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A study of light attenuation in Monterey Bay, CaliforniaCrews, Thomas Walter. January 1971 (has links)
Thesis (M.S.)--Naval Postgraduate School, 1971. / Includes bibliographical references (leaves 141-142).
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The comparison of oceanic parameters with light attenuation in the waters between San Francisco Bay and Monterey Bay, CaliforniaBaker, Robert Ellsworth. January 1970 (has links)
Thesis (M.S.)--Naval Postgraduate School, 1970. / Includes bibliographical references (p. 196-197).
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Production of biologically-refractory dissolved organic carbon by natural seawater microbial populationsBrophy, Jennifer Elaine 09 October 1986 (has links)
Small amounts of carbon from glucose and leucine added at natural
concentrations to seawater were biologically transformed to higher
molecular weight (MW) dissolved materials which persisted through six
months of incubation. These materials were resistant to biological
utilization: only 1 to 17% of the higher MW carbon was respired when
re-incubated with seawater microbial populations. Over the same time
span, 40 to 75% of the monomers were respired. In situ transformations
of biologically-available carbon may be important mechanisms for
the production of refractory dissolved organic carbon in the oceans. / Graduation date: 1987
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Magnesium sulfate ion association in seawaterGates, Richard Fredrick 04 March 1969 (has links)
Graduation date: 1969
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Measurement of the apparent dissociation constants of carbonic acid in seawater at atmospheric pressureMehrbach, Carl 09 March 1973 (has links)
The apparent dissociation constants of carbonic acid were
determined as functions of temperature and salinity in seawater
at atmospheric pressure.
There is fair agreement between my values of K'₁ and those
of Buch et al. (1932), Lyman (1956), and Hansson (1971). My values,
on the average, are 6.7% lower than Buch et al.'s (1932), 4.6%
smaller than Lyman's (1956), and 4.0% higher than Hansson's (1972).
My values for K'₂ are smaller than those reported by other
workers. They differ by 3.4% from Hansson's (1972) values, and
26% from Buch's (1938). Lyman's (1956) values are larger than
mine by 3.2% at temperatures of 25°C and below, and greater by
13.4% at 35°C. / Graduation date: 1973
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An investigation of high resolution dissolved oxygen profiles off the Oregon coastJeter, Hewitt Webb 09 August 1972 (has links)
Dissolved oxygen profiles made with an in situ polarographic
device reveal structure in the form of inversions and gradient
changes in the 100-600 meter depth zone off Oregon. Inversions
10-70 meters thick are traced over distances of 40 miles in some
cases and are bracketed by a distance of 8 miles in others. The
horizontal extent of these features agrees with observations of
similarly-sized temperature and salinity structure reported by
Stommel and Federov (1967) and by Hamon (1967).
Oxygen maxima are correlated with changes in the vertical
temperature gradient. Corresponding salinity minima are sometimes
found. This relationship between properties is consistent
with the formation of oxygen structure by a horizontal mixing process
off Oregon. The existence of significant horizontal gradients in
properties over distances of tens of miles favors the interleaving
of dissimilar waters along density surfaces. A quantitative example
of the horizontal mixing process yields temperature gradient changes
near oxygen maxima similar to those observed.
The in situ production of oxygen structure by layers of oxygen-consuming
materials is considered unlikely in the size range studied.
A transient state vertical model indicates that the consumption layers
required for this mechanism are more intense than is consistent
with recent biomass measurements.
Diffusion calculations are used to model the decay of oxygen
maxima. Calculated lifetimes range from 2.6 days for features 15
meters thick to 48.1 days for features 60 meters thick. These are
considered estimates of the time scales associated with the stratification
process. / Graduation date: 1973
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Bicarbonate and carbonate ion association with sodium, magnesium and calcium at 25°C and 0.72 ionic strengthHawley, John Edward 29 March 1973 (has links)
Graduation date: 1973
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Recycling of iron and conditioning of sea water by a marine dinoflagellateFrey, Bruce E. 07 March 1974 (has links)
Graduation date: 1974
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Phosphate equilibria in seawater and interstitial watersAtlas, Elliot Leonard 05 June 1975 (has links)
Graduation date: 1976
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Processes affecting the oceanic distribution of carbon dioxideCulberson, Charles Henry 03 May 1972 (has links)
The stoichiometric model of organic decomposition in seawater
(Redfield, Ketchum, and Richards, 1963) was used to describe the
oceanic distribution of total carbon dioxide. It was assumed that the
concentration of total carbon dioxide was the sum of three terms:
(1) the initial concentration of carbon dioxide, (2) the increase in
carbon dioxide due to the oxidation of organic matter, and (3) the
increase in carbon dioxide due to the solution of calcium carbonate.
The initial concentration of carbon dioxide was calculated by assuming
that surface seawater is in equilibrium with atmospheric carbon
dioxide. This assumption allowed the temperature dependence of the
initial concentration to be estimated. The vertical and horizontal
distribution of total carbon dioxide in the Pacific, Indian, and South
Atlantic Oceans was shown to conform to this model. In particular,
values of the oxidative ratio (ΔC/ΔO) calculated from field data agreed
with the theoretical value of Redfield et al. (1963).
The model for the distribution of total carbon dioxide was applied
to the vertical distribution of carbon-13 at the North Pacific (1969)
GEOSECS intercalibration station (Kroopnick, Deuser, and Craig,
1970). Values of δC¹³ calculated from the stoichiometric model
agreed to within ± 0.3‰ with the measured values at this station.
Near-bottom chemical measurements were made on three
cruises: YALOC-69 to the Eastern Tropical Pacific, Y6908F off the
Oregon Coast, and TT-46 to the Caribbean Sea and North Atlantic.
The emphasis during these cruises was on chemical gradients in
deep water, and 39 stations were occupied at depths greater than
2000 m. Salinity, oxygen, pH, alkalinity, silicate, phosphate,
nitrate, and nitrite were measured at heights from 0.5 to 300 m
above the bottom. No measurable salinity, oxygen, silicate, phosphate,
nitrate, or nitrite gradients were observed. A statistically
significant near-bottom increase in pH and alkalinity was found.
However, the increase was small and could have resulted from
undetected analytical and/or sampling errors. / Graduation date: 1972
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