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Interannual Correlations Between Sea Surface Temperature and Conce...

By: D. B. Lluch-cota; S. E. Lluch-cota; G. Gutiérrez-de-velasco; H. Herrera-cervantes

Description: Unidad La Paz, Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), La Paz, Baja California Sur 23050, México. Interannual correlation between satellite-derived sea surface temperature (SST) and surface chlorophyll a (Chl a) are examined in the coastal upwelling zone off Punta Eugenia on the west coast of the Baja California Peninsula, an area than has been identified as having intense biological productivity and...

Almazán-Becerril, A., Rivas, D., and García-Mendoza, E.: The influence of mesoscale physical structures in the phytoplankton taxonomic composition of the subsurface chlorophyll maximum off Baja California, Deep-Sea Res.-Pt. I, 70, 91–102, 2012.; Behrenfeld, M. J., O'Malley, R. T., Siegel, D. A., McClain, C. R., Sarmiento, J. L., Feldman, G. C., Milligan, A. J., Falkowski, P. G., Letelier, R. M., and Boss, E. S.: Climatic-driven trends in contemporary ocean productivity, ...

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Interannual Variability and Future Projection of Summertime Ocean ...

By: T. Hibiya; W. Sasaki; T. Kayahara

Description: Storm, Flood and Landslide Research Department, National Research Institute for Earth Science and Disaster Prevention, Tsukuba, Japan. A 70-yr (from 1985–1995 to 2055–2065) change of decadal mean summertime extreme significant wave heights (SWH) in the western North Pacific under CO2-induced global warming condition is projected. For this purpose, possible atmospheric fields under future global warming are derived from 10-yr time-slice exp...

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Technical Note: Watershed Strategy for Oceanic Mesoscale Eddy Spli...

By: L. Sun; Q. Y. Li

Description: Key Laboratory of Atmospheric Composition and Optical Radiation, CAS, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China. To identify oceanic mononuclear mesoscale eddies, a threshold-free splitting method was developed based on the watershed. Because oceanic eddies are similar to plateaus and basins in the map of the sea level anomaly (SLA) data, the natural divisions of the basins are the watersh...

Chaigneau, A., Gizolme, A., and Grados, C.: Mesoscale eddies off Peru in altimeter records: identification algorithms and eddy spatio-temporal patterns, Progr. Oceanogr., 79, 106–119, 2008.; Chaigneau, A., Le Texier, M., Eldin, G., Grados, C., and Pizarro, O.: Vertical structure of mesoscale eddies in the eastern South Pacific Ocean: a composite analysis from altimetry and Argo profiling floats, J. Geophys. Res.-Oceans, 116, C11025,

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A New Parameterisation of Salinity Advection to Prevent Stratifica...

By: E. Deleersnijder; S. Blaise

Description: Université catholique de Louvain, Unité de Génie Civil et Environnemental, Louvain-la-Neuve, Belgium. A new parameterisation of horizontal salinity advection for a one-dimensional water-column estuarine model, inspired by the first-order finite-difference upwind scheme, is presented. This parameterisation prevents stratification from growing indefinitely, a numerical artefact usually referred to as runaway stratification. It is seen that, using this upwi...

Blaise, S., Deleersnijder, E., White, L., and Remacle, J.-F.: Influence of the turbulence closure scheme on the finite-element simulation of the upwelling in the wake of a shallow-water island, Cont. Shelf Res., 27, 2329–2345, 2007.; Galperin, B., Kantha, L., Hassid, S., and Rosati, A.: A quasi-equilibrium turbulent energy model for geophysical flows, J. Atmos. Sci., 45, 55–62, 1988.; Blumberg, A F. and Mellor, G L.: A description of three-dimensional coastal ocean circu...

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A New 3-d Modelling Method to Extract Subtransect Dimensions from ...

By: L. Fillinger; T. Funke

Description: Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Am Alten Hafen 26, 27568 Bremerhaven, Germany. Underwater video transects have become a common tool for quantitative analysis of the seafloor. However a major difficulty remains in the accurate determination of the area surveyed as underwater navigation can be unreliable and image scaling does not always compensate for distortions due to perspective and topography. Depending on the...

