Torres Pagán, Glorimar

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    Coastal erosion assessment using small unmanned aerial vehicles (uavs) and numerical modeling: A case study in the western region of Puerto Rico
    (2018) Torres Pagán, Glorimar; Muñoz Barreto, Jonathan; College of Engineering; Morales Vélez, Alesandra C.; Chardón Maldonado, Patricia; Department of Civil Engineering; Hughes, Kenneth Stephen
    Coastal monitoring is fundamental to understand the morphological changes in coastal environments and the vulnerability of low-lying coasts to erosion and flooding. For this reason, this study was focused on monitoring coastal erosion in three areas distributed along the western region of Puerto Rico using small unmanned aerial vehicles (UAVs). These UAVs provided rapid-assessment and high-resolution images for shoreline monitoring from 2016 to 2018. The images served to establish a baseline aerial analysis useful to quantify the erosion rate using the Digital Shoreline Analysis System (DSAS) and computing the rate-of-change statistics of the coastal zones from multiple historic (1930 to 2010) shoreline positions. In addition, XBeach model was implemented to simulate swell events generated by Hurricane Matthew (Category 4) in 2016. The results demonstrated the synergy of low cost small UAV surveys and XBeach modeling to monitor the coastal zones and determine morphological changes in coastal environments.