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Esta pesquisa buscou por meio de metodos diretos e indiretos analisar a evolucao da linha de costa da praia do Iguape, no litoral do municipio de Aquiraz, identificando os processos erosivos atuantes na area no periodo de 2004 a 2012. Localizada a aproximadamente 28 km de Fortaleza, a praia do Iguape possui diversos usos, seja para atividades turisticas, seja para atividades tradicionais como a pesca por jangadas. Contudo, devido o aceleramento da urbanizacao e de areas de lazer, iniciadas na decada de 1970 em ambientes de faixa praial e campo de dunas, a paisagem local passou a mudar tornando este espaco geografico um ambiente de tensao ambiental. Estas mudancas provocaram alteracoes na morfodinâmica e hidrodinâmica da area, que passou a experimentar processos erosivos, atribuido ao recuo da linha de costa e a diminuicao do suporte sedimentar com a ocupacao de dunas. Por conseguinte, muros residenciais, barracas, restaurantes e estruturas de protecao foram destruidos pela acao das ondas na area. Diante disso, atraves de monitoramento da morfodinâmica e da hidrodinâmica e de estudos de geoprocessamento na analise de (re)ordenamento, caracterizacao fisica e processos de uso e ocupacao do espaco, a presente pesquisa teve como objetivo caracterizar a evolucao dos processos erosivos na praia do Iguape. A metodologia contemplou pesquisa bibliografica, trabalhos de campo e laboratorio utilizando materiais especificos e imagens aereas dos anos de 2004, 2009 e 2011. Verificou-se que os problemas costeiros como o avanco do mar, fortes ondas, destruicao de dunas moveis e a diminuicao da faixa praial provocaram a erosao pontual que ocasionou na destruicao dos estabelecimentos localizados na faixa praial e pos-praia, atingindo um recuo de media de -0,76 m/ano, acarretando no recuo de 6,08 m nos ultimos oito anos. A B S T R A C T This research sought through direct and indirect methods to analyze the evolution of the shoreline Iguape Beach, on the coast of the municipality of Aquiraz, identifying erosion processes active in the area in the period of  2004 to 2012. Located approximately 28 km from Fortaleza, the Iguape beach  has many uses, whether for tourism activities, whether for traditional activities such as fishing by jangadas. However, due to the acceleration of urbanization and recreation areas, initiated in the 1970s in environments praial track and dune field, the local landscape began to change making this geographical space an environment of environmental stress. These changes led to changes in hydrodynamics and morphodynamics of the area, which is now experiencing erosion, attributed to the retreat of the shoreline and reduced sediment support because of the occupation of dunes. Therefore, residential walls, stalls, restaurants and protective structures were destroyed by wave action in the area. In front of this, monitoring the morphodynamic and hydrodynamic studies and GIS in the analysis of (re)planning, physical characterization and processes for use and occupation of space, the present study aimed to characterize the evolution of erosion on the Iguape beach. The methodology included literature research, field work and laboratory using specific materials and aerial imagery of the years 2004, 2009 and 2011. It has been found that problems such as the advancement of sea, strong waves, mobile dunes destruction and reduction the strip of beach caused the localized erosion which caused the destruction of outlets located in beach zone and post shore, reaching a mean decrease of -0.76 m/year, resulting in a decrease of 6.08 m in the last eight years. Keywords: shoreline, geoprocessing, Iguape beach, use and occupation, erosion processes.

Evolução da Linha de Costa da Praia do Iguape, Aquiraz, Ceará, Brasil (Evolution of the Shoreline of the Iguape Beach, Aquiraz, Ceará, Brazil)