{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,12]],"date-time":"2026-03-12T19:37:14Z","timestamp":1773344234716,"version":"3.50.1"},"reference-count":70,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2018,1,25]],"date-time":"2018-01-25T00:00:00Z","timestamp":1516838400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Cape Trafalgar has been highlighted as a hotspot of high chlorophyll concentrations, as well as a source of biomass for the Albor\u00e1n Sea. It is located in an unique geographical framework between the Gulf of C\u00e1diz (GoC), which is dominated by long-term seasonal variability, and the Strait of Gibraltar, which is mainly governed by short-term tidal variability. Furthermore, here bathymetry plays an important role in the upwelling of nutrient-rich waters. In order to study the spatial and temporal variability of chlorophyll-a in this region, 10 years of ocean colour observations using the MEdium Resolution Imaging Spectrometer (MERIS) were analysed through different approaches. An empirical orthogonal function decomposition distinguished two coastal zones with opposing phases that were analysed by wavelet methods in order to identify their temporal variability. In addition, to better understand the physical\u2013biological interaction in these zones, the co-variation between chlorophyll-a and different environmental variables (wind, river discharge, and tidal current) was analysed. Zone 1, located on the GoC continental shelf, was characterised by a seasonal variability weakened by the influence of other environmental variables. Meanwhile, Zone 2, which represented the dynamics in Cape Trafalgar but did not show any clear pattern of variability, was strongly correlated with tidal current whose variability was probably determined by other drivers.<\/jats:p>","DOI":"10.3390\/rs10020165","type":"journal-article","created":{"date-parts":[[2018,1,25]],"date-time":"2018-01-25T12:25:49Z","timestamp":1516883149000},"page":"165","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":22,"title":["High-Chlorophyll-Area Assessment Based on Remote Sensing Observations: The Case Study of Cape Trafalgar"],"prefix":"10.3390","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5018-3544","authenticated-orcid":false,"given":"Iria","family":"Sala","sequence":"first","affiliation":[{"name":"Departamento de Biolog\u00eda, Facultad de Ciencias del Mar y Ambientales, Universidad de C\u00e1diz, Puerto Real, 11510 C\u00e1diz, Spain"},{"name":"Instituto Universitario de Investigaciones Marinas (INMAR), Campus de Excelencia Internacional del Mar (CEI-MAR), Universidad de C\u00e1diz, Puerto Real, 11510 C\u00e1diz, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8919-0060","authenticated-orcid":false,"given":"Gabriel","family":"Navarro","sequence":"additional","affiliation":[{"name":"Departamento de Ecolog\u00eda y Gesti\u00f3n Costera, Instituto de Ciencias Marinas de Andaluc\u00eda (ICMAN-CSIC), Puerto Real, 11510 C\u00e1diz, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6036-5840","authenticated-orcid":false,"given":"Marina","family":"Bolado-Penagos","sequence":"additional","affiliation":[{"name":"Instituto Universitario de Investigaciones Marinas (INMAR), Campus de Excelencia Internacional del Mar (CEI-MAR), Universidad de C\u00e1diz, Puerto Real, 11510 C\u00e1diz, Spain"},{"name":"Departamento de F\u00edsica Aplicada, Facultad de Ciencias del Mar y Ambientales, Universidad de C\u00e1diz, Puerto Real, 11510 C\u00e1diz, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2662-5506","authenticated-orcid":false,"given":"Fidel","family":"Echevarr\u00eda","sequence":"additional","affiliation":[{"name":"Departamento de Biolog\u00eda, Facultad de Ciencias del Mar y Ambientales, Universidad de C\u00e1diz, Puerto Real, 11510 C\u00e1diz, Spain"},{"name":"Instituto Universitario de Investigaciones Marinas (INMAR), Campus de Excelencia Internacional del Mar (CEI-MAR), Universidad de C\u00e1diz, Puerto Real, 11510 