Chlorophyll data from R/V Endeavor cruises EN321 and EN325 to Georges Bank in 1999 as part of the U.S. GLOBEC program (GB project)

Website: https://www.bco-dmo.org/dataset/2417
Data Type: Cruise Results
Version: 1
Version Date: 2004-07-14

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

Program
» U.S. GLOBal ocean ECosystems dynamics (U.S. GLOBEC)
ContributorsAffiliationRole
Gifford, Dian J.University of Rhode Island (URI-GSO)Co-Principal Investigator
Manning, James P.Northeast Fisheries Science Center - Woods Hole (NOAA NEFSC)Co-Principal Investigator
Allison, DickyWoods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager

Abstract
Chlorophyll data from R/V Endeavor cruises EN321 and EN325 to Georges Bank in 1999 as part of the U.S. GLOBEC program.


Coverage

Spatial Extent: N:42.1853 E:-66.5947 S:41.0032 W:-70.3288
Temporal Extent: 1999 - 1999

Dataset Description

Chlorophyll data from R/V Endeavor 321 and 325

The pigments were analyzed by fluorometry according to Parsons et al. 1984, "A Manual of Chemical and Biological Methods for Seawater Analysis." Pergamon Press, New York.

Data submitted by:
Dr. Dian J. Gifford
Graduate School of Oceanography 
University of Rhode Island 
Narragansett, RI 02882-1197   
 
phone:  401-874-6690  
fax:    401-874-6240 
e-mail: gifford@gsosun1.gso.uri.edu
 
updated: gfh, July 14, 2004 

Methods & Sampling

Chlorophyll data from Dian Gifford's Georges Bank Cruise R/V Endeavor EN325.


Data Processing Description

The pigments were analyzed by fluorometry according to Parsons et al. 1984, "A Manual of Chemical and Biological Methods for Seawater Analysis." Pergamon Press, New York.


[ table of contents | back to top ]

Data Files

File
chlorophyll.csv
(Comma Separated Values (.csv), 17.55 KB)
MD5:297aa13afacc303da736a88dc60ac732
Primary data file for dataset ID 2417

[ table of contents | back to top ]

Parameters

ParameterDescriptionUnits
cruiseid cruise identification
year four digit year
cast CTD cast number
lat latitude, negative = south decimal degrees
lon longitude, negative = west decimal degrees
depth depth of sample meters
chl_a chlorophyll-a pigment micrograms/liter
chl_a_stderrchlorophyll-a standard error
phaeo phaeopigment micrograms/liter
phaeo_stderrphaeopigment standard error


[ table of contents | back to top ]

Instruments

Dataset-specific Instrument Name
Conductivity, Temperature, Depth
Generic Instrument Name
CTD - profiler
Dataset-specific Description
CTD measurements taken, CTD unit unidentified.
Generic Instrument Description
The Conductivity, Temperature, Depth (CTD) unit is an integrated instrument package designed to measure the conductivity, temperature, and pressure (depth) of the water column. The instrument is lowered via cable through the water column. It permits scientists to observe the physical properties in real-time via a conducting cable, which is typically connected to a CTD to a deck unit and computer on a ship. The CTD is often configured with additional optional sensors including fluorometers, transmissometers and/or radiometers. It is often combined with a Rosette of water sampling bottles (e.g. Niskin, GO-FLO) for collecting discrete water samples during the cast. This term applies to profiling CTDs. For fixed CTDs, see https://www.bco-dmo.org/instrument/869934.


[ table of contents | back to top ]

Deployments

EN321

Website
Platform
R/V Endeavor
Start Date
1999-03-28
End Date
1999-04-11
Description
process

Methods & Sampling
Chlorophyll data from Dian Gifford's Georges Bank Cruise R/V Endeavor 321.

Processing Description
The pigments were analyzed by fluorometry according to Parsons et al. 1984, "A Manual of Chemical and Biological Methods for Seawater Analysis." Pergamon Press, New York.

EN325

Website
Platform
R/V Endeavor
Start Date
1999-06-13
End Date
1999-06-30
Description
process

Methods & Sampling
Chlorophyll data from Dian Gifford's Georges Bank Cruise R/V Endeavor EN325.

Processing Description
The pigments were analyzed by fluorometry according to Parsons et al. 1984, "A Manual of Chemical and Biological Methods for Seawater Analysis." Pergamon Press, New York.


[ table of contents | back to top ]

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.



[ table of contents | back to top ]

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).



[ table of contents | back to top ]

Funding

Funding SourceAward
National Oceanic and Atmospheric Administration (NOAA)
NSF Division of Ocean Sciences (NSF OCE)

[ table of contents | back to top ]