Investigation of applicability of different approaches to calculation of geostrophic currents on the example of under-ice eddies forming ice rings on Lake Baikal
- Authors: Aslamov I.A.1, Zhdanov A.A.1, Granin N.G.1, Blinov V.V.1, Zyryanov D.V.2, Gnatovsky R.Y.1
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Affiliations:
- Limnological Institute Siberian Branch of the Russian Academy of Sciences
- Water Problems Institute, Russian Academy of Sciences
- Issue: No 6 (2024)
- Pages: 1546-1562
- Section: Articles
- URL: https://journals.rcsi.science/2658-3518/article/view/283142
- DOI: https://doi.org/10.31951/2658-3518-2024-A-6-1546
- ID: 283142
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Abstract
This study examines the spatial distribution of horizontal currents within under-ice anticyclonic eddies that lead to the formation of ring structures on the spring ice of Lake Baikal. Horizontal geostrophic current fields were calculated using the dynamic method, with a focus on comparing various approaches to determining water density, including a package specifically adapted for Baikal conditions, TEOS-10. Measured water temperature and conductivity data from the 2009 ring structure area served as the primary dataset, while reference data comprised velocity and direction profiles from a similar 2020 eddy, measured for the first time. Comparisons revealed that outdated methods, such as the Krotova method or the Chen-Millero equation, result in significant discrepancies from actual measurements, whereas the adapted TEOS-10 package shows the best agreement. Overall, the dynamic approach proved effective and can be successfully applied to study current fields in Lake Baikal. The research also identified and described several characteristic features of current structures within the examined under-ice circulations for the first time.
About the authors
I. A. Aslamov
Limnological Institute Siberian Branch of the Russian Academy of Sciences
Author for correspondence.
Email: ilya_aslamov@bk.ru
ORCID iD: 0000-0001-6678-5312
Russian Federation, Ulan-Batorskaya Str., 3, Irkutsk, 664033
A. A. Zhdanov
Limnological Institute Siberian Branch of the Russian Academy of Sciences
Email: ilya_aslamov@bk.ru
ORCID iD: 0000-0001-9718-5213
Russian Federation, Ulan-Batorskaya Str., 3, Irkutsk, 664033
N. G. Granin
Limnological Institute Siberian Branch of the Russian Academy of Sciences
Email: ilya_aslamov@bk.ru
ORCID iD: 0000-0002-7976-9060
Russian Federation, Ulan-Batorskaya Str., 3, Irkutsk, 664033
V. V. Blinov
Limnological Institute Siberian Branch of the Russian Academy of Sciences
Email: ilya_aslamov@bk.ru
ORCID iD: 0000-0001-9145-2843
Russian Federation, Ulan-Batorskaya Str., 3, Irkutsk, 664033
D. V. Zyryanov
Water Problems Institute, Russian Academy of Sciences
Email: ilya_aslamov@bk.ru
Russian Federation, Gubkina Str., 3, Moscow, 119333
R. Y. Gnatovsky
Limnological Institute Siberian Branch of the Russian Academy of Sciences
Email: ilya_aslamov@bk.ru
ORCID iD: 0000-0002-3484-8603
Russian Federation, Ulan-Batorskaya Str., 3, Irkutsk, 664033
References
- Ainbund M.M. 1973. Results of field studies of currents in Southern Baikal. Trudy. GGI [The works of GGI] 203: 49-70. (in Russian)
- Aslamov I.A., Kozlov V.V., Kirillin G.B. et al. 2017. A study of heat transport at the ice base and structure of the under-ice water layer in Southern Baikal. Water Resources 44(3): 428-441. doi: 10.1134/S0097807817030034
- Blinov V.V., Granin N.G., Gnatovskiy R.Yu. et al. 2006. Determining water masses in Lake Baikal by T,S-analysis. Geographiya i prirodnye resursy[Geography and Natural Resources] 2: 63-69. (in Russian)
- Chen C.T., Millero F.J. 1978. The equation of state of seawater determined from sound speeds. Journal of Marine Research 36: 657-691.
- Chen C.T., Millero F.J. 1986. Precise thermodynamic properties for natural waters covering only the limnological range. Limnology and Oceanography 31(3): 657-662.
- Currents in Baikal. 1977. In: Afanasiev A.N., Verbolov V.I. (Ed.). Novosibirsk: Nauka. (in Russian)
- Feistel R. 2003. A new extended Gibbs thermodynamic potential of seawater. Progress in Oceanography 58: 43-114.
- Feistel R. 2008. A Gibbs function for seawater thermodynamics for -6 to 80°C and salinity up to 120 g kg-1. Deep sea research 55: 1639-1671.
