This document summarizes the seafloor mapping and visualization services provided by Harpha Sea, d.o.o. Koper. They use remote sensing technologies like satellite data, aerial photography and echo-sounding as well as ground validation techniques like underwater photogrammetry and diving inspections. The data collected is fused using multi-sensor data fusion of echo-sounder and underwater photography data to create detailed maps of the seafloor morphology, sub-bottom layers, and spatial patterns of seabed habitats, benthic macroflora and fauna, and geomorphological characteristics. Advanced visualization and 3D modeling of the data is also provided to support applications in marine policy, management, research and dissemination.

1. Seafloor mapping and
visualisation
Harpha Sea, d.o.o. Koper

2. Available technologies and our services
our service
partnering service
REMOTE SENSING
GROUND VALIDATION
Satellite data
Aerial photography
Echo-sounding
Underwater photogrammetry
Diving inspection

3. Possible outputs and data scale
REMOTE SENSING
GROUND VALIDATION
DEGREE OF ACCURACY & INFORMATION
AREA COVERED/h
Backscatter automated
clasification of habitats
Satellite data
Orthophoto
Detailed photo geolocation

4. Multi-sensor data fusion
(echo-sounder and underwater photography)
Seabed morphology
Sub-bottom layers
Integrated data from our core hydrographic, geophysical and environmental
services can provide map products reflecting spatial patterns of seabed
habitats, benthic macro-flora & fauna and geomorphological characteristics.
(Posidonia oceanica,
Pinna nobilis, Verongia
aerophoba …)
ECHO-SOUNDER LAYERS
PHOTOGRAMMETRY LAYERS
Precise distribution
and size of seabed
habitats,
distribution of
larger species

5. Advanced visualisation and data manipulation
Enhanced high detail survey images
Underwater orthophoto GIS application
(Posidonia oceanica distribution)
3D model of terrain and vegetation

6. 3D GIS tool
Data from different sources (like MBES, photo, video) is georeferenced and
merged in 3D GIS application for quantitative and qualitative analysis.
PostGIS/PostgreSQL
database
supporting 3D GIS.
Visualization of continuous land-sea
terrain model.
Biomass evaluation from 3D model.
Video survey post processing.
click for demo video
download

7. Marine mapping is all about holistic approach to create picture of seabed:
morphology, sedimentologyand biology.
Our data is suitable to create and interpret thematic maps of diverse habitats that
can be used to implement marine policy, management and resource utilization.
Seafloor mapping and visualisation
Application
Monitoring indicators for Marine Strategy
Framework Directive (MSFD) descriptors based on
precise geolocation:
q Biodiversity: distribution and size of
seabed habitats, largerspecies and non-
indigenous species, biomass evaluation from 3D model;
q Eutrophication and Physical damage effects
on seabed and habitats
q Seafloor integrity: damage on sea bottom,
changes in integrity;
q Monitoring of changes in hydrographical
conditions;
q Marine litter hot spots (surface and sea bottom)
Integrated research of
large underwater areas –
detailed georeferenced
seafloor mapping.
Implementation of Marine
Spatial Planning (MSP) and
Integrated Coastal Zone
Management (ICZM).
3D visualization, modeling and
projection for research and
dissemination (cultural and natural
heritage, virtual “travelling” over
underwater natural or archaeological
sites).

8. Harpha Sea, d.o.o. Koper
Čevljarska 8
6000 Koper
Slovenia - Europe
Phone: +38656638920
Mobile: +38641513285
Email: cale@harphasea.si
Contact details
Thank you for your attention!