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Testing of a towed CTD

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Abstract

The results of laboratory and field experiments on a CTD measuring unit attached to a controllable towed body is described. It was verified that the three-dimensional distribution of salinity and temperature could be observed with sufficient accuracy (to 0.03‰ in salinity and to 0.01°C in temperature if proper correction is adopted) while cruising at up to 4 knots. A double integrated A/D converter is used to compensate for effects of extraneous environmental changes.

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References

  • Roden, G. I. andJ. D. Irish (1975): Electronic digitization and sensor response effects on salinity computation from CTD field measurements. J. Phys. Oceanogr.,5, 195–199.

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  • Sasaki, K., M. Nomoto, T. Hara andY. Tsuji (1978): Notes on the towing experiments of a towed vehicle installed with CTD measuring sensors with special reference to the motion of the vehicle. Tech. Rep. Japan Mar. Sci. Technol. Center (2). 71–81.

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Authors and Affiliations

  1. National Research Center for Disaster Prevention, Tennôdai 3-chôme, Sakura-mura, Niihari-gun, 305, Ibaraki-ken, Japan

    Yukio Fujinawa

  2. National Research Center for Disaster Prevention, Nijigahama 9-2, Hiratsuka-shi, 254, Kanagawa-ken, Japan

    Yoshinobu Tsuji & Isao Watabe

  3. Japan Marine Science and Technology Center, Natsushima 2-5, Yokosuka-shi, 237, Kanagawa-ken, Japan

    Ken Sasaki, Masao Nomoto, Toshiaki Hara & Yoshito Tsuji

Authors
  1. Yukio Fujinawa
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  2. Yoshinobu Tsuji
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  3. Isao Watabe
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  4. Ken Sasaki
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  5. Masao Nomoto
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  6. Toshiaki Hara
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  7. Yoshito Tsuji
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Fujinawa, Y., Tsuji, Y., Watabe, I. et al. Testing of a towed CTD. Journal of the Oceanographical Society of Japan 36, 253–258 (1980). https://doi.org/10.1007/BF02072126

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  • DOI: https://doi.org/10.1007/BF02072126

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