Contributors | Affiliation | Role |
---|---|---|
Limeburner, Richard | Woods Hole Oceanographic Institution (WHOI) | Principal Investigator |
Allison, Dicky | Woods Hole Oceanographic Institution (WHOI BCO-DMO) | BCO-DMO Data Manager |
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
E-mail: rlimeburner@whoi.edu
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 b=wild(temp,200,5.0); b=wild(sal,200,5.0); b=wild(sigma,200,5.0);10m 5. EFTbt 5. EFTvm25m450s.mat b=wild(north,200,3.0); temp(15033:21929)=[]; 7. EFDsc2m120s.mat data(88710:91141)=[]; 8. EFDsc15m225s.mat temp(34322:48609)=[]; b=wild(sal,200,5.0); ;b=wild(sigma,200,5.0); 8. EFTsc35m225s.mat b=wild(temp,200,5); b=wild(temp,100,9); b=wild(sal,200,5); b=wild(sal,200,7); b=wild(sigma,200,7); b=wild(sigma,200,7);
Last updated April 6, 2006
File |
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mooring_ef.csv (Comma Separated Values (.csv), 55.97 MB) MD5:f126bad5781eca50d900ac09c9a5a170 Primary data file for dataset ID 2408 |
Parameter | Description | Units |
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: bt = temperature, tpod unit vm = VMCM, Standard Vector Measuring Current Meter | |
mooring | Mooring type/location, such as EFD = East Flank Discus | |
year | starting year the data were collected in YYYY format | unitless |
inst_serial_numb | instrument serial number | |
comments | comments | 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/m<sup>3</sup>-1000 |
u | east component of current velocity 2 | tbd |
v | north component of current velocity 2 | tbd |
press | pressure | decibars |
Dataset-specific Instrument Name | Sea-Bird Seacat CTD |
Generic Instrument Name | CTD Sea-Bird SEACAT |
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. |
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 |
Website | |
Platform | GB EFlank Mooring |
Start Date | 1998-11-21 |
End Date | 1999-07-31 |
Description | Eastern Flank Mooring (EF) deployed by R. Limeburner
Frontal Exchange Processes Over Eastern Georges Bank mooring. |
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.
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).
Funding Source | Award |
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National Science Foundation (NSF) | |
National Oceanic and Atmospheric Administration (NOAA) |