Search references for F RATIO-OCEANOGRAPHY. Phrases containing F RATIO-OCEANOGRAPHY
See searches and references containing F RATIO-OCEANOGRAPHY!F RATIO-OCEANOGRAPHY
In oceanic biogeochemistry, the fraction of total primary production fuelled by nitrate
In oceanic biogeochemistry, the f-ratio is the fraction of total primary production fuelled by nitrate (as opposed to that fuelled by other nitrogen compounds
F-ratio_(oceanography)
Topics referred to by the same term
f-ratio (oceanography), which relates recycled and total primary production in the surface ocean f-number, f-ratio, or focal ratio, the ratio of the focal
F-ratio
Scientific study of the ocean
Oceanography (from Ancient Greek ὠκεανός (ōkeanós) 'ocean' and γραφή (graphḗ) 'writing'), also known as oceanology, sea science, ocean science, and marine
Oceanography
the ratio 2 or the unit decade (symbol: dec) corresponding to the ratio 10: L f = log 2 ( f f 0 ) oct = log 10 ( f f 0 ) dec . {\displaystyle L_{f}=\log
Level_(logarithmic_quantity)
Carbon capture process in oceans
sustaining their biomass, density, and biodiversity. f-ratio (oceanography) Lysocline Mooring (oceanography) Apparent oxygen utilisation Sigman DM & GH Haug
Biological_pump
Chemistry of oceans and seas
Marine chemistry, also known as ocean chemistry or chemical oceanography, is the study of the chemical composition and processes of the world’s oceans
Marine_chemistry
Anaerobic respiration process by microbes
Oceanography. 14 (4): 50–58. doi:10.5670/oceanog.2001.06.{{cite journal}}: CS1 maint: multiple names: authors list (link) "Determining the f-ratio" (PDF)
Dissimilatory nitrate reduction to ammonium
Dissimilatory_nitrate_reduction_to_ammonium
Body of water with common formation history
An oceanographic water mass is an identifiable body of water with a common formation history which has physical properties distinct from surrounding water
Water_mass
Measure of small-scale variations of amplitude in the height of a surface
sonar and laser altimetry, based from ships, planes or satellites). Oceanography: Among oceanographers, rugosity is recognized to influence small-scale
Rugosity
Oceanographic Phenomenon
(2000-05-01). "Origin of Thermohaline Staircases". Journal of Physical Oceanography. 30 (5): 1046–1068. Bibcode:2000JPO....30.1046M. doi:10
Thermohaline_staircase
Hierarchical outline list of articles related to oceanography
following outline is provided as an overview of and introduction to Oceanography. Oceanography (from Ancient Greek ὠκεανός (ōkeanós) 'ocean' and γραφή (graphḗ) 'writing')
Outline_of_oceanography
Large formation of floating ice
February 2021). "Aspect ratio affects iceberg melting". Physical Review Fluids. 6 (2) 023802. arXiv:2009.10281. Bibcode:2021PhRvF...6b3802H. doi:10.1103/PhysRevFluids
Iceberg
Study of light interaction with water and submerged materials
Perry, Mary Jane (2016). "SIDEBAR. The Optical Oceanography Class Turned 30 in Summer 2015". Oceanography. 29 (1): 32–33. doi:10.5670/oceanog.2016.07. Ocean
Ocean_optics
Measure of relative carbon-13 concentration in a sample
(2012) [2003]. Biological Oceanography (2nd ed.). Oxford: John Wiley & Sons. ISBN 978-1-4443-3301-5. Mook, W. G., & Tan, F. C. (1991). Stable carbon isotopes
Δ13C
Concept in atmospheric dynamics and physical oceanography
In atmospheric dynamics and physical oceanography, the Rossby radius of deformation is the length scale at which rotational effects become as important
Rossby_radius_of_deformation
Water from a sea or an ocean
properties of seawater, and several distinct pH scales exist in chemical oceanography. There is no universally accepted reference pH-scale for seawater and
Seawater
Retired US Navy officer and professor of oceanography (born 1942)
June 30, 1942) is an American retired Navy officer and a professor of oceanography at the University of Rhode Island who is noted for his work in underwater
Robert_Ballard
Dimensionless metric in fluid dynamics
