Mesoscale eddies and related processes in the northeastern Black Sea
Ginzburg, A.I.; Kostianoy, A.G.; Krivosheya, V.G.; Nezlin, N.P.; Soloviev, D.M.; Stanichny, S.V.; Yakubenko, V.G. (2002). Mesoscale eddies and related processes in the northeastern Black Sea. J. Mar. Syst. 32(1-3): 71-90. https://dx.doi.org/10.1016/S0924-7963(02)00030-1 In: Journal of Marine Systems. Elsevier: Tokyo; Oxford; New York; Amsterdam. ISSN 0924-7963; e-ISSN 1879-1573, more Also appears in:Frankignoulle, M. (Ed.) (2002). Exchange Processes at the Ocean Margins. Selected papers from the 32nd International Liège Colloquium on Ocean Hydrodynamics, held in Liège, Belgium on May 8-12, 2000. Journal of Marine Systems, 32(1-3). Elsevier: Amsterdam. ex1-ex2, 252 pp., more |  |
| Keywords | Eddies
Eddies
Motion > Water motion > Circulation > Water circulation > Ocean circulation > Oceanic eddies > Mesoscale eddies
Organic compounds > Carbohydrates > Glycosides > Pigments > Photosynthetic pigments > Chlorophylls
Properties > Water properties > Temperature > Water temperature > Surface temperature
Remote sensing
Surfaces > Sea surface
Water exchange
MED, Black Sea [Marine Regions]
Marine/Coastal |
| Authors | | Top | - Ginzburg, A.I., correspondent
- Kostianoy, A.G., correspondent, more
- Krivosheya, V.G.
- Nezlin, N.P.
| - Soloviev, D.M.
- Stanichny, S.V.
- Yakubenko, V.G.
| |
| Abstract | Mesoscale dynamics in the northeastern Black Sea in Autumn 1993 and 1997 is considered on the basis of analysis of the NOAA AVHRR imagery together with relevant hydrographic measurements and meteorological information. Over the course from 6 September to 8 October 1997, five near-shore anticyclonic eddies (NAEs) about 40 km in diameter were observed within the region between Tuapse and the Kerch Strait, their movement speed reaching about 15 cm/s at separate parts of their trajectories. Separation of an NAE (NAE-1) from the coast in the region of a widening shelf/slope west of Novorossiysk and its transformation into deep-sea eddy was traced. Lifetime of the anticyclone was no less than 1 month, its mean offshore speed was about 4.3 cm/s. According to the SeaWiFS data, the increased chlorophyll alpha concentration (compared with the mean concentration at the center of the eastern part of the sea) was observed on 8 October 1997 in four "young" NAEs after an intense precipitation, the decreased one at the same time occurred in NAE-1, which was depleted of supply by shelf waters. In Summer 1993, a large NAE (about 95 km in diameter) was observed in the region between Tuapse and Gelendzhik. Evolution of the eddy from 3 June to 8 November 1993 was traced. Lifetime of the eddy exceeded 5 months. Its mean offshore speed to the southwest since its separation from the coast (around 17 August) in the Novorossiysk region was about 1.2 cm/s. The difference between dynamic situations in the same season (autumn) of 2 years, 1997 and 1993, was likely associated with peculiarities of atmospheric circulation and related intensity of cyclonic circulation in the Black Sea. |
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