2014 04 emerald siggery
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Emerald Siggery Coastal Process Scientist
South West Regional Coastal Monitoring Programme
To promote a standard, repeatable and cost effective method of monitoring the coastal environment in the
South West
Plymouth Coastal Observatory
Environment Agency
(SW Region)
SW Maritime Local Authorities
Plymouth University
Teignbridge District Council
1st Phase of Programme 2006-2011
2nd Phase of Programme 2011-2016
100% grant aid funded - £4.4 million over 5 years
Original Extent
Extension
Various coastal defence schemes underway in the South West
Flood Risk Management Schemes
Managed Realignment Projects
Beach Management Schemes
Shoreline Management Plans
Monitoring required for each scheme – data rarely archived
Tourism spending in South West is over £9,000m annually
Long term trends needed to monitor impacts of climate change
Topographic Surveys
Bathymetric Surveys
Hydrodynamic Data
LiDAR Surveys
Aerial Photography
Ecological Monitoring
Real-Time Kinematic (RTK) GPS / GNSS
MLWS as seaward limit
Baseline survey at start of phase to get full coverage of all beaches
Interim surveys stakeout points on cross-shore profile lines
Sand Bay, North Somerset
First Survey for SWRCMP in 2007
18 Surveys Completed to Date
2 Baseline Surveys – Full Coverage
13 Interim Surveys
3 Post-storm Surveys
Reasons for using LiDAR:
Cost effective technique for covering large areas
Covers areas where ground surveying is difficult or dangerous
Problems:
Needs a clear sky
Flown between September and May – minimise vegetation cover
Flown over MLWS for maximum coverage of the intertidal area
1m Resolution
Up to 6 flights in the Severn Estuary to date
Flown Between May and September
10cm resolution
Flown over MLWS for maximum coverage of the intertidal area
3 sets of photography to date
2007
2009
2013/2014
Standard Images
Used to visualise change
A Picture Speaks a Thousand Words…
False Colour Infra-Red Images
Used to map specific inter-tidal habitats such as saltmarsh
Aerial Photography Interpretation
1 complete survey to date Second survey scheduled for the current phase of the
Programme
Uses Integrated Habitat Classification System
Produced maps and GIS shapefiles
Entire coast surveyed in the first Phase of the Programme
1 single beam bathymetric survey – up to Severn Beach
Single-Beam Surveys
Multi-Beam Surveys
St. Mary’s Sound
Second Severn Crossing WaveRadar Rex
Installed June 2011
Location 51° 21.21749' N 003° 1.10066' W
Approximate Water Depth
~ 13m CD
Tidal Range Approx. Spring Tidal Range =
11.2m
Weston Bay Directional WaveRider Buoy
Deployed September 2009
Minehead Directional WaveRider Buoy
Deployed December 2006
Location 51°13.71588'N
003° 28.31677' W
Approximate Water Depth
~ 10m CD
Tidal Range Approx. Spring Tidal Range =
9.6m
Wave Height
Wave Period
Wave Direction
Sea Temperature
Wave Height
Wave Period
Photo: EMU Limited
Real-Time Data
Archived Data
Individual Wave and Tide Reports
All data freely available from our website
Used by local authority engineers, consultants etc…
Annual Reports produced by PCO User friendly at-a-glance view
of beach condition Baseline to Spring Survey
Spring to Spring Survey
Securing funding for Phase 3 of the Programme
Reviewing our data and exploring new technology
Continuing to build a long term dataset
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