The study of layering structure of outlfow from the Persian Gulf to Gulf of Oman and it's impact on propagation of sound with acoustic sources about outflow intrusion at spring
In this study, variations of field data such as temperature, salinity and sound of speed in horizontal and across transects of the Gulf of Oman were analyzed using CTD data acquired by international project, Joint Global Ocean Flux Study (JGOFS) during the spring of 1996. Results indicate that at all sections, at depths between 120 m to 276m in Gulf of Oman to 60 °E, finestructures were found; this indicates mixing with surrounding waters by thermohaline intrusions. These thermohaline intrusions caused temperature and salinity inversion that causes inversion of sound speed profile. Thickness inversion at the stations near the Strait of Hormuz is about 156 m and at stations far from the Strait of Hormuz (near the Oman of Sea) is about 80m. By previous studies, this outflow intrusion causes the internal waves in the Gulf of Oman. These results suggest that formation of intrusion depends on the intermittent outflow through the Strait of Hormuz. In this survey, high salinity water and high temperature water masses spread into the Persian Gulf at an intermediate level, in the Gulf of Oman. In this research, the acoustic propagation characteristics (transmission loss, amplitude of signal and travel time of signal) up, below and into, of the outflow intrusion were assessed based on the output of a range-dependant acoustic model and range independent acoustic model. In general, the occurrence of this thermohaline intrusion was found to alter the propagation characteristics.
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Format: | article biblioteca |
Language: | Persian |
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2014
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Subjects: | Oceanography, Thermohaline intrusion, Acoustic propagation Model, Acoustic propagation characteristics, Structure, Gulf of Oman, Persian Gulf, Iran, |
Online Access: | http://hdl.handle.net/1834/39311 |
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dig-aquadocs-1834-393112021-07-16T01:49:09Z The study of layering structure of outlfow from the Persian Gulf to Gulf of Oman and it's impact on propagation of sound with acoustic sources about outflow intrusion at spring Aakbarinasab, M. Sadrinasab, M. Bidokhti, A.A. Chegini, V. Oceanography Thermohaline intrusion Acoustic propagation Model Acoustic propagation characteristics Structure Gulf of Oman Persian Gulf Iran In this study, variations of field data such as temperature, salinity and sound of speed in horizontal and across transects of the Gulf of Oman were analyzed using CTD data acquired by international project, Joint Global Ocean Flux Study (JGOFS) during the spring of 1996. Results indicate that at all sections, at depths between 120 m to 276m in Gulf of Oman to 60 °E, finestructures were found; this indicates mixing with surrounding waters by thermohaline intrusions. These thermohaline intrusions caused temperature and salinity inversion that causes inversion of sound speed profile. Thickness inversion at the stations near the Strait of Hormuz is about 156 m and at stations far from the Strait of Hormuz (near the Oman of Sea) is about 80m. By previous studies, this outflow intrusion causes the internal waves in the Gulf of Oman. These results suggest that formation of intrusion depends on the intermittent outflow through the Strait of Hormuz. In this survey, high salinity water and high temperature water masses spread into the Persian Gulf at an intermediate level, in the Gulf of Oman. In this research, the acoustic propagation characteristics (transmission loss, amplitude of signal and travel time of signal) up, below and into, of the outflow intrusion were assessed based on the output of a range-dependant acoustic model and range independent acoustic model. In general, the occurrence of this thermohaline intrusion was found to alter the propagation characteristics. 2021-06-24T18:17:57Z 2021-06-24T18:17:57Z 2014 article TRUE 2008-8965 http://hdl.handle.net/1834/39311 fa http://kmsu.ac.ir/ application/pdf application/pdf 110-120 http://aquaticcommons.org/id/eprint/24905 18721 2018-11-22 07:14:05 24905 Khorramshahr University of Marine Science and Technology |
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Oceanography Thermohaline intrusion Acoustic propagation Model Acoustic propagation characteristics Structure Gulf of Oman Persian Gulf Iran Oceanography Thermohaline intrusion Acoustic propagation Model Acoustic propagation characteristics Structure Gulf of Oman Persian Gulf Iran |
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Oceanography Thermohaline intrusion Acoustic propagation Model Acoustic propagation characteristics Structure Gulf of Oman Persian Gulf Iran Oceanography Thermohaline intrusion Acoustic propagation Model Acoustic propagation characteristics Structure Gulf of Oman Persian Gulf Iran Aakbarinasab, M. Sadrinasab, M. Bidokhti, A.A. Chegini, V. The study of layering structure of outlfow from the Persian Gulf to Gulf of Oman and it's impact on propagation of sound with acoustic sources about outflow intrusion at spring |
description |
In this study, variations of field data such as temperature, salinity and sound of speed in horizontal and across transects of the Gulf of Oman were analyzed using CTD data acquired by international project, Joint Global Ocean Flux Study (JGOFS) during the spring of 1996. Results indicate that at all sections, at depths between 120 m to 276m in Gulf of Oman to 60 °E, finestructures were found; this indicates mixing with surrounding waters by thermohaline intrusions. These thermohaline intrusions caused temperature and salinity inversion that causes inversion of sound speed profile. Thickness inversion at the stations near the Strait of Hormuz is about 156 m and at stations far from the Strait of Hormuz (near the Oman of Sea) is about 80m. By previous studies, this outflow intrusion causes the internal waves in the Gulf of Oman. These results suggest that formation of intrusion depends on the intermittent outflow through the Strait of Hormuz. In this survey, high salinity water and high temperature water masses spread into the Persian Gulf at an intermediate level, in the Gulf of Oman. In this research, the acoustic propagation characteristics (transmission loss, amplitude of signal and travel time of signal) up, below and into, of the outflow intrusion were assessed based on the output of a range-dependant acoustic model and range independent acoustic model. In general, the occurrence of this thermohaline intrusion was found to alter the propagation characteristics. |
format |
article |
topic_facet |
Oceanography Thermohaline intrusion Acoustic propagation Model Acoustic propagation characteristics Structure Gulf of Oman Persian Gulf Iran |
author |
Aakbarinasab, M. Sadrinasab, M. Bidokhti, A.A. Chegini, V. |
author_facet |
Aakbarinasab, M. Sadrinasab, M. Bidokhti, A.A. Chegini, V. |
author_sort |
Aakbarinasab, M. |
title |
The study of layering structure of outlfow from the Persian Gulf to Gulf of Oman and it's impact on propagation of sound with acoustic sources about outflow intrusion at spring |
title_short |
The study of layering structure of outlfow from the Persian Gulf to Gulf of Oman and it's impact on propagation of sound with acoustic sources about outflow intrusion at spring |
title_full |
The study of layering structure of outlfow from the Persian Gulf to Gulf of Oman and it's impact on propagation of sound with acoustic sources about outflow intrusion at spring |
title_fullStr |
The study of layering structure of outlfow from the Persian Gulf to Gulf of Oman and it's impact on propagation of sound with acoustic sources about outflow intrusion at spring |
title_full_unstemmed |
The study of layering structure of outlfow from the Persian Gulf to Gulf of Oman and it's impact on propagation of sound with acoustic sources about outflow intrusion at spring |
title_sort |
study of layering structure of outlfow from the persian gulf to gulf of oman and it's impact on propagation of sound with acoustic sources about outflow intrusion at spring |
publishDate |
2014 |
url |
http://hdl.handle.net/1834/39311 |
work_keys_str_mv |
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