17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences Developing useful coastal state indicators (CSIs): The CoastView Project “Developing (video-derived) coastal state indicators in support of coastal zone management”

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences Talk Format Problem definition The CoastView approach The technology Results Benefits / Conclusions

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences Problem Definition Information complexity / relevance: The information provided to coastal managers in the form of data, models and scientific interpretation is often too complicated to be of direct use Communication issues (scientists & end-users): –Scientists feel that … –End users feel that … –Different pressures on scientist and end-users –Short term practical use vs. long term benefits –Controlled vs. uncontrolled discussions –Local sites vs. general interests Technical issues: Inadequate temporal and spatial coverage and resolution Requirements: Need a better match of specialist knowledge to end user needs

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences The CoastView Approach …

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences The CoastView Approach Coastal Management Problems 1. Inadequate Sampling Resolution / Coverage + 2. Information Complexity CSIs can be defined as: ‘Issue-related parameters that can simply, adequately and quantitatively describe the dynamic-state and evolutionary trends of a coastal system’. CoastView Solution Video Monitoring + Coastal State Indicators or CSIs 3. Inadequate Understanding of the Coastal System +

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences Content of research Researchers Content of research End users Researchers Content of research End users ‘free’‘driven’‘applied’ Balance of initiative Spectrum of research types Science driven vs. problem driven research Diagram courtesy of Mark van Koningsveld, WL Delft Hydraulics

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences Coastal ManagersScientists Management Issues Strategic Objectives Frame of Reference Field Measurements Benchmarking Process Intervention Procedure Evaluation Procedure CSIs Models Data / knowledge Video-derived variables Operational Objectives

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences The Technology Data Connection Cameras Image Sampler Field Computer University server Field System Local System

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences How does it work? – Image Rectification Palm Beach, Australia 17 May :00 Oblique View Rectified - Plan View (& Time-averaging) Palm Beach Australia. Courtesy of Graham Symonds

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences Time Coastline Position (m) Filtered daily video derived time-series of the MCL Annual / biannual MCL measurements from traditional surveys Video Derived Momentary Coastline (MCL) Position 1990 Position Courtesy off Stefan Aarninkhof, Delft Hydraulics

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences High-water exceedence curves Longshore Distance (m) Cross-shore Distance (m) Data For 2001 Exceedence Percentile Egmond, the Netherlands. Courtesy of Aart Kroon, University of Utrecht

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences Beach Use – El Puntal, Santander, Spain

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences Beach Use: User density El Puntal, Santander, Spain. Courtesy of Raul Medina and Andres Osario.

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences Spatial Distribution of Beach Users Histogram of walking distances from beach access to sunbathing place on August The peak is ~ 150 m Distance from access point (m) No. of People

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences Spatial Distribution of Beach Users Log-normal distributions of optimal distance from shoreline on August 9, 2003 The peak is ~ 50 m Distance from shoreline (m) No. of People

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences Channel axis Video recognition of navigation channel markers at Teignmouth, UK Different colours Represent different buoys Land

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences Dredging effort and the effect on coastal morphology

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences Concluding remarks End user – Scientist interaction –Consortia of scientists and end users do not guarantee useful outcomes –Indicators are not enough! A clearly defined ‘frame of reference’ is required in order to guide productive interaction between scientist and managers and to make CSIs useful… Frame of Reference allows: –Focused discussions between scientists and coastal managers –Direct linkage between CSIs and management issues –Integration of additional data / information sources –Clearly define benchmarking, intervention and evaluation procedures Video technology is useful for coastal zone management

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences The CoastView Consortium + Close collaboration with O.S.U. - Rob Holman Originator of the video technology National-scale coastal managers in red Acknowledgements

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences Take-up of the technology Flooding due to breaching of a shingle barrier – West Bay, Dorset, UK

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences Take-up I II III Beach Hazard Map Informed By Video Images

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences Take-up Informed Replenishment Programmes, Egmond, Netherlands

17/03/2016 ELOISE, Slovenia Dr. Mark Davidson. School of Earth Ocean & Environmental Sciences Bathing Hazards Hazardous Sandbars Strong Flows Rip-current channels Teignmouth, UK Egmond, Netherlands