number is the ratio of buoyant production (or suppression) of turbulence kinetic energy to the production of turbulence by shear: R i f = ( g / T v )
Richardson_number
Convection with two density gradients
convection to continue. A common example of double diffusive convection is in oceanography, where heat and salt concentrations exist with different gradients and
Double_diffusive_convection
Proportion of salt dissolved in water
Scale 1978. Tech. Pap. Mar. Sci., 37 Millero, F. J. (1993). "What is PSU?". Oceanography. 6 (3): 67. Culkin, F.; Smith, N. D. (1980). "Determination of the
Salinity
Return flow below nearshore water waves
In physical oceanography, undertow is the undercurrent that moves offshore while waves approach the shore. Undertow is a natural and universal feature
Undertow_(water_waves)
Measurement scale based on orders of magnitude
Palermo technical impact hazard scale Logarithmic timeline Counting f-stops for ratios of photographic exposure The rule of nines used for rating low probabilities
Logarithmic_scale
Shower of organic detritus in the ocean
Oceans portal Biological pump Detritivore Diffusion-limited aggregation f-ratio Martin curve Particulate organic matter Sea snot Sediment trap Whale fall
Marine_snow
Technique used to measure temperatures and currents over large regions of the ocean
temperature. A 1 °C (1.8 °F) change in temperature corresponds to about 4 metres per second (13 ft/s) change in sound speed. An oceanographic experiment employing
Ocean_acoustic_tomography
Instrument used in oceanography to measure the quantity of sinking particulate material
satellite) in order to be recovered. Biological pump f-ratio Marine snow Mooring (oceanography) Primary production Raven, J.A.; Falkowski, P.G. (1999)
Sediment_trap
American oceanographer (born 1943)
Educated at the University of Washington––where he earned a Ph.D. in oceanography in 1973––Ebbesmeyer monitored ocean currents by tracking buoys and markers
Curtis_Ebbesmeyer
Graph of atmospheric CO2 from 1958 to the present
the measurements. Charles David Keeling, of the Scripps Institution of Oceanography at UC San Diego, was the first person to make frequent regular measurements
Keeling_Curve
Vortices at the ocean's surface
In physical oceanography, Langmuir circulation consists of a series of shallow, slow, counter-rotating vortices at the ocean's surface aligned with the
Langmuir_circulation
Standard defining the isotopic composition of ocean water
oxygen-18 concentrations, Harmon Craig of the Scripps Institution of Oceanography in San Diego, California, proposed an abstract water standard. He based
Vienna Standard Mean Ocean Water
Vienna_Standard_Mean_Ocean_Water
Ratio of carbon dioxide produced by the body to oxygen consumed by the body
respiratory exchange ratio (RER) is the ratio between the metabolic production of carbon dioxide (CO2) and the uptake of oxygen (O2). The ratio is determined
Respiratory_quotient
Permanently stratified lake with layers of water that do not intermix
Hakala (2004). Walker, K. F. (March 1974). "The Stability of Meromictic Lakes in Central Washington". Limnology and Oceanography. 19 (2): 209–222. Bibcode:1974LimOc
Meromictic_lake
Net transport of surface water perpendicular to wind direction
Dimensionless ratio of viscous to Coriolis forces Ekman velocity – Formula for wind induced water current velocity Upwelling – Oceanographic phenomenon of
Ekman_transport
Genus of brown algae
available in monitoring sites like University of South Florida, Optical Oceanography Laboratory (USF-Oceans), CARICOOS, NOAA COASTWATCH OCEANVIEWER, Sargassum
Sargassum
Body of salt water covering most of Earth
June 7, 2007. Charette, Matthew; Smith, Walter H. F. (2010). "The volume of Earth's ocean". Oceanography. 23 (2): 112–114. Bibcode:2010Ocgpy..23b.112C. doi:10
Ocean
Unexpectedly large transient ocean surface wave
earthquakes). A rogue wave at the shore is sometimes called a sneaker wave. In oceanography, rogue waves are more precisely defined as waves whose heights are more
Rogue_wave
