Table of Contents

• Dataset Description
  • Methods & Sampling
  • Data Processing Description
• Data Files
• Parameters
• Instruments
• Deployments
• Project Information
• Program Information
• Funding

CTD Hydrography

Endeavor 307, 330, 331 and Oceanus 332, 334

click here for additional sampling information (SeaBird System output).

Questions regarding these data should be directed to the US GLOBEC Data Management Office.

DMO Notes:
The data reported here are from the primary CTD sensors. However, this data set also contains conductivity, temperature and related computed parameters from secondary sensors. If these data are of interest, please contact the Data Management Office at the above link.

* Temperatures are reported in ITS90 scale except for Endeavor cruise 307 which are in the ITS68 scale.

Chief Scientist:   Charles Greene 
                   Cornell University 

Contributor:       Heidi Sosik 
                   Woods Hole Oceanographic Institution


prepared by:  Dicky Allison, March 2003 
updated:  October 1, 2004; gfh

The data reported here are from the primary CTD sensors. However, this data set also contains conductivity, temperature and related computed parameters from secondary sensors.

Header details:
# pr =  pressure [db]
# t090 =  temperature, pri, ITS-90 [deg C]
# c0S/m =  conductivity, primary [S/m]
# t190 =  temperature, sec, ITS-90 [deg C]
# c1S/m =  conductivity, secondary [S/m]
# flS =  fluorometer, sea tech
# xmiss =  transmissometer
# sal00 =  salinity, PSS-78 [PSU], T0, C0
# sal11 =  salinity, PSS-78 [PSU], T1, C1
# potemp068 =  potential temperature, pri, IPTS-68 [deg C]
# potemp090 =  potential temperature, pri, ITS-90 [deg C]
# depS =  depth, salt water [m]
# density00 =  density [kg/m^3], T0, C0
# sigma-�00 = density, sigma-theta [kg/m^3], T0, C0
# sigma-t00 =  density, sigma-t [kg/m^3], T0, C0
# sigma-100 =  density, sigma-1 [kg/m^3], T0, C0
# sigma-200 =  density, sigma-2 [kg/m^3], T0, C0
# sigma-400 =  density, sigma-4 [kg/m^3], T0, C0
# oxsatML/L =  oxygen saturation [ml/l]
# nbin =  number of scans per bin
# interval = decibars: 1                                
# bad_flag = -9.990e-29
# sensor 0 = Frequency  0  temperature, primary, 2107, 03 FEB-99
# sensor 1 = Frequency  1  conductivity, primary, 1745, 05-FEB-99s, cpcor = -9.5700e-08
# sensor 2 = Frequency  2  pressure, 64853, 08-21-96
# sensor 3 = Frequency  3  temperature, secondary, 2034, 03-FEB-99s
# sensor 4 = Frequency  4  conductivity, secondary, 1749, 03-FEB-99s, cpcor = -9.5700e-08
# sensor 5 = Extrnl Volt  0  transmissometer, 243D, 10 Jul 1999
# sensor 6 = Extrnl Volt  1  fluorometer, sea tech, 30s, july 1987
# sensor 7 = Extrnl Volt  2  oxygen, current, 130454, 18 AUG 1999
# sensor 8 = Extrnl Volt  3  oxygen, temperature, 130454, 18 AUG 1999
# sensor 9 = Extrnl Volt  4  irradiance (PAR), 4479, AUG 15, 1996
# sensor 10 = Extrnl Volt  9  surface irradiance (SPAR), degrees = 0.0

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).