Digital map of nitrate concentration in groundwater in the Segura Hydrological District (Spain)

DOWNLOAD THE MAP HERE: https://doi.org/10.5281/zenodo.14865102 This digital map is the result of the paper: Arauzo, M., Valladolid, M. & Andries, D.M. (2024) Groundwater nitrate pollution in the Segura Hydrological District (Spain) and the way it affects the Mar Menor catchment area in particular. Estudios Geológicos, 80(1), 1071. https://doi.org/10.3989/egeol.45105.1071 Here, we present a raster map of the nitrate levels across the groundwater bodies of the Ebro Hydrological District (Spain) during 2021. Spatial analysis of nitrate distribution was performed, aquifer by aquifer, using the Inverse Distance Weighted (IDW) interpolation method of the ArcGIS Spatial Analysis tools. The shapefiles of points on which the interpolations were performed corresponded to the annual mean nitrate concentrations for 2021. For more information, please see the Methodology on Digital Thematic Cartography in the README file (Arauzo et al., 2024). Key specifications: · Bands: 1. · Cell size: 25, 25 m. · Format: TIFF. · Spatial reference: ETRS_1989_UTM_Zone_30 To generate the map legend, ensure you import the legend's colour code (Layer symbology file.lyr) into ArcGIS using Layer Properties/ Symbology_Classified/ Import symbology. TWO FOLDERS INCLUDED: 1. Map of nitrate in groundwater 2021_Segura.zip. It includes the digital map of nitrate concentration in groundwater in the Segura Hydrological District (Spain; mean annual values for the year 2021) in TIFF format, a metadata file, a layer symbology file and the nitrate map in JPG format. 2. README_Arauzo et al 2024, Nitrate in Segura Hydrological District, Est Geol.pdf

Peer reviewed