| Key Projects
National Oceanic and Atmospheric Administration, National Ocean
Service, Center for Operational-Oceanographic Products and Services
(NOAA/NOS/COOPS), Physical Oceanographic Real-Time Systems (PORTS),
Narragansett Bay, RI, - Technical Lead/Field Oceanographer
Responsible for the operation and maintenance of the Narragansett
Bay PORTS. Duties included daily data QA/QC, on-site service and maintenance,
reporting, and project management. Assisted NOAA/FOD with the final
installation in February 2000, and have maintained involvement up to
present. Knowledgeable with all aspects of PORTS measurement systems,
and data telemetry and management.
National Oceanic and Atmospheric Administration, National Ocean Service,
Center for Operational-Oceanographic Products and Services (NOAA/NOS/COOPS),
Physical Oceanographic Real-Time Systems (PORTS), Delaware River &
Bay, DE – Field Oceanographer
Serve as PORTS technical assistant to Local Operator, Stephen O’Malley,
and Delaware Field Office. Performed pre-development side-scan sonar
survey at all ADCP measurement locations from Brandy Wine shoals, NJ
to Newbold, PA. Assisted with telemetry and measurement system troubleshooting
and installation during start-up phase of Local Operator takeover. Assist
on an as-needed basis with technical support and reporting tasks.
Real-Time MET-OCEAN Monitoring System & Scientific Test Tower,
Cape Wind Associates, LLC, Horseshoe Shoal, Nantucket Sound, MA –
Field Oceanographer
Prepared and installed a suite of meteorological sensors on a 60m
monopole serving as a scientific test tower for a proposed offshore
wind-driven energy generation facility. Served as lead climber for the
installation. Installed an RDI ADCP to measure wave height and direction,
and currents adjacent to the tower in 6m of water. Perform periodic
maintenance and troubleshooting of sensors, and inspection of ADCP and
sub-sea tower support structure. Assisted with a submerged aquatic vegetation
(SAV) survey in support of regulatory environmental permitting requirements.
Integrated Marine Monitoring System, West Seno Floating Production
Facility, Unocal Indonesia Corp., Makassar Strait, East Kalimantan,
Borneo, Indonesia – Field Oceanographer
Assisted with the design, integration, and installation of a real-time
marine environmental monitoring system to measure and display DGPS position,
anchor line tensions, wind, waves and currents. The system includes
an RDI upward looking 300kHz ADCP, a downward looking 75kHz ADCP, a
Woods Hole Instrument Systems, Ltd. (WHISL) real-time wave gauge, and
an R.M. Young anemometer. All of these sensors are integrated through
Woods Hole Group’s propriety software (IMMS). IMMS is a distributed
data acquisition and display system, consisting of multiple PC’s
that receive data from primary sources, and communicate among themselves
over a client supplied LAN. IMMS is a fully distributed, decentralized,
flexible and expandable information management system.
Real-Time Current and Wind Monitoring System Aboard the Drillship
Jack Ryan, ExxonMobil Corporation, East Timor Sea, Australia –
Field Oceanographer
Assisted with the design and integration of a real-time deepwater
current profiling system onboard the Drillship Jack Ryan deployed offshore
northwest Australia. Performed routine maintenance of the current sensor
and deployment system. The system includes an RD Instruments Phased
Array 38kHZ direct reading ADCP, and an R.M. Young anemometer integrated
through a PC that archives the current and wind data and displays vertical
profiles of current speed and direction to 1000m and wind speed and
direction at 88m. The mechanical deployment system was designed and
installed by WHG, and consists of an articulating steel A-frame and
pneumatic winch, facilitating deployment of the ADCP over the side.
Responsible for daily data QA/QC after data is transferred from rig
via FTP satellite link.
Real-Time River Current Monitoring system, Bath Iron Works, General
Dynamics Corp., Kennebec River, Bath, ME – Field Oceanographer
Conducted bottom feature mapping and submarine cable route survey
for the purpose of planning the submarine cable routing for two bottom-mounted
upward-looking ADCP’s and two piling-mounted horizontal-looking
ADCP’s for real-time monitoring of river currents. Led a side-scan
sonar survey of the riverbed to understand the bottom morphology at
the deployment sites and to locate submerged obstructions that would
impede the installations. Performed data processing, mosaicing and charting
of bottom features and cable routes. Design and integration of the real-time
monitoring system to be used to assist with decision-making for ship
launching operations is pending.
