|
|
|
|
|
| Dorneles,Viviane R.; Damé,Rita de C. F.; Teixeira-Gandra,Claudia F. A.; Veber,Patrick M.; Klumb,Gustavo B.; Ramirez,Mario A. A.. |
| ABSTRACT Based on historical series, for each locality, equations can characterize the relationship between intensity, duration and frequency of rainfall occurrence. The objective of this study was to present two equations that can describe the occurrence of intense rainfall in Pelotas, RS state, over the period 1982-2015. The two equations were denominated conventional and hybrid, depending on the probabilistic model used. Following the conventional methodology, the parameters of Normal, Log-Normal, Gumbel and Gamma probability distributions were adjusted by the maximum likelihood method for return periods of 2, 5, 10, 20, 25, 50 and 100 years. The maximum intensity values for the hybrid equation were obtained using the empirical model of Weibull,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rainfall records; Intense rainfalls; Maximum rainfall intensities. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000700499 |
| |
|
|
| Dorneles,Viviane R.; Damé,Rita de C. F.; Teixeira-Gandra,Claudia F. A.; Méllo,Letícia B.; Ramirez,Mario A. A.; Manke,Emanuele B.. |
| ABSTRACT Rainfall intensity-duration-frequency (IDF) relationships are a tool that can be used in modeling the transformation of rainfall to runoff, required for the design of hydraulic works. The objective of this study was to verify if there is a significant difference between the intensity-duration-frequency relationships generated using pluviographic records and those determined from pluviometric data. Maximum annual rainfall intensity values were obtained from the disaggregation of maximum daily rainfall and rainfall records in the durations of 5, 10, 15, 20, 30, 60, 120, 360, 720 and 1440 min and for the return periods of 2, 5, 10, 20, 25, 50 and 100 years, in the locality of Pelotas, Rio Grande do Sul state, Brazil (31° 46’ 34’’ S; 52° 21’ 34’’ W,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Intense rains; Pluviometric data; Pluviographic records. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000700506 |
| |
|
|
|
