Performance Verification Statement for the Idronaut Ocean Seven 305 Plus CTD.
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The Alliance for Coastal Technology (ACT) conducted a sensor verification study of in situ pH sensors during 2013 and 2014 to characterize performance measures of accuracy and reliability in a series of controlled laboratory studies and field mooring tests in diverse coastal environments. A ten week long laboratory study was conducted at the Hawaii Institute of Marine Biology and involved week long exposures at a full range of temperature and salinity conditions. Tests were conducted at three fixed salinity levels (0.03, 22, 35) at each of three fixed temperatures (10, 20, 30 oC). Ambient pH in the test tank was allowed to vary naturally over the first five days. On the sixth day the pH was rapidly modified using acid/base additions to compare accuracy over an extended range and during rapid changes. On the seventh day the temperature was rapidly shifted to the next test condition. On the tenth week a repeated seawater trial was conducted for two days while the temperature wa.....
PublisherAlliance for Coastal Technologies (ACT)
Series;NrACT VS; 15-03
Essential Ocean Variables (EOV)Sea surface temperature
Best Practice TypeBest Practice
Standard Operating Procedure
CitationJohengen, T.; Smith, G.J.; Schar, D.; Atkinson, M.; Purcell, H.; Loewensteiner, D.; Epperson, Z. and Tamburri, M. (2015) Performance Verification Statement For the Idronaut Ocean Seven 305 Plus CTD. Solomons, MD, Alliance for Coastal Technologies, 57pp. (ACTVS15-03). http://dx.doi.org/10.25607/OBP-303
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