1. Developments and Benefits of
Hydrographic Surveying Using
Multispectral Imagery - GSI Case Study
Helen Needham, Proteus hn@proteusgeo.com
Robert Carroll, Proteus rc@proteusgeo.com
www.ProteusGeo.com +1(585)210 0090
Photo Some rights reserved by Nataraj Metz

2. Hydrographic Data
Accurate and current
hydrographic data is
crucial for:
● Navigation charts
● Environmental
assessment
● Coastal Engineering
● Dredging
● Near-shore projects
● Natural disaster risk
assessment
● UNCLOS territorial
claim

3. Hydrographic Data Challenges:
Collection

4. Hydrographic Data Challenge:
Available Coverage/Currency

5. Hydrographic Data Challenge:
"White Strip" limitations

6. New Approach to Bathymetric Survey:
Satellite Imagery

7. Imagery Multispectral Capabilities

13. EOMAP MIP System
(Modular Imagery Processing)

14. Bathymetric Survey

15. Seabed Classification

16. Water Quality: TSM

17. Water Quality: Turbidity

18. Water Quality: Chlorophyll

19. Water Quality: Coloured Dissolved
Organic Material (CDOM)

20. Water Quality: Light Absorption
(Z90 MAX)

21. Geological Survey of Ireland &
INFOMAR
The INtegrated Mapping FOr the Sustainable Development of Ireland’s MArine Resource (INFOMAR) programme is a joint
venture between the Geological Survey of Ireland and the Marine Institute. The programme is a successor to the Irish National
Seabed Survey (INSS) and concentrates on creating a range of integrated mapping products of the physical, chemical and
biological features of the seabed in the near-shore area.

22. GSI: Planned Lidar Survey Areas
(Red)

23. GSI: Successful Lidar Collections

24. GSI: First Satellite Bathymetry RFP

25. Wexford Bay Trail Project

26. Wexford Bay in Google Earth

27. Wexford Bay: Ground Truthing

28. Conclusions:
● Existing collection
methods costly and
not timely
● New satellite
imagery /
processing
expanding products
● Timely, low-cost
accurate products