Articles | Volume 19, issue 6
https://doi.org/10.5194/os-19-1617-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-19-1617-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Relative dispersion and kinematic properties of the coastal submesoscale circulation in the southeastern Ligurian Sea
Pierre-Marie Poulain
CORRESPONDING AUTHOR
Centre for Maritime Research and Experimentation (CMRE), La Spezia, 19126, Italy
Luca Centurioni
Scripps Institution of Oceanography, La Jolla, 92093, California, USA
Carlo Brandini
Laboratorio di Monitoraggio e Modellistica Ambientale per lo sviluppo sostenibile (LAMMA), CNR, Sesto Fiorentino, 50019, Italy
Stefano Taddei
Laboratorio di Monitoraggio e Modellistica Ambientale per lo sviluppo sostenibile (LAMMA), CNR, Sesto Fiorentino, 50019, Italy
Maristella Berta
Istituto di Scienze Marine (ISMAR), CNR, La Spezia, 19032, Italy
Milena Menna
Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), Sgonico (Trieste), 34010, Italy
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Riccardo Martellucci, Francesco Tiralongo, Sofia F. Darmaraki, Michela D'Alessandro, Giorgio Mancinelli, Emanuele Mancini, Roberto Simonini, Milena Menna, Annunziata Pirro, Diego Borme, Rocco Auriemma, Marco Graziano, and Elena Mauri
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Over the past decade, understanding of the Indian Ocean has progressed through new observations and advances in theory and models of the oceanic and atmospheric circulation. This review brings together new understanding of the ocean–atmosphere system in the Indian Ocean, describing Indian Ocean circulation patterns, air–sea interactions, climate variability, and the critical role of the Indian Ocean as a clearing house for anthropogenic heat.
Miroslav Gačić, Laura Ursella, Vedrana Kovačević, Milena Menna, Vlado Malačič, Manuel Bensi, Maria-Eletta Negretti, Vanessa Cardin, Mirko Orlić, Joël Sommeria, Ricardo Viana Barreto, Samuel Viboud, Thomas Valran, Boris Petelin, Giuseppe Siena, and Angelo Rubino
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Experiments in rotating tanks can simulate the Earth system and help to represent the real ocean, where rotation plays an important role. We wanted to show the minor importance of the wind in driving the flow in the Ionian Sea. We did this by observing changes in the water current in a rotating tank affected only by the pumping of dense water into the system. The flow variations were similar to those in the real sea, confirming the scarce importance of the wind for the flow in the Ionian Sea.
Cited articles
André, X., Le Reste, S., and Rolin, J.-F.: Arvor-C: A coastal autonomous profiling float, Sea Technol., 51, 10–13, 2010.
Astraldi, M. and Gasparini, G. P.: The seasonal characteristics of the circulation in the North Mediterranean basin and their relationship with the atmospheric climatic conditions, J. Geophys. Res., 97, 9531–9540, 1992.
Astraldi, M., Gasparini, G. P., Manzella, G. M. R., and Hopkins, T. S.: Temporal variability of currents in the eastern Ligurian Sea, J. Geophys. Res., 95, 1515–1522, 1990.
Berta, M., Poulain, P.-M., Sciascia, R., Griffa, A., and Magaldi, M.: CARTHE drifters deployment within the DDR20 – “Drifter demonstration and Research 2020” experiment in the NW Mediterranean Sea, SEANOE [data set], https://doi.org/10.17882/85161, 2021.
Boffetta, G., Celani, A., Cencini, M., Lacorata, G., and Vulpiani, A.: Nonasymptotic properties of transport and mixing, Chaos, 10, 50–60, https://doi.org/10.1063/1.166475, 2000.
Bouzaiene, M., Menna, M., Poulain, P.-M., Bussani, A., and Elhmaidi, D.: Analysis of the surface dispersion in the Mediterranean sub-basins, Front. Mar. Sci., 7, 486, https://doi.org/10.3389/fmars.2020.00486, 2020.
Centurioni, L., Braasch, L., Di Lauro, E., Contestabile, P., De Leo, F., Casotti, R., Franco, L., and Vicinanza, D.: A new strategic wave measurement station off Naples port main breakwater, Coastal Engineering Proceedings, 1, 12 pp., 2017.
