Articles | Volume 17, issue 5
https://doi.org/10.5194/os-17-1231-2021
© Author(s) 2021. 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-17-1231-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Lagrangian eddy tracking reveals the Eratosthenes anticyclonic attractor in the eastern Levantine Basin
Alexandre Barboni
CORRESPONDING AUTHOR
Laboratoire de Météorologie Dynamique, Ecole Polytechnique, 91128 Palaiseau, France
Département de Géosciences, Ecole Normale Supérieure de Paris, 75005 Paris, France
Ayah Lazar
Israel Oceanographic and Limnological Research, 31080 Haifa, Israel
Alexandre Stegner
Laboratoire de Météorologie Dynamique, Ecole Polytechnique, 91128 Palaiseau, France
Evangelos Moschos
Laboratoire de Météorologie Dynamique, Ecole Polytechnique, 91128 Palaiseau, France
Related authors
Alexandre Barboni, Solange Coadou-Chaventon, Alexandre Stegner, Briac Le Vu, and Franck Dumas
Ocean Sci., 19, 229–250, https://doi.org/10.5194/os-19-229-2023, https://doi.org/10.5194/os-19-229-2023, 2023
Short summary
Short summary
Mesoscale eddies are ubiquitous turbulent structures in the ocean, influencing the upper mixed layer. The mixed layer is the ocean surface layer mixed through air–sea exchanges. Using Argo profiling floats inside large Mediterranean anticyclones, we investigate the induced winter mixed-layer depth anomalies. Mixed-layer depth was observed to be greatly influenced by the eddy preexisting subsurface structure to which it possibly connects and can also create double-core anticyclones.
Nir Haim, Vika Grigorieva, Rotem Soffer, Boaz Mayzel, Timor Katz, Ronen Alkalay, Eli Biton, Ayah Lazar, Hezi Gildor, Ilana Berman-Frank, Yishai Weinstein, Barak Herut, and Yaron Toledo
Earth Syst. Sci. Data, 16, 2659–2668, https://doi.org/10.5194/essd-16-2659-2024, https://doi.org/10.5194/essd-16-2659-2024, 2024
Short summary
Short summary
This paper outlines the process of creating an open-access surface wave dataset, drawing from deep-sea research station observations located 50 km off the coast of Israel. The discussion covers the wave monitoring procedure, from instrument configuration to wave field retrieval, and aspects of quality assurance. The dataset presented spans over 5 years, offering uncommon in situ wave measurements in the deep sea, and addresses the existing gap in wave information within the region.
Alexandre Barboni, Solange Coadou-Chaventon, Alexandre Stegner, Briac Le Vu, and Franck Dumas
Ocean Sci., 19, 229–250, https://doi.org/10.5194/os-19-229-2023, https://doi.org/10.5194/os-19-229-2023, 2023
Short summary
Short summary
Mesoscale eddies are ubiquitous turbulent structures in the ocean, influencing the upper mixed layer. The mixed layer is the ocean surface layer mixed through air–sea exchanges. Using Argo profiling floats inside large Mediterranean anticyclones, we investigate the induced winter mixed-layer depth anomalies. Mixed-layer depth was observed to be greatly influenced by the eddy preexisting subsurface structure to which it possibly connects and can also create double-core anticyclones.
