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"

被引：2

作者：

Latushkin, A. A. ^{[1
]}

Ponomarev, V. I. ^{[2
]}

Salyuk, P. A. ^{[3
]}

Frey, D. I. ^{[4
]}

Lipinskaya, N. A. ^{[5
]}

Shkorba, S. P. ^{[6
]}

机构：

[1] RAS, Marine Hydrophys Inst, 2 Kapitanskaya Str, Sevastopol 299011, Russia

[2] POI FEB RAS, Lab Expt Climatol, 43 Baltiyskaya Str, Vladivostok 690041, Russia

[3] POI FEB RAS, Lab Satellite Oceanol & Laser Probing, 43 Baltiyskaya Str, Vladivostok 690041, Russia

[4] Russian Acad Sci, Shirshov Inst Oceanol, Lab Hydrol Proc, 36 Nakhimovskiy Prospect, R-117997 Moscow, Russia

[5] POI FEB RAS, Lab Expt Climatol, 43 Baltiyskaya Str, Vladivostok 690041, Russia

[6] POI FEB RAS, Lab Hydrol Proc & Climate, 43 Baltiyskaya Str, Vladivostok 690041, Russia

来源：

PHYSICAL OCEANOGRAPHY | 2023年 / 30卷 / 01期

关键词：

Antarctic Sound; mesoscale eddies; hydrooptics; hydrology; beam attenuation coefficient; chlorophyll a concentration; fluorescence; dissolved organic matter; remote sensing; BRANSFIELD STRAIT; MESOSCALE CIRCULATION; EDDIES; TRANSPORT; EASTERN; WATER; EDDY; DEEP;

D O I：

10.22449/1573-160X-2023-1-47-61

中图分类号：

P7 [海洋学];

学科分类号：

0707 ;

摘要：

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.

引用

页码：47 / 61

页数：15