Ocean regions with little phytoplankton
Research Part I: Oceanographic Research Papers. 46 (11): 1923–1968. Bibcode:1999DSRI...46.1923P. doi:10.1016/s0967-0637(99)00033-3. Chavez, F P., and J R Toggweiler
High-nutrient, low-chlorophyll regions
High-nutrient,_low-chlorophyll_regions
Part of the pelagic zone
deep-diving cetaceans: Roles of mesoscale oceanography and light-driven cycles". Progress in Oceanography. 239 103581. Bibcode:2025PrOce.23903581C. doi:10
Mesopelagic_zone
Study of the propagation of sound in water
study, including sonar, transduction, signal processing, acoustical oceanography, bioacoustics, and physical acoustics. Underwater sound has probably
Underwater_acoustics
Area of geometry, about angles and lengths
the trigonometric functions relate the angles of a right triangle with ratios of its side lengths. The field emerged in the Hellenistic world during the
Trigonometry
Subsurface maximum in the concentration of chlorophyll
the Arabian Sea" (PDF). Deep Sea Research Part II: Topical Studies in Oceanography. 40 (3): 711–735. Bibcode:1993DSRII..40..711J. doi:10.1016/0967-0645(93)90054-q
Deep_chlorophyll_maximum
Zone of the open ocean
Gerhard J. (September 2009). "Microbial oceanography of the dark ocean's pelagic realm". Limnology and Oceanography. 54 (5): 1501–1529. Bibcode:2009LimOc
Bathypelagic_zone
202000029. Miller, Charles B.; Wheeler, Patricia (2012). Biological oceanography (2nd ed.). Chichester, West Sussex: John Wiley & Sons, Ltd. p. 186. ISBN 9781444333022
Isotopes_of_carbon
Scientific study of ocean life
with biological oceanography. Marine life is a field of study both in marine biology and in biological oceanography. Biological oceanography is the study
Marine_biology
Distinct layer of temperature change in a body of water
blanket. The first accurate global measurements were made during the oceanographic expedition of HMS Challenger. In the open ocean, the thermocline is
Thermocline
Ocean/atmosphere carbon exchange process
as well as scientists from NOAA, Woods Hole Oceanographic Institution, Scripps Institution of Oceanography, CSIRO, and Oak Ridge National Laboratory, the
Oceanic_carbon_cycle
Mechanism that maintains marine microbial diversity
Microbiology as well as the Association for the Sciences of Limnology and Oceanography (ASLO). The field of marine virology has rapidly expanded since the mid-1990s
Viral_shunt
Speed of sound wave through elastic medium
underwater sound can be found in sonar, acoustic communication and acoustical oceanography. In salt water that is free of air bubbles and suspended sediment, sound
Speed_of_sound
Species of crustacean
plumchrus copepodites". Fisheries Oceanography. 12 (3): 201–208. doi:10.1046/j.1365-2419.2003.00233.x. Razouls C.; de Bovée F.; Kouwenberg J.; Desreumaux N
Neocalanus_plumchrus
"Transparent exopolymer particles (TEP) in aquatic environments". Progress in Oceanography. 55 (3–4): 287–333. Bibcode:2002PrOce..55..287P. doi:10.1016/S0079-6611(02)00138-6
Transparent exopolymer particles
Transparent_exopolymer_particles
Genus of bacteria
prokaryote". Limnology and Oceanography. 37 (2): 425–433. Bibcode:1992LimOc..37..425R. doi:10.4319/lo.1992.37.2.0425. G. Rocap, G.; Larimer, F.W.; Lamerdin, J.;
Prochlorococcus
carbon found in the ocean. These distinctions are important in chemical oceanography. Particulate inorganic carbon is sometimes called suspended inorganic
Particulate_inorganic_carbon
Ratio of inertial to viscous forces acting on a liquid
helps predict fluid flow patterns in different situations by measuring the ratio between inertial and viscous forces. At low Reynolds numbers, flows tend
Reynolds_number
Autotrophic members of the plankton ecosystem
in water bodies Thin layers (oceanography) – Congregations of plankton Thurman, H. V. (2007). Introductory Oceanography. Academic Internet Publishers
Phytoplankton
Ratio of inertial force to Coriolis force
dimensionless number used in describing fluid flow. The Rossby number is the ratio of inertial force to Coriolis force, terms | v ⋅ ∇ v | ∼ U 2 / L {\displaystyle
