Caracterização do Processo de Migração Das Dunas de Flexeiras, Baleia, Paracuru e Jericoacoara, Costa Noroeste do Ceará

Abstract

This research work, which sought to comprise the coastal locations of Flexeiras, Baleia, Paracuru e Jericoacoara, Northwest Ceará State, aimed at assessing the migration process of dunes, taking into account their morphological features, dimensions and volume, in addition to gauging the influence of rainfall over their dynamics. The estimation of dune migration rates was based on direct, in situ, and indirect, by means of sattelite imaging, measurements of the distances between their dune tracks. The size and volume of dunes were obtained through topographical surveying and remote sensing. The comparison between such data and rainfall at the time of their formation showed there to occur a good inverse correlation between volume and main size features, and their respective migration speed, emphasizing the outstanding role of climate on the development and displacement of eolian dunes in Northwest Ceará State.