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Seasonal Fluxes Of Silicoflagellates And Actiniscus In The Subarctic Pacific During 1982-1984, Kozo Takahashi
Seasonal Fluxes Of Silicoflagellates And Actiniscus In The Subarctic Pacific During 1982-1984, Kozo Takahashi
Journal of Marine Research
A seasonal flux study of silicoflagellates and Actiniscus was conducted at subarctic Pacific Station PAPA (50N, 145W; water depth 4200 m) during September, 1982 through August, 1984 using PARFLUX high resolution time series sediment traps deployed at 1000 m and 3800 m depths. The time series sediment trap samples were collected for 4 to 16-day periods depending on the samples; most of the samples were collected for 14 to 16-day periods. From a depth of 3800 m, a total of 47 samples represents a nearly two-year continuous record of the fluxes of silicoflagellate and Actiniscus taxa. An additional 12 samples …
Modeling Eddy Transport Of Passive Tracers, Russ E. Davis
Modeling Eddy Transport Of Passive Tracers, Russ E. Davis
Journal of Marine Research
The mean advective and eddy transport of a passive scalar property is examined. Using a theory based on rational approximation of Lagrangian particle statistics, a transport equation relating the mean eddy flux and the mean concentration field Θ is developed. The transport equation is an elaborated advection-diffusion model in which the mean eddy flux is determined by the recent history of the gradient of Θ. The flux law involves an eddy diffusivity which depends on time lag and is defined in terms of fluid particle trajectories. Particle trajectories in simulated geophysical turbulence are used to test the applicability of the …
The Importance Of A Plume Of Tidally-Mixed Water To The Biological Oceanography Of The Gulf Of Maine, David W. Townsend, John P. Christensen, David K. Stevenson, Joseph J. Graham, Stanley B. Chenoweth
The Importance Of A Plume Of Tidally-Mixed Water To The Biological Oceanography Of The Gulf Of Maine, David W. Townsend, John P. Christensen, David K. Stevenson, Joseph J. Graham, Stanley B. Chenoweth
Journal of Marine Research
During the warmer months of the year the eastern Gulf of Maine features a plume of cold water which extends from the tidally well-mixed area adjacent to Grand Manan Island at the mouth of the Bay of Fundy southwest along the Maine coast to well beyond Penobscot Bay. Near Grand Manan Island the plume waters are cold (ca. 10°C), nearly vertically isothermal and carry high concentrations of dissolved inorganic nutrients. The analysis of temperature-salinity diagrams and hydrographic vertical section plots indicate that the deeper waters in Jordan Basin, of slope water origin, upwell and contribute a significant fraction of the …
The Freshwater Pulse—A Numerical Model With Application To The St. Lawrence Estuary, Kim-Tai Tee, Thin-Hock Lim
The Freshwater Pulse—A Numerical Model With Application To The St. Lawrence Estuary, Kim-Tai Tee, Thin-Hock Lim
Journal of Marine Research
The freshwater pulse, characterized by a salinity minimum, has been observed in many coastal areas. A 2-D numerical model was developed to investigate the laterally averaged estuarine circulation, and the freshwater pulse in the St. Lawrence Estuary. The effects on the circulation and salinity of various parameters, including vertical eddy coefficients, river runoff, the bottom friction coefficient and the open boundary condition were studied.The freshwater pulse in the St. Lawrence Estuary was simulated using a seasonal variation of the freshwater runoff. In addition to simulating the downstream propagation and the reduction of the pulse's amplitude toward both the ocean and …
Zooplankton Grazers As Transformers Of Ocean Optics: A Dynamic Model, Mark E. Huntley, Victor Marin, Florence Escritor
Zooplankton Grazers As Transformers Of Ocean Optics: A Dynamic Model, Mark E. Huntley, Victor Marin, Florence Escritor
Journal of Marine Research
A model was developed, based on data collected in the Southern California Bight region, to assess the effect of zooplankton grazing on the attenuation of light due to suspended particles. Diel vertical distribution and grazing activity of the principal zooplankton grazers in the coastal waters of southern California were studied during mid-March, 1986. Calanus pacificus exhibited vertical migration, but Acartia spp. and Paracalanus spp. did not. All species had a diel feeding rhythm, whether or not they migrated; grazing activity, measured by the gut fluorescence method, increased at night. Model parameters are temperature, particle doubling rate, particle size-frequency distribution, zooplankton …
Deep Zonal Currents In The Central Equatorial Pacific, Eric Firing
Deep Zonal Currents In The Central Equatorial Pacific, Eric Firing
Journal of Marine Research
