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Southeast Florida Shelf Circulation and Volume Exchange, Observations of km-scale Variability
Entry ID: RSMAS_BH001_BH002

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Summary

Abstract: Tides, wind and the Florida Current affect the dynamics of the South Florida
continental shelf over a range of scales. Two field experiments in the winter
(LARGO1) and summer (LARGO2) employed a high-frequency (HF) Ocean Surface
Current Radar (OSCR), moored current meters and a boat-mounted Acoustic Doppler
Current Profiler (ADCP) to study the circulation over the southeast Florida
Shelf. The OSCR measured near-surface currents over an approximately 30 km by
30 km grid, with 1-km horizontal resolution, covering the shelf and extending
offshore of the shelf break. By using observed 20-min surface vector field time
series to backward track patches with defined volumes of shelf water, their
recent origin was identified. The proportion of surface volume flux past
various points on the shelf that originated offshore, along the shelf edge and
inshore was then estimated. Onshore winds were linked to periods of transport
of offshore water all the way to the inner shelf during both the summer and
winter seasons.

In LARGO2 the exchange of offshore water with water over the middle and inner
shelf was closely linked to onshore and downcoast winds. Simulated particle
trajectories revealed that Florida Current spin-off eddies caused off-shelf
water to be advected onto the middle (LARGO1) or outer (LARGO2) shelf. However,
because eddies had short residence times and small spatial scales their
contribution to the overall exchange was much smaller than the wind. Use of
Ocean Surface Current Radar (OSCR), moored current meters and boat-mounted
Acoustic Doppler Current Profiler (ADCP) to study water circulation over the SE
Florida Shelf, particularly water exchange between the shelf edge and inshore
areas. The Largo 1 dataset contains data obtained during winter months from a
region of the Florida shelf off the northeast coast of Key Largo, FL. The Largo
1 (winter) study area is located just NE of the Largo 2 (summer) area.

Geographic Coverage

N: 25.38

S: 25.15

E: -79.95

W: -80.3

Data Set Citation

Dataset Originator/Creator: Haus, B.K., Wang, J.D., Martinez-Pedraja, J., Smith, N.
Dataset Title: Southeast Florida Shelf circulation and volume exchange, observations of km-scale variability
Dataset Series Name: Estuarine, Coastal and Shelf Science
Dataset Release Date: 2004-02
Dataset Release Place: London, England, U.K
Dataset Publisher: Elsevier

Temporal Coverage

Start Date: 1998-08-01

Stop Date: 1998-10-31

Location Keywords

OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > FLORIDA

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
OCEANS

Platform

BUOYS    [Information]

MOORINGS    [Information]

SHIPS    [Information]

Instrument

CURRENT METERS [Information]

ADCP >Acoustic Doppler Current Profiler [Information]

OSCR >OCEAN SURFACE CURRENT RADAR

Quality

The attribute values were checked visually against known values none

Access Constraints

None

Use Constraints

Contact Principle Investigator or second author for data use constraints. None

Keywords

Florida Current

Florida Shelf

Florida Keys

Key Largo

Pacific Reef

Triangles Reef

Mosquito Bank

Molasses Reef

Data Set Progress

COMPLETE

Originating Center

RSMAS

Data Center

Rosenstiel School of Marine and Atmospheric Science, University of Miami [Information]
Data Center URL: http://www.rsmas.miami.edu/
Dataset ID: Largo 1
Dataset ID: Largo 2

Data Center Personnel

Name: BRIAN HAUS
Phone: 305-421-4932
Email: bhaus at rsmas.miami.edu
Contact Address:
RSMAS/AMP
University of Miami
4600 Rickenbacker Causeway
City: Miami
Province or State: FL
Postal Code: 33149-1098
Country: USA

Distribution

Fees: none

Personnel

BRIAN HAUS
Role: INVESTIGATOR
Phone: 305-421-4932
Email: bhaus at rsmas.miami.edu
Contact Address:
RSMAS/AMP
University of Miami
4600 Rickenbacker Causeway
City: Miami
Province or State: FL
Postal Code: 33149-1098
Country: USA

JOHN D. WANG
Role: INVESTIGATOR
Phone: 305-421-4932
Email: jwang at rsmas.miami.edu
Contact Address:
RSMAS/AMP
University of Miami
4600 Rickenbacker Causeway
City: Miami
Province or State: FL
Postal Code: 33149-1098
Country: USA

Creation and Review Dates

SERF Creation Date: 2003-03-11
SERF Last Revision Date: 2011-12-21

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