Maestro, AdolfoGallastegui, AlbaMoreta, MercedesLlave, EstefaníaBohoyo, FernandoDruet Vélez, MaríaNavas, JavierMink, SandraFernández Sáenz, FernandoCatalán, ManuelGómez Ballesteros, MaríaMuñoz Martín, AlfonsoGranja Bruña, José Luis2023-06-172023-06-1720211744-564710.1080/17445647.2021.1973917https://hdl.handle.net/20.500.14352/8514In 2003, 2006–2009, 2014 and 2015, seven oceanographic cruises were carried out onboard the Spanish R/V Hespérides in the Cantabrian Margin and the adjacent abyssal plains, covering anarea of 219,124 km2. Based on the combined analysis and interpretation of the bathymetric and reflectivity data obtained with multibeam echosounders (SIMRADEM12, EM120 and EM1002), and ultra-high-resolution reflection seismic records acquired with the SIMRAD TOPASPS18 parametric sounder, the mapping of the acoustic facies or echo-character at a scale of 1:1,200,000 has been carried out. Thirty types of echoes have been differentiated and gather into four main groups: Distinct, Irregular, Hyperbolic and Undulated. The echo-character depends on the acoustic response of the shallow sediment and these a bed morphology. Therefore, its analysis and characterization are basic for understanding recent and present-day sedimentary processes.engAtribución-NoComercial-SinDerivadas 3.0 Españajournal articlehttps://doi.org/10.1080/17445647.2021.1973917open access551.24BathymetryCantabrian Marginecho-characterparametric echo-sounder seismic profilesreflectivityGeodinámica2507 Geofísica