Althaus, F., Williams, A., Schlacher, T. A., Kloser, R. J., Green, M. A., Barker, B. A., Bax, N. J., Brodie, P., and Schlacher-Hoenlinger, M. A.: Impacts of bottom trawling on deep-coral ecosystems of seamounts are long-lasting, Mar. Ecol.-Prog. Ser., 397, 279–294, doi:10.3354/meps08248, 2009.; Amado-Filho, G. M., Pereira-Filho, G. H., Bahia, R. G., Abrantes, D. P., Veras, P. C., and Matheus, Z.: Occurrence and distribution...

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Operational Evaluation of the Mediterranean Monitoring and Forecas...

By: A. Grandi; D. Hayes; V. Lyubartsev; J. A. U. Nilsson; I. Gertman; P. Lorente; J. Gatti; L. Renault; J. Azzopardi; G. Korres; L. Perivoliotis; A. Teruzzi; A. Aydogdu; G. Bolzon; V. Malacic; G. Nardone; M. Tonani; A. Bruschi; S. Pensieri; A. Olita; M. Ravaioli; M. G. Sotillo; R. Goldman; T. Garau; I. Pairaud; A. Drago; G. Zodiatis; S. Sofianos; E. Ozsoy; B. Petelin; A. Mantziafou

Description: Istituto Nazionale di Geofisica e Vulcanologia, Bologna, Italy. A web-based validation platform has been developed at the Istituto Nazionale di Geofisica e Vulcanologia (INGV) for the Near Real Time validation of the MyOcean-Mediterranean Monitoring and Forecasting Centre products (Med-MFC).

A network for the collection of the in-situ observations, the nested sub-basin forecasting systems model data (provided by the partners of the Mediterrane...

Dobricic. S. and Pinardi, N.: An oceanographic three-dimensional variational data assimilation scheme, Ocean Modell., 22, 89–105, 2008.; Desaubies, Y.: Mersea, Development of a European Ocean Monitoring and Forecasting System – Ocean and Marine applications for Gmes, Ocean Weather Forecasting: An Integrated View of Oceanography, Chapter 19, 449-453, Springer, 2006.; Drevillon, M., Bourdalle-Badie, R., Derval, C., Drillet, Y., Lellouche, J. M., Remy, E., Tranchant, B., Be...

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Structure of Phytoplankton (Continuous Plankton Recorder and Seawi...

By: R. D. Pingree; S. C. Leterme

Description: Sir Alister Hardy Foundation for Ocean Science, The Laboratory, Citadel Hill, Plymouth, UK. All marine organisms are affected to some extent by the movement and thermal properties of oceanic currents. However phytoplankton, because of its small size is most directly coupled to the physical environment. The intense hydrodynamic activity observed in the Northwest Atlantic Shelves Province makes this region especially intriguing from the point of view of p...

Arístegui, J., Tett, P., Hernández-Guerra, A., Basterretxea, G., Montero, M. F., Wild, K., Sangra, P., Hernandez-Leon, S., Canton, M., Garcia-Braun, J. A., Pacheco, M., and Barton, E. D.: The influence of island-generated eddies on chlorophyll distribution: a study of mesoscale variation around Gran Canaria, Deep-Sea Res., 44, 71–96, 1997.; Backus, R. H.: Georges Bank, MIT Press, Cambridge, Massachusetts, 1987.; Bisagni, J. J.: Estimates of vertical heat flux and stratif...

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A Fishery Observing System for the Collection of Fishery and Ocean...

By: N. Cingolani; E. Arneri; A. Belardinelli; A. Santojanni; P. Falco; A. Russo

Description: Istituto di Scienze Marine – Consiglio Nazionale delle Ricerche, Sezione di Ancona, Largo Fiera della Pesca 60125, Ancona, Italy. Fishery Observing System (FOS) was developed as a first and basic step towards fish stock abundance nowcasting/forecasting within the framework of the EU research program Mediterranean Forecasting System: Toward an Environmental Prediction (MFSTEP). The study of the relationship between abundance and environmental parameters a...

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Variability of Antarctic Intermediate Water Properties in the Sout...

By: M. Tomczak

Description: School of Chemistry, Physics and Earth Sciences, Flinders University, GPO Box 2100, Adelaide SA 5001, Australia. Argo float time series data are used to study the salinity field at the depth of the salinity minimum produced by Antarctic Intermediate Water (AAIW). It is found that far from showing the smooth erosion of the minimum that would result from diffusive flow, the salinity field is characterized by features of geostrophic turbulence such as front...

