Development and application of a novel miniature in situ microprofiler (NAFRI BelpI)

We have developed a novel miniature in situ microprofiler (NAFRI Belp I ) for coastal and deep-sea studies. The Belp I can carry up to three oxygen microsensors, and it allows for simultaneous replicate measurements in a relatively small area. All functions can be controlled and programmed via a sma...

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Bibliographic Details
Published in:Ocean science journal 2012, 47(4), , pp.489-495
Main Authors: Lee, Jae Seong, Kim, Eun-Soo, Kahng, Sung-Hyun, Yoon, Seok-Hyun, Cho, Jin-Hyung, Bahk, Kyung-Soo, Kang, Dong-Jin
Format: Article
Language:English
Subjects:
Aquatic Pollution
Earth and Environmental Science
Earth Sciences
Marine & Freshwater Sciences
Oceanography
Waste Water Technology
Water Management
Water Pollution Control
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Summary:We have developed a novel miniature in situ microprofiler (NAFRI Belp I ) for coastal and deep-sea studies. The Belp I can carry up to three oxygen microsensors, and it allows for simultaneous replicate measurements in a relatively small area. All functions can be controlled and programmed via a small magnetic bar and three reed switches; this feature facilitates the initial setup both onboard and underwater. The large LCD window shows basic information such as the movement intervals of the linear stage, number of replicate measurements, waiting time between measurements, and the pA from the microsensors. From high-resolution vertical profiles of oxygen in coastal sediment measured using the microsensors, the diffusivity boundary layer thicknesses was determined to be in the range 0.30–0.35 mm. In addition, the time-series measurement of oxygen profiles in permeable sandy sediment showed advective transport of oxygen into pore water by tidal agitation. Two examples of in situ measurement using a Belp I suggest that it can be widely applied to the study of the sediment-water interface.
ISSN:1738-5261
2005-7172
DOI:10.1007/s12601-012-0044-0