CTD data collected during CGOA Trawl cruises from R/V Pandalus PA0101, PA0102, PA0103, PA0104, PA0201, PA0202, PA0203, PA0301, PA0302, PA0303, PA0401, PA0402, PA0403 in the Northeast Pacific from 2001-2004 (NEP project)

Website: https://www.bco-dmo.org/dataset/2922
Data Type: Cruise Results
Version: 2
Version Date: 2021-06-08

Project
» U.S. GLOBEC Northeast Pacific (NEP)

Program
» U.S. GLOBal ocean ECosystems dynamics (U.S. GLOBEC)
ContributorsAffiliationRole
Haldorson, Lewis J.University of Alaska Fairbanks (UAF)Chief Scientist, Principal Investigator, Co-Principal Investigator
Boldt, Jennifer L.University of Alaska Fairbanks (UAF)Principal Investigator, Co-Principal Investigator
Piccolo, JackUniversity of Alaska Fairbanks (UAF)Principal Investigator, Co-Principal Investigator
Batchelder, HalOregon State University (OSU-CEOAS)Data Manager
Allison, DickyWoods Hole Oceanographic Institution (WHOI)Data Publisher


Dataset Description

CTD data from CGOA trawl cruises

Two related data objects:
Trawl catch data
Fork length data from trawls

From PI: All CTD Data were collected using a Seabird Seacat SBE 19 CTD, equipped with a WetStar fluorometer.

Additional information related to the events listed in these files can be queried from the GLOBEC event logs on file for each cruise.

Questions about these data should be directed to:
Jack Piccolo
UAF / SFOS
11120 Glacier Highway
Juneau, AK 99801
ftjjp1@uaf.edu
Phone: 907-796-2055


Data Processing Description

BCO-DMO data manager processing notes:
* Version 2 (2021-06-08) replaces version 1 (2008-10-23).   Character encoding converted to utf-8.   A seabird headerline which was in the middle of the dataset as a data line was removed.  

 


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Data Files

File
trawl_catch_ctd.csv
(Comma Separated Values (.csv), 2.55 MB)
MD5:b291617e0f9f7e8fadda875ba5ce5c42
Primary data file for dataset ID 2922

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Parameters

ParameterDescriptionUnits
cruiseidNote that this group used non standard cruise names; this field uses the standard naming convention; ('cruise_alt' below is alternate name). text
shipVessel that deployed the gear. text
yearYear of the cruise. YYYY
cruise_altAlternate name for cruise -- The UAF GLOBEC cruise ID. text
eventstation-cast DMO note: there is occasional discrepancy between trawl data and cruise eventlog for this field. This is the UAF GLOBEC event number but not the eventlog event number. dimensionless
stationSequential station number. dimensionless
castCTD cast number. dimensionless
latlatitude; North is positive; this info came from the cruise eventlog decimal degrees
lonlongitude; East is positive; this info came from the cruise eventlog decimal degrees
date_localdate measurements were taken dd/mm/yy
station_stdStations revisited by many cruises. dimensionless
presspressure decibars
temp_68water temperature on the ITS 68 scale degrees Celsius
densitydensity using the primary sensors kg/m3
condconductivity S/m
fluorfluorescence - WetStar chlorophyll concentration micrograms/liter
depthdepth of the measurement in the ocean meters
potemppotential temperature, IPTS-68 degrees Celsius
saladjusted Salinity psu
sigma_0density, sigma-theta kg/m3


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Instruments

Dataset-specific Instrument Name
CTD Seabird 19
Generic Instrument Name
CTD Sea-Bird SEACAT 19
Dataset-specific Description
Also called Seacat, with pump and Wetlabs fluorometer. Lowered to 100m depth at all fish stations.
Generic Instrument Description
The Sea-Bird SBE 19 SEACAT Recorder measures conductivity, temperature, and pressure (depth). The SEACAT is self-powered and self-contained and can be deployed in profiling or moored mode. The SBE 19 SEACAT was replaced in 2001 by the 19plus. more information from Sea-Bird Electronics

Dataset-specific Instrument Name
Fluorometer
Generic Instrument Name
Fluorometer
Dataset-specific Description
Wetlabs
Generic Instrument Description
A fluorometer or fluorimeter is a device used to measure parameters of fluorescence: its intensity and wavelength distribution of emission spectrum after excitation by a certain spectrum of light. The instrument is designed to measure the amount of stimulated electromagnetic radiation produced by pulses of electromagnetic radiation emitted into a water sample or in situ.


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Deployments

PA0101

Website
Platform
R/V Pandalus
Report
Start Date
2001-07-08
End Date
2001-07-14

PA0102

Website
Platform
R/V Pandalus
Report
Start Date
2001-08-11
End Date
2001-08-19

PA0103

Website
Platform
R/V Pandalus
Report
Start Date
2001-09-18
End Date
2001-09-22

PA0104

Website
Platform
R/V Pandalus
Report
Start Date
2001-10-21
End Date
2001-10-24

PA0201

Website
Platform
R/V Pandalus
Report
Start Date
2002-07-20
End Date
2002-07-26

PA0202

Website
Platform
R/V Pandalus
Report
Start Date
2002-08-20
End Date
2002-08-24

PA0203

Website
Platform
R/V Pandalus
Report
Start Date
2002-10-03
End Date
2002-10-04

PA0301

Website
Platform
R/V Pandalus
Report
Start Date
2003-07-13
End Date
2003-07-19

PA0302

Website
Platform
R/V Pandalus
Report
Start Date
2003-08-01
End Date
2003-08-07

PA0303

Website
Platform
R/V Pandalus
Report
Start Date
2003-09-09
End Date
2003-09-15

PA0401

Website
Platform
R/V Pandalus
Report
Start Date
2004-07-18
End Date
2004-07-24

PA0402

Website
Platform
R/V Pandalus
Report
Start Date
2004-08-17
End Date
2004-08-23

PA0403

Website
Platform
R/V Pandalus
Report
Start Date
2004-09-12
End Date
2004-09-17


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Project Information

U.S. GLOBEC Northeast Pacific (NEP)


Coverage: Northeast Pacific Ocean, Gulf of Alaska


Program in a Nutshell

Goal: To understand the effects of climate variability and climate change on the distribution, abundance and production of marine animals (including commercially important living marine resources) in the eastern North Pacific. To embody this understanding in diagnostic and prognostic ecosystem models, capable of capturing the ecosystem response to major climatic fluctuations.

Approach: To study the effects of past and present climate variability on the population ecology and population dynamics of marine biota and living marine resources, and to use this information as a proxy for how the ecosystems of the eastern North Pacific may respond to future global climate change. The strong temporal variability in the physical and biological signals of the NEP will be used to examine the biophysical mechanisms through which zooplankton and salmon populations respond to physical forcing and biological interactions in the coastal regions of the two gyres. Annual and interannual variability will be studied directly through long-term observations and detailed process studies; variability at longer time scales will be examined through retrospective analysis of directly measured and proxy data. Coupled biophysical models of the ecosystems of these regions will be developed and tested using the process studies and data collected from the long-term observation programs, then further tested and improved by hindcasting selected retrospective data series.



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

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