A complex system of deep zonal currents in the central equatorial Pacific persisted during 16 months of current measurements spanning the 1982–1983 EI Niño episode. At least three extra equatorialcurrents appear to be permanent: the north and south intermediate countercurrents, with eastward velocity cores at 600 m depth, located 1.5–2.0° from the equator; and the south equatorial intermediate current, with a westward core at 900 m depth three or more degrees south of the equator. On the equator, the deep jets were nearly stationary during the period of these measurements. Comparison with earlier measurements shows that over longer periods the …
Relative Mobility Of Radioactive Trace Elements Across The Sediment-Water Interface In The Merl Model Ecosystems Of Narragansett Bay, Peter H. Santschi, Michael Amdurer, Dennis Adler, Patricia O'Hara, Yuan-Hui Li, Peter Doering
Relative Mobility Of Radioactive Trace Elements Across The Sediment-Water Interface In The Merl Model Ecosystems Of Narragansett Bay, Peter H. Santschi, Michael Amdurer, Dennis Adler, Patricia O'Hara, Yuan-Hui Li, Peter Doering
Journal of Marine Research
The "mobilities" of radioactive trace elements across the water sediment boundary of a coastal marine ecosystem were investigated. The studies carried out included chemical speciation experiments ofthe solution and solid phases, as well as verification experiments in controlled model ecosystems ("MERL" tanks). The latter included backdiffusion experiments under oxic and anoxic conditions and experiments with artificially increased sediment resuspension rates. These studies have produced seven general conclusions: (1) The backdiffusion of Cs, Mn, Co, and Zn radiotracers across the sediment-water interface into oxic waters and of Mn and Co radiotracers into anoxic waters was predicted from laboratory experiments. (2) The …
Bomb Radiocarbon In The Pacific: Annual And Seasonal Timescale Variations, Ellen R. M. Druffel
Bomb Radiocarbon In The Pacific: Annual And Seasonal Timescale Variations, Ellen R. M. Druffel
Journal of Marine Research
Banded corals are used as proxy recorders of bomb radiocarbon in the surface of the Pacific Ocean. Bomb radiocarbon levels appeared to still be rising in the tropical Pacific by 1982, in contrast to temperate locations that peaked in the early 1970's. This is representative of the geostrophic transport of bomb-laden waters from higher latitudes toward the equator. The seasonal radiocarbon signal at Canton Island (3S, 172W) during the early 1970's was twice the amplitude of that at Fanning Island (4N, 159W), and the radiocarbon minima at these locations were offset by several months. The phase lag is caused primarily …
Bottom Waters Of The Gulf Of Maine, 1978-1983, David G. Mountain, Paul F. Jessen
Bottom Waters Of The Gulf Of Maine, 1978-1983, David G. Mountain, Paul F. Jessen
Journal of Marine Research
The properties of the bottom waters (>100 m) of the Gulf of Maine are described using hydrographic data from 26 surveys between May 1978 and December 1983. The average temperature and salinity of the bottom water are presented from the different surveys for four regions of the Gulf—Wilkinson, Jordan, and Georges Basins and the Northeast Channel. The spatial variability across the Gulf was larger than the temporal variability in any region. The bottom water originates from Slope Water that enters the Gulf through the Northeast Channel. It is modified within the Gulf by vertical mixing with the near-surface waters …
Observations Of Fronts In The North Sea, H. M. Van Aken, G. J. F. Van Heijst, L. R. M. Maas
Observations Of Fronts In The North Sea, H. M. Van Aken, G. J. F. Van Heijst, L. R. M. Maas
Journal of Marine Research
The persistent presence of a cold bottom layer and associated bottom fronts was observed in the stratified central North Sea during an observational program in 1981 and 1982. Moored instruments, capturing a snap-shot of such a front while it was advected past these moorings, revealed the simultaneous presence of a well-defined frontal jet with velocities up to 15 cm s−1. The Coriolis force acting on this jet appeared to be in geostrophic balance with the locally intense pressure gradient forces. Hydrographic surveys revealed the presence of both small-scale and large-scale baroclinic waves on this front, the latter reaching …
Spatial And Temporal Variability Of Cadmium In Gulf Stream Warm-Core Rings And Associated Waters, Carole M. Sakamoto-Arnold, Alfred K. Hanson Jr., Douglas L. Huizenga, Dana R. Kester
Spatial And Temporal Variability Of Cadmium In Gulf Stream Warm-Core Rings And Associated Waters, Carole M. Sakamoto-Arnold, Alfred K. Hanson Jr., Douglas L. Huizenga, Dana R. Kester
Journal of Marine Research
