Acknowledgements

The authors would like to thank the Human Resources Program from the National Agency of Oil, Gas and Bio Combustibles (PRH-ANP) for the financial support. This work was supported by “Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES)”, LOC/COPPE/UFRJ (Laboratory of Waves and Current - Federal University of Rio de Janeiro) and the National Council for Scientific and Technological Development (CNPq), which are gratefully acknowledged.