hydrophysicsФундаментальная и прикладная гидрофизикаFundamental and Applied Hydrophysics2073-66732782-5221St. Petersburg Research Center of the Russian Academy of Sciences10.59887/2073-6673.2024.17(2)-8hydrophysics-1328Research ArticleГИДРОФИЗИЧЕСКИЕ И БИОГЕОХИМИЧЕСКИЕ ПОЛЯ И ПРОЦЕССЫHYDROPHYSICAL AND BIOGEOCHEMICAL FIELDS AND PROCESSESИзменчивость потока соленой воды в канале Хобург, Балтийское море: измерения и моделирование NEMOVariability of saltwater flow in the Hoburg Channel, Baltic Sea: in situ measurements vs NEMO modellinghttps://orcid.org/0000-0003-0316-1961ПакаВ. Т.PakaV. T.

117997, Москва, Нахимовский проспект, д. 36

Paka, Vadim T., Chief Researcher Scientist, Prof., Dr. Sci. (Phys.-Math.)

36 Nakhimovsky Prosp., Moscow 117997

WoS ResearcherID I‑6090-2016

Scopus Author ID7003547709

vpaka@mail.ruhttps://orcid.org/0000-0001-9013-3234ЖурбасВ. М.ZhurbasV. M.

117997, Москва, Нахимовский проспект, д. 36

Zhurbas, Victor M., Chief Researcher Scientist, Prof., Dr. Sci. (Phys.-Math.)

36 Nakhimovsky Prosp., Moscow 117997

WoS ResearcherID A‑7341-2009

Scopus Author ID6603968937

victor.zhurbas@mail.ruhttps://orcid.org/0000-0001-5979-1415ГоленкоМ. Н.GolenkoM. N.

117997, Москва, Нахимовский проспект, д. 36

GOLENKO, Mariya N., Senior Researcher Scientist, Cand.Sci. (Phys.-Math.)

36 Nakhimovsky Prosp., Moscow 117997

WoS ResearcherID K‑1544-2016

Scopus Author ID24080316600

m.golenko@yahoo.comhttps://orcid.org/0000-0001-6409-8228КоржА. О.KorzhA. O.

117997, Москва, Нахимовский проспект, д. 36

KORZH, Andrey O., Lead Engineer

36 Nakhimovsky Prosp., Moscow 117997

WoS ResearcherID L‑3192-2016

Scopus Author ID15080985900

ao.korzh@yandex.ruКондрашовА. А.KondrashovA. A.

117997, Москва, Нахимовский проспект, д. 36

Kondrashov, Aleksey A., Junior Researcher Scientist

36 Nakhimovsky Prosp., Moscow 117997

WoS ResearcherID S‑2848-2016

Scopus Author ID36657225800

kondrashoff1984@yandex.ruИнститут океанологии им. П.П. Ширшова РАНРоссияShirshov Institute of Oceanology, Russian Academy of SciencesRussian Federation20242107202417294102Copyright © Пака В.Т., Журбас В.М., Голенко М.Н., Корж А.О., Кондрашов А.А., 20242024Пака В.Т., Журбас В.М., Голенко М.Н., Корж А.О., Кондрашов А.А.Paka V.T., Zhurbas V.M., Golenko M.N., Korzh A.O., Kondrashov A.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://hydrophysics.spbrc.ru/jour/article/view/1328

Полугодовой временной ряд скорости течения в придонном слое, измеренный в проливе Хобург, показал семидневные колебания потока соленой воды. Течение характеризовалось сменой нагонов с увеличением скорости, направленной на север, примерно до 0,2–0,3 м/с и блокировок, когда скорость в северном направлении исчезала или принимала малые отрицательные значения. Измеренные временные ряды северной компоненты скорости на удивление хорошо коррелировали с модельной скоростью течения, полученной с помощью реанализа NEMO. Коэффициент корреляции составлял 0,82 при 95 % доверительном интервале [0,76, 0,86]. Семидневные колебания сопровождались практически синхронными колебаниями юго-восточной составляющей вектора ветра. Это можно считать убедительным доказательством того, что семидневные колебания потока соленой воды были вызваны ветровым воздействием.