Rossby_number
Fluid dynamics process driving mixing in the oceans
expressed as the ratio between its horizontal ( k {\displaystyle k} ) and vertical ( m {\displaystyle m} ) wavenumbers: r = | k m | = ω 2 − f 2 N 2 − ω 2 {\displaystyle
Internal_wave_breaking
Geographically located ocean measurement site
Station P (also known as Ocean Station Papa or OSP) is a long-term oceanographic observatory located in the subarctic Northeast Pacific Ocean at coordinates
Station P (ocean measurement site)
Station_P_(ocean_measurement_site)
Congregations of plankton
coastal upwelling zone". Deep Sea Research Part II: Topical Studies in Oceanography. 56 (3–5): 246–259. Bibcode:2009DSRII..56..246J. doi:10.1016/j.dsr2.2008
Thin_layers_(oceanography)
Any large system of circulating ocean surface currents
North Pacific gyre South Pacific gyre South Atlantic gyre In oceanography, a gyre (/ˈdʒaɪər/) is a large system of ocean surface currents moving
Ocean_gyre
Non-soluble organic matter in aquatic and soil systems
". Progress in Oceanography. 72 (4): 276–312. Bibcode:2007PrOce..72..276B. doi:10.1016/j.pocean.2006.10.007. Cavan, E. L.; Le Moigne, F. A. C.; Poulton
Particulate_organic_matter
Atmospheric chemist
is a professor of atmospheric chemistry at the Scripps Institute of Oceanography a division of the University of California, San Diego in La Jolla, California
Lynn_M._Russell
Movement of water from the Pacific to the West Philippine/South China Sea
intrusion Chu, P. C.; Li, R. F. (2000). "South China Sea Isopycnal-Surface Circulation". Journal of Physical Oceanography. 30 (2419): 2419. Bibcode:2000JPO
Kuroshio_Current_Intrusion
Optical sensor device to measure a specific substance
lifetime-based optode to measure oxygen in aquatic systems. Limnology and Oceanography methods, 4, 7-17. Open Access version : https://archimer.ifremer.fr/doc/00000/1413/
Optode
Circulating system of ocean currents in the Ross Sea
utilization ratios in the Pacific sector of the Southern Ocean based on seasonal changes in seawater chemistry". Deep Sea Research Part I: Oceanographic Research
Ross_Gyre
Balance between production and consumption of organic matter in lakes
James F. (December 2000). "Persistence of net heterotrophy in lakes during nutrient addition and food web manipulations". Limnology and Oceanography. 45
Lake_metabolism
Directional mass flow of oceanic water
Physical Oceanography. 35 (4): 545–64. Bibcode:2005JPO....35..545P. doi:10.1175/JPO2699.1. S2CID 130736022. Scripps Institution of Oceanography, UC San
Ocean_current
Unicellular algae responsible for the formation of chalk
in Oceanography. 54 (5–7): 538–557. Bibcode:2007DSRII..54..538P. doi:10.1016/j.dsr2.2006.12.003. Broecker, Wallace; Clark, Elizabeth (2009). "Ratio of
Coccolithophore
Net ecosystem production (NEP) in ecology, limnology, and oceanography, is the difference between gross primary production (GPP) and net ecosystem respiration
Net_ecosystem_production
Swirling and reverse current in a turbulent flow regime
Journal of Physical Oceanography. 49 (9): 2345–2363. Bibcode:2019JPO....49.2345C. doi:10.1175/JPO-D-18-0215.1. ISSN 0022-3670. Roman, F.; Stipcich, G.; Armenio
Eddy_(fluid_dynamics)
Fragile and often translucent animals that live in the water column
Karen F.; Zhang, Jing (2010). "Mesopelagic zone ecology and biogeochemistry – a synthesis". Deep Sea Research Part II: Topical Studies in Oceanography. 57
Gelatinous_zooplankton
Species of bird
in madeira, and intermediate in feae (f:11.9, d: 12.9, m: 10.5). In terms of ratios: (Bill length/wing length) (f:11.1%, d: 10.8%, m: 10.6%) is rather
Desertas_petrel
years) and is most often measured by the 187Os/188Os ratio. This ratio, as well as the 187Re/188Os ratio, have been used extensively in dating terrestrial
Isotopes_of_osmium
Calcium carbonate scales covering some phytoplankton species
in Oceanography. 54 (5–7): 538–557. Bibcode:2007DSRII..54..538P. doi:10.1016/j.dsr2.2006.12.003. Broecker, Wallace; Clark, Elizabeth (2009). "Ratio of