C\u00e1diz, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8920-9024","authenticated-orcid":false,"given":"Carlos","family":"Garc\u00eda","sequence":"additional","affiliation":[{"name":"Departamento de Biolog\u00eda, Facultad de Ciencias del Mar y Ambientales, Universidad de C\u00e1diz, Puerto Real, 11510 C\u00e1diz, Spain"},{"name":"Instituto Universitario de Investigaciones Marinas (INMAR), Campus de Excelencia Internacional del Mar (CEI-MAR), Universidad de C\u00e1diz, Puerto Real, 11510 C\u00e1diz, Spain"}]}],"member":"1968","published-online":{"date-parts":[[2018,1,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"175","DOI":"10.1175\/1520-0485(1997)027<0175:OTRVOT>2.0.CO;2","article-title":"On the relative vorticity of the Atlantic jet in the Albor\u00e1n Sea","volume":"27","author":"Haney","year":"1997","journal-title":"J. Phys. Oceanogr."},{"key":"ref_2","unstructured":"La Violette, P.E., and Lacombe, H. (1988). Tidal-induced pulses in the flow through the Strait of Gibraltar. Oceanol. Acta, 13\u201327. Available online: http:\/\/www.dtic.mil\/dtic\/tr\/fulltext\/u2\/a207824.pdf."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"14197","DOI":"10.1029\/2000JC900007","article-title":"Tide at the eastern section of the Strait of Gibraltar","volume":"105","author":"Vargas","year":"2000","journal-title":"J. Geophys. Res."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"4097","DOI":"10.1016\/S0967-0645(02)00144-3","article-title":"The boiling-water phenomena at Camarinal Sill, the Strait of Gibraltar","volume":"49","author":"Bruno","year":"2002","journal-title":"Deep Sea Res. Part II"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"1369","DOI":"10.1016\/S0967-0637(96)00065-9","article-title":"Coupling between physical and biological fields in the North Atlantic subtropical front southeast of the Azores","volume":"43","author":"Pingree","year":"1996","journal-title":"Deep Sea Res. Part I"},{"key":"ref_6","first-page":"1","article-title":"Surface circulation in the eastern North Atlantic, from drifters and altimetry","volume":"107","author":"Martins","year":"2002","journal-title":"J. Geophys. Res."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"40","DOI":"10.1215\/21573689-2152611","article-title":"Lagrangian transport pathways in the northeast Atlantic and their environmental impact","volume":"3","author":"Sala","year":"2013","journal-title":"Limnol. Oceanogr."},{"key":"ref_8","first-page":"157","article-title":"Budgets of the Mediterranean Sea: Their dependence on the local climate and on the characteristics of the Atlantic waters","volume":"2","year":"1979","journal-title":"Oceanol. Acta"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/0079-6611(88)90055-9","article-title":"The flow of Mediterranean water through the Strait of Gibraltar","volume":"21","author":"Armi","year":"1988","journal-title":"Prog. Oceanogr."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"4051","DOI":"10.1016\/S0967-0645(02)00142-X","article-title":"Low frequency variability of the exchanged flows through the Strait of Gibraltar during CANIGO","volume":"49","author":"Delgado","year":"2002","journal-title":"Deep Sea Res. Part II"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"205","DOI":"10.1016\/S0924-7963(02)00240-3","article-title":"Seasonal and wind-induced variability of Sea Surface Temperature patterns in the Gulf of C\u00e1diz","volume":"38","author":"Vargas","year":"2003","journal-title":"J. Mar. Syst."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"177","DOI":"10.1016\/j.jmarsys.2005.12.003","article-title":"Tidal induced variability of mixing processes on Camarinal Sill (Strait of Gibraltar): A pulsating event","volume":"60","author":"Bruno","year":"2006","journal-title":"J. Mar. Syst."