A half-year long time series of the bottom layer velocity measured in situ in the Hoburg Channel displayed seven-day oscillations of the saltwater flow. The flow was characterized by alterations of surges with the increase of northward velocity to approximately 0.2–0.3 m/s and blockages when the northward velocity vanishes or becomes small negative. The measured time series of the northward velocity component was surprisingly highly correlated with the simulation by NEMO reanalysis at the correlation coefficient of 0.82 and the 95 % confidence limits of 0.76–0.86. The seven-day oscillations were accompanied by almost synchronous oscillations of the southeast component of the wind vector. It can be considered convincing evidence that the seven-day oscillations in the saltwater flow were caused by wind forcing.

Инклинометрический измеритель скорости теченияпридонный слойБалтийское морепоток соленой водымодель NEMOветровое воздействиепридонные течениякорреляцияTilt current meterbottom layerBaltic Seasaltwater flowNEMOwind forcingnear bottom currentscorrelationРабота подготовлена в рамках государственного задания Института океанологии им. П.П. Ширшова РАН: Журбас В.М. (постановка задачи исследования, теоретическое обоснование подхода исследования, написание текста статьи) — тема № FMWE‑2024-0015; Пака В.Т., Голенко М.Н., Корж А.О., Кондрашов А.А. (получение и обработка данных, интерпретация полученных результатов) — тема № FMWE‑2024-0025.The work was performed within the framework of the state assignment of the Shirshov Institute of Oceanology RAS: Zhurbas V.M. (problem setup, theoretical work, text writing) — the theme No. FMWE‑2024-0015; Paka V.T., Golenko M.N., Korzh A.O. and Kondrashov A.A. (data acquisition, data processing and interpretation of results) — the theme No. FMWE‑2024-0025.ReferencesMatthäus W., Frank H. Characteristics of major Baltic inflows — a statistical analysis. Continental Shelf Research. 1992, 12, 1375–1400. doi:10.1016/0278-4343(92)90060-WMatthäus W., Frank H. Characteristics of major Baltic inflows — a statistical analysis // Continental Shelf Research. 1992. Vol. 12. P. 1375–1400. doi:10.1016/0278-4343(92)90060-WLass H.U., Matthäus W. On temporal wind variations forcing salt water inflows into the Baltic Sea. Tellus. 1996, 48A, 663–671. doi:10.1034/j.1600-0870.1996.t01-4-00005.xLass H.U., Matthäus W. On temporal wind variations forcing salt water inflows into the Baltic Sea // Tellus. 1996. Vol. 48A. P. 663–671. doi:10.1034/j.1600-0870.1996.t01-4-00005.xKrauss W., Brügge B. Wind-produced water exchange between the deep basins of the Baltic Sea. Journal of Physical Oceanography. 1991, 21, 373–384. doi:10.1175/1520-0485(1991)021<0373: WPWEBT>2.0.CO;2Krauss W., Brügge B. Wind-produced water exchange between the deep basins of the Baltic Sea // Journal of Physical Oceanography. 1991. Vol. 21. P. 373–384. doi:10.1175/1520-0485(1991)021<0373: WPWEBT>2.0.CO;2Lehmann A., Lorenz P., Jacob D. Modelling the exceptional Baltic Sea inflow events in 2002–2003. Geophysical Research Letters. 2004, 31(21), L21308. doi:10.1029/2004GL020830Lehmann A., Lorenz P., Jacob D. Modelling the exceptional Baltic Sea inflow events in 2002–2003 // Geophysical Research Letters. 