Armi, L. and W. Zenk: Large lenses of highly saline Mediterranean water, J. Phys. Oceanogr., 14, 1560–1576, 19984.; Elliott, B. A. and T. B. Sanford: The subthermocline lens D1. Part I: Description of water properties and velocity profiles, J. Phys. Oceanogr$., 16$, 532–548, 1986a.; McWilliams, J. C.: Submesoscale, coherent vortices in the ocean, Rev. Geophys., $23$, 165–182, 1985.; Ichikawa, Y., Takatsuki, Y., Mizuno, K., Shikama, N., and Takeuchi, K.: Estimation of dri...

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Eddy Characteristics in the South Indian Ocean as Inferred from Su...

By: Xuhua Cheng; Yan Du; Jiaxun Li; Shaojun Zheng

Description: State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China. Using a geometric eddy identification method, cyclonic and anticyclonic eddies from submesoscale to mesoscale in the South Indian Ocean (SIO) have been statistically investigated based on 2082 surface drifters from 1979 to 2013. 19252 eddies are identified with 60% anticyclonic eddies. For the submesoscale eddi...

Abraham, E. R.: The generation of plankton patchiness by turbulent stirring, Nature, 391, 577–580, doi:10.1038/35361, 1998.; Abraham, E. R., Law, C. S., Boyd, P. W., Lavender, S. J., Maldonado, M. T., and Bowie, A. R.: Importance of stirring in the development of an iron-fertilized phytoplankton bloom, Nature, 407, 727–730, doi:10.1038/35037555, 2000.; Aristegui, J., Tett, P., Hern...

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The Role of Subpolar Deep Water Formation and Nordic Seas Overflow...

By: H. R. Langehaug; D. Matei; J. Mignot; W. Park; O. H. Otterå; S. Lorenz; M. Menary; K. Lohmann; J. Ba; J. H. Jungclaus; Y. Gao

Description: Max Planck Institute for Meteorology, Hamburg, Germany. We investigate the respective role of variations in subpolar deep water formation and Nordic Seas overflows for the decadal to multidecadal variability of the Atlantic meridional overturning circulation (AMOC). This is partly done by analysing long (order of 1000 years) control simulations with five coupled climate models. For all models, the maximum influence of variations in subpolar deep water f...

Ba, J., Keenlyside, N., Park, W., Latif, M., Hawkins, E., and Ding, H.: A mechanism for Atlantic multidecadal variability in the Kiel Climate Model, Clim. Dynam., 41, 2133–2144, doi:10.1007/s00382-012-1633-4, 2013.; Ba, J., Keenlyside, N., Latif, M., Park, W., Ding, H., Lohmann, K., Mignot, J., Menary, M., Otterå, O. H., Wouters, B., Salas, D., Oka, A., Belluci A., and Volodin, E.: A multi-model comparison for Atlan...

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First Images and Orientation of Fine Structure from a 3-d Seismic ...

By: W. S. Holbrook; T. M. Blacic

Description: University of Wyoming, Geology and Geophysics Department, 1000 E. University Ave., Laramie, WY 82071, USA. We present 3-D images of ocean fine structure from a unique industry-collected 3-D multichannel seismic dataset from the Gulf of Mexico that includes expendable bathythermograph casts for both swaths. 2-D processing reveals strong laterally continuous reflections throughout the upper ~800 m as well as a few weaker but still distinct reflections as ...

Biescas, B., Sallarès, V., Pelegrí, J. L., Machín, F., Carbonell, R., Buffett, G., Dañobeitia, J. J., and Calahorrano, A.: Imaging meddy finestructure using multichannel seismic reflection data, Geophys. Res. Lett., 35, L11609, doi:10.1029/2008GL033971, 2008.; Cooper, C., Forristall, G. Z., and Joyce, T. M.: Velocity and hydrographic structure of two Gulf of Mexico warm-core rings, J. Geophys. Res., 95(C2), 1663–1679, 1990.; Egbert, G. D., Bennett, A. F., and Foreman, M....

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Towards an Integrated Forecasting System for Pelagic Fisheries : V...

By: Z. Gürkan; I. J. Allen; A. Christensen; M. Butenschön

Description: DTU Aqua, Technical University of Denmark, 2920 Charlottenlund, Denmark. First results of a coupled modeling and forecasting system for the pelagic fisheries are being presented. The system consists currently of three mathematically fundamentally different model subsystems: POLCOMS-ERSEM providing the physical-biogeochemical environment implemented in the domain of the North-West European shelf and the SPAM model which describes sandeel stocks in the Nort...

