SLIDE 1
Coastal Planning & Engineering Coastal Planning & Engineering Corporate Headquarters Corporate Headquarters 2481 NW Boca Raton Avenue 2481 NW Boca Raton Avenue Boca Raton, Florida 33431 Boca Raton, Florida 33431
Jeffrey L. Andrews, Jeffrey L. Andrews, PSM, CH PSM, CH Vice President Vice President CPE Coastal Geology and Geomatics CPE Coastal Geology and Geomatics
HSRP HYDROGRAPHIC SERVICES HSRP HYDROGRAPHIC SERVICES IMPROVEMENTS IMPROVEMENTS
SLIDE 2 DISSEMINATION OF HYDROGRAPHIC DATA DISSEMINATION OF HYDROGRAPHIC DATA LIMITED SAND RESOURCES IN FLORIDA LIMITED SAND RESOURCES IN FLORIDA
- Goal to find the best and nearest sand resource and
Goal to find the best and nearest sand resource and to protect sensitive marine habitats to protect sensitive marine habitats
- Critical to have most accurate and timely data
Critical to have most accurate and timely data
- Preliminary research involves locating past data sets
Preliminary research involves locating past data sets
- Need to minimize duplication of effort
Need to minimize duplication of effort
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DISSEMINATION OF HYDROGRAPHIC DATA DISSEMINATION OF HYDROGRAPHIC DATA
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ROSS ArcIMS
SLIDE 5
ROSS ArcIMS
SLIDE 6
ROSS ArcIMS
SLIDE 7
- Grid NOAA bathymetry
- Color-stretch bathymetry
- Color-shaded relief
- Overlay seatruthing
- Cores
- Jet probes
- Digitize areas
- Bathymetry contours
- Nautical charts
Sand Search Methods
Desktop Studies
SLIDE 8 Sand Search Methods
Desktop Studies
Sand Resources
SLIDE 9
STUDY STUDY AREA AREA
119,250 ha State shelf area 119,250 ha State shelf area 1,351,444 ha Federal shelf area 1,351,444 ha Federal shelf area
SLIDE 10 MORPHOSEDIMENTARY UNITS MORPHOSEDIMENTARY UNITS
- Transverse (nearshore) bars
Transverse (nearshore) bars
- Ridge fields (sand ridges)
Ridge fields (sand ridges)
Sand flats (shoreface shoreface-
attached sand sheets)
- Sand waves (offshore transverse deposits)
Sand waves (offshore transverse deposits)
- Banks (offshore deposits)
Banks (offshore deposits)
Shoals (nearshore ridge-
associated deposits)
Ebb-
- tidal deltas (nearshore wave
tidal deltas (nearshore wave-
dominated)
SLIDE 11 DUVAL RIDGE FIELD DUVAL RIDGE FIELD
131,000 ha, 131,000 ha, 12 x 10
12 x 109
9 m
m3
3 potential sand source
potential sand source
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DISSEMINATION OF HYDROGRAPHIC DATA DISSEMINATION OF HYDROGRAPHIC DATA
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DISSEMINATION OF HYDROGRAPHIC DATA DISSEMINATION OF HYDROGRAPHIC DATA
SLIDE 14
DISSEMINATION OF HYDROGRAPHIC DATA DISSEMINATION OF HYDROGRAPHIC DATA
SLIDE 15
DISSEMINATION OF HYDROGRAPHIC DATA DISSEMINATION OF HYDROGRAPHIC DATA
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DISSEMINATION OF HYDROGRAPHIC DATA DISSEMINATION OF HYDROGRAPHIC DATA
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Sand Search Methods Sand Search Methods
Reconnaissance Level Investigations Reconnaissance Level Investigations
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ONE CENTIMETER FLORIDA ONE CENTIMETER FLORIDA GEOID GEOID
Airborne Gravity Measurement
Dr Ramesh Shrestha, University of Florida National Center for Airborne Laser Mapping Conversion of ellipsoid heights to orthometric heights require a Geoid. The better the Geoid the better the orthometric heights
SLIDE 19 Sand Search Technologies
Magnetometer Surveys
- Cesium vapor magnetometer detects differences in the natural
magnetic field of an area;
- Sensitive (0.2 gammas) to submerged metallic objects;
- Used to look for cultural resources and submerged hazards.
SLIDE 20
FDEP BBCS Reconnaissance Offshore Sand Search
Sand Search Methods Sand Search Methods
Reconnaissance Level Investigations Reconnaissance Level Investigations
SLIDE 21
Sand Search Methods Sand Search Methods
Detailed Level Investigations Detailed Level Investigations
Lido Key City of Sarasota
