文章基本信息

标题：VIABILITY OF PRECIPITATION FREQUENCY USE FOR RESERVOIR SIZING IN CONDOMINIUMS
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作者：Isabelle Yruska L.G. Braga ; Celso A.G. Santos
期刊名称：Journal of Urban and Environmental Engineering
印刷版ISSN：1982-3932
电子版ISSN：1982-3932
出版年度：2010
卷号：4
期号：1
页码：23-28
语种：English
出版社：Universidade Federal da Paraíba
其他摘要：The increase of house condominiums in the Brazilian cities is gradually increasing due to problems concerning traffic tie-up, air pollution level, amongst others. In these condominiums, large green areas for leisure, comfort and better life quality for the joint owners are reserved. The large house gardens need hard maintenance, which raises the water demand in the condominiums. The use of the rainwater is an alternative that could be used in Brazil and other countries to minimize the use of potable water in nonpotable water needs, such as car wash, garden irrigation, etc. This paper evaluates the precipitation in João Pessoa city (capital of Paraíba state, Brazil), according to the frequency analysis and significance test. Thus, it was applied a robust tool to analyze signal frequency, named wavelet transform, which is appropriated to analyze irregular events and non-stationary series. It was analyzed two precipitation series of João Pessoa city, 1937-1970 and 1980-1996, when it was observed a significant annual signal at level 10%, which revealed the existence of an annual rainy season, which is very convenient for the water storage for further using during the dry season. Finally, the reservoir is an important item in the rainwater system and it has to be correctly design in order to make the system economically practicable. The Rippl method was used for the reservoir sizing analysis.
关键词：Rainwater; frequency analysis; João Pessoa
其他关键词：Rainwater; frequency analysis; João Pessoa.