Seawater samples were collected and analyzed for cadmium during four cruises studying Gulf Stream warm-core rings and associated waters. Warm-core ring (WCR) 82-B was sampled in April (approximately two months after formation), in June (after seasonal stratification), and in August (during its interaction with the Gulf Stream). The September–October cruise studied closure and separation of a meander that formed ring 82-H. The depth of the cadmium maximum varied with the depth of the main thermocline; the maximum occurred at a potential temperature of 7.8 ± 0.5°C and sigma-theta 27.4 ± 0.05 in the Slope Water, Gulf Stream, and Sargasso Sea …
Stoichiometry Of C, N, P, And Si Fluxes In A Temperate-Climate Embayment, S. V. Smith, W. J. Wiebe, J. T. Hollibaugh, S. J. Dollar, S. W. Hager, B. E. Cole, G. W. Tribble, P. A. Wheeler
Stoichiometry Of C, N, P, And Si Fluxes In A Temperate-Climate Embayment, S. V. Smith, W. J. Wiebe, J. T. Hollibaugh, S. J. Dollar, S. W. Hager, B. E. Cole, G. W. Tribble, P. A. Wheeler
Journal of Marine Research
Dissolved C, N, P, and Si budgets for Tomales Bay, California, have been used to solve simultaneous stoichiometric equations which describe a plausible material balance for net organic matter reactions in the bay. Dissolved Si and P were both exported hydrographically. Dissolved C and fixed N were imported hydrographically. If we assume that C, N, P, and Si were supplied to the bay as organic detritus and remineralized at a rate required to balance dissolved Si and P exports, we can calculate reasonable rates of denitrification and CO2 gas evasion across the air-water interface. The system is thus interpreted …
The Relationship Of Upwelling To Mussel Production In The Rias On The Western Coast Of Spain, J. O. Blanton, K. R. Tenore, F. Castillejo, L. P. Atkinson, F. B. Schwing, A. Lavin
The Relationship Of Upwelling To Mussel Production In The Rias On The Western Coast Of Spain, J. O. Blanton, K. R. Tenore, F. Castillejo, L. P. Atkinson, F. B. Schwing, A. Lavin
Journal of Marine Research
We have calculated an upwelling index for each month over a 17-year period (1969–1985) for a point off the western coast of Spain. We interpret April through September values of the index to indicate the flux of nitrate-rich water into the Spanish Rias. The index representing the 6-month upwelling series has been correlated with an index representing the conditions of mussels grown during that season on rafts in Ria de Arosa. Two seasons represent extreme upwelling conditions over the 17-year sampling period: 1977 when the upwelling index was the highest, and 1983 when it was the lowest. A comparison of …
What Controls The Rate Of Equatorial Warm Water Mass Formation?, G. T. Csanady
What Controls The Rate Of Equatorial Warm Water Mass Formation?, G. T. Csanady
Journal of Marine Research
Equatorial warm water formation is one important factor in the mass balance of Tropical Surface Water (TSW) in the Atlantic Ocean; another is drainage by the North Brazilian Coastal Current (NBCC). Both are affected by the depth of the TSW layer at the western boundary: deepening of this layer increases the transport of the NBCC and reduces warm water mass formation by shortening the eastern upwelling zone. Strengthening westward wind-stress steepens the thermocline in the western sector of the equatorial band, enhances upwelling in the eastern sector, affecting mass balance on both counts. Recirculation of TSW via a loop containing …
The Fate Of Organic Carbon And Nitrogen In Experimental Marine Sediment Systems: Influence Of Bioturbation And Anoxia, E. Kristensen, T. H. Blackburn
The Fate Of Organic Carbon And Nitrogen In Experimental Marine Sediment Systems: Influence Of Bioturbation And Anoxia, E. Kristensen, T. H. Blackburn
Journal of Marine Research
The decay rate of particulate organic carbon (POC) and nitrogen (PON) was followed during 94 days in three homogenized sediment microcosms: 1. With a natural density of the polychaete Nereis virens (NOx-cores); 2. Defaunated, with an aerobic water phase (Ox-cores); and 3. Defaunated, with an anaerobic water phase (An-cores). In all cores there was a marked preferential mineralization of PON compared to POC. The presence of Nereis increased the net decomposition of POC and PON 2.6 and 1.6 times relative to Ox-cores. Ventilation of burrow structures by the worms increased the flux of O2, TCO2 and DIN …
Stirring And Mixing Of Thermohaline Anomalies, A. Colin De Verdiere, J. G. Harvey, M. Arhan
Stirring And Mixing Of Thermohaline Anomalies, A. Colin De Verdiere, J. G. Harvey, M. Arhan
Journal of Marine Research
Data from the Tourbillon Experiment in the eastern North Atlantic indicate clearly the stirring of waters with contrasting thermohaline properties by a mesoscale eddy, and the ensuing mixture which occurred. The observed features are discussed in relation to a mixing scenario which considers the salinity distribution in the eastern N. Atlantic associated with the Mediterranean Water (MW) outflow through the Straits of Gibraltar to provide a large-scale context. A mesoscale eddy near the boundary of this water mass advected and deformed a blob of MW, sharpening thermohaline fronts so that double diffusive frontal intrusions developed. Double diffusion processes are invoked …
