1.
USING GEOPHYSICAL DATA ANALYSIS TO
MONITOR OFFSHORE ASSETS
Amanda Forbes
Senior GIS Analyst/Developer

2.
About SeaRoc Group
▪ Formed in 2002 at the start of the
commercialisation the offshore wind
industry
▪ Developer’s of industry leading Marine
Management System, SeaPlanner™
▪ SeaPlanner has to date, supported 37
offshore projects worldwide

3.
Offshore Wind

4.
Ultimate Goal
▪ Maintain Generation
▪ Reduce Unplanned Maintenance
▪ Ensure Safety at Sea
▪ Save Money

5.
The Problem
Average Distance offshore: 43km
Average water depth: 27m

6.
Data Sources
▪ Installation (As-Built)
records:
▪ Cable depths
▪ WTG pile depths
▪ Routine survey data

7.
What are we monitoring?
▪ Sediment Transport
e.g. mobile sand waves
▪ Effects of major storm
events
▪ General tidal
movement

8.
Risks of Scour
Cable Exposure/Free span

9.
Risks of Scour
Turbine Instability

10.
Why GIS?

11.
Difficulties
▪ Poor data management
e.g. missing records
▪ Poor quality data
▪ Infrequent surveys
▪ Different survey
resolutions

12.
Analysis

13.
Outcomes
Several Years of Erosion

14.
How do clients use it?

15.
Web: www.searoc.com
Email: info@searoc.com
Phone: +44(0)1243 816 606
Amanda Forbes
Senior GIS Analyst/Developer