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"1277","DOI":"10.1016\/j.dsr.2008.05.008","article-title":"Meteorologically forced subinertial flows and internalwave generation at the main sill of the Strait of Gibraltar","volume":"55","author":"Bruno","year":"2008","journal-title":"Deep Sea Res. Part I"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"66","DOI":"10.1016\/j.pocean.2013.06.006","article-title":"The importance of submesoscale processes for the exchange of properties through the Strait of Gibraltar","volume":"116","author":"Bruno","year":"2013","journal-title":"Progr. Oceanogr."},{"key":"ref_15","first-page":"1","article-title":"Recent observations of seasonal variability of the Mediterranean outflow in the Strait of Gibraltar","volume":"112","author":"Sannino","year":"2007","journal-title":"J. Geophys. Res."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"1241","DOI":"10.1016\/j.dsr2.2006.04.014","article-title":"Spatial and temporal variability of phytoplankton in the Gulf of C\u00e1diz through remote sensing images","volume":"53","author":"Navarro","year":"2006","journal-title":"Deep Sea Res. Part II"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"228","DOI":"10.1016\/j.pocean.2007.04.001","article-title":"The Gulf of C\u00e1diz pelagic ecosystem: A review","volume":"74","author":"Ruiz","year":"2007","journal-title":"Progr. Oceanogr."},{"key":"ref_18","first-page":"1","article-title":"Analyzing the tidal-related origin of subinertial flows through the Strait of Gibraltar","volume":"115","author":"Bruno","year":"2010","journal-title":"J. Geophys. Res."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"523","DOI":"10.1357\/002224007782689085","article-title":"Phytoplankton pigment distribution in the northwestern Albor\u00e1n Sea and meteorological forcing: A remote sensing study","volume":"65","author":"Navarro","year":"2007","journal-title":"J. Mar. Res."},{"key":"ref_20","first-page":"401","article-title":"Phytoplankton, bacterioplankton and nitrate reductase activity distribution in relation to physical structure in the northern Albor\u00e1n Sea and Gulf of C\u00e1diz (southern Iberian Peninsula)","volume":"15","author":"Prieto","year":"1999","journal-title":"Boletin Instituto Espanol de Oceanografia"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"4115","DOI":"10.1016\/S0967-0645(02)00145-5","article-title":"Physical-biological coupling in the Strait of Gibraltar","volume":"49","author":"Bruno","year":"2002","journal-title":"Deep Sea Res. Part II"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"817","DOI":"10.1093\/plankt\/24.8.817","article-title":"Hydrodynamics and the spatial distribution of plankton and TEP in the Gulf of C\u00e1diz (SW Iberian Peninsula)","volume":"24","author":"Prieto","year":"2002","journal-title":"J. Plankton Res."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"91","DOI":"10.1016\/S0025-3227(99)00132-2","article-title":"Patterns of bottom current flow deduced from dune asymmetries over the Gulf of C\u00e1diz shelf (southwest Spain)","volume":"164","author":"Lobo","year":"2000","journal-title":"Mar. Geol."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"115","DOI":"10.1016\/S0278-4343(01)00063-2","article-title":"The influence of tide-topography interaction on low-frequency heat and nutrient fluxes. Application to Cape Trafalgar","volume":"22","author":"Jorge","year":"2002","journal-title":"Cont. Shelf Res."},{"key":"ref_25","unstructured":"Caballero, I. (2015). Estudio de Procesos en La Desembocadura del Guadalquivir y Golfo de C\u00e1diz: Variabilidad Espacio-Temporal Mediante Teledetecci\u00f3n. [Ph.D. Thesis, University of Granada]."},{"key":"ref_26","first-page":"9","article-title":"Pigment Index Retrieval in Case 1 waters","volume":"4","author":"Morel","year":"2000","journal-title":"MERIS Algorithm Theor. Basis Doc."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"721","DOI":"10.12681\/mms.844","article-title":"The influence of the Guadalquivir River on spatio-temporal variability of suspended solid and chlorophyll in the eastern Gulf of C\u00e1diz","volume":"15","author":"Caballero","year":"2014","journal-title":"Mediterr. Mar. Sci."