Coccolith
also be used in archeology, mining, farming, oceanography, urban planning, and other industries. Nicodemus, F E; Richmond, J C; Hsia, J J; Ginsberg, I W;
Light_reflectance_value
American chemist
before spending the majority of his career at Scripps Institution of Oceanography (1955-2003). Craig was involved in numerous research expeditions, which
Harmon_Craig
Probability distribution
plotting positions as part of a cumulative frequency analysis. In physical oceanography, the sizes of icebergs in the midwinter Southern Atlantic Ocean were
Log-normal_distribution
Hypothesized depth at which phytoplankton growth is matched by losses
In biological oceanography, critical depth is defined as a hypothetical surface mixing depth where phytoplankton growth is precisely matched by losses
Critical_depth
Marine biological processes using nutrients from outside the euphotic zone
In biological oceanography, new production is supported by nutrient inputs from outside the euphotic zone, especially upwelling of nutrients from deep
New_production
Family of tunicates
their predator to prey mass ratio is very large at almost 50 million : 1. Predator to prey mass ratio refers to the ratio between the mass of the predator
Pyrosome
Bottleneck variable limiting the evolution of a system
show positive effects, which is evidence of serial co-limitation. In oceanography, a prime example of a limiting factor is a limiting nutrient. Nutrient
Limiting_factor
Method to determine the age of an object
depending on whether the 14 C/12 C or 14 C/13 C ratio is being used. If the 14 C/12 C ratio is being used: F m m s = F m u c ( 1 + − 25 1000 1 + δ 13 C s 1000
Calculation of radiocarbon dates
Calculation_of_radiocarbon_dates
Holocene climate period during which northern Africa was wetter than today
Ocean over the last 150 thousand years". Deep Sea Research Part I: Oceanographic Research Papers. 190 103892: 10. Bibcode:2022DSRI..19003892D. doi:10
African_humid_period
Partially enclosed coastal body of brackish water
Bibcode:2020Water..12..647D. doi:10.3390/w12030647. Tomczak, M. (2000). "Oceanography Notes Ch. 12: Estuaries". Archived from the original on 7 December 2006
Estuary
Planet containing a significant amount of water or other liquid
exosea). The study of extraterrestrial oceans is referred to as planetary oceanography. Earth is the only astronomical object known to presently have bodies
Ocean_world
Aquatic region of low-nutrient concentration
Limnology and Oceanography. 36 (3): 424–432. Bibcode:1991LimOc..36..424K. doi:10.4319/lo.1991.36.3.0424. Huertas, I. E.; Ríos, A. F.; García-Lafuente
Low-nutrient, low-chlorophyll region
Low-nutrient,_low-chlorophyll_region
Condition when water is both anoxic and sulfidic
adapted phototrophic sulfur bacterium from the Black Sea". Limnology and Oceanography. 37 (1): 150–155. Bibcode:1992LimOc..37..150O. doi:10.4319/lo.1992.37
Euxinia
Optically measurable component of the dissolved organic matter in water
CDOM fluorescent (fDOM) measurement values used as a proxy. For example, there are significant differences between CDOM:fDOM ratios when comparing terrestrial
Colored dissolved organic matter
Colored_dissolved_organic_matter
U.S. nonprofit organization
Christopher F. D'Elia, 1991–1993 "Determination of total nitrogen in aqueous samples using persulfate digestion." Limnology and Oceanography 1977 Frederic
Coastal and Estuarine Research Federation
Coastal_and_Estuarine_Research_Federation
Period of climatic warming that reached its peak approximately 90 million years ago
(2018). "Cretaceous Thermal Maximum ~85-90 Ma." Scripps Institution of Oceanography. Accessed 20 September 2018. http://scrippsscholars.ucsd
Cretaceous_Thermal_Maximum
Strong increase in phytoplankton abundance that typically occurs in the early spring
Publishing Ltd. ISBN 1-4051-1118-6 Miller, C.B. (2004). "Biological Oceanography" Oxford: Blackwell Publishing Ltd. ISBN 978-0-632-05536-4 Winder, M.