Real-Time Acoustic Doppler Current Profiler (ADCP) Data Acquisition
System, Drillship Discoverer Spirit, Gulf of Mexico, UNOCAL Corporation,
TX – Field Oceanographer
Assisted with the design, integration and installation of a real-time
deepwater current profiling system onboard the Drillship Discoverer
Spirit deployed in the Gulf of Mexico. Performed routine maintenance
of the current sensor and deployment system. The system includes an
RD Instruments Broadband 75Hz direct reading ADCP, integrated with the
ship’s gyrocompass through a Windows 98 platform that archives
the current data and displays vertical profiles of current speed and
direction to 550m. The mechanical deployment system, consisting of a
steel frame coupled to a sled that rides along two fixed rails in the
moon pool, was designed and installed by WHG.
Real-Time Acoustic Doppler Current Profiler (ADCP) Data Acquisition
system, Drillship Discoverer 534, Gulf of Mexico, PB Amoco Corporation,
TX – Field Oceanographer
Performed routine maintenance of the current sensor and deployment
system onboard the Discoverer 534 located in the Gulf of Mexico. The
system includes an RD Instruments broadband 75kHz direct reading ADCP,
integrated with the ship’s gyrocompass through a Windows 98 platform
that archives the current data and displays vertical profiles of current
speed direction to 550m.
Historical Analysis of Shoreline Change for the Georgica Pond Region,
Suffolk County, Long Island, New York, - Deputy Project Manager
To identify changes that took place along the shoreline, an analysis
of sequential contemporaneous aerial photographs (1938-2001) was performed
using a computer based Geographic Information system (GIS). Performed
cartographic error analysis and linear regression and end point analyses
of shoreline rates of change. Modeled the shoreline response to a series
of groins to determine the impacts down drift of these engineering structures.
Analyzed USACE WIS data to determine the prevailing Oceanographic controls
on sediment transport. Co-authored final report.
South Cape Beach State Park Marsh Restoration, Town of Mashpee, MA
– Field Oceanographer
Assisted with the design and implementation of an estuarine hydrodynamic
characterization. Deployed a suite of oceanographic instrumentation
packages to measure tides, currents, salinity and temperature at selected
locations. Performed a bathymetric survey for use as hydrodynamic modeling
criteria. Surveyed marsh cross-sections and tide gauges to a common
vertical datum.
Dead Neck Dune Restoration, Barnstable, Massachusetts, Three Bays
Preservation Inc., MA - Field Oceanographer.
A long-term beach erosion management program that includes beach
replenishment, dune stabilization, and dredging. Performed coastal processes
analyses, field surveys, environmental permitting, and construction
oversight. Assisted with the design and construction of a coastal water
bird habitat restoration/dune stabilization effort in cooperation with
the Audubon Society. Serve as project’s technical lead for sediment
coring, hydrographic surveying, and construction performance monitoring.
Compile annual report summarizing the beach replenishment performance,
future erosion/accretion trends, and mitigation recommendations.
Delineation of an Historical Tidal Inlet, Debidue Island, South Carolina,
Confidential Client, SC - Project Geologist.
An historical inlet investigation was performed to settle a land
boundary dispute between two contiguous parcels of land along Debidue
Island, South Carolina. Research and fieldwork were designed to determine
the location of "New Inlet" prior to its closure in the early
1800’s. Using historical maps, plats, and aerial photographs, an
approximate historical position of the inlet was initially identified
using Geographic Information System (GIS) technology.
A detailed field investigation was implemented to determine the exact
location of the Paleo-inlet, consisting of geophysical surveying and
sediment coring. Ground penetrating radar (GPR) profiles were collected
to identify potential inlet fill sequences and to characterize the sub-surface
geology. Sediment cores were collected and sampled for grain size and
organics to ground-truth the GPR data. Organic samples were radiocarbon
dated to prove a chronology for the evolution of the barrier and tidal
inlet system. Trees were age dated to verify the geological data. The
Paleo-inlet was identified along the central portion of Debidue Island,
280-m south of the current property boundary. A four-stage model was
developed to illustrate the evolution of the southern half of Debidue
Island, including the opening and closing of “New Inlet”.
Scarborough Marsh Restoration, Scarborough, Maine, Normandeau Associates
Inc., ME - Field Oceanographer.
