Browsing Oceanography by Submit Date
Now showing items 1-20 of 152
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Evolution of orogenic wedges and continental plateaux: insights from crustal thermal-mechanical models overlying subducting mantle lithosphere
(2003-04)The links between an early phase of orogenesis, when orogens are commonly wedge shaped, and a later phase, with a plateau geometry, are investigated using coupled thermal-mechanical models with uniform velocity subduction ... -
Untitled
(International Union of Geodesy and Geophysics (IUGG), Vancouver, BC, 1979)No abstract available. -
Last gasp of the Grenville Orogeny; thermochronology of the Grenville Front tectonic zone near Killarney, Ontario
(University of Chicago Press, Chicago, IL, 1993-09)No abstract available. -
Mean mixed depth of sediments; the wherefore and the why
(American Society of Limnology and Oceanography, Ann Arbor, MI, 1998-05)No abstract available. -
Early diagenesis in a marine sapropel, Mangrove Lake, Bermuda
(American Society of Limnology and Oceanography, Ann Arbor, MI, 1992-12)No abstract available. -
Rate of growth of isolated bubbles in sediments with a diagenetic source of methane
(American Society of Limnology and Oceanography, Ann Arbor, MI, 2001-05)Observation of bubbles in estuarine and coastal sediments indicates that bubbles at or below 10 cm depth grow on seasonal time scales (May-October). In order to determine the controls on this growth rate, we have constructed ... -
What controls the mixed-layer depth in deep-sea sediments? The importance of particulate organic carbon flux
(2004-03)No abstract available. -
Quantifying particle dispersal in aquatic sediments at short time scales: model selection
(2008)In a pulse-tracer experiment, a layer of tracer particles is added to the sediment-water interface, and the down-mixing of these particles is followed over a short time scale. Here, we compared different models (biodiffusion, ... -
Bioturbation and porosity gradients
(1998-01)Ubiquitous porosity gradients have a potentially important effect on the mixing of particle-bound tracers, such as Pb-210. Mass-depth coordinates cannot be used to deal with these effects if values of the traditional mixing ... -
A semi-analytical model of the influence of phytoplankton community structure on the relationship between light attenuation and ocean color
(1999-01)A model was developed to examine the influence of phytoplankton community structure on the relationship between diffuse attenuation and ratios of upwelling radiance. Shifts in phytoplankton communities were represented by ... -
Assessment of the relationships between dominant cell size in natural phytoplankton communities and the spectral shape of the absorption coefficient
(2002-03)Size-fractionated chlorophyll concentration and phytoplankton absorption spectra were compared for a wide variety of natural communities. We found that, in general, when phytoplankton abundance increases, larger size-classes ... -
The spectral effects of clouds on solar irradiance
(1998-12)Knowledge of the spectral attenuation associated with clouds is important for accurate estimates of natural irradiance at the Earth's surface. We compare spectral measurements of visible downwelling irradiance, under varying ... -
Photosynthetic characteristics and estimated growth rates indicate grazing is the proximate control of primary production in the Equatorial Pacific
(1992)Macronutrients persist in the surface layer of the equatorial Pacific Ocean because the production of phytoplankton is limited. Measurements of photosynthesis as a function of irradiance (P-I) provide information on the ... -
Hypotheses to Explain High-Nutrient Conditions in the Open Sea
(1991-12)Oceanic high-nutrient, low-chlorophyll waters are characterized principally by the persistence of major nutrients at the sea surface. This condition indicates control of autotrophic production by something other than NO3 ... -
Optical detection and assessment of algal blooms
(1997-07)Concerns about harmful algal blooms (HABs) have grown in recent years. There is a pressing need for robust, quantitative, and cost-effective methods to detect and characterize algal blooms. Critical applications of these ... -
Biological processes and optical measurements near the sea surface: Some issues relevant to remote sensing
(1995)There is good evidence that bio-optical relationships are altered near the surface: (1) the fluorescence yield from chlorophyll declines, leading to bias in the estimation of pigment from fluorometry; (2) the modeled ... -
Status of the iron hypothesis after the open-ocean enrichment experiment
(1995)No abstract available. -
Distributions and Photosynthesis of Phototrophs in Sea-Surface Films
(1989-07)No abstract available. -
Predicting and verifying the intended and unintended consequences of large-scale ocean iron fertilization
(2008)Ocean iron fertilization (OIF) is being considered as a strategy for mitigating rising atmospheric CO2 concentrations. One model for implementation is the sale of carbon offsets. Modeling studies predict that OIF has the ...