Vertical Patterns In 15n Natural Abundance In Pon From The Surface Waters Of Warm-Core Rings, Mark A. Altabet, James J. Mccarthy
Vertical Patterns In 15n Natural Abundance In Pon From The Surface Waters Of Warm-Core Rings, Mark A. Altabet, James J. Mccarthy
Journal of Marine Research
The natural abundance of 15N in PON from the upper 200 m of 4 warm-core rings and the Sargasso Sea was measured. Minima in the δ15N of PON often occurred near the depth at which NO3− was first detectable. Frequently, maxima in PON concentration and minima in C/N ratio also co-occurred in this region. The average value for the δ15N of PON below the top of the nitracline was almost always greater than that above the top of the nitracline. The observed vertical pattern for the δ15N of PON is most …
The Effects Of Intra-Specific Density And Food Supply On Growth And Reproduction In An Infaunal Polychaete, Polydora Ligni Webster, Roman N. Zajac
The Effects Of Intra-Specific Density And Food Supply On Growth And Reproduction In An Infaunal Polychaete, Polydora Ligni Webster, Roman N. Zajac
Journal of Marine Research
In two laboratory experiments decreasing food supply and increasing intra-specific density generally had negative effects on growth and reproduction in the spionid polychaete Polydora ligni. These included longer maturation times at smaller worm size, longer times to deposition of the first brood of eggs and inter-brood period, and decreases in the number of gametogenic segments, egg capsules and fecundity. The number of eggs deposited per capsule was not affected by the treatments. Analysis of field data indicated a significant negative correlation between intra-specific density and fecundity, suggesting that the laboratory results reflect field conditions. Populations of opportunistic infauna, like Polydora …
On The Role Of Topography In The Ocean Circulation, Paola Cessi, Joseph Pedlosky
On The Role Of Topography In The Ocean Circulation, Paola Cessi, Joseph Pedlosky
Journal of Marine Research
The ideas developed by Rhines and Young (1982a,b) are used to analyze the effect of topography in simple baroclinic models. The presence of longitude-dependent topography induces strong internal jets with transports of the same magnitude as the interior flow. It is shown that the existence of these features is independent of the forcing structure at the top of the model ocean, of the topography form and of the forcing in subsurface layers as long as the latter is small. Some examples are given both for forcings which, in the absence of topography, would give circulations closed in the interior and …
A Model Study Of The Seasonal Cycle Of The Arabian Sea Surface Temperature, Satish R. Shetye
A Model Study Of The Seasonal Cycle Of The Arabian Sea Surface Temperature, Satish R. Shetye
Journal of Marine Research
The Annual variation of the SST along a zonal strip from the coast of Somalia to the southwest coast of India was simulated using available data (monthly-mean heat and momentum fluxes across the air-sea interface, surface advective field, etc.) as input to a Kraus-Turner mixed-layer model. Three cases were examined. In the first, influence of surface fluxes alone was considered. The second included the effects of surface fluxes and vertical advection. Then, effect of horizontal advection was added.The model forced with the surface heat and momentum fluxes alone simulated reasonably well the SST variability throughout the year except during the …
Nekton Falls, Low-Intensity Disturbance And Community Structure Of Infaunal Benthos In The Deep Sea, Craig R. Smith
Nekton Falls, Low-Intensity Disturbance And Community Structure Of Infaunal Benthos In The Deep Sea, Craig R. Smith
Journal of Marine Research
A simulation of natural disturbance at the bathyal seafloor evoked rapid response from dominant infaunal species, for the first time providing experimental evidence that similar disturbances structure normal deep-sea communities. Parcels of dead fish (1–40 kg) were placed on the seafloor at a depth of 1310 m in the Santa Catalina Basin and monitored with Alvin and free-vehicle cameras for up to 8 wk. Dense aggregations of fish and ophiuroids were rapidly attracted to the baitfalls; in the process of consuming the bait, these megafaunal scavengers disrupted sediment surface structures and resuspended substantial amounts of sediment. The predominant macrofaunal effect …
A Simplified Linear Ocean Circulation Theory, Rick Salmon
A Simplified Linear Ocean Circulation Theory, Rick Salmon
Journal of Marine Research
The linear theory of the wind- and thermally-driven ocean circulation simplifies considerably if the traditional Laplacian viscosity and thermal diffusivity are replaced by a linear-decay friction and heat diffusion. Solutions of the simplified equations display all the physically important features of the standard model.