Ciuffardi, T., Napolitano, E., Iacono, R., Reseghetti, F., Raiteri, G., and Bordone, A.: Analysis of surface circulation structures along a frequently repeated XBT transect crossing the Ligurian and Tyrrhenian Seas, Ocean Dynam., 66, 767–83, 2016.
Cocker, E., Bert, J., Torres, F., Shreve, M., Kalb, J., Lee, J., Poimboeuf, M., Fautley, P., Adams, S., Lee, J., Lu, J., Chua, C., and Chang, N.: Low-cost, intelligent drifter fleet for large-scale, distributed ocean observation. OCEANS 2022, Hampton Roads, Hampton Roads, VA, USA, 1–8, https://doi.org/10.1109/OCEANS47191.2022.9977209, 2022.
Corrado, R., Lacorata, G., Palatella, L., Santoleri, R., and Zambianchi, E.: General characteristics of relative dispersion in the ocean, Sci. Rep., 7, 46291, https://doi.org/10.1038/srep46291, 2017.
D'Asaro, E. A., Shcherbina, A. J., Klymak, J. M., Molemaker, J., Novelli, G., Guigand, C. M., Haza, A. C., Haus, B. K., Ryan, E. H., Jacobs, G. A., Huntley, H. S., Laxague, N. J. M., Chen, S., Judt, F., McWilliams, J. C., Barkan, R., Kirwan Jr., A. D., Poje, A. C., and Ozgokmen, T.: Ocean convergence and the dispersion of flotsam, P. Natl. Acad. Sci. USA, 115, 1162–1167, https://doi.org/10.1073/pnas.1718453115, 2018.
Davis, R. E.: Drifter observation of coastal currents during CODE. The method and descriptive view, J. Geophys. Res., 90, 4741–4755, 1985.
D'Ovidio, F., Isern-Fontanet, J., Lopez, C., Hernandez-Garcia, E., and Garcia-Ladona, E.: Comparison between Eulerian diagnostics and finite-size Lyapunov exponents computed from altimetry in the Algerian basin, Deep-Sea Res., 56, 15–31, 2009.
Esposito, G., Berta, M., Centurioni, L., Johnston, T. M. S., Lodise, J., Özgökmen, T., Poulain, P.-M., and Griffa, A.: Submesoscale vorticity and divergence in the Alboran Sea: scale and depth dependence, Front. Mar. Sci., 8, 678304, https://doi.org/10.3389/fmars.2021.678304, 2021.
Haza, A. C., Ozgokmen, T. M., Griffa, A., Poje, A. C., and Lelong, M.-P.: How does drifter position uncertainty affect ocean dispersion estimates?, J. Atmos. Ocean. Tech., 31, 2809–2828, 2014.
Essink, S., Hormann, V., Centurioni, L. R., and Mahadevan, A.: Can we detect submesoscale motions in drifter pair dispersion?, J. Phys. Oceanogr., 49, 2237–2254, https://doi.org/10.1175/JPO-D-18-0181.1, 2019.
Flament, P., Armi, L., and Washburn, L.: The evolving structure of an upwelling filament, J. Geophys. Res., 90, 11765–11778, 1985.
Iacono, R. and Napolitano, E.: Aspects of the summer circulation in the eastern Ligurian Sea, Deep-Sea Res., 166, 103407, https://doi.org/10.1016/j.dsr.2020.103407, 2020.
Lacorata, G., Aurell, E., and Vulpiani, A.: Drifter dispersion in the Adriatic Sea: Lagrangian data and chaotic model, Ann. Geophys., 19, 121–129, 2001.
Lodise, J., Özgökmen, T., Gonçalves, R. C., Iskandarani, M., Lund, B., Horstmann, J., Poulain, P.-M., Klymak, J., Ryan, E. H., and Guigand, C.: Investigating the formation of submesoscale structures along mesoscale fronts and estimating kinematic quantities using lagrangian drifters, Fluids, 5, 159, https://doi.org/10.3390/fluids5030159, 2020.
Lorente, P., Lin-Ye, J., García-León, M., Reyes, E., Fernandes, M., Sotillo, M. G., Espino, M., Ruiz, M. I., Gracia, V., Perez, S., Aznar, R., Alonso-Martirena, A., and Álvarez-Fanjul, E.: On the performance of high frequency radar in the Western Mediterranean during the record-breaking storm Gloria, Front. Mar. Sci., 8, 645762, https://doi.org/10.3389/fmars.2021.645762, 2021.
