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11 th International Symposium for GIS and Computer Cartography for Coastal Zones Managementto the directional wave and wind-induced current regime during the analyzed period. Between both surveyed monthsaverage rainfall was very low and prevailing winds from NE were strong. Consequently high waves from ENEerode the base of the cliffs and Morro do Careca dune spreading sediments along Ponta Negra beach. Accordingly,short-term analysis based on LiDAR showed intense sedimentary fluxes between the dune system and beach face,probably also sedimentary exchanges with other beach sectors like the inner shelf. The process of verticalization inPonta Negra beach has been noticeable since 2000 as a result of real estate speculation, reflecting the expansion ofcommercial activities linked mainly to tourism. This urban densification promoted vegetated dunes disfigurementand progressive occupation of beach periphery. The urbanization plan was conducted without proper recognition of,geological and geomorphological characteristics along the shore, especially in the context of highly dynamic coastalprocesses of beach and dune interactions. No hydrodynamic data of long-term to short-term were considered beforethe construction of the boardwalk (currently collapsed) or other seaside infrastructure. Therefore, it is concluded thatwhat damaged the seaside infrastructure was a long-term erosive trend caused by coastal process and a lack in sedimentbudget, expressly in the past few decades. This recent urban situation is also a result of low understanding ofphysical aspects of coastal systems in addition to the low effectiveness of public management in establishing rulesfor occupation of shore surroundings. Decisions must be taken considering systematic studies about coastal zonesand the relevance of natural and anthropogenic modifiers processes in multiple spatial and temporal scales.AcknowledgmentsThe authors are grateful to Brazilian Study and Projects Financial Agency (FINEP) that has provided financialsupport for the implementation of the research.ReferencesGares, P.A., Y. Wang, and S.A. White (2006), “Using LIDAR to monitor a beach nourishment project at Wrightsville Beach,North Carolina, USA”. Journal of Coastal Research, 22:1206–1219.Hobbs, P.R.N., B. Humphreys, J.G. Rees, D.G. Tragheim, L.D. Jones, A. Gibson, K. Rowlands, G. Hunter, and R. Airey (2002),“Monitoring the role of landslides in ‘soft cliff’ coastal recession”. In: R.G. McInnes and J. Jakeways (eds.). Instability:Planning and Management, Thomas Telford, London: 589–600.Jaboyedoff, M., T. Oppikofer, A. Abellán, M.-H. Derron, A. Loye, R. Metzger and A. Pedrazzini (2012), “Use of LIDAR inlandslide investigations: a review”. Natural Hazards, 61:5–28.Mcgregor, G. and S. Nieuwolt (1998), Tropical Climatology: An introduction to the climates of the low latitudes, John Wiley &Sons, England, 339p.Nagihara, S., K.R. Mulligan, and W. Xiong (2004), “Use of a three dimensional laser scanner to digitally capture the topographyof sand dunes in high spatial resolution”. Earth Surface Processes and Landforms, 29(3):391–398.Oppikofer, T., M. Jaboyedoff, L. Blikra, M.H. Derron, and R. Metzger (2009), “Characterization and monitoring of the Åknesrockslide using terrestrial laser scanning”. Naturals Hazards and Earth Systems Science, 9:1003–1019.Pietro, L.S., M.A. O’Neal, and J.A. Puleo (2008), “Developing terrestrial-LIDAR-based digital elevation models for monitoringbeach nourishment performance”. Journal of Coastal Research, 24(6):1555–1564.Rosser, N.J., D.N. Petley, M. Lim, S.A. Dunning, and R.J. Allison (2005), “Terrestrial laser scanning for monitoring the processof hard rock coastal cliff erosion”. Quarterly Journal of Engineering Geology and Hydrogeology, 38:363–375.Rowlands, K.A., L.D. Jones, and M. Whitworth (2003), “Landslide laser scanning: A new look at an old problem”. QuarterlyJournal of Engineering Geology and Hydrogeology, 36(2):155–157.Santos, M.S.T. and V.E. Amaro (2011), “Rede geodésica para o monitoramento costeiro do Litoral Setentrional do Estado do RioGrande do Norte”. Boletim de Ciências Geodésicas, 17:571–585.Santos, M.S.T., V.E. Amaro and M.V.S. Souto (2011), “Metodologia geodésica para levantamento de linha de costa emodelagem digital de elevação de praias arenosas em estudos de precisão de geomorfologia e dinâmica costeira”. RevistaBrasileira de Cartografia, 63(5):663–681.Zeibak, R. and S. Filin (2007), “Change detection via terrestrial laser scanning”. International Archives of Photogrammetry andRemote Sensing, 36(3/W52):430–435.9