Mooring data from the Eastern Flank Mooring (EF) on Georges Bank from 1998-1999 as part of the U.S. GLOBEC Georges Bank project (GB project)

Data Type: Cruise Results
Version: 1
Version Date: 2010-03-12

» U.S. GLOBEC Georges Bank (GB)

» U.S. GLOBal ocean ECosystems dynamics (U.S. GLOBEC)
Limeburner, RichardWoods Hole Oceanographic Institution (WHOI)Principal Investigator
Allison, DickyWoods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager

Mooring data from the Eastern Flank Mooring (EF) on Georges Bank from 1998-1999 as part of the U.S. GLOBEC Georges Bank project (GB project)


Spatial Extent: N:42.1298 E:-66.0151 S:40.5 W:-70
Temporal Extent: 1998 - 1999

Dataset Description

Georges Bank Eastern Flank Mooring Arrays

Array Summary:
The Georges Bank moored instrument array (East Flank) was moored at ~41.7N and 66.1W in ~90m of water. The array consisted of a Toroid mooring (EFT) Nov 98 - Mar 99, an instrumented Guard mooring (EFG) Mar 99 - Aug 99, and a replacement Discus mooring (EFD) for the Toroid Mar 99 - August 99. The Toroid and Discus moorings were instrumented with temperature sensors at 10, 20, 45 meters; CTD units at 1, 15, 80 meters; and current meter units at 5 and 25 meters. The Guard mooring was instrumented with a temperature sensor at 1 meter.

DMO Notes:
1.. On mooring EFT (East Flank Toroid) yearday values are numbered consecutively from Nov 1998 to Mar 1999.
2.. At the present time, the values for u and v are not available.
3..These data are served from the orginal Matlab binary files. But for performance reasons, a cached version of these data (in JGOFS/GLOBEC format) is used. Missing data are represented as either "nd" or as "NaN".

Questions regarding these data should be directed to:
Richard Limeburner
Woods Hole Oceanographic Institution
Woods Hole, MA 02543

Phone: 508 289 2539


PI Notes:
The original processing comments from the file readme.txt are show below:

For edited raw data at EF mooring
R. Limeburner 7/30/01

Input - Galbraith's *s.mat converted ascii raw data, time corrected
Output - *se.mat, with start/stop time in phase, big spikes interpolated

See plots eftraw.jpg, efsraw.jpg, eftlp.jpg, efslp.jpg

NEP Edited Raw Data  2001		

Filename			Start time		Stop Time		Comment

EFTbt10m1800se.mat	111798 140000	031199 190000	ok
EFTbt20m1800se.mat	111798 140000	031199 190000	ok
EFTbt45m1800se.mat	111798 140000	031199 190000	ok
EFTsc1m300se.mat	111798 140000	031199 190000	ok, may need Flagg editing
EFTsc15m450se.mat	111798 140000	031199 190000	ok, may need Flagg editing
EFTsc80m450se.mat	111798 140000	031199 190000	ok, may need Flagg editing
EFTvm5m450se.mat	111798 140000	031199 190000	ok
EFTvm25m450se.mat	111798 140000	031199 190000	ok
EFDbt10m900se.mat	033099 020000	080399 160000	ok
EFDbt20m900se.mat	033099 020000	080399 160000	ok
EFDbt45m900se.mat	033099 020000	080399 160000	ok
EFDbt60m900se.mat	033099 020000	042799 044500	may need more editing

EFDsc2m120se.mat	033099 020000	073199 065600	ok, may need Flagg editing
EFDsc15m225se.mat	033099 020000	062799 110000	ok, may need Flagg editing
EFDsc35m225se.mat	033099 020000	071099 183000	ok, may need Flagg editing
EFDsc80m225se.mat	033099 020000	080399 160000	ok, may need Flagg editing

EFDvm5m450se.mat	033099 020000	080399 160000	temp much shorter than velocity
EFDvm25m450se.mat	033099 020000	051999 223730	ok

Editing EF history

1. Input GAlbraiths 7/26/01 data set with correct time
2. ETTsc1m330s.mat, 
	fix cond spike at cond(12638), cond(18798)
	delete data(32895:32919), delete data(1)
	corrects the start time.
3  EFTsc15m450s.mat ok
4. EFTsc80m450s.mat data(21930:21945)=[] fixes time
5. EFTbt
5. EFTvm25m450s.mat
7. EFDsc2m120s.mat
8. EFDsc15m225s.mat
8. EFTsc35m225s.mat

Last updated April 6, 2006

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Data Files

(Comma Separated Values (.csv), 55.97 MB)
Primary data file for dataset ID 2408

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datatype The processing stage of the data, such as raw, edited, filtered, etc.
type_depth Data key, made up of the mooring type, instrument depth, and sampling interval
depth Instrument depth meters
lat latitude, negative = South, decimal degrees dd.d
lon longitude, negative = West, decimal degrees ddd.d
sampling_interval sampling interval/rate seconds
inst Instrument type, where:sc = SeaCat, SeaBird CTD unit bt = temperature, tpod unit vm = VMCM, Standard Vector Measuring Current Meter
mooringMooring type/location, such as EFD = East Flank Discus EFG = East Flank Guard EFT = East Flank Toroid
yearstarting year the data were collected in YYYY format unitless
inst_serial_numb instrument serial number
commentscomments n/a
yrday_gmt Year day/time, GMT, as decimal year1 YYY.Y
temp temperature Deg. Centigrade
cond conductivity tbd
sal salinity
sigma_t density kg/m3-1000
u east component of current velocity 2 tbd
v north component of current velocity 2 tbd
press pressure decibars

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Dataset-specific Instrument Name
Standard Vector Measuring Current Meter
Generic Instrument Name
Vector Measuring Current Meter
Dataset-specific Description
Standard Vector Measuring Current Meter
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
Sea-Bird Seacat CTD
Generic Instrument Name
Dataset-specific Description
SeaCat, SeaBird CTD unit
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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GB EFlank Mooring
Start Date
End Date
Eastern Flank Mooring (EF) deployed by R. Limeburner Frontal Exchange Processes Over Eastern Georges Bank mooring.

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

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