Alheit, J.: Consequences of regime shifts for marine food webs, Int. J. Earth. Sci., 98, 261–268, doi:10.1007/s00531-007-0232-9, 2009.; Allen, J. I., Blackford, J. C., Holt, J., Proctor, R., Ashworth, M., and Siddorn, J.: A highly spatially resolved ecosystem model for the North West European Continental Shelf, Sarsia, 86, 423–440, 2001.; Allen, J. I., Holt, J. T., Blackford, J., and Proctor, R.: Error quantificatio...

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The Role of Vertical Shear on the Horizontal Oceanic Dispersion : ...

By: R. Corrado; L. Palatella; G. Lacorata; I. Schipa; R. Santoleri; A. S. Lanotte; C. Pizzigalli

Description: CNR ISAC, GOS Team, Str. Prov. Lecce Monteroni, 73100 Lecce, Italy. The effect of vertical shear on the horizontal dispersion properties of passive tracer particles on the continental shelf of South Mediterranean is investigated by means of observative and model data. In-situ current measurements reveal that vertical velocity gradients in the upper mixed layer decorrelate quite fast (∼ 1 day), whereas basin-scale ocean circulation models tend to overest...

Bennett, A. F.: A Lagrangian analysis of turbulent diffusion, Rev. Geophys., 25, 799–822, 1987.; Bennett, A. F.: Lagrangian Fluid Dynamics, Cambridge University Press, Cambridge, UK, 2005.; Berloff, P. and McWilliams, J.: Material transport in Oceanic gyres – Part 2: Hierarchy of stochastic models, J. Phys. Ocean., 32, 797–830, 2002.; Boffetta, G., Celani, A., Cencini, M., Lacorata, G., and Vulpiani, A.: Non-asymptotic properties of transport and mixing, Chaos, 10, 50–60...

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A Study of the Hydrographic Conditions in the Adriatic Sea from Nu...

By: A. Guarnieri; P. Oddo

Description: Istituto Nazionale di Geofisica e Vulcanologia, Viale Aldo Moro 44, Bologna, Italy. The inter-annual variability of Adriatic Sea hydrographic characteristics is investigated by means of numerical simulation and direct observation. The period under investigation runs from the beginning of 2000 to the end of 2008. The model used to carry out the simulation is derived from the primitive equation component of the Adriatic Forecasting System (AFS). The model...

Artegiani, A. and Salusti, E.: Field observation of the flow of dense water on the bottom of the Adriatic Sea during the winter of 1981, Oceanol. Acta, 10, 387–391, 1987.; Artegiani, A., Azzolini, R., and Salusti, E.: On the dense water in the Adriatic Sea, Oceanol. Acta, 12, 151–160, 1989.; Artegiani, A., Bregant, D., Paschini, E., Pinardi, N., Raicich, F., and Russo, A.: The Adriatic Sea general circulation. part I: Air-sea interactions and water mass structure, J. Phy...

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Assessment of the Impact of Ts Assimilation from Argo Floats in th...

By: A. Molcard; V. Rupolo; F. Raicich; A. Griffa

Description: CNR, ISMAR/La Spezia, Italy. In this paper, the impact of assimilating Temperature (T) and Salinity (S) profiles from Argo floats in the Mediterranean Sea is quantitatively investigated using the Observing System Simulation Experiments (OSSE) approach. The impact of varying the number of floats and their launch positions is considered, using numerical simulations with a MOM model and a reduced-order multivariate Optimal Interpolation scheme (SOFA) for ...

Arnold Jr., C. P. and Dey, C. H.: Observing-system simulation experiments: Past, present and future, Bull. Am. Meteorol. Soc., 67, 687–695, 1986.; Barth, N. and Wunsch, C.: Oceanographic experiment design by simulated annealing, J. Phys. Oceanogr., 20, 1249–1263, 1990.; Bennett, A.F.: Inverse methods for assessing ship-of-opportunity networks and estimating circulation and winds from tropical expendable bathythermograph data, J. Geophys. Res., 95, 16 111–16 148, 1990.; B...

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A New Assessment of Global Mean Sea Level from Altimeters Highligh...

