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NNMREC
November 5, 2010
Northwest National Marine Renewable Energy Center
Standards and Protocols for Environmental Assessment
Renewable Ocean Energy and the Marine Environment
Brian PolagyeUniversity of Washington
NNMREC
Virtual Center Organization
EnvironmentalAcoustics
Electromagnetic Fields
Benthic Ecosystems
Sediment Transport
SocialFisheries/Crabbing
Outreach/Engagement
Existing Ocean Users
Local/State Economy
Technical Testing/Demonstration
Site and Resource Characterization
Survivability/Reliability
Device/Array Optimization
NNMREC
Hydrokinetic Devices
Advancing Technology ReadinessTechnology
Testing
Economic Effectiveness
Environmental Impacts
Survivability
Reliability Maintenance intervals
Extreme environmental loads
Monitoring can have impacts
Aligning technical feasibility with cost
Emerging technical approaches
- and -
Environmental Assessment
NNMREC
Monitoring Platform Evaluation
Seabed InstrumentationMeasurement Tripod
Shipboard SurveyR/V Jack Robertson
Land ObservationAIS Ship Tracks
NNMREC
Baseline Environmental Characterization
Physical Environment
AcousticsHydrodynamicsWater Quality
Grey Whale
Tracking
Sediment Sampling
Trawls
NNMREC
Evaluating Environmental EffectsRecording
Hydrophone
CPod
Automatic Identification System
DopplerProfiler
Data Collection Data Synthesis and Analysis
Potential for
Behavioral Change
Environmental Uncertainty
Estimated Effect
Species Behavior
NNMREC
Components of Environmental Protocols Clearly defined objectives
― What hypothesis is being tested?
Data collection― Hardware selection and configuration― Sampling scheme
Data analysis and interpretation Development will be iterative
― Improve based on use― High degree of collaboration required
Aspects of protocols will be site and technology specific
NNMREC
Why Protocols Matter: Ambient Noise
All measurements
Measurements excluding sensor-induced pseudo-noise
Mean levels >5 dB lower
Maximum noise levels 10 dB lower
Different analysis leads to different conclusions
NNMREC
Information Sharing
Lack of data sharing between projects often cited as a barrier to resolving environmental uncertainty
Volume of raw data can be staggering
Context of collection matters
Is this practical?
Distinguish between data and information
NNMREC
Thank You
More information available at:
Wave: http://nnmrec.orgeonstate.edu
Tidal: http://depts.washington.edu/nnmrec
This material is based upon work supported by the Department of Energy under Award Number DE-FG36-08GO18179.