Assisted with the design and implementation of an estuarine hydrodynamic
characterization. Deployed a suite of oceanographic instrumentation
packages to measure tides, currents, salinity and temperature at selected
locations. Performed an ADCP survey and bathymetric survey for use as
hydrodynamic modeling criteria. Surveyed marsh cross-sections and tide
gauges to a common vertical datum.
Beach Nourishment and Inlet Stabilization at Sandwich Town Beaches
and Maintenance Dredging, East End of Cape Cod Canal, Sandwich, Massachusetts,
Town of Sandwich, MA - Field Oceanographer.
Characterized the hydrodynamic properties of a tidal inlet and
the adjacent estuary through the deployment of a suite of oceanographic
instruments. Performed in-situ geotechnical testing for jetty design
criteria, using a 70’ jack-up barge, mobile drilling rig, and dilatometer.
Federal Emergency Management Agency (FEMA) Flood Insurance Study,
Letter of Map Amendment (LOMA), Northeast Cove, Scraggy Neck, Bourne,
MA, - Project Manager.
Conducted coastal flooding analyses and flood hazard zone mapping
according to FEMA guidelines. Performed two-dimensional numerical modeling
of wave height and storm run-up conditions. Manipulation and mapping
of spatially related data using ArcView/GIS.
Exploring Late Holocene Hurricane Activity as Recorded in Salt Ponds
and Lagoons of the Caribbean Region, St. Croix, USVI, Woods Hole Oceanographic
Institution, MA - Field Oceanographer.
An exploratory investigation of the sedimentological signals emplaced
by Hurricanes in coastal ponds and lagoons, in order to reconstruct
past hurricane activity, for the purpose of predicting future hurricane
activity. Utilized a vibratory coring device and submersible impacting
pneumatic piston vibrator, custom designed by WHG, to collect continuous
sediment cores on land and underwater using SCUBA. Served as technical
lead, diver and logistician on project.
Relationship of Erosion, Hazard Zones, and Post-Storm Recovery to
the Geologic Framework of Selected Barrier and Headland Segments, North
Carolina, National Oceanic and Atmospheric Administration/National Undersea
Research Center - Research Assistant.
Collected, processed and interpreted side scan sonar imagery and
seismic reflection profiles. SCUBA diving assisted retrieval of vibracore
and rock core samples. Designed and implemented a regional GPR survey
and subsurface sampling program for stratigraphic correlation. Described
local geologic framework and its relationship to hazard zones on adjacent
shorelines.
Beach Erosion and Hurricane Protection Plan, Comprehensive Geologic
Characteristics Report, Onslow Beach, United States Marine Corps Base,
Camp LeJeune, North Carolina - Assistant Project Manager.
A geologic and sand resources investigation for erosion mitigation
and shoreline management plan. Collected bi-monthly topographic beach
profiles and analyzed the spatial and volumetric changes along the foreshore.
Executed the acquisition, processing and geologic interpretation of
side scan sonar imagery and seismic reflection profiles. Assisted with
a GPR survey to delineate sand resource target sites. Spatial data analysis
and digital cartography using MapInfo/GIS and ArcView/GIS. Contributing
author and technical editor for final report.
Hurricane Impacts and Beach Recovery in Southeastern North Carolina:
The Role of the Geologic Framework, Final Report for USACE-Wilmington
District, Contract DACW54-98-P-3225 - Assistant Project Manager.
Compiled a comprehensive geologic report describing the regional
impacts due to the 1996 Hurricane season. Collected, analyzed, and interpreted
both field data and GIS data related to the impacts to and recovery
of local barrier islands. Data sets included: side scan sonar imagery,
seismic reflection profiles, SCUBA diver surveys, bathymetry profiles,
beach profiles, cores, and shoreline change data generated from aerial
photographs and GIS. Contributing author and technical editor for final
report.
Brunswick Beaches Consortium, Brunswick Beaches Preservation Plan,
Bald Head Island-Holden Beach, and Erosion Mitigation Projects, Towns
of Holden Beach and Long Beach, North Carolina - Field and Lab Technician.
Established permanent network of controlled beach monitoring stations
to monitor the spatial and volumetric changes along the foreshore. Calculated
beach replenishment volumes and generated historical shoreline change
maps using ArcView/GIS. Assisted with final report preparation.
North Carolina’s Inlet Initiative, North Carolina, North Carolina
Division of Coastal Management - Research Assistant.
