Asset Details
Do you wish to reserve the book?
The use of rainfall disaggregation coefficients to obtain intensity-duration-frequency curves: estimation using pluviographic data versus national mean values
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
The use of rainfall disaggregation coefficients to obtain intensity-duration-frequency curves: estimation using pluviographic data versus national mean values
Do you wish to request the book?
The use of rainfall disaggregation coefficients to obtain intensity-duration-frequency curves: estimation using pluviographic data versus national mean values
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
The use of rainfall disaggregation coefficients to obtain intensity-duration-frequency curves: estimation using pluviographic data versus national mean values
2025
Overview
The lack of sub-daily rainfall data to obtain intensity-duration-frequency (IDF) relationships at a local scale is a common limitation in many countries. This study determines rainfall disaggregation coefficients using pluviographic data from several meteorological stations to adjust IDF curves for Rio de Janeiro state, Brazil. The adjusted IDF curves using the coefficients obtained show satisfactory adjustment with Nash and Sutcliffe efficiency values above 0.99 compared to the mean values proposed by Cetesb (1979). The root mean square error (RMSE) of the estimated rainfall intensities using the adjusted IDF relationships for different return periods and rainfall durations varied between 2.55 at the Eletrobrás station and 42.49 at the São Bento station. The disaggregation coefficients obtained for Rio de Janeiro state differ from the values proposed in the literature, which confirms the need to adjust values locally and for hydrologically homogeneous regions. This local and regional scale approach provides more accurate IDF curves. Keywords: extreme rainfall, IDF relationship, Rio de Janeiro.
Publisher
Instituto de Pesquisas Ambientais em Bacias Hidrográficas
Subject