Spring_bloom
phenomena. They include the Reynolds and the Mach numbers, which describe as ratios the relative magnitude of fluid and physical system characteristics, such
Dimensionless numbers in fluid mechanics
Dimensionless_numbers_in_fluid_mechanics
Scientific radar
Height Measurements NOAA HF Radar Oceanography Defense Technical Information Centre - HF Surface Wave Radar for Oceanography -- A Review of Activities in Germany
Coastal ocean dynamics applications radar
Coastal_ocean_dynamics_applications_radar
Very long term changes in Earth's temperature
climate and oceanography of the time. Evidence for past temperatures comes mainly from isotopic considerations (especially δ18O); the Mg/Ca ratio of foram
Geologic_temperature_record
Study of the oceans in the geologic past
can be extracted from deep-sea sediment cores using oxygen isotope ratios and the ratio of magnesium to calcium (Mg/Ca) in shell secretions from plankton
Paleoceanography
Organic carbon classification
International License Delong, Edward F.; Karl, David M. (2005). "Genomic perspectives in microbial oceanography". Nature. 437 (7057): 336–342. Bibcode:2005Natur
Dissolved_organic_carbon
Mathematical representation of particulate organic carbon export to ocean floor
and error propagation in the vertical flux Martin curve". Progress in Oceanography. 135: 146–155. Bibcode:2015PrOce.135..146O. doi:10.1016/j.pocean.2015
Martin_curve
Basaltic underwater mountain system formed by plate tectonic spreading
(1982-01-01), "Chapter 2 The World's Oceanic Ridge System", Elsevier Oceanography Series, Petrology of the Ocean Floor, vol. 33, Elsevier, pp. 51–139,
Mid-ocean_ridge
City in California, United States
almost 3 °F (1.7 °C) since 1950, according to scientists at Scripps Institution of Oceanography. Additionally, the mean minimum is now above 40 °F (4 °C)
San_Diego
Satellite-borne sensor designed to collect global ocean biological data
concentrations. To facilitate these comparisons, NASA maintains a system of oceanographic and atmospheric data called SeaBASS (SeaWiFS Bio-optical Archive and
SeaWiFS
Heterotrophic protistan or metazoan members of the plankton ecosystem
"Controls on the ratio of mesozooplankton production to primary production in marine ecosystems". Deep Sea Research Part I: Oceanographic Research Papers
Zooplankton
Biology term
predator–prey ratios in three wolf-ungulate systems," Journal of Animal Ecology, 2011. Lalli CM, Parsons TR, "Biological Oceanography: An Introduction
Predation_rates
F RATIO-OCEANOGRAPHY
F RATIO-OCEANOGRAPHY
Boy/Male
Hindu, Indian
Satisfied; Loved; Joyful
Boy/Male
Hindu, Indian
Jewel
Girl/Female
Celebrity, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Telugu
Most Beautiful Lady; Wife of Cupid
Boy/Male
Latin
Ameaning bringer of joy. In the Divine Comedy, Beatrice was Dante's guide through Paradise,...
Boy/Male
Muslim
Arranger
Male
Hungarian
Hungarian form of Greek Christophoros, KRISTÓF means "Christ-bearer."Â
Boy/Male
Hindu, Indian, Tamil
Husband of Rati; Manmatha
Boy/Male
Indian, Sanskrit
Lord of Rati
Boy/Male
Arabic, Hindu, Indian, Muslim
Arranger
Boy/Male
Indian
The most kind, The clement
Male
Serbian
(Ратко) Serbian name derived from the Slavic element rad, RATKO means "happy."
Female
Hindi/Indian
(रति) Hindi myth name of the wife of Kama, RATI means "pleasure."
Girl/Female
Hindu
Consort of cupid (Kamdev), Love, Pleasure
Boy/Male
Gujarati, Hindu, Indian
Kamdev's Wife
Boy/Male
Muslim
The most kind, The clement
Girl/Female
Indian, Malayalam
Husband of Rati Devi
Girl/Female
Indian
Wife of Pradyumna.
Male
Croatian
, happy, joyful.
Boy/Male
Arabic, Muslim
Another Name for God; One who Brings Together
Girl/Female
Shakespearean
Henry VI, Part 2' Queen to King Henry VI.
F RATIO-OCEANOGRAPHY
F RATIO-OCEANOGRAPHY
F RATIO-OCEANOGRAPHY
F RATIO-OCEANOGRAPHY
F RATIO-OCEANOGRAPHY
F RATIO-OCEANOGRAPHY
F RATIO-OCEANOGRAPHY