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"1261","DOI":"10.1016\/j.dsr2.2006.04.013","article-title":"Basin-scale structures governing the position of the deep fluorescence maximum in the Gulf of C\u00e1diz","volume":"53","author":"Navarro","year":"2006","journal-title":"Deep Sea Res. Part II"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"553","DOI":"10.1002\/qj.828","article-title":"The ERA-Interim reanalysis: configuration and performance of the data assimilation system","volume":"137","author":"Dee","year":"2011","journal-title":"Q. J. R. Meteorol. Soc."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"929","DOI":"10.1016\/S0098-3004(02)00013-4","article-title":"Classical tidal harmonic analysis including error estimates in MATLAB using T_TIDE","volume":"28","author":"Pawlowicz","year":"2002","journal-title":"Comput. Geosci."},{"key":"ref_31","first-page":"196","article-title":"Statistically homogeneous fields on a sphere","volume":"2","author":"Obukhov","year":"1947","journal-title":"Usp. Mat. Nauk"},{"key":"ref_32","unstructured":"Lorenz, E. (1956). Empirical orthogonal functions and statistical weather prediction. Scientific Report No. 1, Statistical Forecasting Project, Department of Meteorology."},{"key":"ref_33","unstructured":"Thomson, R.E., and Emery, W.J. (1998). Data Analysis Methods in Physical Oceanography, Elsevier."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"15753","DOI":"10.1029\/JC093iC12p15753","article-title":"Comment on \u201cEmpirical orthogonal function analysis of advanced very high resolution radiometer surface temperature patterns in Santa Barbara Channel\u201d by G.S.E. Lagerloef and R.L. Bernstein","volume":"93","author":"Kelly","year":"1988","journal-title":"J. Geophys. Res."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"699","DOI":"10.1175\/1520-0493(1982)110<0699:SEITEO>2.0.CO;2","article-title":"Sampling errors in the estimation of empirical orthogonal functions","volume":"110","author":"North","year":"1982","journal-title":"Mon. Weather Rev."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"287","DOI":"10.1007\/s00442-008-0993-2","article-title":"Wavelet analysis of ecological time series","volume":"156","author":"Cazelles","year":"2008","journal-title":"Oecologia"},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"2391","DOI":"10.1175\/1520-0477(1995)076<2391:CSDUWT>2.0.CO;2","article-title":"Climate signal detection using wavelet transform: How to make a time series sing","volume":"76","author":"Lau","year":"1995","journal-title":"Bull. Am. Meteorol. Soc."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"61","DOI":"10.1175\/1520-0477(1998)079<0061:APGTWA>2.0.CO;2","article-title":"A practical guide to wavelet analysis","volume":"79","author":"Torrence","year":"1998","journal-title":"Bull. Am. Meteorol. Soc."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"283","DOI":"10.1086\/423431","article-title":"Porcupine feeding scars and climatic data show ecosystem effects of the solar cycle","volume":"164","author":"Klvana","year":"2004","journal-title":"Am. Nat."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"95","DOI":"10.1111\/j.1365-2419.2006.00415.x","article-title":"Climatic oscillations and tuna catch rates in the Indian Ocean: A wavelet approach to time series analysis","volume":"16","author":"Marsac","year":"2007","journal-title":"Fish. Oceanogr."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"2895","DOI":"10.1890\/0012-9658(2006)87[2895:DOSCDU]2.0.CO;2","article-title":"Detection of scale-specific community dynamics using wavelets","volume":"87","author":"Keitt","year":"2006","journal-title":"Ecology"},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"1355","DOI":"10.1002\/lno.10501","article-title":"Environmental multi-scale effects on zooplankton inter-specific synchrony","volume":"62","author":"Buttay","year":"2017","journal-title":"Limnol. Oceanogr."