Exploring RPAS potentiality with RGB camera to understanding short term variation on sandy beaches

Remotely Piloted Aircraft Systems (RPAS) is a low cost and useful alternative to track spatial-temporal variations in rapidly changing environment. However, it is still missing studies on beach geomorphology characterization in association with the visible spectrum reflectance potentialities. The objective of this contribution is to embrace this technology for coastal change detection. For this purpose, data from four surveys starting on May until August 2019, considering digital orthophotos, digital terrain models and geomorphological parameters such as the Relative Tide Range (RTR) and Omega (Ω), allowing to: (i) classify the beach morphodynamics; (ii) identify the berms, cusps, and rip current channels; (iii) extract RGB indexes to detect the shoreline variability; (iv) assess beach profiles and (v) evaluate the volume of sediments .