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Mostafa Solgi *1 
, Abbasali Aliakbari Bidokhti2 , Mahdi Mohammad Mahdizadeh3 , Smaeyl Hassanzadeh4 , Hamed Deldar5
, Abbasali Aliakbari Bidokhti2 , Mahdi Mohammad Mahdizadeh3 , Smaeyl Hassanzadeh4 , Hamed Deldar5
1- Department of Space Physics, Institute of Geophysics, University of Tehran, Iran, AND Department of Non-Biologic Atmospheric and Oceanographic Science, Faculty of Marine Science and Technologies, University of Hormozgan, Bandar Abbas, Iran
2- Department of Space Physics, Institute of Geophysics, University of Tehran, 14155-6466, Iran
3- Department of Non-Biologic Atmospheric and Oceanographic Science, Faculty of Marine Science and Technologies, University of Hormozgan, Bandar Abbas, 79177, Iran
4- Faculty of Physics, University of Isfahan, Isfahan, 81746-73441, Iran
5- National Institute of Oceanography and Atmospheric Sciences, Tehran, Iran
2- Department of Space Physics, Institute of Geophysics, University of Tehran, 14155-6466, Iran
3- Department of Non-Biologic Atmospheric and Oceanographic Science, Faculty of Marine Science and Technologies, University of Hormozgan, Bandar Abbas, 79177, Iran
4- Faculty of Physics, University of Isfahan, Isfahan, 81746-73441, Iran
5- National Institute of Oceanography and Atmospheric Sciences, Tehran, Iran
Abstract: (181 Views)
The speed of sound is a function of temperature, salinity and water pressure, and processes caused by vertical gradients of temperature and salinity, such as salt-fingering structures, can affect sound speed and propagation. In this research, the effect of Salt Fingers on the sound signal has been investigated in a laboratory environment and in a homogeneous water tank. In the presence of SF, the amplitude of direct and reflected signals from the surface is reduced, and the signals are received by the receiver with a time delay and with a slight decrease (5-10 dB) in sound power. By increasing the depth of the sound source, the scattering and deflection of the rays and the change in the amplitude of the sound signal are reduced. In the absence of salt fingers, the sound signal is propagated with the least energy loss and the sound rays are deflected towards the surface. But in the presence of SF and with the increase of salinity on the surface, the scattering and loss of the sound signal increases (up to 85 dB) and the sound rays are deflected towards the bottom of the tank. This effect is greater on the rays that propagate with a smaller angle.
Type of Study: Research Paper |
Subject:
Environmental Study
Received: 2024/03/3 | Accepted: 2025/05/6
Received: 2024/03/3 | Accepted: 2025/05/6
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فایل صوتی چکیده مقاله [MP3 1747 KB] (6 Download)
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