4 thoughts on integrated monitoring for offshore wind farms Gerben de Boer Deltares <...
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Transcript of 4 thoughts on integrated monitoring for offshore wind farms Gerben de Boer Deltares <...
4 thoughts on integrated monitoring for offshore wind farms
Gerben de Boer Deltares < Rijkswaterstaaton behalf of
Remi Laane EMECO, Deltares < Rijkswaterstaat
Dave Mills EMECO, Cefas
1) : Dutch bi-weekly monitoring
Rijkswaterstaat N03:
< 1974 : 82 1974 – 2000: 117 > 2000: 77
1) : Dutch bi-weekly monitoring
Rijkswaterstaat N03:
< 1974 : 82 1974 – 2000: 117 > 2000: 77
1) : Dutch bi-weekly monitoring
2 wind farms already!
xx
Rijkswaterstaat N03:
< 1974 : 82 1974 – 2000: 117 > 2000: 77
1) 21 offshore locations 21 wind farms + requests
3
1
source: www.ecn.nl
1) Monitoring strategy: national programs
• Huge budget cuts lie ahead due to crisis• Inertia & legacy national program hampers innovation
• infrastructure: 2 expensive vessels & hardwired locations• monitoring strategy: workflow from before modern sensors
Offshore wind farms:• 4 points per farm: finally distinction spatial & temporal variability• automated HF replaces sub-optimal bi-weekly manual collection
• wire: water levels, waves• ADCP or ADV string• CTD rail or string • Ferry box• Kd: camera + particle sizer
• Automated processing pays off for bulk data • Deltares advises this to Rijkswaterstaat
timeco
ncen
trat
ienutrientsspm/chlor-a
2) example: unified EU assessment difficult
Dutch waters not in EEA SOER (2010) assessment• were they late, not cooperating, or …• anyway: unified EU integral assessment is difficult
2 wind farms already operational
2) Monitoring strategy: parallel top-down flow
Now: Integral EU assessment difficult• variety in decentralized sources
• different monitoring strategies• different sensors and database QC
• WFD/MSFD assessment:• varying national implementations• some or qualitative requirements (GES by 11 qualitative descriptors)
Future: opportunity for parallel central approach (Mainstream’s ISIS?)• one quantitative EU monitoring strategy• one specification for EU sensors/databases• one parallel validation of bottom-up assessments• one parallel, automated, top-down reporting to members states
monitoringstrategy
data →assessment
sensors + databases
monitoringstrategy
data →assessment
sensors + databases
3) fosters range of versioned tools to integrate data
Any environmental assessment depends on1. input data version2. chosen algorithms and their3. software implementation version
• EMODNET portals now provide data• Wind farms yield Data Deluge (e-IRG)• Need for versioned, automated tools
• a central tool will always have bugs
• foster range of versioned tools
input data + software
assessment =
Na
ture
46
7,
77
5-7
77
(2
01
0)
do
i:1
0.1
03
8/4
67
77
5a
3) example: EMECO assessment web service
One central live database allows for live assessment queries
3) example: NOAA combines grid and in situ data
• NOAA has
• model ~MyOcean/GOOS
• in situ ~ SDN
• RS ~ GMES
data on central
OPeNDAP servers
• web tool DCHART
package for live
working with data
• without local copies
• other tools access
same live data
3) example: private party wind yield + downtime tools
EC: private apps (e.g. Mainstream) on public data:
apps > businesses > sales tax
4) Live-access next to delayed-access mode
• Fostering a range of live data tools/apps • Not all tools can shop a copy of all data• Current EMODNET portals provides easy human interface• but archived data also require live access
• or at least ‘automatic updates’ to correct data errors
• but preferably full data versioning instead of CDI-record id: SDN:EDMO_code:<version>:LOCAL_CDI_ID
• Foster: parallel machine readable EMODNET portal• tools catalogue that work on EMODNET data “docking station” ?
Recap
4 thoughts on integrated monitoring for offshore wind farms
• Monitoring strategy
1. farms let members save on / update national programs
2. farms allow parallel EU-to-member-states info flow• Data sensors + databases: data rich > information rich:
3. farms’ Data Deluge: range of live tools for integral assessment
4. … which favor live data access mode over delayed-modequestion → indicator
monitoringstrategy
systemknowlegde
data →assessment
sensors +databases
www.emeco-group.org