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"561","DOI":"10.5194\/npg-11-561-2004","article-title":"Application of the cross wavelet transform and wavelet coherence to geophysical time series","volume":"11","author":"Grinsted","year":"2004","journal-title":"Nonlinear Process. Geophys. Eur. Geosci. Union"},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"953","DOI":"10.1046\/j.1365-2656.2003.00763.x","article-title":"Detection of imperfect population synchrony in an uncertain world","volume":"72","author":"Cazelles","year":"2003","journal-title":"J. Anim. Ecol."},{"key":"ref_45","unstructured":"Franz, B.A., Bailey, S.W., Meister, G., and Werdell, P.J. (2012, January 8\u201312). Consistency of the NASA Ocean Color Data Record. Proceedings of the Ocean Optics, Glasgow, UK."},{"key":"ref_46","doi-asserted-by":"crossref","unstructured":"Kremer, J., and Nixon, S. (1978). A Coastal Marine Ecosystem: Simulation and Analysis, Springer.","DOI":"10.1007\/978-3-642-66717-6"},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"24","DOI":"10.1016\/j.ecss.2012.02.010","article-title":"Submesoscale, tidally-induced biogeochemical patterns in the Strait of Gibraltar","volume":"101","author":"Bruno","year":"2012","journal-title":"Estuar. Coast. Shelf Sci."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"663","DOI":"10.1098\/rsta.1981.0191","article-title":"Slope turbulence, internal waves and phytoplankton growth at the Celtic Sea shelf-break","volume":"302","author":"Pingree","year":"1981","journal-title":"Philos. Trans. R. Soc. Lond. A"},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"513","DOI":"10.1016\/0198-0149(90)90022-N","article-title":"Large-amplitude internal soliton packets in the central Bay of Biscay","volume":"37","author":"New","year":"1990","journal-title":"Deep Sea Res."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"1703","DOI":"10.1175\/1520-0485(1993)023<1703:TUOSNS>2.0.CO;2","article-title":"Topographic upwelling off Southwest Nova Scotia","volume":"23","author":"Tee","year":"1993","journal-title":"J. Phys. Oceanogr."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"1521","DOI":"10.1016\/j.csr.2005.04.008","article-title":"Tide-topography interaction along the eastern Brazilian shelf","volume":"25","author":"Pereira","year":"2005","journal-title":"Cont. Shelf Res."},{"key":"ref_52","doi-asserted-by":"crossref","unstructured":"V\u00e1zquez, A., Flecha, S., Bruno, M., Mac\u00edas, D., and Navarro, G. (2009). Internal waves and short-scale distribution patterns of chlorophyll in the Strait of Gibraltar and Albor\u00e1n Sea. Geophys. Res. Lett., 36.","DOI":"10.1029\/2009GL040959"},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"1111","DOI":"10.1016\/0198-0149(88)90003-9","article-title":"Formation of the Albor\u00e1n oxygen minimum zone","volume":"35","author":"Packard","year":"1988","journal-title":"Deep Sea Res."},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"8755","DOI":"10.1029\/91JC00360","article-title":"Biological and geochemical signatures associated with the water circulation through the Strait of Gibraltar and in the Western Albor\u00e1n Sea","volume":"96","author":"Minas","year":"1991","journal-title":"J. Geophys. Res."},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"252","DOI":"10.1016\/j.pocean.2007.04.006","article-title":"Analysis of mixing and biogeochemical tides on the Atlantic-Mediterranean effects induced by flow in the Strait of Gibraltar through a physical-biological coupled model","volume":"74","author":"Martin","year":"2007","journal-title":"Prog. Oceanogr."},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"13","DOI":"10.1016\/S0422-9894(08)71237-6","article-title":"The regime of the Strait of Gibraltar","volume":"Volume 34","author":"Nihoul","year":"1982","journal-title":"Elsevier Oceanography Series"},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/S0924-7963(98)00068-2","article-title":"The thermohaline forcing of the Gibraltar exchange","volume":"20","author":"Hopkins","year":"1999","journal-title":"J. Mar. Syst."