Simulated in situ production data from RVIB Nathaniel B. Palmer cruises NBP0103, NBP0104, NBP0202, and NBP0204 in the Southern Ocean from 2001-2002 (SOGLOBEC project)

Website: https://www.bco-dmo.org/dataset/2376
Data Type: Cruise Results
Version: 1
Version Date: 2003-02-24

Project
» U.S. GLOBEC Southern Ocean (SOGLOBEC)

Program
» U.S. GLOBal ocean ECosystems dynamics (U.S. GLOBEC)
ContributorsAffiliationRole
Vernet, MariaUniversity of California-San Diego (UCSD-SIO)Principal Investigator
Allison, DickyWoods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager

Abstract
Simulated in situ production data from RVIB Nathaniel B. Palmer cruises NBP0103, NBP0104, NBP0202, and NBP0204 in the Southern Ocean from 2001-2002 (SOGLOBEC project)


Coverage

Spatial Extent: N:-64.129 E:-65.51 S:-69.584 W:-77.0557
Temporal Extent: 2001 - 2002

Dataset Description

Simulated in Situ Primary Production Data

Data Notes:
1..Cruise NBP0104. A total of only 6 SIS experiments were completed, due to freezing of the deck incubator. Ref: cruise report.
2..PAR measurements. PAR was measured with a Biospherical Instruments GUV Radiometer (cosine-corrected downwelled irradiance) mounted on ship's science mast configured with PAR channels (400-700nm). PAR values are intergated over the duration of the in situ experiment. Ref: cruise reports

 

A short note on the "Southern Ocean Grid System":
The grid is a cartesian plane covering the sample region in which distances are easy to calculate. The grid system used for SOGLOBEC is a universal transverse mercator (UTM) projection with a certain base point and rotation. The base point was chosen in the far south and the rotation was chosen to create one axis along the peninsula, and the other offshore. The units of UTM are meters, but the points are chosen in km rounded to the nearest km. Negative numbers mean that samples were taken southwest of the y axis or southeast of the x axis. For more deatails see: Complete explanation of the Southern Ocean grid system.

 

Reference:
Smith, R.C., H. Dierssen, and M. Vernet. in press. Phytoplankton biomass and productivity to the west of the Antarctic Peninsula. In E.Hofmann, L. Quetin, and R. Ross (Eds.), Foundations for ecosystem research in the western Antarctic Peninsula region. Washington, D.C.: American Geophysical Union.

Data contributed by:
Maria Vernet
Integrative Oceanographic Division
Scripps Institution of Oceanography
University of California San Diego
La Jolla, California 92093-0218

Phone: 1-858-534-5322
E-mail: mvernet@ucsd.edu


Last updated: December 02, 2005; gfh


Methods & Sampling

  1. Cruise NBP0104. A total of only 6 SIS experiments were completed, due to freezing of the deck incubator. Ref: cruise report.
  2. PAR measurements. PAR was measured with a Biospherical Instruments GUV Radiometer (cosine-corrected downwelled irradiance) mounted on ship science mast configured with PAR channels (400-700nm). PAR values are intergated over the duration of the in situ experiment. Ref: cruise reports.

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Data Files

File
fullprodsis.csv
(Comma Separated Values (.csv), 51.85 KB)
MD5:ef7c2f068ca8097ef7d447b9465884f7
Primary data file for dataset ID 2376

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Parameters

ParameterDescriptionUnits
cruiseid cruise identification. (e.g. NBP0104)
year year, GMT, (e.g. 2001)
station_desc station description, as defined in a grid system, or plain text
station station number, generally numbered consecutively within cruise
grid_line standard grid line, a grid location system used by GLOBEC Southern Ocean, see grid notes below
grid_sta a grid location for a sampling obseration/station, used with grid_line
yrday_gmt year day, based on Julian Calendar YYY.Y
lat latitude, negative = South degrees
lon longitude, negative = West degrees
event event number, a unique number assigned to a specific sampling event.
cast CTD cast number
bottle bottle number
depth depth of sample or data point meters
production primary production, from simulated in situ experiments (mgC/m2/h)
prod_std_dev standard deviation of production (mgC/m2/h)
par_d_expt downwelled Photosynthetically Available Radiation, 400-700 nm wave length, measured with cosine sensor response (EsPAR), units = uE/cm2/expt (expt = over the duration of an in situ experiment, some times less than 24 hrs.) (uE/cm2/expt)


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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.