Lumpkin, R. and Elipot, S.: Surface drifter pair spreading in the North Atlantic, J. Geophys. Res., 115, C12017, https://doi.org/10.1029/2010JC006338, 2010.
Mahadevan, A., Pascual, A., Rudnick, D. L., Ruiz, S., Tintoré, J., and D'Asaro, E.: Coherent pathways for vertical transport from the surface ocean to interior, B. Am. Meteorol. Soc., 101, E1996–E2004, https://doi.org/10.1175/BAMS-D-19-0305.1 , 2020.
Menna, M., Gerin, R., Bussani, A., and Poulain, P.-M.: The OGS Mediterranean drifter database: 1986–2016, OGS Tech. Rep., 2017/92 OCE 28 MAOS, Trieste, Italy, 34 pp., https://argo.ogs.it/pub/Menna%20et%20al%202017_Drifter_database.pdf (last access: 22 November 2023), 2017.
Molinari, R. and Kirwan, A. D.: Calculations of differential kinematic properties from Lagrangian observations in the Western Caribbean Sea, J. Phys. Oceanogr., 5, 483–491, https://doi.org/10.1175/1520-0485(1975)005<0483:CODKPF>2.0.CO;2, 1975.
Niiler, P. P.: The world ocean surface circulation. Ocean Circulation and Climate: Observing and Modelling the Global Ocean, in: International Geophysics Series, edited by: Siedler, G., Church, J., and Gould, J., Vol. 77, Academic Press, 193–204, 2001.15, https://doi.org/10.1016/S0074-6142(01)80119-4, 2001.
Novelli, G., Guigand, C., Cousin, C., Ryan, E. H., Laxague, N. J. M., Dai, H., Haus, B. K., and Özgökmen, T.: A biodegradable surface drifter for ocean sampling on a massive scale, J. Atmos. Ocean. Tech., 34, 2509–2532, https://doi.org/10.1175/JTECH-D-17-0055.1, 2017.
Okubo, A.: Horizontal dispersion of floatable particles in the vicinity of velocity singularities such as convergences, Deep-Sea Res. Pt. I, 17, 445–454, https://doi.org/10.1016/0011-7471(70)90059-8, 1970.
Okubo, A. and Ebbesmeyer, C. C.: Determination of vorticity, divergence, and deformation rates from analysis of drogue ob-servations, Deep-Sea Res. Pt. I, 23, 349–352, https://doi.org/10.1016/0011-7471(76)90875-5, 1976.
Poulain, P.-M.: Demonstration experiment and design of network for oceanographic and acoustic measurements, Memorandum report CMRE-MR-2020-17, NATO-STO CMRE, La Spezia, Italy, 43 pp., 2020.
Poulain, P.-M. and Gerin, R.: Assessment of the water-following capabilities of CODE drifters based on direct relative flow measurements, J. Atmos. Ocean Tech., 36, 621–633, https://doi.org/10.1175/JTECH-D-18-0097.1, 2019.
Poulain, P.-M., Mauri, E., and Ursella, L.: Unusual upwelling event and current reversal off the Italian Adriatic coast in summer 2003, Geophys. Res. Lett., 31, L05303, https://doi.org/10.1029/2003gl019121, 2004.
Poulain, P.-M., Gerin, R., Rixen, M., Zanasca, P., Teixeira, J., Griffa, A., Molcard, A., De Marte, M., and Pinardi, N.: Aspects of the surface circulation in the Liguro-Provençal basin and Gulf of Lion as observed by satellite-tracked drifters (2007–2009), Boll. Geofis. Teor. Appl., 53, 261–279, 2012.
Poulain, P.-M., Menna, M., and Gerin, R.: Mapping Mediterranean tidal currents with surface drifters, Deep-Sea Res. Pt. I, 138, 22–33, https://doi.org/10.1016/j.dsr.2018.07.011, 2018.
Poulain, P.-M., Mauri, E., Gerin, R., Chiggiato, J., Schroeder, K., Griffa, A., Borghini, M., Zambianchi, E., Falco, P., Testor, P., and Mortier, L.: On the dynamics in the southeastern Ligurian Sea in summer 2010, Cont. Shelf Res., 196, 104083, https://doi.org/10.1016/j.csr.2020.104083, 2020.
