Automatic extraction of shorelines from Landsat TM and ETM+ multi-temporal images with subpixel precision

► A sub-pixel automated shoreline detection method from images is presented. ► Errors are analysed using 45 Landsat TM and ETM+ images over microtidal coast. ► Modelisation of errors allows to improve precision in shoreline location. ► Mean error ranges from 1.22 to 1.63 m and RMSE from 4.69 to 5.47 m. ► The method can be used to analyse coastal evolution trends in large temporal series.