Dataset-specific Instrument Name
Photosynthetically Available Radiation Sensors
Generic Instrument Name
Photosynthetically Available Radiation Sensor
Dataset-specific Description
Photosynthetically Available Radiation Sensors, PAR was measured with a Biospherical Instruments GUV Radiometer (cosine-corrected downwelled irradiance) mounted on ship's science mast configured with PAR channels (400-700nm).
Generic Instrument Description
A PAR sensor measures photosynthetically available (or active) radiation. The sensor measures photon flux density (photons per second per square meter) within the visible wavelength range (typically 400 to 700 nanometers). PAR gives an indication of the total energy available to plants for photosynthesis. This instrument name is used when specific type, make and model are not known.

Dataset-specific Instrument Name
Radiometer
Generic Instrument Name
Radiometer
Dataset-specific Description
a Biospherical Instruments GUV Radiometer (cosine-corrected downwelled irradiance) mounted on ship's science mast configured with PAR channels (400-700nm).
Generic Instrument Description
Radiometer is a generic term for a range of instruments used to measure electromagnetic radiation (radiance and irradiance) in the atmosphere or the water column. For example, this instrument category includes free-fall spectral radiometer (SPMR/SMSR System, Satlantic, Inc), profiling or deck cosine PAR units (PUV-500 and 510, Biospherical Instruments, Inc). This is a generic term used when specific type, make and model were not specified.


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Deployments

NBP0103

Website
Platform
RVIB Nathaniel B. Palmer
Report
Start Date
2001-04-24
End Date
2001-06-05
Description
Methods & Sampling
Cruise NBP0104. A total of only 6 SIS experiments were completed, due to freezing of the deck incubator. Ref: cruise report. PAR measurements. PAR was measured with a Biospherical Instruments GUV Radiometer (cosine-corrected downwelled irradiance) mounted on ship science mast configured with PAR channels (400-700nm). PAR values are intergated over the duration of the in situ experiment. Ref: cruise reports.

NBP0104

Website
Platform
RVIB Nathaniel B. Palmer
Report
Start Date
2001-07-22
End Date
2001-08-31
Description
Methods & Sampling
Cruise NBP0104. A total of only 6 SIS experiments were completed, due to freezing of the deck incubator. Ref: cruise report. PAR measurements. PAR was measured with a Biospherical Instruments GUV Radiometer (cosine-corrected downwelled irradiance) mounted on ship science mast configured with PAR channels (400-700nm). PAR values are intergated over the duration of the in situ experiment. Ref: cruise reports.

NBP0202

Website
Platform
RVIB Nathaniel B. Palmer
Report
Start Date
2002-04-09
End Date
2002-05-21
Description
Methods & Sampling
Cruise NBP0104. A total of only 6 SIS experiments were completed, due to freezing of the deck incubator. Ref: cruise report. PAR measurements. PAR was measured with a Biospherical Instruments GUV Radiometer (cosine-corrected downwelled irradiance) mounted on ship science mast configured with PAR channels (400-700nm). PAR values are intergated over the duration of the in situ experiment. Ref: cruise reports.

NBP0204

Website
Platform
RVIB Nathaniel B. Palmer
Report
Start Date
2002-07-31
End Date
2002-09-18
Description
Also see NBP0204 Cruise Data Report

Methods & Sampling
Cruise NBP0104. A total of only 6 SIS experiments were completed, due to freezing of the deck incubator. Ref: cruise report. PAR measurements. PAR was measured with a Biospherical Instruments GUV Radiometer (cosine-corrected downwelled irradiance) mounted on ship science mast configured with PAR channels (400-700nm). PAR values are intergated over the duration of the in situ experiment. Ref: cruise reports.


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Project Information

U.S. GLOBEC Southern Ocean (SOGLOBEC)


Coverage: Southern Ocean


The fundamental objectives of United States Global Ocean Ecosystems Dynamics (U.S. GLOBEC) Program are dependent upon the cooperation of scientists from several disciplines. Physicists, biologists, and chemists must make use of data collected during U.S. GLOBEC field programs to further our understanding of the interplay of physics, biology, and chemistry. Our objectives require quantitative analysis of interdisciplinary data sets and, therefore, data must be exchanged between researchers. To extract the full scientific value, data must be made available to the scientific community on a timely basis.



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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 Antarctic Sciences (NSF ANT)

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