Shoreline series of the Doniños coastal system, NW Iberia (1945-2020): A Geospatial Dataset

Abstract

This repository stores shoreline data spanning from 1945 to 2020, derived from aerial photography and orthophotos, for the Doniños coastal system in NW Iberia. The shoreline indicator is defined as the boundary between vegetated dunes and bare beach sand. The methodology and dataset are detailed in the following publication: Rita González-Villanueva, Martiño Pastoriza, Armand Hernández, Rafael Carballeira, Alberto Sáez, Roberto Bao. "Primary drivers of dune cover and shoreline dynamics: A conceptual model based on the Iberian Atlantic coast." Geomorphology, Volume 423, 2023, 108556, ISSN 0169-555X. https://doi.org/10.1016/j.geomorph.2022.108556. The shoreline dataset is encapsulated in a single GEOJSON file: SHORES_1945_2020.geojson. This dataset encompasses the shorelines mapped from all available aerial data for the Doniños coastal system, on the Galician coast, NW Iberia, from 1945 to 2020. It comprises a total of 15 shorelines. The geospatial layer employs the ETRS89/UTM zone 29N coordinate system (EPSG: 25829). SHORES_1945_2020.geojson: This layer presents the shorelines, where each feature is a MultiLinestring with the following attributes: objectid: Identifier of the shoreline. date: Date of the shoreline capture, in month/year format (mm/yyyy). SHAPE_Leng: Length of the mapped shoreline, in meters. Source: Source of the original image from which the shoreline was derived, including the Centro Nacional de Información Geográfica (CNIG) and the Centro Cartográfico y Fotográfico del Ejército del Aire (CECAF). Type: 'O' signifies an orthophotograph, and 'AP' signifies an aerial photograph. GEO_Error: Georeferencing error for each manually georeferenced photograph. geometry: The type of geometry used in the file, specified as MultiLineString. coordinates: UTM coordinates for each node in the multiline.