- Fofonoff N.P., Millard Jr R.C. 1983. Algorithms for the computation of fundamental properties of seawater. UNESCO Technical Papers in Marine Sciences 44. doi: 10.25607/OBP-1450
- Fomin L.M. 1964. The dynamic method in oceanography. Elsevier Oceanographiс Series 2.
- Gill A.E. 1982. Atmosphere-Ocean Dynamics. In: International Geophysics Series 30: San Diego, CA: Academic Press.
- Granin N.G., Dzhuson D., Zhdanov A.A. et al. 1999. Turbulent mixing of Lake Baikal water in the layer adjacent to ice and its role in the development of diatoms. Doklady Akademii Nauk [Reports of the Academy of Sciences] 366(6): 835-839. (in Russian)
- Granin N.G., Kozlov V.V., Tsvetova E.A. et al. 2015. Field studies and some results of numerical modeling of a ring structure on Baikal ice. Doklady Earth Science 461: 316-320. doi: 10.1134/S1028334X15030204
- Granin N.G., Mizandrontsev I.B., Kozlov V.V. et al. 2018. Natural ring structures on the Baikal ice cover: analysis of experimental data and mathematical modeling. Russian Geology and Geophysics 59(11): 1514-1525. doi: 10.1016/j.rgg.2018.10.011
- Granin N.G., Zhdanov A.A., Zavoruev V.V. et al. 1991. Features of the distribution of characteristics of the Baikal pelagic ecosystem during spring convection (based on research materials from 1990) Preprint of the USSR Academy of Sciences, Institute of Biophysics SB. Krasnoyarsk: IBF. (in Russian)
- Hohman R., Kipfer R., Peeters F. et al. 1997. Processes of deep-water renewal in Lake Baikal. Limnology and Oceanography 42(5): 841-855.
- IOC, SCOR and IAPSO. 2010. The international thermodynamic equation of seawater - 2010: Calculation and use of thermodynamic properties. Intergovernmental Oceanographic Commission. Manuals and Guides 56: UNESCO. URL: http://teos-10.org/pubs/TEOS-10/Manual.pdf
- Kirillin G., Aslamov I., Kozlov V. et al. 2020. Turbulence in the stratified boundary layer under ice: observations from Lake Baikal and a new similarity model. Hydrology and Earth System Sciences 24(4): 1691-1708. doi: 10.5194/hess-24-1691-2020
- Kouraev A.V., Zakharova E.A., Kostianoy A.G. et al. 2021. Giant ice rings in southern Baikal: multi-satellite data help to study ice cover dynamics and eddies under ice. The Cryosphere 15(9): 4501-4516. doi: 10.5194/tc-15-4501-2021
- Krotova V.A. 1970. Baikal water geostrophic circulation during period of summer thermal stratification. In: Galaziy G.I., Sokolnikov V.M. (Ed.) Trudy of LIN SB AS USSR 14(34) Leningrad: Nauka: 11-44. (in Russian)
- Palshin N.I., Zdorovenkova G.E., Bogdanov S.R. et al. 2017. Geostrophic currents in the small ice-covered lake. Uspekhi sovremennogo estestvoznaniya [The successes of modern natural science] 11: 89-94. (in Russian)
- Rizk W., Kirillin G., Leppаranta M. 2014. Basin-scale circulation and heat fluxes in ice-covered lakes. Limnology and Oceanography 59(2): 445-464. doi: 10.4319/lo.2014.59.02.0445
- Shimaraev M.N., Troitskaya E.S. 2005. Seasonal peculiarities of geostrophic currents in the southern Baikal. Geography and Natural Resources 1: 58-65.
- Sokolnikov V.M. 1960. On the currents and water temperature under ice cover in the Southern Baikal and near Angara source. Trudy LIN SO Akadademii Nauk SSSR [The works of LIN SB SAS] 18: 291-350. (in Russian)
- Wagner W., Prub A. 2002. The IAPWS formulation 1995 for the thermodynamic properties of ordinary water substance for general and scientific use. Journal of Physical and Chemical Reference Data 31(2): 387-535.
- Zhdanov A.A., Gnatovskii R.Yu., Granin N.G. et al. 2017. Variations of under-ice currents in Southern Baikal by data of 2012–2016. Water Resources 44(3): 442-452. doi: 10.1134/S0097807817030186
- Zhdanov A.A., Granin N.G., Shimaraev M.N. 2001. The generation mechanism of under-ice currents in Lake Baikal. Doklady Earth Science 377(3): 329-332.
- Zhdanov A.A., Makarov M.M., Kucher K.M. et al. 2014. Registration of currents using free-floating drifters. Geographiya i prirodnye resursy [Geography and Natural Resources] 1: 169-174. (in Russian)
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