Spring freshet fluxes of terrigenous matter from Amur River to the estuary in surrounding Okhotsk and Japan Seas

Dudarev, O.V.; Charkin, A.N.; Chernykh, D.V.; Ruban, A.S.; Pipko, I.I.; Pugach, S.P.; Dubina, V.A.; Semiletov, Igor P.

doi:10.7868/S3034530825020051

PII

S30345308S0869769825020051-1

DOI

10.7868/S3034530825020051

Publication type

Article

Status

Published

Authors

O.V. Dudarev

Occupation: Doctor of Sciences in Geology and Mineralogy, Chief Researcher
Affiliation:
V.I. Il'ichev Pacific Oceanological Institute, FEB RAS
International Centre of the Far-Eastern and Arctic seas named by Admiral S.O. Makarov, Sakhalin State University-SakhalinTECH
Tomsk State University

A.N. Charkin

Occupation: Candidate of Sciences in Geology and Mineralogy, Head of Laboratory
Affiliation: V.I. Il'ichev Pacific Oceanological Institute, FEB RAS

D.V. Chernykh

Occupation: Candidate of Sciences in Technique, Senior Researcher
Affiliation:
V.I. Il'ichev Pacific Oceanological Institute, FEB RAS
International Centre of the Far-Eastern and Arctic seas named by Admiral S.O. Makarov, Sakhalin State University-SakhalinTECH
Tomsk State University

A.S. Ruban

Occupation: Candidate of Sciences in Geology and Mineralogy, Associate Professor
Affiliation: Tomsk Polytechnic University

I.I. Pipko

Occupation: Candidate of Sciences in Geography, Leading Researcher
Affiliation:
V.I. Il'ichev Pacific Oceanological Institute, FEB RAS
International Centre of the Far-Eastern and Arctic seas named by Admiral S.O. Makarov, Sakhalin State University-SakhalinTECH

S.P. Pugach

Occupation: Candidate of Sciences in Geography, Senior Researcher
Affiliation:
V.I. Il'ichev Pacific Oceanological Institute, FEB RAS
International Centre of the Far-Eastern and Arctic seas named by Admiral S.O. Makarov, Sakhalin State University-SakhalinTECH

V.A. Dubina

Occupation: Candidate of Sciences in Geography, Head of Laboratory
Affiliation: V.I. Il'ichev Pacific Oceanological Institute, FEB RAS

Igor P. Semiletov

Occupation: Corresponding Member of RAS, Doctor of Sciences in Geography, Head of Laboratory
Affiliation:
V.I. Il'ichev Pacific Oceanological Institute, FEB RAS
International Centre of the Far-Eastern and Arctic seas named by Admiral S.O. Makarov, Sakhalin State University-SakhalinTECH
Tomsk State University

Volume/ Edition

Volume / Issue number 2

Pages

57-75

Abstract

The objective of this work is to study the interannual variability of lithodynamic and biogeochemical characteristics of suspended matter (SPM) along the 884 km transect "lower reaches- estuary of the Amur River in the Sea of Okhotsk and the Sea of Japan". Observations were carried out in mid-June 2005 and 2006. The spring flood during the study periods differed dramatically in water content and conditions for mobilization of terrigenous material in the catchment area. Thus, the phases of the culmination of the highest flood level (2005) and the culmination of the lowest low-water level of the Amur were covered. The distribution of SPM, suspended organic carbon (POC), total nitrogen (TN), carbon isotopes (S13C) and nitrogen (815N) were studied. We did not find any sharp fluctuations in the SPM content in the lower reaches of the Amur in 2005 and 2006. However, they manifested themselves in the marine segments of the transect - in the Amur Estuary, in the Sea of Okhotsk and Sea of Japan segments of the estuary. The primary cause of the changes were the physicochemical transformations of SPM against the background of increasing salinity and wave remobilization of bottom sediments. The latter was most clearly manifested in 2006, when the water level in the river segment of the estuary and in the Amur Estuary was low.

Keywords

река Амур эстуарий взвешенный материал взвешенный органический углерод изотопы углерода и азота

Date of publication

01.04.2025

Year of publication

2025

Number of purchasers

Views

References

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GOST	Charkin A., Chernykh D., Dubina V., Dudarev O., Pipko I., Pugach S., Ruban A., Semiletov I. Spring freshet fluxes of terrigenous matter from Amur River to the estuary in surrounding Okhotsk and Japan Seas // Vestnik of the Far East Branch of the Russian Academy of Sciences. – 2025. – Issue number 2 C. 57-75 . URL: https://vestdvoras.ru/s30345308s0869769825020051-1/?version_id=116321. DOI: 10.7868/S3034530825020051
MLA	Charkin, A.N, Chernykh, D.V, Dubina, V.A, Dudarev, O.V, Pipko, I.I, Pugach, S.P, Ruban, A.S, Semiletov, Igor P "Spring freshet fluxes of terrigenous matter from Amur River to the estuary in surrounding Okhotsk and Japan Seas." Vestnik of the Far East Branch of the Russian Academy of Sciences. 2 (2025).:57-75. DOI: 10.7868/S3034530825020051
APA	Charkin A., Chernykh D., Dubina V., Dudarev O., Pipko I., Pugach S., Ruban A., Semiletov I. (2025). Spring freshet fluxes of terrigenous matter from Amur River to the estuary in surrounding Okhotsk and Japan Seas. Vestnik of the Far East Branch of the Russian Academy of Sciences. no. 2, pp.57-75 DOI: 10.7868/S3034530825020051

RAS PresidiumВестник Дальневосточного отделения Российской академии наук Vestnik of the Far East Branch of the Russian Academy of Sciences

Spring freshet fluxes of terrigenous matter from Amur River to the estuary in surrounding Okhotsk and Japan Seas

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Spring freshet fluxes of terrigenous matter from Amur River to the estuary in surrounding Okhotsk and Japan Seas

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