Poulain, P.-M., Centurioni, L., and Özgökmen, T.: Comparing the currents measured by CARTHE, CODE and SVP drifters as a function of wind and wave conditions in the Southwestern Mediterranean Sea, Sensors, 22, 353, https://doi.org/10.3390/s22010353, 2022.
Provenzale, A.: Transport by coherent barotropic vortices, Annu. Rev. Fluid Mech., 31, 55–93, 1999.
Rypina, I. I., Getscher, T. R., Pratt, L. J., and Mourre, B.: Observing and quantifying ocean flow properties using drifters with drogues at different depths, J. Phys. Oceanogr., 51, 2463–2482, https://doi.org/10.1175/JPO-D-20-0291.1, 2021.
Schaeffer, A., Gramoulle, A., Roughan, M., and Mantovanelli, A.: Characterizing frontal eddies along the East Australian Current from HF radar observations, J. Geophys. Res.-Oceans, 122, 3964–3980, https://doi.org/10.1002/2016JC012171, 2017.
Schroeder, K., Haza, A. C., Griffa, A., Özgökmen, T. M., Poulain, P.-M., Gerin, R., Peggion, G., and Rixen, M.: Relative dispersion in the Liguro-Provencal basin: From sub-mesoscale to mesoscale, Deep-Sea Res. I, 58, 2090228, https://doi.org/10.1016/j.dsr.2010.11.004, 2011.
Schroeder, K., Chiggiato, J., Haza, A. C., Griffa, A., Özgökmen, T. M., Zanasca, P., Molcard, A., Borghini, M., Poulain, P.-M., Gerin, R., Zambianchi, E., Falco, P., and Trees, C.: Targeted Lagrangian sampling of submesoscale dispersion at a coastal frontal zone, Geophys. Res. Lett., 39, L11608, https://doi.org/10.1029/2012GL051879, 2012.
Tarry, D., Essink, S., Pascual, A., Ruiz, S., Poulain, P.-M., Özgökmen, T., Centurioni, L. R., Farrar, J. T., Shcherbina, A., Mahadevan, A., and D'Asaro, E.: Frontal convergence and vertical velocity measured by drifters in the Alboran Sea, J. Geophys. Res., 126, e2020JC016614, https://doi.org/10.1029/2020JC016614, 2021.
Troupin, C., Barth, A., Sirjacobs, D., Ouberdous, M., Brankart, J.-M., Brasseur, P., Rixen, M., Alvera-Azcárate, A., Belounis, M., Capet, A., Lenartz, F., Toussaint, M.-E., and Beckers, J.-M.: Generation of analysis and consistent error fields using the Data Interpolating Variational Analysis (DIVA), Ocean Model., 52–53, 90–101, https://doi.org/10.1016/j.ocemod.2012.05.002, 2012.
Waterston, J., Rhea, J., Peterson, S., Bolick, L., Ayers, J., and Ellen, J.: Ocean of things: affordable Maritime sensors with scalable Analysis, OCEANS 2019, Marseille, Marseille, France, 1–6, https://doi.org/10.1109/OCEANSE.2019.8867398, 2019.
Wong, D.-P., Vieira, M. E. C., Slat, J., Tintore, J., and La Violette, P. E.: A shelf/slope frontal filament off the northeast Spanish coast, J. Mar. Res., 46, 321–332, 1988.
Zatsepin, A. G., Ginzburg, A. I., Kostianoy, A. G., Kremenetskiy, V. V., Krivosheya, V. G., Stanichny S. V., and Poulain, P.-M.: Observations of Black Sea mesoscale eddies and associated horizontal mixing, J. Geophys. Res., 108, 3246, https://doi.org/10.1029/2002JC001390, 2003.
Short summary
Drifters and a profiling float were deployed in the coastal waters of the southeastern Ligurian Sea to characterize the near-surface circulation at a scale of ~10 km. The drifters were trapped in an offshore-flowing filament and a cyclonic eddy that developed at the southwestern extremity of the filament. Drifter velocities are used to estimate differential kinematic properties and relative dispersion statistics of the surface currents.
Drifters and a profiling float were deployed in the coastal waters of the southeastern Ligurian...