Collection of water samples from an autonomous underwater vehicle for tracer analysis

Dodd, Paul A., Price, Martin R., Heywood, Karen J. ORCID: and Pebody, Miles (2006) Collection of water samples from an autonomous underwater vehicle for tracer analysis. Journal of Atmospheric and Oceanic Technology, 23 (12). pp. 1759-1767. ISSN 1520-0426

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A compact water sampler rated to full ocean depth has been deployed from an autonomous underwater vehicle (AUV) to enable oceanographic tracer measurements. Techniques developed to allow the instrument to collect up to 49 samples of sufficient purity for tracer measurement without the need for extensive flushing have increased its sampling frequency, allowing a 200-mL seawater sample to be collected in 10 min. This is achieved by flushing the instrument and sample containers before deployment with a fluid of known properties that can be detected after recovery using salinity analysis. A deployment in which water samples were collected for oxygen isotope ratio analysis is presented as an example. Factors limiting the reliability of the instrument when deployed from an AUV are identified and procedures are developed to address critical problems.

Item Type: Article
Uncontrolled Keywords: water samplers,tracer measurements,instrument flushing,sampling instruments,flushing time
Faculty \ School: Faculty of Science > School of Environmental Sciences
Depositing User: Rosie Cullington
Date Deposited: 25 Jan 2011 14:39
Last Modified: 24 Oct 2022 01:46
DOI: 10.1175/JTECH1935.1

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