Active high-frequency acoustic thermometry of frozen water-saturated media
The article discusses promising method of active high-frequency acoustic thermometry, which measures the duration of the backscattering signal of ultrasonic pulses Delta t in the upper layer of water-saturated rocks or seabed sediments. An acoustic model is proposed to explain the strong temperature...
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fttomskstateuniv:koha:001015414 2024-01-07T09:41:23+01:00 Active high-frequency acoustic thermometry of frozen water-saturated media Yusupov, Vladimir I. Semiletov, Igor P. Chernykh, Denis V. Salomatin, Aleksandr S. 2022 https://doi.org/10.1134/S1063771022050128 https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001015414 eng eng koha:001015414 doi:10.1134/S1063771022050128 https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001015414 Acoustical physics. 2022. Vol. 68, № 5. P. 459-466 обратное рассеяние акустические сигналы вечная мерзлота арктический шельф акустическая термометрия статьи в журналах info:eu-repo/semantics/article 2022 fttomskstateuniv https://doi.org/10.1134/S1063771022050128 2023-12-12T17:42:13Z The article discusses promising method of active high-frequency acoustic thermometry, which measures the duration of the backscattering signal of ultrasonic pulses Delta t in the upper layer of water-saturated rocks or seabed sediments. An acoustic model is proposed to explain the strong temperature dependence of the duration of this signal in the region of zero and negative temperatures. It is shown that Delta t increases with decreasing temperature due to an increase in the reflection coefficient of ultrasonic waves from a layered structure and to a decrease in the absorption coefficient in a water-saturated medium. Field studies carried out on a vast area of the Arctic shelf confirmed the existence of such a dependence. The proposed approach can be effective for remote monitoring of temperature changes in frozen water-saturated rocks on land and in the upper layer of seabed sediments on the shallow Arctic shelf, which is necessary to estimate various environmental risks associated with global warming. Article in Journal/Newspaper Arctic Global warming вечная мерзлота Tomsk State University Research Library Arctic Acoustical Physics 68 5 459 466 |
institution |
Open Polar |
collection |
Tomsk State University Research Library |
op_collection_id |
fttomskstateuniv |
language |
English |
topic |
обратное рассеяние акустические сигналы вечная мерзлота арктический шельф акустическая термометрия |
spellingShingle |
обратное рассеяние акустические сигналы вечная мерзлота арктический шельф акустическая термометрия Yusupov, Vladimir I. Semiletov, Igor P. Chernykh, Denis V. Salomatin, Aleksandr S. Active high-frequency acoustic thermometry of frozen water-saturated media |
topic_facet |
обратное рассеяние акустические сигналы вечная мерзлота арктический шельф акустическая термометрия |
description |
The article discusses promising method of active high-frequency acoustic thermometry, which measures the duration of the backscattering signal of ultrasonic pulses Delta t in the upper layer of water-saturated rocks or seabed sediments. An acoustic model is proposed to explain the strong temperature dependence of the duration of this signal in the region of zero and negative temperatures. It is shown that Delta t increases with decreasing temperature due to an increase in the reflection coefficient of ultrasonic waves from a layered structure and to a decrease in the absorption coefficient in a water-saturated medium. Field studies carried out on a vast area of the Arctic shelf confirmed the existence of such a dependence. The proposed approach can be effective for remote monitoring of temperature changes in frozen water-saturated rocks on land and in the upper layer of seabed sediments on the shallow Arctic shelf, which is necessary to estimate various environmental risks associated with global warming. |
format |
Article in Journal/Newspaper |
author |
Yusupov, Vladimir I. Semiletov, Igor P. Chernykh, Denis V. Salomatin, Aleksandr S. |
author_facet |
Yusupov, Vladimir I. Semiletov, Igor P. Chernykh, Denis V. Salomatin, Aleksandr S. |
author_sort |
Yusupov, Vladimir I. |
title |
Active high-frequency acoustic thermometry of frozen water-saturated media |
title_short |
Active high-frequency acoustic thermometry of frozen water-saturated media |
title_full |
Active high-frequency acoustic thermometry of frozen water-saturated media |
title_fullStr |
Active high-frequency acoustic thermometry of frozen water-saturated media |
title_full_unstemmed |
Active high-frequency acoustic thermometry of frozen water-saturated media |
title_sort |
active high-frequency acoustic thermometry of frozen water-saturated media |
publishDate |
2022 |
url |
https://doi.org/10.1134/S1063771022050128 https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001015414 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Global warming вечная мерзлота |
genre_facet |
Arctic Global warming вечная мерзлота |
op_source |
Acoustical physics. 2022. Vol. 68, № 5. P. 459-466 |
op_relation |
koha:001015414 doi:10.1134/S1063771022050128 https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001015414 |
op_doi |
https://doi.org/10.1134/S1063771022050128 |
container_title |
Acoustical Physics |
container_volume |
68 |
container_issue |
5 |
container_start_page |
459 |
op_container_end_page |
466 |
_version_ |
1787422196387282944 |