The carbonate system of the amur estuary and the adjacent marine aquatic areas

Koltunov, A. M.; Tishchenko, P. Ya.; Zvalinskii, V. I.; Chichkin, R. V.; Лобанов, В. Б.; Nekrasov, D. A.

doi:10.1134/s0001437009050051

Cited by 9 publications

(4 citation statements)

References 5 publications

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“…A devia tion from salinity toward a decrease in HS concentra tion can be seen in water salinity range of 0-2.5‰. A similar character of variation of HS concentration as a function of water salinity was observed before for water of the Razdol'naya R. estuary [7][8][9]22] and for the Amur Liman [3,6].…”

Section: Resultssupporting

confidence: 63%

“…The effects of the biogeochemical processes that cause deviations from linearity are of secondary significance. The mixing of sea and river water is commonly accom panied by a conservative linear relationship between the alkalinity and salinity and small deviations from linearity for DIC, caused by production-destruction processes [6]. However, Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The survey was carried out on July [18][19][20]2011. To make the analysis more convenient, the survey was divided into two sections: via the estuary of the Artemovka R. (stations 1-5, 15, 17-19) and via the estuary of the Shkotovka R. (stations [6][7][8][9][10][11][12][13][14][15][16]. In this case, according to a definition given in [28] and amended in [16], by estuary is meant to be the entire examined water area, except for the stations in most remote riverine parts of the area (stations in and 6), which were not reached by seawater during the study.…”

Section: Object and Methods Of Studiesmentioning

confidence: 99%

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Production-destruction processes in estuaries of the rivers of Artemovka and Shkotovka (Usuri Bay) in summer

et al. 2015

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Production and hydrochemical characteristics of the estuaries of the rivers of Artemovka and Shkotovka, flowing into the apex of the Ussuri Bay (the Sea of Japan), were studied in the summer of 2011. Because of the high rate of destruction processes, the partial pressure in river waters of the Shkotovka, Arte movka, and Knevichanka (the Artemovka's major tributary) was 800, 1800, and 3700 µatm, respectively. Unlike the Shkotovka R. estuary, the high trophic level of the Artemovka R. and a favorable combination of hydrological and hydrochemical conditions in the study period determined the high rate of production pro cesses (chlorophyll a concentration reached 200 µg/L, oxygen oversaturation was more than twofold, the par tial pressure of carbon dioxide dropped to 25 µatm). A conservative and nonconservative dependence of alka linity on salinity was also found to exist in the water of the Shkotovka and Artemovka rivers, respectively.

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Section: Resultssupporting

confidence: 63%

Section: Resultsmentioning

confidence: 99%

Section: Object and Methods Of Studiesmentioning

confidence: 99%

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Production-destruction processes in estuaries of the rivers of Artemovka and Shkotovka (Usuri Bay) in summer

et al. 2015

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“…However, large river plumes, including the plumes of anthropogenically loaded rivers, often become CO 2 sinks, even many hundreds of kilometers away from the river mouth [59]. The examples of previously studied river estuaries able to absorb pCO 2 in their plumes are the Yangtze River [60], the Pearl River Estuary [25], Chesapeake Bay [26], the Gulf of Anadyr [47], the Kara Sea, under the influence of the Ob River and the Yenisei River [61], and the estuary of the Amur River [62]. In such basins, only the surface water layer is usually undersaturated with CO 2 , while the magnitude of the pCO 2 increases significantly with the depth of the water column.…”

Section: Comparison With Other Coastal Areas and Estuariesmentioning

confidence: 99%

The Carbonate System of Penzhina Bay and the Shelikhov Gulf in the Sea of Okhotsk during Extreme Tides in Summer

Semkin,

Baigubekov,

Barabanshchikov

et al. 2024

JMSE

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Understanding the factors that control carbonate systems is an important goal due to the complex interactions between the hydrophysical and chemical–biological conditions in coastal basins. The results of this paper present the state of the carbonate system in Penzhina Bay and its adjacent waters—the Shelikhov Gulf—in July 2023, during spring tides with 13 m height. The area we studied included the length of the largest river in the region, the Penzhina River, from the peak of its summer flood to its boundary with the Shelikhov Gulf (the Sea of Okhotsk). This unique dynamic basin, with a length of about 800 km, was studied over 17 days. During this period, the entire water column of Penzhina Bay, down to a depth of about 60 m, and the surface water layer of the Shelikhov Gulf were undersaturated in terms of CO2, with low levels relative to those of the atmosphere. To explain this observation, the dissolved oxygen, nutrients in mineral and organic forms, humic substances, chlorophyll a, and photic zone thickness are presented for the entire basin under study, together with its hydrological data. The results of daily observations of the carbonate system at fixed anchorage stations characterize two contrasting regions of Penzhina Bay: one that was more exposed to continental runoff, which had salinity levels in the range of 8.0–21.3 psu during one tidal cycle; the second had smaller variations in salinity in the range of 31.6–32.9 psu during one tidal cycle. This study emphasizes the importance of biological processes and continental runoff on the variability of the carbonate system parameters and CO2 fluxes at a water/atmosphere boundary with extreme tidal conditions in this ecosystem that is barely affected by human activities.

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Technogenic Stabilization of Lagoon Straits and Weakening of Bio Sequestration of Carbon by Coastal Wetland Geosystems

Afanas’ev

Faustova

2023

Springer Geology

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The carbonate system of the amur estuary and the adjacent marine aquatic areas

Cited by 9 publications

References 5 publications

Production-destruction processes in estuaries of the rivers of Artemovka and Shkotovka (Usuri Bay) in summer

Production-destruction processes in estuaries of the rivers of Artemovka and Shkotovka (Usuri Bay) in summer

The Carbonate System of Penzhina Bay and the Shelikhov Gulf in the Sea of Okhotsk during Extreme Tides in Summer

Technogenic Stabilization of Lagoon Straits and Weakening of Bio Sequestration of Carbon by Coastal Wetland Geosystems

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