Distribution of Optical and Hydrological Characteristics in the Antarctic Sound Based on the Measurements in January, 2022 in the 87th cruise of the R/V “Akademik Mstislav Keldysh”
Purpose. The purpose of the work is to study the different-scale features of distribution of the hydrooptical and hydrological characteristics in the Antarctic Sound based on the contact and satellite measurements carried out in January, 2022 in the 87th cruise of the R/V “Akademik Mstislav Keldysh”...
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Federal State Budget Scientific Institution «Marine Hydrophysical Institute of RAS»
2023
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ftdoajarticles:oai:doaj.org/article:b58b21d64f344d8eb8e5574e8de0dc4a 2023-09-05T13:15:16+02:00 Distribution of Optical and Hydrological Characteristics in the Antarctic Sound Based on the Measurements in January, 2022 in the 87th cruise of the R/V “Akademik Mstislav Keldysh” A.A. Latushkin V.I. Ponomarev P.A. Salyuk D.I. Frey N.A. Lipinskaya S.P. Shkorba 2023-02-01T00:00:00Z https://doaj.org/article/b58b21d64f344d8eb8e5574e8de0dc4a EN eng Federal State Budget Scientific Institution «Marine Hydrophysical Institute of RAS» http://physical-oceanography.ru/repository/2023/1/en_202301_04.pdf https://doaj.org/toc/1573-160X 1573-160X https://doaj.org/article/b58b21d64f344d8eb8e5574e8de0dc4a Physical Oceanography, Vol 30, Iss 1, Pp 47-61 (2023) antarctic sound mesoscale eddies hydrooptics hydrology beam attenuation coefficient chlorophyll a concentration fluorescence dissolved organic matter remote sensing Oceanography GC1-1581 article 2023 ftdoajarticles 2023-08-13T00:37:59Z Purpose. The purpose of the work is to study the different-scale features of distribution of the hydrooptical and hydrological characteristics in the Antarctic Sound based on the contact and satellite measurements carried out in January, 2022 in the 87th cruise of the R/V “Akademik Mstislav Keldysh”. Methods and Results. The data of complex natural measurements performed at the oceanographic stations in the Antarctic Sound on January 27–28, 2022 in the 87th cruise of the R/V “Akademik Mstislav Keldysh” were used. Additionally, the satellite data were analyzed. Complex hydrophysical equipment permitted to obtain the vertical profiles of temperature, salinity, dissolved oxygen, chlorophyll a concentration, fluorescence intensity of colored dissolved organic matter, intensity of the beam attenuation coefficient at 660 nm and photosynthetically active radiation. Based on these data, the main features of mesoscale circulation within the cyclonic gyre over the deep-sea part in the southern Antarctic Sound were determined. The joint analysis of hydrooptical and hydrological characteristics, and satellite measurements in the Antarctic Sound obtained in course of the Antarctic expedition showed presence of a system of the alternating anticyclonic and cyclonic eddies in the area under study. It is also shown that in the ice drift area polluted by land soils or shelf bottom sediments, a zone of the increased turbidity arises that is related to the terrigenous suspension entering into the water during ice melting. Conclusions. The system of the different-scales eddies and currents in the Antarctic Sound contributes to the water exchange between the upper and deep layers of the strait, as well as between the Weddell Sea water spreading to the north-northwest along the slope of the strait basin adjacent to the shelf edge of the Antarctic Peninsula and the Bransfield Straight waters spreading along the slope of the islands’ shelf which is the northeastern boundary of the strait. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Weddell Sea Directory of Open Access Journals: DOAJ Articles Antarctic Antarctic Peninsula Antarctic Sound ENVELOPE(-56.500,-56.500,-63.500,-63.500) The Antarctic Weddell Weddell Sea |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
antarctic sound mesoscale eddies hydrooptics hydrology beam attenuation coefficient chlorophyll a concentration fluorescence dissolved organic matter remote sensing Oceanography GC1-1581 |
spellingShingle |
antarctic sound mesoscale eddies hydrooptics hydrology beam attenuation coefficient chlorophyll a concentration fluorescence dissolved organic matter remote sensing Oceanography GC1-1581 A.A. Latushkin V.I. Ponomarev P.A. Salyuk D.I. Frey N.A. Lipinskaya S.P. Shkorba Distribution of Optical and Hydrological Characteristics in the Antarctic Sound Based on the Measurements in January, 2022 in the 87th cruise of the R/V “Akademik Mstislav Keldysh” |