2004. Vol. 31. No. 21. Article N L21308. doi:10.1029/2004GL020830Lehmann A., Myrberg K., Post P. et al. Salinity dynamics of the Baltic Sea. Earth System Dynamics. 2022, 13, 373–392. doi:10.5194/esd‑13-373-2022Lehmann A., Myrberg K., Post P. et al. Salinity dynamics of the Baltic Sea // Earth System Dynamics. 2022. Vol. 13. P. 373–392. doi:10.5194/esd‑13-373-2022Meier M., Döscher R., Broman B., Piechura J. The major Baltic inflow in January 2003 and preconditioning by smaller inflows in summer/autumn 2002: A model study. Oceanologia. 2004, 46(4), 557–579.Meier M., Döscher R., Broman B., Piechura J. The major Baltic inflow in January 2003 and preconditioning by smaller inflows in summer/autumn 2002: A model study // Oceanologia. 2004. Vol. 46, N 4. P. 557–579.Meier M., Feistel R., Piechura J. et al. Baltic Sea deep water: A brief review of present knowledge from observations and models. Oceanologia. 2006, 48(S), 133–164.Meier M., Feistel R., Piechura J. et al. Baltic Sea deep water: A brief review of present knowledge from observations and models // Oceanologia. 2006. Vol. 48(S). P. 133–164.Burchard H., Janssen F., Bolding K., Umlauf L., Rennau H. Model simulations of dense bottom currents in the Western Baltic Sea. Continental Shelf Research. 2009, 29(1), 205–220. doi:10.1016/j.csr.2007.09.010Burchard H., Janssen F., Bolding K., Umlauf L., Rennau H. Model simulations of dense bottom currents in the Western Baltic Sea // Continental Shelf Research. 2009. Vol. 29, N 1. P. 205–220. doi:10.1016/j.csr.2007.09.010Rak D. The inflow in the Baltic Proper as recorded in January–February 2015. Oceanologia. 2016, 58(3), 241–247. doi:10.1016/j.oceano.2016.04.001Rak D. The inflow in the Baltic Proper as recorded in January–February 2015 // Oceanologia. 2016. Vol. 58, N 3. P. 241–247. doi:10.1016/j.oceano.2016.04.001Mohrholz V. Major Baltic inflow statistics — Revised. Frontiers in Marine Science. 2018, 5:384. doi:10.3389/fmars.2018.00384Mohrholz V. Major Baltic inflow statistics — Revised // Frontiers in Marine Science. 2018. Vol. 5. Article N 384. doi:10.3389/fmars.2018.00384Zhurbas V., Elken J., Paka V. et al. Structure of unsteady overflow in the Słupsk Furrow of the Baltic Sea. Journal of Geophysical Research: Oceans. 2012, 117, C04027. doi:10.1029/2011JC007284Zhurbas V., Elken J., Paka V. et al. Structure of unsteady overflow in the Słupsk Furrow of the Baltic Sea // Journal of Geophysical Research: Oceans. 2012. Vol. 117. C04027. doi:10.1029/2011JC007284Zhurbas V., Väli G., Golenko M., Paka V. Variability of bottom friction velocity along the inflow water pathway in the Baltic Sea. Journal of Marine Systems. 2018, 184, 50–58. doi:10.1016/j.jmarsys.2018.04.008Zhurbas V., Väli G., Golenko M., Paka V. Variability of bottom friction velocity along the inflow water pathway in the Baltic Sea // Journal of Marine Systems. 2018. Vol. 184. P. 50–58. doi:10.1016/j.jmarsys.2018.04.008Zhurbas V., Golenko M., Paka V., Korzh A. Wind-driven salinity tongue migration in the Gulf of Finland according to NEMO and ERA5 reanalyses. Journal of Marine Systems. 