In situ measurement of time-series two dimensional O2 distributions at sediment-water interface using a planar O2 optode system connected with a submarine cable

The first long time monitoring of O 2 dynamics at sediment-water interface (SWI) was conducted using with a newly developed planar O 2 optode system for in situ measurement. The monitoring was carried out connecting the optode system with Hatsushima permanent station with a 100 meter-long extension...

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Published in2007 Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies pp. 367 - 370
Main Authors Oguri, K., Kitazato, H., Glud, R.N., Stahl, H., Wenzhofer, F., Asakawa, K., Iwase, R., Sakai, S., Nomaki, H., Fujikura, K.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2007
Subjects
Charge-coupled image sensors
Instruments
Marine technology
Monitoring
Phosphorescence
Power supplies
Remotely operated vehicles
Sea measurements
Sensor phenomena and characterization
Underwater cables
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Summary:The first long time monitoring of O 2 dynamics at sediment-water interface (SWI) was conducted using with a newly developed planar O 2 optode system for in situ measurement. The monitoring was carried out connecting the optode system with Hatsushima permanent station with a 100 meter-long extension cable under supporting by the operation of ROV Hyper-dolphin. The monitoring was successfully carried out for 113.3 hours. During the experiment, 3,141 two dimensional O 2 profiles and the corresponding pseudo-grayscale images across SWI were obtained, respectively. From the results, further understanding of new insights on dynamic interactions between fauna activities and environmental changes are expected.
ISBN:9781424412075
1424412072
DOI:10.1109/UT.2007.370814