topic_facet |
antarctic sound mesoscale eddies hydrooptics hydrology beam attenuation coefficient chlorophyll a concentration fluorescence dissolved organic matter remote sensing Oceanography GC1-1581 |
description |
Purpose. The purpose of the work is to study the different-scale features of distribution of the hydrooptical and hydrological characteristics in the Antarctic Sound based on the contact and satellite measurements carried out in January, 2022 in the 87th cruise of the R/V “Akademik Mstislav Keldysh”. Methods and Results. The data of complex natural measurements performed at the oceanographic stations in the Antarctic Sound on January 27–28, 2022 in the 87th cruise of the R/V “Akademik Mstislav Keldysh” were used. Additionally, the satellite data were analyzed. Complex hydrophysical equipment permitted to obtain the vertical profiles of temperature, salinity, dissolved oxygen, chlorophyll a concentration, fluorescence intensity of colored dissolved organic matter, intensity of the beam attenuation coefficient at 660 nm and photosynthetically active radiation. Based on these data, the main features of mesoscale circulation within the cyclonic gyre over the deep-sea part in the southern Antarctic Sound were determined. The joint analysis of hydrooptical and hydrological characteristics, and satellite measurements in the Antarctic Sound obtained in course of the Antarctic expedition showed presence of a system of the alternating anticyclonic and cyclonic eddies in the area under study. It is also shown that in the ice drift area polluted by land soils or shelf bottom sediments, a zone of the increased turbidity arises that is related to the terrigenous suspension entering into the water during ice melting. Conclusions. The system of the different-scales eddies and currents in the Antarctic Sound contributes to the water exchange between the upper and deep layers of the strait, as well as between the Weddell Sea water spreading to the north-northwest along the slope of the strait basin adjacent to the shelf edge of the Antarctic Peninsula and the Bransfield Straight waters spreading along the slope of the islands’ shelf which is the northeastern boundary of the strait. |
format |
Article in Journal/Newspaper |
author |
A.A. Latushkin V.I. Ponomarev P.A. Salyuk D.I. Frey N.A. Lipinskaya S.P. Shkorba |
author_facet |
A.A. Latushkin V.I. Ponomarev P.A. Salyuk D.I. Frey N.A. Lipinskaya S.P. Shkorba |
author_sort |
A.A. Latushkin |
title |
Distribution of Optical and Hydrological Characteristics in the Antarctic Sound Based on the Measurements in January, 2022 in the 87th cruise of the R/V “Akademik Mstislav Keldysh” |
title_short |
Distribution of Optical and Hydrological Characteristics in the Antarctic Sound Based on the Measurements in January, 2022 in the 87th cruise of the R/V “Akademik Mstislav Keldysh” |
title_full |
Distribution of Optical and Hydrological Characteristics in the Antarctic Sound Based on the Measurements in January, 2022 in the 87th cruise of the R/V “Akademik Mstislav Keldysh” |
title_fullStr |
Distribution of Optical and Hydrological Characteristics in the Antarctic Sound Based on the Measurements in January, 2022 in the 87th cruise of the R/V “Akademik Mstislav Keldysh” |
title_full_unstemmed |
Distribution of Optical and Hydrological Characteristics in the Antarctic Sound Based on the Measurements in January, 2022 in the 87th cruise of the R/V “Akademik Mstislav Keldysh” |
title_sort |
distribution of optical and hydrological characteristics in the antarctic sound based on the measurements in january, 2022 in the 87th cruise of the r/v “akademik mstislav keldysh” |
publisher |
Federal State Budget Scientific Institution «Marine Hydrophysical Institute of RAS» |
publishDate |
2023 |
url |
https://doaj.org/article/b58b21d64f344d8eb8e5574e8de0dc4a |
long_lat |
ENVELOPE(-56.500,-56.500,-63.500,-63.500) |
geographic |
Antarctic Antarctic Peninsula Antarctic Sound The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Antarctic Peninsula Antarctic Sound The Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctic Peninsula Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Weddell Sea |
op_source |
Physical Oceanography, Vol 30, Iss 1, Pp 47-61 (2023) |
op_relation |
http://physical-oceanography.ru/repository/2023/1/en_202301_04.pdf https://doaj.org/toc/1573-160X 1573-160X https://doaj.org/article/b58b21d64f344d8eb8e5574e8de0dc4a |
_version_ |
1776197085814587392 |