Offshore Wind Farm Survey Requirements by by Mr Euan McNeill Business Development Manager (Coastal Surveys) and Senior Geophysicist Titan Environmental Surveys Ltd

Introduction: Site Survey Data Needs Data DataGeophysicsGeotechnicsOceanography (waves / currents) BenthicOrnithologyMeteorology (Met Mast Deployment) Titan’s Experience Titan’s Experience 7 Licences 2 Licences 6 Licences Approx. Cost (£K) Approx. Cost (£K) >

Data Relationships Time Key PSA Particle Size Analysis ES Echosounder SSS Side scan sonar SBP Sub-bottom profiler MAG Magnetometer CPT Cone Penetrometer test VC Vibrocorer Min and max wave height, current data

Data Examples Side Scan Sonar Data Sub-bottom Profiler Data Echosounder Data

Data Coverage for a Generic Site

Data Products Isopachyte Chart Cable Route Strip Chart Sub-bottom Profiles Seabed Features Chart

Conclusions: Site data required at an early stage Site data required at an early stage Geophysical survey should incorporate: Geophysical survey should incorporate:  Bathymetry – Echosounder  Seabed Features – Sidescan Sonar  Shallow Geology – Sub-bottom Profiler  Debris Location – Magnetometer  EIA  Foundation Engineering  Cable Engineering (Landing sites / Topographic survey)  Benthic Survey Workscope  Targeted Geotechnical Survey Workscope Survey Data supports many other activities: Survey Data supports many other activities: Targeted data acquisition leads to cost savings later Targeted data acquisition leads to cost savings later