Range-and depth averaged temperature measurement of the coastal sea using Acoustic Tomography technique

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Bahreinimotlagh Masoud; khaki iman; Roozbahani Reza; Zohrabi Yones; KARDAN MOGHADDAM HAMID

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Journal: Journal of Natural Environment Year:2021 | Volume:73 | Issue:4 Page(s): 637-647

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Title

Range-and depth averaged temperature measurement of the coastal sea using Acoustic Tomography technique

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Keywords

Coastal temperature monitoringQ1

10-kHz Coastal Acoustic Tomography SystemQ1

Continuous and real-time monitoringQ1

Abstract

In recent decades, rising sea temperatures have become one of the most important environmental hazards, endangering the lives of marine plants and creatures. Therefore, continuous, long-term, and real-time monitoring of sea water temperature is of great importance and can provide valuable information to environmental experts. Acoustic Tomography (AT) technology is one of the most effective tools for sea monitoring. AT systems are located around the aquatic environment and transmit sound waves simultaneously. Then, using the mean arrival time of the sound waves, the seawater temperature is calculated. In this study, the 10-kHz AT system was first tested in the Water Research Institutes’ channel and evaluated with a temperature sensor. The results showed that the water temperature between the two acoustic stations is 18 ˚ C and corresponds exactly to the one of the temperature sensor. In the second experiment, the temperature of the water currents between the two islands was measured at a distance of approximately 4, 500 m. The range-and depth averaged flow temperature passing between the two islands was measured per minute, and then using a moving average of 30 minutes (30 data), the temperature measurement error was reduced from 7. 2 to 1. 3 ˚ C. The temperature during the measurement period was approximately 28 ˚ C. Due to the existence of numerous islands in the Persian Gulf, the use of AT technique is recommended for continuous, long-term, and real-time monitoring of coastal temperature.

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APA: Copy

Bahreinimotlagh, Masoud, khaki, iman, Roozbahani, Reza, Zohrabi, Yones, & KARDAN MOGHADDAM, HAMID. (2021). Range-and depth averaged temperature measurement of the coastal sea using Acoustic Tomography technique. JOURNAL OF NATURAL ENVIRONMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), 73(4 ), 637-647. SID. https://sid.ir/paper/397445/en

Vancouver: Copy

Bahreinimotlagh Masoud, khaki iman, Roozbahani Reza, Zohrabi Yones, KARDAN MOGHADDAM HAMID. Range-and depth averaged temperature measurement of the coastal sea using Acoustic Tomography technique. JOURNAL OF NATURAL ENVIRONMENT (IRANIAN JOURNAL OF NATURAL RESOURCES)[Internet]. 2021;73(4 ):637-647. Available from: https://sid.ir/paper/397445/en

IEEE: Copy

Masoud Bahreinimotlagh, iman khaki, Reza Roozbahani, Yones Zohrabi, and HAMID KARDAN MOGHADDAM, “Range-and depth averaged temperature measurement of the coastal sea using Acoustic Tomography technique,” JOURNAL OF NATURAL ENVIRONMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), vol. 73, no. 4 , pp. 637–647, 2021, [Online]. Available: https://sid.ir/paper/397445/en

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