EVALUATION OF QUALITY OF THE WAVE DATABASE OF THE COASTAL MODELING SYSTEM – BRAZIL TO THE EASTERN COAST OF BRAZIL

• Main Authors: Gabriela Amado Frutuoso, Junia Kacenelenbogen, Iracema Reimão
• Format: Article
• Language: Portuguese
• Published: Programa de Pós-graduação em Geografia (PPGEO) 2019-07-01
• Series: GeoNordeste
• Subjects: Littoral Drift; Wave Regime; East Coast of Brazil.
• Online Access: https://seer.ufs.br/index.php/geonordeste/article/view/11246/pdf

The purpose of the present work was to evaluate the quality of the wave database of the SMC - BRASIL program, especially regarding the existence of NE waves in a stretch of the Brazilian eastern coast. For this, modeling was performed in regions whose geomorphological indicators indicated coastal drift to the SE and SO quadrants, which theoretically would be caused by these waves, in the municipalities of Ilhéus / BA, Prado / BA, and Itaúnas / ES. In the SMC database, NE waves were only identified in Prado (0.01%). ENE waves were identified in Prado (3.01%), Ilhéus (0.02%) and Itaúnas (0.02%). In all cases, the occurrences were much smaller than those recorded in wave statistics and in the literature. The coastal transport modeled for the three areas was directed to N, NE and NO, in a way contrary to the one expected by the configuration of the sand spits present. Coastal currents modeled for NE and ENE waves are directed to the SE and SO quadrants, which demonstrates that the currents generated by the program are coherent; and that the program problem is the small amount of these waves present in your database, which affects the result of the efective coastal transport.