Begoña Pérez Gómez, Ivica Vilibić, Jadranka Šepić, Iva Međugorac, Matjaž Ličer, Laurent Testut, Claire Fraboul, Marta Marcos, Hassen Abdellaoui, Enrique Álvarez Fanjul, Darko Barbalić, Benjamín Casas, Antonio Castaño-Tierno, Srđan Čupić, Aldo Drago, María Angeles Fraile, Daniele A. Galliano, Adam Gauci, Branislav Gloginja, Víctor Martín Guijarro, Maja Jeromel, Marcos Larrad Revuelto, Ayah Lazar, Ibrahim Haktan Keskin, Igor Medvedev, Abdelkader Menassri, Mohamed Aïssa Meslem, Hrvoje Mihanović, Sara Morucci, Dragos Niculescu, José Manuel Quijano de Benito, Josep Pascual, Atanas Palazov, Marco Picone, Fabio Raicich, Mohamed Said, Jordi Salat, Erdinc Sezen, Mehmet Simav, Georgios Sylaios, Elena Tel, Joaquín Tintoré, Klodian Zaimi, and George Zodiatis
Ocean Sci., 18, 997–1053, https://doi.org/10.5194/os-18-997-2022, https://doi.org/10.5194/os-18-997-2022, 2022
Short summary
Short summary
This description and mapping of coastal sea level monitoring networks in the Mediterranean and Black seas reveals the existence of 240 presently operational tide gauges. Information is provided about the type of sensor, time sampling, data availability, and ancillary measurements. An assessment of the fit-for-purpose status of the network is also included, along with recommendations to mitigate existing bottlenecks and improve the network, in a context of sea level rise and increasing extremes.
Natalia Belkin, Tamar Guy-Haim, Maxim Rubin-Blum, Ayah Lazar, Guy Sisma-Ventura, Rainer Kiko, Arseniy R. Morov, Tal Ozer, Isaac Gertman, Barak Herut, and Eyal Rahav
Ocean Sci., 18, 693–715, https://doi.org/10.5194/os-18-693-2022, https://doi.org/10.5194/os-18-693-2022, 2022
Short summary
Short summary
We studied how distinct water circulations that elevate (cyclone) or descend (anticyclone) water from the upper ocean affect the biomass, activity and diversity of planktonic microorganisms in the impoverished eastern Mediterranean. We show that cyclonic and anticyclonic eddies differ in their community composition and production. Moreover, the anticyclone may be a potential bio-invasion and dispersal vector, while the cyclone may serve as a thermal refugee for native species.
Cited articles
ARGO: Argo float data and metadata from Global Data Assembly Centre, Argo
GDAC, https://doi.org/10.17882/42182, 2020. a
Cabanes, C., Grouazel, A., von Schuckmann, K., Hamon, M., Turpin, V., Coatanoan, C., Paris, F., Guinehut, S., Boone, C., Ferry, N., de Boyer Montégut, C., Carval, T., Reverdin, G., Pouliquen, S., and Le Traon, P.-Y.: The CORA dataset: validation and diagnostics of in-situ ocean temperature and salinity measurements, Ocean Sci., 9, 1–18, https://doi.org/10.5194/os-9-1-2013, 2013 (data available at: https://resources.marine.copernicus.eu/?option=com_csw&view=details&product_id=INSITU_GLO_TS_REP_OBSERVATIONS_013_001_b, last access: 10 September 2021). a
Cui, W., Wang, W., Zhang, J., and Yang, J.: Multicore structures and the splitting and merging of eddies in global oceans from satellite altimeter data, Ocean Sci., 15, 413–430, https://doi.org/10.5194/os-15-413-2019, 2019. a
de Marez, C., L'Hégaret, P., Morvan, M., and Carton, X.: On the 3D
structure of eddies in the Arabian Sea, Deep-Sea Res. Pt. I, 150, 103057, https://doi.org/10.1016/j.dsr.2019.06.003, 2019. a
DYNED-Atlas-Med (Stegner, A., Le Vu, B., Pegliasco, C., and Faugere, Y.):
Dynamical Eddy Atlas of the Mediterranean-Sea 2000–2018, MISTRALS [data set], https://doi.org/10.14768/2019130201.2, 2019. a, b, c
Garreau, P., Dumas, F., Louazel, S., Stegner, A., and Le Vu, B.:
High-Resolution Observations and Tracking of a Dual-Core Anticyclonic Eddy in
the Algerian Basin, J. Geophys. Res.-Oceans, 123, 9320–9339,
2018. a
GEBCO: GEBCO Compilation Group, GEBCO 2020 Grid, https://doi.org/10.5285/a29c5465-b138-234d-e053-6c86abc040b9, 2020. a
Ioannou, A., Stegner, A., Tuel, A., Levu, B., Dumas, F., and Speich, S.:
Cyclostrophic corrections of AVISO/DUACS surface velocities and its
application to mesoscale eddies in the Mediterranean Sea, J.
