CoastView Workshop, Lisbon, September 2004

Beach Recreation Planning using Video-derived Beach Recreation Planning using Video-derived Coastal State IndicatorsCoastal State Indicators

Coastal Engineering Special Issue on CoastView Coastal Engineering Special Issue on CoastView

ObjectiveObjective

The main aim is to illustrate The main aim is to illustrate howhow video-derived CSIs can be video-derived CSIs can be used to help coastal managers for better beach planning used to help coastal managers for better beach planning /exploitation /management for recreational purposes./exploitation /management for recreational purposes.

When the When the beach is used for recreational purposes, the beach is used for recreational purposes, the beach (and the manager) has to provide (and to manage):beach (and the manager) has to provide (and to manage):

• resourcesresources (beach surface, environmental quality,...) (beach surface, environmental quality,...)

• servicesservices (accesses, showers, ...) (accesses, showers, ...)

• safsafetyety (hazardous conditions, lifeguard services,..) (hazardous conditions, lifeguard services,..)

ISO 9001ISO 9001

lSO 14001lSO 14001

EMASEMAS

QQ of Tourism Quality of Tourism Quality

Other national indicatorsOther national indicators

Beach carrying capacityBeach carrying capacity

Measurement of parameters involving different aspects to be Measurement of parameters involving different aspects to be considered in the evaluation the beach carrying capacity:considered in the evaluation the beach carrying capacity:

Beach user densityBeach user densityBeach user spatial patternBeach user spatial patternBeach user temporal patternBeach user temporal pattern

Advantages to usual ways of estimationAdvantages to usual ways of estimation

09:00 10:00 11:00

12:00 13:00 14:00

15:00 16:00 17:00

18:00 19:00 20:00

hour

Ava

ilabl

e su

rfac

e (m

2 /us

er)

Hourly evolution of beach available surface per userHourly evolution of beach available surface per user

Beach usersBeach users

Points/topics to be included in the paperPoints/topics to be included in the paper

Beach user densityBeach user density

Methodology (UC)Methodology (UC)Example for low-density beaches (UC)Example for low-density beaches (UC)Example for industrialised beaches (UF)Example for industrialised beaches (UF)Alternative methodology for high-density beaches. Alternative methodology for high-density beaches.

Beach user spatial patternBeach user spatial patternExample for low-density beaches (UC)Example for low-density beaches (UC)

Beach user temporal patternBeach user temporal patternExample for low-density beaches (UC)Example for low-density beaches (UC)Example for industrialised beaches (UF)Example for industrialised beaches (UF)

to tstim e

aver

age

d be

ach

wid

th (

m)

surf

ace

pe

r us

er (

m2)

usedsurface per user

averaged beach w id th

s o

s s

d s

d o

availab lesurface per user

Beach safetyBeach safety

Measurement of parameters involving different aspects to be Measurement of parameters involving different aspects to be considered in the evaluation the beach safety (hazardous considered in the evaluation the beach safety (hazardous conditions):conditions):

Due to beach configurationDue to beach configurationCurrent and wave conditionsCurrent and wave conditions

Advantages to usual ways of estimationAdvantages to usual ways of estimation

Beach safetyBeach safety

Beach safetyBeach safety

Points/topics to be included in the paperPoints/topics to be included in the paper

Beach configurationBeach configurationHazardous conditions due to bathymetryHazardous conditions due to bathymetry

Methodology (UP)Methodology (UP)Example at Teignmouth (UP)Example at Teignmouth (UP)

Currents measurements (rip) Currents measurements (rip) Example (UU, OSU)Example (UU, OSU)Rip mappingRip mapping

Current “estimation”Current “estimation”Video-derived bathymetry + wave conditionsVideo-derived bathymetry + wave conditions--- Morphodynamic states --- hazard maps --- Morphodynamic states --- hazard maps Examples (UF, UU, OSU)Examples (UF, UU, OSU)

Tentative authorsTentative authors

J. A. Jiménez (CIIRC)J. A. Jiménez (CIIRC)A. Osorio (UCa) A. Osorio (UCa) I. Mariño-Tapia (UP) I. Mariño-Tapia (UP) P. Ciavola (UF)P. Ciavola (UF)S. Quartel (UU) S. Quartel (UU) N. Vinther (UCo) N. Vinther (UCo) N. Aird (UP)N. Aird (UP) C. Albertazzi (RER) C. Albertazzi (RER) R. Holman (OSU) (?)R. Holman (OSU) (?)