By: G. Valladeau; A. Cazenave; S. Guinehut; M. Ablain

Description: CLS, Ramonville Saint-Agne, France. A new error budget assessment of the global Mean Sea Level (MSL) determined by TOPEX/Poseidon and Jason-1 altimeter satellites between January 1993 and June 2008 is presented. We discuss all potential errors affecting the calculation of the global MSL rate. We also compare altimetry-based sea level with tide gauge measurements over the altimetric period. This allows us to provide a realistic error budget of the MSL ri...

Ablain, M., Philipps, S., Faugere, Y., et al.: Consistency between Jason-1 and TOPEX/Poseidon, Oral presentation, OSTST Hobart, 2007.; Altamimi,~Z., Sillard,~P., and Boucher,~C.: ITRF2000: A~new release of the International Terrestrial Reference Frame for earth science applications, J Geophys Res., 107(B10), 2114,doi:10.1029/2001JB000561, 2002.; Altamimi,~Z., Collilieux,~X., Legrand,~J., Garayt,~B., and Boucher,~C.: ITRF2005: A~new release of the International Terrestria...

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Super-ensemble Techniques Applied to Wave Forecast: Performance an...

By: C. Troupin; M. Rixen; L. Vandenbulcke; J.-m. Beckers; F. Lenartz; J. Chiggiato; B. Mourre

Description: NATO Undersea Research Centre (NURC), Viale San Bartolomeo 400, 19126 La Spezia, Italy. Nowadays, several operational ocean wave forecasts are available for a same region. These predictions may considerably differ, and to choose the best one is generally a difficult task. The super-ensemble approach, which consists in merging different forecasts and past observations into a single multi-model prediction system, is evaluated in this study. During the DART...

Cavaleri, L. and Bertotti, L.: In search of the correct wind and wave fields in a minor basin, Mon. Weather Rev., 125, 1964–1975, 1997.; Ardhuin, F., Jenkins, A. D., Hauser, D., Reniers, A., and Chapron, B.: Waves and operational oceanography: toward a coherent description of the upper ocean, Eos Transactions, American Geophysical Union, 86, 37–44, 2005.; Booij, N., Ris, R. C., and Holthuijsen, L. H.: A third-generation wave model for coastal regions{,} P}art1{., {M}odel...

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A Study on Distribution of Chlorophyll-A in the Coastal Waters of ...

By: N. Bin Abu Bakar; S. Jamshidi

Description: School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia. Phytoplankton as chlorophyll-containing organisms is the first step of production in most marine processes and food chains. Nutrient enhancement in the seawater due to the discharge of agricultural, industrial, and urban wastes threatens the Caspian Sea environment. Increasing concentrations of chlorophyll-a in seawater, in reaction to the elevation of nutrient supply can ...

Asadullayeva, E. and Alekperov, I.: Free-living ciliates of the Anzali Wetland of the Caspian Sea, Turkish Journal Zoology, 31, 143–149, 2007.; CEP: Transboundary Diagnostic Analysis for the Caspian Sea; Baku, Azerbaijan, pp. 36, 2002.; CEP: Identification of the extent and causes of cyan bacterial bloom in September-October 2005 and development of the capacity for observation and prediction of HAB in the Southern Caspian Sea using Remote Sensing Technique, MHI, Ukraine,...

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Seismic Imaging of a Thermohaline Staircase in the Western Tropica...

By: R. W. Schmitt; W. S. Holbrook; I. Fer; P. Páramo; P. Nandi

Description: Geophysical Institute, University of Bergen, Allégaten 70, 5007, Bergen, Norway. Multichannel seismic data acquired in the Lesser Antilles in the western tropical North Atlantic indicate that the seismic reflection method has imaged an oceanic thermohaline staircase. Synthetic acoustic modeling using measured density and sound speed profiles corroborates inferences from the seismic data. In a small portion of the seismic image, laterally coherent, uniform...

Garrett, C. J. and Munk, W. H.: Space-time scales of internal waves, Geophys. Fluid Dyn., 3, 225–264, 1972.; Bangs, N.: Ewing Cruise EW9803, 15 March–6 April 1998, Structure tectonics and sediment flow through the Lesser Antilles Subduction Zone, Tech. Rep., Institute og Geophysics, University of Texas, 1998.; Biescas, B., Sallar{è}s, V., Pelegri, J. L., Machin, F., Carbonell, R., Buffett, G., Da{ñ}obeitia, J. J., and Calahorrano, A.: Imaging Meddy finestructure using mu...

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