Geophys. Res.-Oceans, 124, 8913–8932, https://doi.org/10.1029/2019JC015031, 2019. a
Laxenaire, R., Speich, S., and Stegner, A.: Evolution of the Thermohaline
Structure of One Agulhas Ring Reconstructed from Satellite Altimetry and Argo
Floats, J. Geophys. Res.-Oceans, 124, 8969–9003, https://doi.org/10.1029/2018JC014426, 2019. a
Mason, E., Pascual, A., and McWilliams, J. C.: A new sea surface height–based
code for oceanic mesoscale eddy tracking, J. Atmos. Ocean.
Tech., 31, 1181–1188, 2014. a
Mason, E., Ruiz, S., Bourdalle-Badie, R., Reffray, G., García-Sotillo, M., and Pascual, A.: New insight into 3-D mesoscale eddy properties from CMEMS operational models in the western Mediterranean, Ocean Sci., 15, 1111–1131, https://doi.org/10.5194/os-15-1111-2019, 2019. a
Matsuoka, D., Araki, F., Inoue, Y., and Sasaki, H.: A new approach to ocean
eddy detection, tracking, and event visualization–application to the
northwest pacific ocean, Procedia Comput. Sci., 80, 1601–1611, 2016. a
Menna, M., Poulain, P.-M., Zodiatis, G., and Gertman, I.: On the surface
circulation of the Levantine sub-basin derived from Lagrangian drifters and
satellite altimetry data, Deep-Sea Res. Pt. I, 65, 46–58, 2012. a
Millot, C. and Taupier-Letage, I.: Circulation in the Mediterranean sea, in:
The Mediterranean Sea, 29–66, Springer, Berlin, Heidelberg, 2005. a
Ozer, T., Gertman, I., Kress, N., Silverman, J., and Herut, B.: Interannual
thermohaline (1979–2014) and nutrient (2002–2014) dynamics in the Levantine
surface and intermediate water masses, SE Mediterranean Sea, Global
Planet. Change, 151, 60–67, 2017. a
Pessini, F., Olita, A., Cotroneo, Y., and Perilli, A.: Mesoscale eddies in the Algerian Basin: do they differ as a function of their formation site?, Ocean Sci., 14, 669–688, https://doi.org/10.5194/os-14-669-2018, 2018. a
Stegner, A. and Briac, L. V.: Atlas of 3D Eddies in the Mediterranean Sea from 2000 to 2017, ESPRI/IPSL [data set], https://doi.org/10.14768/2019130201.2, 2019. a
Taburet, G., Sanchez-Roman, A., Ballarotta, M., Pujol, M.-I., Legeais, J.-F., Fournier, F., Faugere, Y., and Dibarboure, G.: DUACS DT2018: 25 years of reprocessed sea level altimetry products, Ocean Sci., 15, 1207–1224, https://doi.org/10.5194/os-15-1207-2019, 2019. a
Yi, J., Du, Y., He, Z., and Zhou, C.: Enhancing the accuracy of automatic eddy detection and the capability of recognizing the multi-core structures from maps of sea level anomaly, Ocean Sci., 10, 39–48, https://doi.org/10.5194/os-10-39-2014, 2014. a, b
Short summary
Mesoscale eddies are an important part of the turbulent motion in the oceans, constituting coherent structures that can live for years and store physical property anomalies. Analysis of anticyclone (clockwise-rotating eddies) tracks in the eastern Levantine Basin revealed statistical patterns over 19 years of data, in particular the presence of an anticyclone attractor above the Eratosthenes Seamount, with a strong heat content signature.
Mesoscale eddies are an important part of the turbulent motion in the oceans, constituting...