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Mobile distributed temperature sensing of the air–water interface of an aquatic environment with an unmanned surface vehicle


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Created: Mar 31, 2018 at 7:37 p.m.
Last updated: Apr 09, 2018 at 8:39 p.m.
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Abstract

Aquatic habitats have a boundary layer near the air–water interface (AWI) that governs mass transport. Little is known about temperature profiles and boundary layers at the AWI. We used a high-resolution distributed temperature sensing (HR-DTS) system onboard an unmanned surface vehicle (USV) to resolve temperature profiles from about 1 m above and 1 m below the surface of the water. Our USV–HR-DTS system resolved a temperature differential of about 5.5 °C at the AWI, spanning a distance of approximately 13 cm. DTS profiles were similar for stationary holds and forward and reverse transects in the water. There was a significant change in temperature as a function of height, with an exponential decrease in temperature starting around 13 cm down to the AWI (P = 2 × 10−16). This is the first application of a HR-DTS onboard a USV to examine temperature profiles across the AWI. To our knowledge, these are the first high-resolution temperature profiles of the AWI captured from a mobile platform. Because our USV–HR-DTS system is mobile, it could be used to profile temperatures at the AWI at multiple locations in a large body of water. This technology could also find unique applications in the measurement of meteorological drivers of hazardous agent dispersal for source localization efforts.

Raw project data is available by contacting ctemps@unr.edu

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How to Cite

Powers, C. (2018). Mobile distributed temperature sensing of the air–water interface of an aquatic environment with an unmanned surface vehicle, HydroShare, http://www.hydroshare.org/resource/f1f49d7d7956450f93dc2193b2f5bbec

This resource is shared under the Creative Commons Attribution CC BY.

 http://creativecommons.org/licenses/by/4.0/
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