Spreading of the Amur River plume in the Amur Liman, Sakhalin Gulf, and the Strait of Tartary
Tóm tắt
This work focuses on a study of the Amur plume spreading during ice-free periods in the Amur Liman and adjacent areas of Sakhalin Gulf and the Strait of Tartary. It was found from MERIS/EnviSat satellite imagery, MERRA wind reanalysis, and Amur discharge data in 2002–2011 that regular transport of Amur plume waters from the Amur Liman to Sakhalin Gulf occurs in June–October. This process is caused by flood discharge of the Amur River in the absence of strong northern winds or when southern winds are strong during periods of moderate discharge. Estimates for the frequency and duration of this process have shown that it occurs on average during half of the days in June–October and can continue up to 2.5 months. Spreading of the Amur plume to the Strait of Tartary is a significantly rarer event. This process takes place only during the Amur’s freshet periods and for strong western wind forcing, which induces southward Ekman transport. The average duration of this process during the ice-free season is estimated as 15 days; however, in individual years, it can be as short as several days.
Tài liệu tham khảo
B. Kh. Glukhovskii, N. P. Goptarev, and F. S. Terziev, Hydrometeorology and Hydrochemistry of the Seas, Vol. 9: The Sea of Okhotsk, No. 1: Hydrometeorological Conditions (Gidrometeoizdat, St. Petersburg, 1998) [in Russian].
I. A. Zhabin, A. A. Abrosimova, V. A. Dubina, and D. A. Nekrasov, “Influence of the Amur River runoff on the hydrological conditions of the Amur leman and Sakhalin Bay (Sea of Okhotsk) during the spring-summer flood,” Russ. Meteorol. Hydrol. 35, 295–300 (2010).
I. A. Zhabin, L. N. Propp, T. I. Volkova, and P. Ya. Tishchenko, “Variability of hydrochemical and hydrological parameters near the Amur River estuary,” Oceanology (Engl. Transl.) 45, 664–670 (2005).
E. A. Karetnikova and L. A. Garetova, “Bacterioplankton and bacteriobenthos of the Amur estuary and the adjacent areas in the summer of 2006,” Oceanology (Engl. Transl.) 49, 377–384 (2009).
A. M. Koltunov, P. Y. Tishchenko, V. I. Zvalinskii, R. V. Chichkin, V. B. Lobanov, and D. A. Nekrasov, “The carbonate system of the Amur estuary and the adjacent marine aquatic areas,” Oceanology (Engl. Transl.) 49, 643–654 (2009).
A. A. Strobykina, I. A. Zhabin, V. I. Kim, et al., “Specific hydrological processes in the Amur leman,” Vodn. Resur. Razhim Vodn. Ob”ektov 43 (4), 347–358 (2016).
V. M. Shulkin, I. A. Zhabin, and A. A. Abrosimova, “The influence of the Amur river runoff on the biogeochemical cycle of iron in the Sea of Okhotsk,” Oceanology (Engl. Transl.) 54, 38–45 (2014).
A. Fujisaki, H. Mitsudera, J. Wang, and M. Wakatsuchi, “How does the Amur River discharge flow over the northwestern continental shelf in the Sea of Okhotsk?” Prog. Oceanogr. 126, 8–20 (2014).
R. W. Garvine, “A dynamical system of classifying buoyant coastal discharges,” Cont. Shelf Res. 15 (13), 1585–1596 (1995).
J. Nishioka, H. Mitsudera, I. Yasuda, et al., “Biogeochemical and physical processes in the Sea of Okhotsk and the linkage to the Pacific Ocean preface,” Prog. Oceanogr. 126, 1–7 (2014).
A. A. Osadchiev and P. O. Zavialov, “Lagrangian model of a surface-advected river plume,” Cont. Shelf Res. 58, 96–106 (2013).
S. D. Smith, “Wind stress and heat flux over the ocean in gale force winds,” J. Phys. Oceanogr. 10 (5), 709–726 (1980).
A. E. Yankovsky and D. C. Chapman, “A simple theory for the fate of buoyant coastal discharges,” J. Phys. Oceanogr. 27 (7), 1386–1401 (1997).