Search

Your search keyword '"Cassalho, Felício"' showing total 22 results
Start Over Author "Cassalho, Felício"
22 results on '"Cassalho, Felício"'

5. At-site flood frequency analysis in Brazil

Author

Valentini, Marlon Heitor Kunst, primary, Beskow, Samuel, additional, Beskow, Tamara Leitzke Caldeira, additional, de Mello, Carlos Rogério, additional, Cassalho, Felício, additional, and da Silva, Maria Eduarda Silva, additional

Published
2023
Full Text
View/download PDF

11. ArcWaT: a model-based cell-by-cell GIS toolbox for estimating wave transformation during storm surge events

Author

Cassalho, Felício, Lima, André de S. de, Miesse, Tyler W., Khalid, Arslaan, Coleman, Daniel J., and Ferreira, Celso M.

Subjects
Geography, Planning and Development, Water Science and Technology
Abstract

Quantifying the spatially varying nearshore wave characteristics and energy dissipation mechanisms is of utmost importance for several coastal management and engineering applications as well as for flood hazard assessment. This study presents the ArcGIS Wave Transformation toolbox (ArcWaT), a model-based GIS toolbox for estimating wave transformation from wave magnitude and direction model outputs. In order to assess the ArcWaT capabilities, a case study was developed using ADCIRC + SWAN model outputs from a highly-resolved numerical mesh developed for the nearshore areas of the state of Maryland and forced with wind and pressure fields from Hurricane Irene. Results show that several wave transformation processes, i.e., wave generation, shoaling, refraction, wave breaking, diffraction, and wave attenuation due to bottom friction, are more easily identified when using ArcWaT if compared to the non-processed wave magnitude and direction model outputs. Among these processes wave attenuation due to bottom friction is found to be the most significant.

Published
2022
Full Text
View/download PDF

22. At-Site Flood Frequency Analysis Coupled with Multiparameter Probability Distributions.

Author

Cassalho, Felício, Beskow, Samuel, de Mello, Carlos Rogério, de Moura, Maíra Martim, Kerstner, Laura, and Ávila, Leo Fernandes

Subjects
HYDRAULIC structure design & construction, WATERSHED management, STREAMFLOW, FLOOD risk, PROBABILITY theory
Abstract

The proper design of hydraulic structures as well as river basin management are directly dependent on adequate estimates of maximum streamflow, preferably obtained from long historical series. However, the scarce hydrological monitoring, recurrent in developing countries and the need for estimates associated with high return periods (RPs) have led to the use of estimation methods based statistical procedures, such as at-site flood frequency analysis. This study presents a framework for at-site flood frequency analysis coupled with multiparameter probability distribution functions (PDFs) (GEV, LN3, PE3, GLO, GPA, KAP and WAK), in which all the statistical procedures are derived from L-moments, in order to investigate the applicability of these PDFs in comparison to those of 2-parameters (EV1, LN2 and Gamma). The modeling framework was evaluated considering 106 maximum annual streamflow (MAS) series for the Rio Grande do Sul State - Brazil. PDFs' goodness-of-fit was studied in accordance with the Anderson-Darling test. It can be concluded that: i) the multiparameter distributions, especially KAP and WAK, had performance superior to the traditional 2-parameter distributions, providing a greater number of historical series better adjusted by such multiparameter PDFs; ii) shorter series were usually better represented by GEV when compared to the other PDFs, which is an important characteristic when long historical series are not frequently available; and iii) the quantile estimates derived from multiparameter PDFs presented lower Relative Absolute Error, thus emphasizing the importance of using such PDFs in water resources management and engineering projects. [ABSTRACT FROM AUTHOR]

Published
2018
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results