of wine, grape juice and other products derived from the grape and the wine also occur in other regions, the biggest concentration is found in the northeast region of Rio Grande do Sul. Among the main factors that influence the potentiality of the grape is the precipitation. For the grapevine not only influences the total amount of rains, but also its distribution throughout the vegetative cycle. For these reasons it is of basic importance the study of the precipitation in the northeast region of the State. Among the variables researched which relate the variability of precipitation there is the sea surface temperature (SST). The main purposes of this work are: to identify the standards of anomalies of the SST of the Atlantic and Pacific oceans and their relations in the precipitation in the northeast region of Rio Grande do Sul in the months from October to March. Therefore, it was focused the investigation of a possible previsibility of the precipitation with some months of antecedence and consequently a possible forecast of the potentiality of the grape for that region. The results have shown that the first main standard of seven oceanic areas presented a highly significant correlation with the accumulated precipitation of January and February in this region, and consequently, a correlation with the qualitative potentiality of the grape. Also, the high previsibility of the predominant standard in the months of January and February from anomalies of the SST average of October-November was evident.
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gruppelli2008revistarelao
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| Authors | ;Juliano Lisbôa Gruppelli;Julio Renato Marques;Gilberto Barbosa Diniz |
| Journal | technocom |
| Year | 2008 |
| DOI |
10.1590/S0100-29452008000100031
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| URL | |
| Keywords | Keywords not found |
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