},{"key":"ref_58","first-page":"31","article-title":"Climatological space and time variation of the Portuguese coastal upwelling","volume":"5","author":"Guerreiro","year":"1982","journal-title":"Oceanol. Acta"},{"key":"ref_59","first-page":"85","article-title":"Upwelling Patterns off Portugal","volume":"Volume 10B","author":"Suess","year":"1983","journal-title":"Coastal Upwelling Its Sediment Record"},{"key":"ref_60","doi-asserted-by":"crossref","first-page":"404","DOI":"10.1038\/250404a0","article-title":"Fronts in the Irish Sea","volume":"250","author":"Simpson","year":"1974","journal-title":"Nature"},{"key":"ref_61","doi-asserted-by":"crossref","first-page":"1398","DOI":"10.3390\/s120201398","article-title":"Use of a real-time remote monitoring network (RTRM) to characterize the Guadalquivir estuary (Spain)","volume":"12","author":"Navarro","year":"2012","journal-title":"Sensors"},{"key":"ref_62","doi-asserted-by":"crossref","unstructured":"Finkl, C., and Makowski, C. (2015). The Guadalquivir estuary: A hot spot for environmental and human conflicts. Environmental Management and Governance, Coastal Research Library Springer.","DOI":"10.1007\/978-3-319-06305-8"},{"key":"ref_63","doi-asserted-by":"crossref","first-page":"162","DOI":"10.1016\/j.rse.2017.05.029","article-title":"Unravelling region-specific environmental drivers of phytoplankton across a complex marine domain (off SW Iberia)","volume":"203","author":"Krug","year":"2017","journal-title":"Remote Sens. Environ."},{"key":"ref_64","doi-asserted-by":"crossref","unstructured":"Stanichny, S., Tigny, V., Stanichnaya, R., and Djenidi, S. (2005). Wind driven upwelling along the African coast of the Strait of Gibraltar. Geophys. Res. Lett., 32.","DOI":"10.1029\/2004GL021760"},{"key":"ref_65","doi-asserted-by":"crossref","first-page":"1144","DOI":"10.1016\/j.dsr2.2006.04.012","article-title":"Distribution and circulation of water masses in the Gulf of C\u00e1diz from in situ observations","volume":"53","author":"Vargas","year":"2006","journal-title":"Deep Sea Res. Part II"},{"key":"ref_66","doi-asserted-by":"crossref","unstructured":"Criado-Aldeanueva, F., Garc\u00eda-Lafuente, J., Navarro, G., and Ruiz, J. (2009). Seasonal and interannual variability of the surface circulation in the eastern Gulf of C\u00e1diz (SW Iberia). J. Geophys. Res., 114.","DOI":"10.1029\/2008JC005069"},{"key":"ref_67","doi-asserted-by":"crossref","first-page":"154","DOI":"10.1038\/321154a0","article-title":"Propagation of internal tides from the upper slopes of the Bay of Biscay","volume":"321","author":"Pingree","year":"1986","journal-title":"Nature"},{"key":"ref_68","doi-asserted-by":"crossref","first-page":"348","DOI":"10.1038\/314348a0","article-title":"Oceanic solitons, nutrient pulses and phytoplankton growth","volume":"314","author":"Holligan","year":"1985","journal-title":"Nature"},{"key":"ref_69","doi-asserted-by":"crossref","unstructured":"Lezama-Ochoa, A., Irigoien, X., Chaigneau, A., Quiroz, Z., Lebourges-Dhaussy, A., and Bertrand, A. (2014). Acoustics reveals the presence of a macrozooplankton biocline in the Bay of Biscay in response to hydrological conditions and predator-prey relationships. PLoS ONE, 9.","DOI":"10.1371\/journal.pone.0088054"},{"key":"ref_70","doi-asserted-by":"crossref","first-page":"250","DOI":"10.1016\/j.ecss.2007.12.008","article-title":"Meteorologically-induced mesoscale variability of the north-western Albor\u00e1n Sea (southern Spain) and related biological patterns","volume":"78","author":"Bruno","year":"2008","journal-title":"Estuar. Coast. Shelf Sci."}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/10\/2\/165\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T14:52:32Z","timestamp":1760194352000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/10\/2\/165"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,1,25]]},"references-count":70,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2018,2]]}},"alternative-id":["rs10020165"],"URL":"https:\/\/doi.org\/10.3390\/rs10020165","relation":{},"ISSN":["2072-4292"],"issn-type":[{"value":"2072-4292","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,1,25]]}}}