Sediment Trap Biases In Turbulent Flows: Results From A Laboratory Flume Study, Cheryl Ann Butman
Sediment Trap Biases In Turbulent Flows: Results From A Laboratory Flume Study, Cheryl Ann Butman
Journal of Marine Research
Several cylindrical and noncylindrical sediment trap designs were tested in a recirculating steady-flow flume. The laboratory study was conducted to achieve dynamic- and geometric-similarity to conditions in a specific field environment where traps eventually would be deployed. Relative (to a "standard" trap design) particle collection efficiencies of the traps were quantified in ∼10 cm/sec turbulent flows that were continuously seeded with particles having fall velocities of about 10−2 to 10−1 cm/sec (the upper range of silt-sized quartz sediments). The nature of flow through the trap mouths was qualitatively described using dye.The following trap biases were demonstrated in the …
Observations Of The Horizontal Separation Of The Salinity Core And The Current Core In The Atlantic Equatorial Undercurrent, Eberhard Fahrbach, Jens Meincke, Alexander Sy
Observations Of The Horizontal Separation Of The Salinity Core And The Current Core In The Atlantic Equatorial Undercurrent, Eberhard Fahrbach, Jens Meincke, Alexander Sy
Journal of Marine Research
From January to June 1979 the R. V. Meteor surveyed the central equatorial Atlantic on a line along 22W from 2S to 3N. By means of CTD and horizontal deflection measurements of a towed undulating instrument, the "Delphin," a time series of the horizontal location of the velocity core of the Equatorial Undercurrent and its related salinity maximum could be obtained. The time interval of observations between the 11 "Delphin" sections ranged from 5 to 30 days. In the mean the salinity maximum is located 30 km south of the velocity maximum. The separation distance depends on the meridional location …
Spacial And Temporal Variations Of Water Characteristics In The Japan Sea Bottom Layer, Toshitaka Gomo, Yoshiyuki Nozaki, Hitoshi Sakai, Toshisuke Nakai, Hiroyuki Tsubota
Spacial And Temporal Variations Of Water Characteristics In The Japan Sea Bottom Layer, Toshitaka Gomo, Yoshiyuki Nozaki, Hitoshi Sakai, Toshisuke Nakai, Hiroyuki Tsubota
Journal of Marine Research
The Japan Sea is an almost landlocked marginal sea. We measured profiles of CTD potential temperature at 9 stations in the southeastern Japan Sea to clarify the characteristics of the abyssal circulation in the Sea. It was shown that the results were closely correlated with the topography of the Japan Sea which is characterized by a rise in the center of the Sea (Yamato Rise) and three basins (Japan, Yamato and Tsushima Basins) around the Yamato Rise.At each station in the Basins (6 stations), we observed "the bottom layer," a layer of constant potential temperature (within ±0.0005°C) below 2,000–2,500 m …
Grazer Control Of The Fine-Scale Distribution Of Phytoplankton In Warm-Core Gulf Stream Rings, M. R. Roman, C. S. Yentsch, A. L. Gauzens, D. A. Phinney
Grazer Control Of The Fine-Scale Distribution Of Phytoplankton In Warm-Core Gulf Stream Rings, M. R. Roman, C. S. Yentsch, A. L. Gauzens, D. A. Phinney
Journal of Marine Research
We measured in situ rates of primary production, zooplankton grazing and the fine-scale distribution of zooplankton abundance, along with continuous observations of salinity, temperature and fluorescence in vertical profiles of two warm-core Gulf Stream rings and a station in the northern Sargasso Sea. A subsurface chlorophyll maximum was located within the pycnocline at all nineteen of the pump stations. In the majority of pump profiles, subsurface chlorophyll maxima coincided with maxima in particulate organic carbon and ATP. However, neither zooplankton biomass or numerical abundance were related to chlorophyll concentrations. Maxima in zooplankton biomass and grazing generally occurred at depths of …
