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SOUTHERN CALIFORNIA BEACH PROCESSES STUDY SCRIPPS INSTITUTION OF OCEANOGRAPHY UNIVERSITY OF CALIFORNIA, SAN DIEGO.

Published byAda Carter Modified over 9 years ago

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Presentation on theme: "SOUTHERN CALIFORNIA BEACH PROCESSES STUDY SCRIPPS INSTITUTION OF OCEANOGRAPHY UNIVERSITY OF CALIFORNIA, SAN DIEGO."— Presentation transcript:

1 SOUTHERN CALIFORNIA BEACH PROCESSES STUDY SCRIPPS INSTITUTION OF OCEANOGRAPHY UNIVERSITY OF CALIFORNIA, SAN DIEGO

2 Beaches are Economic Drivers for Tourism $ millions/year in Southern California alone

3 LEUCADIA, CA – FEB 2002 Coastal erosion threatens public and private safety and property.

4 In-Situ ATV & JetSki Surveys: San Onofre and Torrey Pines LIDAR CDIP Wave Buoys

5 Insitu Survey Instrumentation

6 Insitu Surveys: Above Waterline (Exposed Beach) to Offshore (8m depth) Torrey Pines San Onofre

7 Optech LIDAR Instruments (Light Detection and Ranging) Altitude: 3000 ft Swath Width: 600 ft

8 Torrey Pines Golf Course Sep 2004 LIDAR Survey Shaded Relief Colored by Elevation Beach Contours 1m interval

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10 University of Texas LIDAR & Scripps ATV Survey Comparison Index Map Cross-shore Profiles

11 Northwest Swell Both San Onofre and Torrey Pines are exposed to North swell.

12 South Swell Torrey Pines is sheltered from the South by Pt. La Jolla San Onofre is exposed to South swell

13 What role does the wave climate play?

14 [m] SAN ONOFRE Low Seasonal Variation TORREY PINES High Seasonal Variation Exposed to southern swell - causing rapid beach recovery after storms Partially sheltered from south swell – requires much longer time to recover

15 http://cdip.ucsd.edu/SCBPS Point & Click Public Website

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18 Amphibious Assault Landing Eroded gully Support of hovercraft redesign

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20 Wave-Driven Alongshore Current Predictions

21 TYPE Surveys ----------------------------------------------------------- ATV/JETSKI: Torrey Pines Nourishment36 LIDAR Groundtruth8 Torrey Pines Monthly ATV16 San Onofre Monthly ATV2 Jumbo6 LIDAR: La Jolla – Dana Point (5/02-10/03)6 Mexican Border to Long Beach 2 CHARTS: La Jolla – Dana Point (4/04)1 http://cdip.ucsd.edu/SCBPS/

22 What are the benefits, now and downstream? Data for development and testing of improved models for beach erosion and accretion Guidance for regional sediment management decisions (beach nourishment projects, permitting of protective structures) Data on changes to wetlands, river deltas and shoreline positions in support of regional coastal observing systems

23 Ocean Observing Collaboration Seismic Reflection/MultiBeam/LIDAR/CHARTS Coastal Observing Systems/ SIO Spatial Referencing Center

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