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SuperGen UK Centre for Marine Energy Research Annual Assembly 2012
TERAWATT - a collaborative research projectfunded under the EPSRC Grand Challenge
Jonathan Side
UKCMER
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
TeraWatt: An Introduction and Overview
Multi-institution EPSRC research project established under
the Marine Alliance for Science and Technology Scotland (MASTS), involving the Universities of
• Heriot-Watt,
• Edinburgh,
• Highlands and Islands (LCC and SAMS),
• Glasgow (now Swansea),
• Strathclyde
• and with Marine Scotland Science as full consortium partners.
Regular reporting though a Steering Group and UKCMER
UKCMER
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
TERAWATT seeks to answer and address:
1) What is the best way to assess wave and tidal energy resources, and feedbacks on energy extraction, in certain geographical areas?
2) What are the physical consequences of wave and tidal energy extraction?
3) What are the ecological consequences of wave and tidal energy extraction?
4) The development of standard hydrographic modelling methodologies for wave and tidal developments.
Industry input led to the selection of Mike and Delft3D for modelling during formative discussions on the proposal.
UKCMER
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
TERAWATT is structured in 4 workstreams:
WORKSTREAM 1: The Research Questions, and Monitoring Progress towards Project Aims/Deliverables and the Methods Toolbox (lead Marine Scotland ~ Ian Davies)
WORKSTREAM 2: Wave and tidal stream modelling (Lead Edinburgh University ~ Venki Venugopal)
WORKSTREAM 3: Sediment Dynamics (Lead Strathclyde and Swansea ~ Mike Heath and Harshinie Karunathra)
WORKSTREAM 4: Ecological Consequences of wave and tidal energy extraction (lead Heriot-Watt University and SAMS ~ Jon Side and Mike Burrows)
Overseen by a Project Management Committee with a Steering Group with Workshop and Knowledge Exchange Events managed and co-ordinated by MASTS ~ Mark James
UKCMER
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
Seabed bathymetry - National Geophysical Data Center (ETOPO1, GEBCO_08 Grid — global grid at 30 arc-second intervals)
Workstream 2
Illustration of the use of Mike by DHI for wave modelling
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
Wind input – ECMWF, NCEP/NCAR Reanalysis (6hr intervals) Workstream 2
Illustration of the use of Mike by DHI for wave modelling
Use of wind data for 1st
March to 30th
March 2012
Workstream 2
Illustration of the use of Mike by DHI for wave modelling
Use of wind data for hindcasting period ~ 1st
March to 30th
March 2012
5th March 2012, 04:00:00 am
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
Modelled significant wave height
Workstream 2
Illustration of the use of Mike by DHI for wave modelling
Use of wind data for 1st
March to 30th
March 2012
6th March 2012, 05:00:00 am
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
Modelled significant wave height
7th March 2012, 06:00:00 am
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
Modelled significant wave height Workstream 2
Illustration of the use of Mike by DHI for wave modelling
Use of wind data for 1st
March to 30th
March 2012
8th March 2012, 07:00:00 am
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
Modelled significant wave height Workstream 2
Illustration of the use of Mike by DHI for wave modelling
Use of wind data for 1st
March to 30th
March 2012
10th March 2012, 09:00:00 am
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
Modelled significant wave height Workstream 2
Illustration of the use of Mike by DHI for wave modelling
Use of wind data for 1st
March to 30th
March 2012
Cefas Buoy: Sign. Wave Height [m]Sig Wave Ht [m]
nput
s\H
ebrid
ean_
final
_Ope
ratio
nalD
ata.
sw -
Res
ult F
iles\
Poi
nt_0
_125
deg_
Mar
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12_o
pera
tiona
l.dfs
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:\Heb
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\Cef
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.dfs
0
00:002012-03-02
00:0003-07
00:0003-12
00:0003-17
00:0003-22
00:0003-27
2
3
4
5
6
7
8
9
10
11
12
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
Significant wave height – Model Validationwith CEFAS Buoy @ 57°17'.52N and 07°54'.84Win 103m of water
Cefas Buoy: Wave Period, T02 [sec]Tz [sec]
nput
s\H
ebrid
ean_
final
_Ope
ratio
nalD
ata.
sw -
Res
ult F
iles\
Poi
nt_0
_125
deg_
Mar
ch20
12_o
pera
tiona
l.dfs
0D
:\Heb
rides
\wav
eda
ta\C
efas
Buo
y\M
arch
2012
\Cef
asM
arch
2012
.dfs
0
00:002012-03-02
00:0003-07
00:0003-12
00:0003-17
00:0003-22
00:0003-27
6.0
7.0
8.0
9.0
10.0
11.0
12.0
13.0
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
Zero Crossing Period – Model Validationwith CEFAS Buoy @ 57°17'.52N and 07°54'.84Win 103m of water
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
Future work in Workstream 2 with Mike by DHI: Use of wave model output for combined wave and tidal model
Wave model Tidal model
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
Workstream 2Illustration of the use of Deltares Delft3D
Boundary Conditions:
TPXO 7.2 Global Inverse Tide Model
The tides are provided as complex amplitudes of earth-relative sea-surface elevation for eight primary (M2, S2, N2, K2, K1, O1, P1, Q1), two long period (Mf,Mm) and 3 non-linear (M4, MS4, MN4) harmonic constituents, on a 1440x721, 1/4 degree resolution full global grid
Present Grid Resolution and Bathymetry
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
UKCMER
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
UKCMER
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
UKCMER
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
UKCMER
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
UKCMER
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
UKCMER
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
UKCMER
TERAWATT ~ EPSRC GRAND CHALLENGE FUNDING
Water level Model Validation against Tide Gauge Data (Wick)UKCMER