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Introduction

Introduction. AIMS: To state the strategic and operational objectives for the Teignmouth site (as defined by local managers) To rate the chances of success using video-derived information (based on current knowledge) - 4 * rating * Hopeless (NB star rating is specific to Teignmouth)

rinaldo-cahill
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Introduction

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  1. Introduction • AIMS: • To state the strategic and operational objectives for the Teignmouth site (as defined by local managers) • To rate the chances of success using video-derived information (based on current knowledge) - 4 * rating • * Hopeless (NB star rating is specific to Teignmouth) • ** Some hope of success • *** Good chance of success • **** Excellent chance of success • To suggest a frame of reference for selected strategic and operational objectives • NB Video does not have to do everything! We need to focus on a few viable demonstration examples for each site.

  2. Approach Taken • Avoid tackling operational objectives rated at * • Continue research into operational objectives rated at ** or above • Focus efforts and prioritise work on those operational objectives rated *** or **** • Notice that this approach is reality-driven rather than priority-driven! • But… • Research into new and exciting areas in not halted.

  3. Strategic objective Operational objective 1. Quantitative state concept 2. Benchmark 3. Intervention procedure 4. Evaluation procedure System knowledge CSIs Monitoring Measurement Modelling Reference state Current state Management Context Frame of reference Long-term management vision & policy Describes how part, or all of the strategic objective will be achieved in a four-stage process

  4. Issues Addressed (1) • Management context: Navigation • Strategic Objective: ‘To maintain a safe, navigable shipping channel’ • Operational Objectives: • ‘To ensure that the navigation buoys accurately mark the limits of the channel’ *** • ‘To maintain an optimal and economic dredging strategy’ ** • ‘To give advanced warning of channel infilling’ **

  5. Issues Addressed (2) • Management context: Navigation • Strategic Objective: ‘To maintain optimal and efficient usage of the harbour’ • Operational Objective(s): • ‘To monitor the number of vessels entering / leaving and within the harbour’ *** • ‘To monitor the type of vessel using the harbour’ ** • …

  6. Issues Addressed (3) • Management context: Coastal Protection • Strategic Objective: ‘To provide safety against flooding in combination with sustainable preservation of the functions and value of the beach. ’ • Operational Objectives: • ‘To ensure that there is an adequate volume of sand in the system (to protect the coast and avoid undermining of coastal structures)’ *** • ‘To maintain beach width above some reference value’ *** • … beach volumes, MCLs etc..

  7. Issues Addressed (4) • Management context: Recreation • Strategic Objective: ‘To preserve the safety of swimmers at all times’ • Operational Objectives: • ‘To make lifeguards and the general public aware of the existence and location of swimming hazards’ **** • ‘To avoid swimming when wave heights are excessive’ ** • ‘To avoid swimming when currents are excessive’ **

  8. 5 operational objectives rated *** to **** ‘To ensure that the navigation buoys accurately mark the limits of the channel’ *** ‘To monitor the number of vessels entering / leaving and using the harbour’ *** ‘To ensure that there is an adequate volume of sand in the system to protect the coast and avoid undermining of coastal structures’ *** ‘To provide advance warning of erosion hot-spots’ *** ‘To make lifeguards and the general public aware of the existence and location of swimming hazards’ **** Results

  9. Navigation Strategic objective ‘To maintain a safe, navigable shipping channel’ Operational objective ‘To ensure that the navigation buoys accurately mark the limits of the channel’ 1. Quantitative state concept 2. Benchmark 3. Intervention procedure 4. Evaluation procedure Move buoys Review grounding statistics SCSI: • wave breaking • inter-tidal mapping • current structure • buoy position IBCSI: • Channel position • Channel-buoy inter-distance Reference state Max. safe channel-buoy inter-distance Current state Current channel-buoy inter-distance

  10. Strategic objective ‘To maintain optimal and efficient usage of the harbour’ Operational objective ‘To monitor the number of vessels entering / leaving the harbour’ 1. Quantitative state concept 2. Benchmark 3. Intervention procedure 4. Evaluation procedure Different for over and under-use of the harbour - Economic statistics IBCSI: • No. vessels entering • No. vessels leaving • No. vessels in harbour Reference state Max & Min values for acceptable use Current state Current no. of vessels in harbour Navigation

  11. CoastalProtection Strategic objective ‘To provide safety against flooding in combination with sustainable preservation of the functions and value of the beach. ’ Operational objective ‘To ensure that there is an adequate volume of sand in the system’ 1. Quantitative state concept 2. Benchmark 3. Intervention procedure 4. Evaluation procedure Nourishment? Hard defence? Revise dredging? Flooding statistics SCSI: • Video-derived shorelines IBCSI: • Total inter-tidal sand volume Reference state Threshold-value based on historic & natural variability Current state Current vol. inter-tidal sand or extrapolated trend

  12. CoastalProtection Strategic objective ‘To provide safety against flooding in combination with sustainable preservation of the functions and value of the beach. ’ Operational objective ‘To preserve beach width’ 1. Quantitative state concept 2. Benchmark 3. Intervention procedure 4. Evaluation procedure Nourishment? Hard defence? Revise dredging? Flooding statistics Beach Use SCSI: • Video-derived shorelines IBCSI: • Inter-tidal beach width Reference state Threshold-value based on historic & natural variability Current state Current beach width or extrapolated trend

  13. Recreation Strategic objective ‘To preserve the safety of swimmers at all times’ Operational objective ‘To make lifeguards and the general public aware of the existence and location of swimming hazards’ 1. Quantitative state concept 2. Benchmark 3. Intervention procedure 4. Evaluation procedure - Move swimming zone - Warn public of the existence & locations of hazards Review public awareness of hazards SCSIs • Sandbar positions • Channel positions IBCSI: • Hazard locations labelled & marked on map / image Reference state Hazards absent Current state Current hazards

  14. Conclusions • This approach has allowed us to focus on viable video applications (‘reality-driven approach’) • Application of the frame of reference is helpful but… • - Definitions of operational objectives and CSIs within the frame of reference are still vague and will have to be tightened up (interaction with local managers)! • - Evaluation and assessment of video-derived CSIs will help to improve the frame of reference definitions and reveal the optimum choice of CSIs. • The success of the project will be assessed on our ability to demonstrate the utility of video for coastal zone management!

  15. Workshop • How many? Where? • 4 workshops centred around the four CoastView field sites • Methodology: • We should work together on the content but deliver the workshops independently (avoids language barrier) • Audience: Range of managers – National scale to local scale, political & technical. • Content • General introduction stating the aims and objectives of the project • An outline of what a video is and what it’s capable of, indicating the where appropriate the potential management benefits • Give specific examples of the outcomes of the CoastView project showing explicitly how video derived CSIs can assist in the coastal management process. • General discussion – centred around the frame of reference.

  16. Action: We need examples of how video can assist the coastal management process (i.e. make it cheaper, faster, more effective) We need examples for each site by this time next year!

  17. Journal Special Issue • Mark Davidson to approach editor with a specific description (relevant for Coastal Eng. ?) • Submitted: Feb 2005, Pub. July 2005 • Contents • Intro UPl • Methodology Mark et al. • Long-term beach protection / management (Led by UU) • Navigation (UCa, UPl) • Bar migration (UU) • Spit dynamics (UCa) • Influence of protective structures (UBo) • Recreation (UPl, UBo) • Data-driven modelling (WL UPl) • Hydrodynamic CSIs (Wl, UPl)

  18. Proposal that each paper considers: Video-derivation of CSIs currently used by managers’ New CSIs identified by the manager where video can help Progress ob Scientific CSIs which may be useful to managers in the future

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