The Effects Of The Filter-Feeding Clam Mercenaria Mercenaria On Carbon Cycling In Experimental Marine Mesocosms, Peter H. Doering, Candace A. Oviatt, John R. Kelly
The Effects Of The Filter-Feeding Clam Mercenaria Mercenaria On Carbon Cycling In Experimental Marine Mesocosms, Peter H. Doering, Candace A. Oviatt, John R. Kelly
Journal of Marine Research
The metabolism and the fate of 14C labelled carbon was examined in 4 outdoor mesocosm (13 m3) tanks containing both benthic and pelagic compartments. Mesocosms with (16/m2) and without the clam, Mercenaria mercenaria were compared. System production, net and gross sedimentation of particulate carbon and benthic remineralization of dissolved inorganic nitrogen were all greater in mesocosms with clams. A filtration rate model, dependent on clam size and temperature, explained between 74–114% of the increased gross sedimentation in clam tanks relative to controls.The higher production in the clam tanks was at least in part due to …
Thermohaline Forcing Of Eastern Boundary Currents: With Application To The Circulation Off The West Coast Of Australia, Julian P. Mccreary Jr., Satish R. Shetye, Pijush K. Kundu
Thermohaline Forcing Of Eastern Boundary Currents: With Application To The Circulation Off The West Coast Of Australia, Julian P. Mccreary Jr., Satish R. Shetye, Pijush K. Kundu
Journal of Marine Research
The linear, viscid, continuously stratified model of McCreary (1981) is extended to allow for thermohaline forcing by a specified, longitudinally independent, surface density field ρs. When the ocean is unbounded and ρs is steady, the density field is altered throughout the water column by vertical diffusion. If ρs increases poleward, the resulting pressure field slopes downward toward the pole in the upper water column, and there is an associated eastward geostrophic current. This interior current forces downwelling at an eastern ocean boundary, and generates a poleward surface coastal current and an equatorward undercurrent. For realistic choices …
Effects Of California El Niño 1982-1984 On The Northern Anchovy, Paul C. Fiedler, Richard D. Methot, Roger P. Hewitt
Effects Of California El Niño 1982-1984 On The Northern Anchovy, Paul C. Fiedler, Richard D. Methot, Roger P. Hewitt
Journal of Marine Research
El Niño caused physical and biological changes in the northern anchovy habitat off southern California. Anomalous sea surface temperatures, surface currents, mixed layer depths, and plankton biomass levels began to appear in late 1982 and persisted into 1984. Growth of juvenile and adult anchovy slowed during El Niño, probably due to reduced availability of zooplankton prey. A decrease in size-at-age in early 1983, with a recovery in late 1984, can be explained by movements of the stock and the latitudinal cline in size-at-age. Spawning range expanded in 1983 due to shifts in sea surface temperature boundaries. Early larval mortality was …
Distribution Of Dissolved Co2 In The Red Sea And Correlations With Other Geochemical Tracers, A. Papaud, A. Poisson
Distribution Of Dissolved Co2 In The Red Sea And Correlations With Other Geochemical Tracers, A. Papaud, A. Poisson
Journal of Marine Research
The concentration of dissolved inorganic carbon in the Red Sea was studied using the following model:TCO2 = TCO2o + ΔTCO2bio + ΔTCO2ant. The conservative part TCO2o was correlated with the potential temperature T. The term ΔTCO2bio represents the exchanges with the marine biosphere and was expressed in the form aΔX + bΔY with X = O2, NO3, PO4 and Y = TA, Ca. The term ΔTCO2ant represents the excess of TCO2 due to the penetration of human …