Compiled database of historic inlet induced shoreline changes from
interpretation of aerial photographs using ArcView/GIS. Constructed
graphs and charts depicting parameter changes of selected inlets and
adjacent shorelines. Described historical inlet and shoreline migration
trends, and delineated inlet induced hazard zones for coastal land use
planning.
Pictorial Atlas of North Carolina’s Inlets, North Carolina,
North Carolina Sea Grant - Research Assistant.
Utilized desktop scanning and publishing software to image and
manipulate scaled aerial photographs. Compiled in-depth histories describing
individual inlet characteristics including inlet stability and migration,
erosion and accretion patterns, tidal-delta morphology, inlet modification
and dredging scenarios, and future trends. Assisted with final layout
design.
Bridge Scour Project, Stream Stability and Scour Assessments at Bridges
in Massachusetts, Massachusetts, Massachusetts Highway Department/U.S.
Geological Survey - Hydrologic Technician.
Performed site characterizations of scour susceptibility and stream
channel stability at highway stream crossings. Assisted with hydrographic
surveys and gathered and processed GPS data to generate a GIS database
of bridge locations and conditions. Aided in compiling a computer database
of site assessment video images.
Publications and Presentations
Marden, Tara P., FitzGerald, Duncan, Buynevich,
Ilya, Johnsen, Carl D., Pendleton, Elizabeth, Fields, M. Leslie. 1999.
Identification of a Paleo-Tidal Inlet Using Ground Penetrating Radar
and Sediment Cores, Debidue Island, South Carolina. Geological Society
of America Abstracts with Programs, V. 33, No. 6.
Johnsen, Carl D., Cleary, William J., Freeman, Christopher W., and Sault,
Maryellen. 1999. Inlet Influenced Shoreline Changes Along the High Energy
Flank of the Cape Fear Foreland in Southeastern North Carolina. Coastal
Sediments ’99, Proceedings of the 4th International Symposium on
Coastal Engineering and Science of Coastal Sediment Processes, ASCE
Press, Vol. 2, P.1402-1417.
Johnsen, Carl D., Cleary, William J., and Riggs, Stanley R. 1999. Seafloor
Mapping of the Shoreface, Onslow Bay, N. Carolina, Using Digital Sidescan
Sonar and Seismic Reflection. Geological Society of America Abstracts
with Programs, Vol. 31, No. 2.
Cleary, William J., Johnsen, Carl D., Johnston, Marcus K., and Sault,
Maryellen. 1999. Storm Impacts and Shoreline Recovery in Southeastern
North Carolina: The Role of the Geologic Framework. Coastal Sediments
’99, Proceedings of the 4th International Symposium on Coastal
Engineering and Science of Coastal Sediment Processes, ASCE Press, Vol.
3, P. 1798-1813.
Sault, Maryellen, Cleary, William J., and Johnsen, Carl D. 1999. Hurricane
Impacts and Shoreline Recovery Along Masonboro Island, NC. Coastal Sediments
’99, Proceedings of the 4th International Symposium on Coastal
Engineering and Science of Coastal Sediment Processes, ASCE Press, Vol.
1, P. 597-611.
Johnsen, Carl D., Cleary, William J., and Marden, Tara P. 1998. Sand
Resources Inventory and Potential Target Sites along Hardbottom Dominated
Shorefaces, North Carolina. Proceedings of the International Coastal
Symposium '98, Journal of Coastal Research, Special Issue No. 26, A16.
Johnsen, Carl D., Cleary, William J. and Marden, Tara P. 1998. Sand
Resources on Hardbottom Dominated Shorefaces in Southeastern North Carolina.
Geological Society of America Abstracts with Programs, V. 30, No. 1.
Cleary, William J., Johnsen, Carl D., Sault, Maryellen, and Gottfried,
Bryan E. 1998. Hurricane Impacts in Southeastern North Carolina: The
Influence of the Underlying Geologic Framework. UNESCO-International
Union of Geological Sciences (IUGS), International Geologic Correlation
Program (IGCP) #367, Annual Meeting Proceedings, Athens, Greece.
Marden, Tara P., Cleary, William J., Sault, Maryellen, and Johnsen,
Carl D. 1998. Holden Beach, NC, A Transgressive Barrier along the Low
Energy, Sand Starved Flank of Cape Fear: Erosion History and Mitigation.
Geological Society of America Abstracts with Programs, V. 30,No. 1.
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