2024, 242, 103932. doi:10.1016/j.jmarsys.2023.103932Zhurbas V., Golenko M., Paka V., Korzh A. Wind-driven salinity tongue migration in the Gulf of Finland according to NEMO and ERA5 reanalyses // Journal of Marine Systems. 2024. Vol. 242. Article N 103932. doi:10.1016/j.jmarsys.2023.103932Paka V.T., Zhurbas V.M., Golenko M.N. et al. Innovative Closely Spaced Profiling and Current Velocity Measurements in the Southern Baltic Sea in 2016–2018 With Special Reference to the Bottom Layer. Frontiers in Earth Science. 2019, 7:111. doi:10.3389/feart.2019.00111Paka V.T., Zhurbas V.M., Golenko M.N. et al. Innovative Closely Spaced Profiling and Current Velocity Measurements in the Southern Baltic Sea in 2016–2018 With Special Reference to the Bottom Layer // Frontiers in Earth Science. 2019. Vol. 7. Article N 111. doi:10.3389/feart.2019.00111Zhurbas V., Väli G. Wind-controlled transport of saltwater in the southeastern Baltic Sea: A model study. Frontiers in Marine Science. 2022, 9:835656. doi:10.3389/fmars.2022.835656Zhurbas V., Väli G. Wind-controlled transport of saltwater in the southeastern Baltic Sea: A model study // Frontiers in Marine Science. 2022. Vol. 9. Article N835656. doi:10.3389/fmars.2022.835656Golenko M., Paka V., Zhurbas V., Korzh A., Kondrashov A. Intermediate plumes of low oxygen in the southeastern Baltic Sea. Oceanologia. 2023, 65(1), 100–116. doi:10.1016/j.oceano.2021.12.003Golenko M., Paka V., Zhurbas V., Korzh A., Kondrashov A. Intermediate plumes of low oxygen in the southeastern Baltic Sea // Oceanologia. 2023. Vol. 65, N 1. P. 100–116. doi:10.1016/j.oceano.2021.12.003Bulczak A., Rak D., Schmidt B., Beldowski J. Observations of near-bottom currents in Bornholm Basin, Słupsk Furrow and Gdansk Deep. Deep-Sea Research II. 2015, 128, 96–113. doi:10.1016/j.dsr2.2015.02.021Bulczak A., Rak D., Schmidt B., Beldowski J. Observations of near-bottom currents in Bornholm Basin, Słupsk Furrow and Gdansk Deep // Deep-Sea Research II. 2015. Vol. 128. P. 96–113. doi:10.1016/j.dsr2.2015.02.021Hagen E., Plüschke G. Daily current series in the Deep Eastern Gotland Basin (1993–2008). Meereswiss. Ber., Warnemünde, 75 (2009) — Marine Science Reports, No. 75. 2009. doi:10.12754/msr‑2009-0075Hagen E., Plüschke G. Daily current series in the Deep Eastern Gotland Basin (1993–2008) / In: Meereswiss. Ber., Warnemünde, 75 (2009) — Marine Science Reports, N 75. 2009. doi:10.12754/msr‑2009-0075Kärnä T. Ljungemyr P., Falahat S. et al. Nemo-Nordic 2.0: operational marine forecast model for the Baltic Sea. Geoscience Model Development. 2021, 14, 5731–5749. doi:10.5194/gmd‑14-5731-2021Kärnä T. Ljungemyr P., Falahat S. et al. Nemo-Nordic 2.0: operational marine forecast model for the Baltic Sea // Geoscience Model Development. 2021. Vol. 14. P. 5731–5749. doi:10.5194/gmd‑14-5731-2021Large W.G., Pond S. Open ocean momentum flux measurements in moderate to strong winds. Journal of Physical Oceanography. 1981, 11(3), 324–336. doi:10.1175/1520-0485(1981)011<0324: OOMFMI>2.0.CO;2Large W.G., Pond S. Open ocean momentum flux measurements in moderate to strong winds // Journal of Physical Oceanography. 1981. Vol. 11. N 3. P. 324–336. doi:10.1175/1520-0485(1981)011<0324: OOMFMI>2.0.CO;2

The authors declare that there are no conflicts of interest present.