Ecological Safety of Coastal and Shelf Zones of Sea Ecological Safety of Coastal and Shelf Zones of Sea 2413-5577 20230111 Research Article Thermoprolferometer for Measuring the Vertical Temperature Distribution in the Upper 100-Meter Layer of the Sea and its Testing in the Arctic Basin Gaisky P. V. gaysky@inbox.ru Kozlov I. E. ik@mhi-ras.ru Marine Hydrophysical Institute of RAS Sevastopol Russia 24 03 2023 2023 1 137 145 18 08 2022 01 02 2023 11 10 2022 Copyright © 2023, P. V. Gaisky, I. E. Kozlov 2023 P. V. Gaisky, I. E. Kozlov https://creativecommons.org/licenses/by-nc/4.0/ https://ecological-safety.ru/en/repository/issues/2023/01/11/

The paper describes the technical and methodological aspects of development of an experimental sample of a distributed temperature sensor. The thermoprolferometer is created for Arctic studies of the thermal near-surface structure of marine environment, including vertical temperature profiles, detection of thermocline and internal waves. The temperature-sensitive part of the sensor built on the basis of continuous spatially modulated conductors measures 48 m. The spatial-averaged resolution is 1.5 m. The sensor can be used in static and dynamic measurement modes, including sounding and towing. Control of the depth of the measuring part is carried out using hydrostatic pressure sensors located at the ends of the sensor. The specialized software provides the display with measuring information in the form of instantaneous temperature profiles as well as in the form of the dynamics of temperature isolines with reference to depth and time, in telemetric mode and during post-processing. The calculated isolines provide automatic control of the spatial vertical displacement of the thermocline, and the amplitude and period of internal waves. An experimental sample of the device was used in Arctic studies in 2021.

 distributed temperature sensor thermoprolferometer isotherm heat storage thermocline internal waves temperature field heat exchange termistor chain The research was performed under state assignment on topic no. 0555-2021-0004 (creation of the thermoprolferometer) and RSF grant no. 21-17-00278 (in situ measurements of internal waves in the Arctic Ocean).

About the authors:

Pavel V. Gaisky, Leading Research Associate, Head of Innovation Marine Instrument Engineering Laboratory of SCU, Marine Hydrophysical Institute of RAS (2 Kapitanskaya St., Sevastopol, 299011, Russian Federation), Ph.D. (Tech.), Scopus Author ID: 7801588003, SPIN-code: 7789-0658, gaysky@inbox.ru

Igor E. Kozlov, Leading Research Associate, Head of Polar Marine Research Laboratory, Marine Hydrophysical Institute of RAS (2 Kapitanskaya St., Sevastopol, 299011, Russian Federation), Ph.D. (Phys.-Math.), ORCID ID: 0000-0001-6378-8956, ResearcherID: G-1103-2014, Scopus Author ID: 49963767500, ik@mhi-ras.ru

Contributions of the authors:

Pavel V. Gaisky – development and production of the device, development of the software

Igor E. Kozlov – testing the device during an Arctic expedition, analysis of measurement data

All the authors have read and approved the final manuscript.

Article text not included.

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