Fluorometric chlorophyll-a from R/V Roger Revelle KIWI6, KIWI7, KIWI8, KIWI9 cruises in the Southern Ocean, 1998 (U.S. JGOFS AESOPS project)

Website: https://www.bco-dmo.org/dataset/2776
Version: August 23, 2001
Version Date: 2001-08-23

Project
» U.S. JGOFS Antarctic Environment and Southern Ocean Process Study (AESOPS)

Program
» U.S. Joint Global Ocean Flux Study (U.S. JGOFS)
ContributorsAffiliationRole
Smith, Walker O.Virginia Institute of Marine Science (VIMS)Principal Investigator
Chandler, Cynthia L.Woods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager


Dataset Description

Fluorometric chlorophyll-a

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Parameters

ParameterDescriptionUnits
eventevent number from event log
stastation number from event log
castcast number
cast_typeCTD = CTD rosette TM = trace metal rosette
botrosette bottle number
depth_nnominal sample depth meters
chl_a_fluorchlorophyll-a, fluorometric method micrograms/liter


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Instruments

Dataset-specific Instrument Name
Niskin Bottle
Generic Instrument Name
Niskin bottle
Dataset-specific Description
CTD clean rosette (Niskin) bottles were used to collect water samples.
Generic Instrument Description
A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.

Dataset-specific Instrument Name
Trace Metal Bottle
Generic Instrument Name
Trace Metal Bottle
Dataset-specific Description
Trace metal (TM) clean rosette bottles were used to collect water samples.
Generic Instrument Description
Trace metal (TM) clean rosette bottle used for collecting trace metal clean seawater samples.


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Deployments

KIWI6

Website
Platform
R/V Roger Revelle
Report
Start Date
1997-10-20
End Date
1997-11-24
Description
Polar Front Survey I

Acquisition Description
PI: Walker O. Smith of: University of Tennessee dataset: Fluorometric chlorophyll-a dates: October 23, 1997 to November 18, 1997 location: N: -56.9998 S: -62.3658 W: -171.9 E: -168.0622 project/cruise: AESOPS KIWI6, APFZ Polar Front Survey cruise 1 ship: Roger Revelle Methodology: Please see Chapter 14 of the JGOFS protocols (1994), "Measurement of Chlorophyll a and Phaeopigments by Fluorometric Analysis" PI-Notes on Methodology: 25mm GF/F filters Extracted volume = 7mL in 90% Acetone 1.2M HCl = 3 drops Turner Design Analog Field Fluorometer. Blank=0. Calibrated by: S. Polk

KIWI7

Website
Platform
R/V Roger Revelle
Report
Start Date
1997-12-02
End Date
1998-01-03
Description
Polar Front Process I

Acquisition Description
PI: Walker O. Smith of: University of Tennessee dataset: Fluorometric chlorophyll-a dates: December 04, 1997 to December 30, 1997 location: N: -52.9388 S: -64.7418 W: -174.7303 E: -168.8302 project/cruise: AESOPS KIWI7, APFZ Polar Front Process cruise 1 ship: Roger Revelle Methodology: Please see Chapter 14 of the JGOFS protocols (1994), "Measurement of Chlorophyll a and Phaeopigments by Fluorometric Analysis" PI-Notes on Methodology: 25mm GF/F filters Extracted volume = 7mL in 90% Acetone 1.2M HCl = 3 drops Turner Design Analog Field Fluorometer. Blank=0. Calibrated by: J.Postal

KIWI8

Website
Platform
R/V Roger Revelle
Report
Start Date
1998-01-08
End Date
1998-02-08
Description
Polar Front Survey II

Acquisition Description
PI: Walker O. Smith of: University of Tennessee dataset: Fluorometric chlorophyll-a dates: January 10, 1998 to January 28, 1998 location: N: -53.0002 S: -67.7842 W: -175.5483 E: -169.9983 project/cruise: AESOPS KIWI8, APFZ Polar Front Survey cruise 2 ship: Roger Revelle Methodology: Please see Chapter 14 of the JGOFS protocols (1994), "Measurement of Chlorophyll a and Phaeopigments by Fluorometric Analysis" PI-Notes on Methodology: 25mm GF/F filters Extracted volume = 7mL in 90% Acetone 1.2M HCl = 3 drops Turner Design Analog Field Fluorometer. Blank=0. Calibrated by: Sarah H.

KIWI9

Website
Platform
R/V Roger Revelle
Report
Start Date
1998-02-13
End Date
1998-03-19
Description
Polar Front Process II

Acquisition Description
PI: Walker O. Smith of: University of Tennessee dataset: Fluorometric chlorophyll-a dates: February 15, 1998 to March 15, 1998 location: N: -52.966 S: -71.3157 W: -174.7338 E: -165.9145 project/cruise: AESOPS/KIWI09, APFZ Polar Front Process cruise 2 ship: Roger Revelle Methodology: Please see Chapter 14 of the JGOFS protocols (1994), "Measurement of Chlorophyll a and Phaeopigments by Fluorometric Analysis" PI-Notes on Methodology: 25mm GF/F filters Extracted volume = 7mL in 90% Acetone 1.2M HCl = 3 drops Turner Design Analog Field Fluorometer. Blank=0. Calibrated by: A-M White


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Project Information

U.S. JGOFS Antarctic Environment and Southern Ocean Process Study (AESOPS)


Coverage: Southern Ocean, Ross Sea


The U.S. Southern Ocean JGOFS program, called Antarctic Environment and Southern Ocean Process Study (AESOPS), began in August 1996 and continued through March 1998. The U.S. JGOFS AESOPS program focused on two regions in the Southern Ocean: an east/west section of the Ross-Sea continental shelf along 76.5°S, and a second north/south section of the Southern Ocean spanning the Antarctic Circumpolar Current (ACC) at ~170°W (identified as the Polar Front). The science program, coordinated by Antarctic Support Associates (ASA), comprised eleven cruises using the R.V.I.B Nathaniel B. Palmer and R/V Roger Revelle as observational platforms and for deployment and recovery of instrumented moorings and sediment-trap arrays. The Ross-Sea region was occupied on six occasions and the Polar Front five times. Mapping data were obtained from SeaSoar, ADCP, and bathymetric systems. Satellite coverage was provided by the NASA SeaWiFS and the NOAA/NASA Pathfinder programs.



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Program Information

U.S. Joint Global Ocean Flux Study (U.S. JGOFS)


Coverage: Global


The United States Joint Global Ocean Flux Study was a national component of international JGOFS and an integral part of global climate change research.

The U.S. launched the Joint Global Ocean Flux Study (JGOFS) in the late 1980s to study the ocean carbon cycle. An ambitious goal was set to understand the controls on the concentrations and fluxes of carbon and associated nutrients in the ocean. A new field of ocean biogeochemistry emerged with an emphasis on quality measurements of carbon system parameters and interdisciplinary field studies of the biological, chemical and physical process which control the ocean carbon cycle. As we studied ocean biogeochemistry, we learned that our simple views of carbon uptake and transport were severely limited, and a new "wave" of ocean science was born. U.S. JGOFS has been supported primarily by the U.S. National Science Foundation in collaboration with the National Oceanic and Atmospheric Administration, the National Aeronautics and Space Administration, the Department of Energy and the Office of Naval Research. U.S. JGOFS, ended in 2005 with the conclusion of the Synthesis and Modeling Project (SMP).



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