Shipboard thermosalinograph intercomparison test results from the NOAA research vessel Malcolm Baldrige

Bitterman, D.S.; Millard, R.C.

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The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.

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Shipboard thermosalinograph intercomparison test results from the NOAA research vessel Malcolm Baldrige

1994
By Bitterman, D.S. ; Millard, R.C.
Series: NOAA Technical Memorandum ERL AOML ; 82

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Personal Author:

Bitterman, D.S. ; Millard, R.C.

Bitterman, D.S. ; Millard, R.C. Less -
Corporate Authors:

Atlantic Oceanographic and Meteorological Laboratory
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; AOML (Atlantic Oceanographic and Meteorological Laboratory)

OAR (Oceanic and Atmospheric Research) ; AOML (Atlantic Oceanographic and Meteorological Laboratory) Less -
Description:

An intercomparison test of three commercially available thermosalinographs (TSGs) considered for installation on volunteer observing ships of opportunity was conducted onboard the NOAA Ship Malcolm Baldrige during the period June 2 to September 22, 1993. A Seabird Electronics Company (SBE) Model SBE-21 TSG, a Falmouth Scientific Instruments, Inc. (FSI) TSG, and an Ocean Sensors Instrument, Inc. (OSI) Model OS-200 TSG were evaluated in the test. The three systems were plumbed in series and run continuously for all four months of the cruise. Temperature and conductivity measurements from each TSG were logged to a personal computer (PC). Water samples were drawn every six hours and analyzed for salinity. After removing anomalous sections of data, a drift rate for each instrument was then determined by comparing the thermosalinograph computed salinities to those from the water samples. The OSI thermosalinograph exhibited a salinity drift rate of +0.00738 practical salinity units (psu) per day, the FSI drift rate was +0.001 psu per day, and the SBE drift rate was +0.00063 psu per day. The salinity drift is composed of both conductivity and temperature drifts. The OSI and FSI temperature measurements exhibited systematic temperature errors under various conditions encountered during the test. The SBE TSG needs to improve the flushing of their conductivity cell.
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Chemical Oceanography Malcolm Baldrige (Ship)
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NOAA Technical Memorandum ERL AOML ; 82
Document Type:

Technical Memorandum
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https://creativecommons.org/publicdomain/zero/1.0/
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CC0 Public Domain
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urn:sha256:4b39d7c80b6ec22976f2b136cc9c61437e35feef966b91723ba61f147af5786a
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https://repository.library.noaa.gov/view/noaa/29435/noaa_29435_DS1.pdf
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Shipboard thermosalinograph intercomparison test results from the NOAA research vessel Malcolm Baldrige

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