December Calendar
An image of the bow of the Hermenegildo Capelo Frigate shipwreck (30 metres depth) using a Kongsberg EM2040C. The 100 mm gun is detected using water column data (blue to white colour palette). Note also the detail on the guard rails. CARIS HIPS and SIPS was used to process and generate the image.

Author: Carlos Rubrio Marques and Cristina Monteiro - Portuguese Hydrographic Institute