Physical oceanographic data from mooring ST2 on Georges Bank from February to August, 1995 as part of the U.S. GLOBEC program (GB project)

Website: https://www.bco-dmo.org/dataset/2411
Data Type: Cruise Results
Version: 1
Version Date: 2005-06-21

Project
» U.S. GLOBEC Georges Bank (GB)

Program
» U.S. GLOBal ocean ECosystems dynamics (U.S. GLOBEC)
ContributorsAffiliationRole
Manning, James P.Northeast Fisheries Science Center - Woods Hole (NOAA NEFSC)Principal Investigator
Allison, DickyWoods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager

Abstract
Physical oceanographic data from mooring ST2 on Georges Bank from February to August, 1995 as part of the U.S. GLOBEC program (GB project)


Coverage

Spatial Extent: Lat:40.956 Lon:-67.626
Temporal Extent: 1995-02 - 1995-08

Dataset Description

Acoustic Doppler Current Profiler Observations

Current Vectors, April - June 1995

Ship:           R/V Seward Johnson

Cruises/Dates:  SJ9506/April 26 - May 2, 1995
                SJ9508/June 6 - 16, 1995
Instruments:    RDI, broadband 150 and 600 kHz ADCP units
                RDI, narrowband 150 kHz ADCP unit
obs. modes:     on-station and along track

See file comments for specifics on instruments used, observational modes
and data averaging intervals. 

 

Prepared by: Russ Burgett, URI  


Contributor:
Dave Hebert
Graduate School of Oceanography 
Univ. of Rhode Island 
Narragansett, RI 02882-1197 

voice:  401 874 6610
fax:    401 874 6728
email:  hebert@gso.uri.edu

Updated:  August 27, 2004; gfh

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Parameters

ParameterDescriptionUnits
mooringmooring identification
yearyear
latlatitude, negative = South dec. degrees
lonlongitude, negative = West dec. degrees
depth_wwater depth meters
yrday0_gmtyear day, where Jan 1 is day 0 dec. day
depthdepth of instrument/sample meters
salsalinity PSU
sigma_tdensity kilograms/meter^3
uEast component of currents, negative = West cm/sec
vNorth component of currents, negative = South cm/sec
curr_speed_abscurrent speed cm/sec
curr_dir_abscurrent direction (towards), from true North degrees
light_trans_vlight transmission volts


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Instruments

Dataset-specific Instrument Name
Standard Vector Measuring Current Meter
Generic Instrument Name
Vector Measuring Current Meter
Dataset-specific Description
The VMCMs , VACM, and the SeaCats were set to record every 7.5 minutes, the TPODs every 30 minutes, and the Minilog every 60 minutes
Generic Instrument Description
The Vector Measuring Current Meter (VMCM) is an instrument for obtaining ocean current data. It is often deployed on moorings for long periods of time (years). The VMCM employs biaxial propellers and has undergone extensive tests and calibrations (Weller and Davis 1980). It is a well-characterized mechanical current meter and has been used for benchmarking other current meters (e.g., Dickey et al. 1998a). The two sets of orthogonal cosine response propeller sensors directly measure components of horizontal velocity, and direction is determined with a flux-gate compass (estimated resolution of 1.4 and accuracy of 5) to allow rotation of components into geographical coordinates. References: Dickey, TD, AJ Plueddemann, and RA Weller, 1998a: Current and water property measurements in the coastal ocean. The Sea, KH Brink and AR Robinson, Eds., Vol. 10, John Wiley and Sons, 367-398. Emery, WJ and Thomson, RE. 2004. Data Analysis Methods in Physical Oceanography. 638pp. Weller, R. A., and R. E. Davis, 1980: A vector measuring current meter. Deep-Sea Res., 27A, 565-582. Gilboy, TP, TD Dickey, DE Sigurdson, X. Yu, and D. Manov. 2000. An Intercomparison of Current Measurements Using a Vector Measuring Current Meter, an Acoustic Doppler Current Profiler, and a Recently Developed Acoustic Current Meter

Dataset-specific Instrument Name
Vector Averaging Current Meter
Generic Instrument Name
Vector Averaging Current Meter
Dataset-specific Description
a near-bottom Vector Averaging Current Meter (VACM with added conductivity and light transmission sensors), The VMCMs , VACM, and the SeaCats were set to record every 7.5 minutes, the TPODs every 30 minutes, and the Minilog every 60 minutes.
Generic Instrument Description
Vector Averaging Current Meter

Dataset-specific Instrument Name
Sea-Bird Seacat CTD
Generic Instrument Name
CTD Sea-Bird SEACAT
Dataset-specific Description
four SeaCats,The VMCMs , VACM, and the SeaCats were set to record every 7.5 minutes, the TPODs every 30 minutes, and the Minilog every 60 minutes.
Generic Instrument Description
The CTD SEACAT recorder is an instrument package manufactured by Sea-Bird Electronics. The first Sea-Bird SEACAT Recorder was the original SBE 16 SEACAT developed in 1987. There are several model numbers including the SBE 16plus (SEACAT C-T Recorder (P optional))and the SBE 19 (SBE 19plus SEACAT Profiler measures conductivity, temperature, and pressure (depth)). More information from Sea-Bird Electronics.


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Deployments

ST2

Website
Platform
GLOBEC Mooring ST2
Start Date
1995-02-02
End Date
1995-08-03
Description
Stratification Study mooring Georges Bank Stratification Study ST2 mooring array


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Project Information

U.S. GLOBEC Georges Bank (GB)


Coverage: Georges Bank, Gulf of Maine, Northwest Atlantic Ocean


The U.S. GLOBEC Georges Bank Program is a large multi- disciplinary multi-year oceanographic effort. The proximate goal is to understand the population dynamics of key species on the Bank - Cod, Haddock, and two species of zooplankton (Calanus finmarchicus and Pseudocalanus) - in terms of their coupling to the physical environment and in terms of their predators and prey. The ultimate goal is to be able to predict changes in the distribution and abundance of these species as a result of changes in their physical and biotic environment as well as to anticipate how their populations might respond to climate change.

The effort is substantial, requiring broad-scale surveys of the entire Bank, and process studies which focus both on the links between the target species and their physical environment, and the determination of fundamental aspects of these species' life history (birth rates, growth rates, death rates, etc).

Equally important are the modelling efforts that are ongoing which seek to provide realistic predictions of the flow field and which utilize the life history information to produce an integrated view of the dynamics of the populations.

The U.S. GLOBEC Georges Bank Executive Committee (EXCO) provides program leadership and effective communication with the funding agencies.



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Program Information

U.S. GLOBal ocean ECosystems dynamics (U.S. GLOBEC)


Coverage: Global


U.S. GLOBEC (GLOBal ocean ECosystems dynamics) is a research program organized by oceanographers and fisheries scientists to address the question of how global climate change may affect the abundance and production of animals in the sea.

The U.S. GLOBEC Program currently had major research efforts underway in the Georges Bank / Northwest Atlantic Region, and the Northeast Pacific (with components in the California Current and in the Coastal Gulf of Alaska). U.S. GLOBEC was a major contributor to International GLOBEC efforts in the Southern Ocean and Western Antarctic Peninsula (WAP).



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Funding

Funding SourceAward
National Science Foundation (NSF)
National Oceanic and Atmospheric Administration (NOAA)

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