Spector, Ashlyn Brittany. Applications of UAVS for coastal monitoring: Holgate, Long Beach township, New Jersey. Retrieved from https://doi.org/doi:10.7282/t3-2g7z-6228
DescriptionCoastal zones are dynamic environments that support a large percentage of populations and hold cultural, economic, and social importance. Erosion from nuisance flooding and storms are already a threat to coastlines and are further exacerbated by the effects of climate change and rising seas. Coastal monitoring can inform of these environmental changes, but frequent high resolution spatial and temporal data is needed to better understand the morphological impact. By modifying an existing monitoring protocol, this study utilizes UAVs (unmanned aerial vehicles) to collect high resolution imagery, real time kinematic ground control points (RTK; GCPs), and measurement of five cross-shore beach transects monthly from October 2020 to May 2021 at Holgate beach, Long Beach Township, New Jersey. With this information, a monthly sediment volumetric change analysis, custom volumetric change calculations, and an oceanographic forcings model to relate water levels with geomorphological changes were all created. A correlation between increased water levels due to periods of storminess and beach erosion was found. Overall, storminess (October 2020 to February 2021) related to net erosion of Holgate, while periods of quiescence (February 2021 to May 2021) related to net accumulation. However, sediment was overall lost from the beginning to end of the study, affirming volume loss of the dry beach and dunes at Holgate.