RT info:eu-repo/semantics/article T1 Open Digital Shoreline Analysis System: ODSAS v1.0 A1 Gómez-Pazo, Alejandro A1 Payo, Andrés A1 Paz-Delgado, María Victoria A1 Delgadillo-Calzadilla, Miguel A. A2 Geografia Fisica K1 Geografía K1 Coastal variation K1 SAGA K1 DSAS K1 CliffMetrics K1 ProfileCrossings K1 CoastCR K1 R K1 ODSAS K1 2505.07 Geografía Física AB [EN] In this study, we propose a new baseline and transect method, the open-source digital shoreline analysis system (ODSAS), which is specifically designed to deal with very irregular coastlines. We have compared the ODSAS results with those obtained using the digital shoreline analysis system (DSAS). Like DSAS, our proposed method uses a single baseline parallel to the shoreline and offers the user different smoothing and spacing options to generate the transects. Our method differs from DSAS in the way that the transects’ starting points and orientation are delineated by combining raster and vector objects. ODSAS uses SAGA GIS and R, which are both free open-source software programs. In this paper, we delineate the ODSAS workflow, apply it to ten study sites along the very irregular Galician coastline (NW Iberian Peninsula), and compare it with the one obtained using DSAS. We show how ODSASproduces similar values of coastline changes in terms of the most commonindicators at the aggregated level (i.e., using all transects), but the values differ when compared at the transect-by-transect level. We argue herein that explicitly requesting the user to define a minimumresolution is important to reduce the subjectivity of the transect and baseline method. PB MDPI LK https://hdl.handle.net/10612/21326 UL https://hdl.handle.net/10612/21326 NO Gómez-Pazo, A., Payo, A., Paz-Delgado, M. V., & Delgadillo-Calzadilla, M. A. (2022). Open Digital Shoreline Analysis System: ODSAS v1.0. Journal of Marine Science and Engineering, 10(1). https://doi.org/10.3390/JMSE10010026 DS BULERIA. Repositorio Institucional de la Universidad de León RD 29-jun-2024