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... eddy transfer (e.g. Houghton et al. 1987), event-scale wind mixing (Eppley and Renger 1988), vorticity induced by eddy shear (Pollard and Regier 1990), wind-stress curl, and isopycnal upwelling. Only by invoking all such mechanisms can we explain the spatial variability of sea-surface chlorophyll. T ...
... eddy transfer (e.g. Houghton et al. 1987), event-scale wind mixing (Eppley and Renger 1988), vorticity induced by eddy shear (Pollard and Regier 1990), wind-stress curl, and isopycnal upwelling. Only by invoking all such mechanisms can we explain the spatial variability of sea-surface chlorophyll. T ...
Part 3. Oceanic Carbon and Nutrient Cycling
... • Dust deposition can deliver N, significant in N-limited regions, and links oceanic NPP to distant terrestrial ecosystems; pollutive atmospheric-N from land can also have an effect on NPP down-wind from source of pollutive aerosols. ...
... • Dust deposition can deliver N, significant in N-limited regions, and links oceanic NPP to distant terrestrial ecosystems; pollutive atmospheric-N from land can also have an effect on NPP down-wind from source of pollutive aerosols. ...
Chapter 12 Foundations of Life in the Oceans
... ●● oxidation of ammonia to nitrite, ●● nitrite to nitrate, or of ●● methane to carbon dioxide and water. Note that “oxidation” does not necessarily require oxygen atoms to be present. Oxidation is the general term for a chemical reaction in which an electron is removed from a molecule that is being ...
... ●● oxidation of ammonia to nitrite, ●● nitrite to nitrate, or of ●● methane to carbon dioxide and water. Note that “oxidation” does not necessarily require oxygen atoms to be present. Oxidation is the general term for a chemical reaction in which an electron is removed from a molecule that is being ...
Year-long float trajectories in the Labrador Sea Water of the eastern
... suggesting that the meridional spreading is as great as zonal spreading for these floats. In addition, the Eurofloat dispersion increases roughly linearly in time after approximately 30 days, a signature of a diffusive process under certain conditions (Taylor, 1921). The rate of increase in the zona ...
... suggesting that the meridional spreading is as great as zonal spreading for these floats. In addition, the Eurofloat dispersion increases roughly linearly in time after approximately 30 days, a signature of a diffusive process under certain conditions (Taylor, 1921). The rate of increase in the zona ...
The Submarine Volcano Eruption off El Hierro Island: Effects on the
... The 38 kHz echogram (Fig. 3) recorded during the acoustic transect on 7 November 2011 (Fig. 2b) was dominated by two scattering layers: the DSL at around 300–700 m depth during both day and night and the MSL above 200 m during nighttime. According to catches (Table 1) those scattering layers were co ...
... The 38 kHz echogram (Fig. 3) recorded during the acoustic transect on 7 November 2011 (Fig. 2b) was dominated by two scattering layers: the DSL at around 300–700 m depth during both day and night and the MSL above 200 m during nighttime. According to catches (Table 1) those scattering layers were co ...
The effects of episodic rainfall events to the dynamics of
... marine ecosystem were estimated on hourly basis. These loads were used as input for the biological submodel describing the flow of energy through microbial components of the marine ecosystem. 3.2. The hydrodynamic submodel The simulation of the hydrodynamic regime of the gulf was obtained by separat ...
... marine ecosystem were estimated on hourly basis. These loads were used as input for the biological submodel describing the flow of energy through microbial components of the marine ecosystem. 3.2. The hydrodynamic submodel The simulation of the hydrodynamic regime of the gulf was obtained by separat ...
future application of submersibles to the study of small scale
... pumps designed to collect large volume samples at discrete depths. Although these two techniques measure primary physical and biological parameters, their temporal and spatial characteristics are so different that they cannot be used to effectively test the bio-physical interaction hypotheses. New a ...
... pumps designed to collect large volume samples at discrete depths. Although these two techniques measure primary physical and biological parameters, their temporal and spatial characteristics are so different that they cannot be used to effectively test the bio-physical interaction hypotheses. New a ...
Lecture 10: Ocean Circulation Basic Ocean Current
... wind stress if the Coriolis force varies with latitude. Henry Stommel (1948) showed that the circulation in oceanic gyres is asymmetric also because the Coriolis force varies with latitude. Walter Munk (1950) added eddy viscosity and calculated the circulation of the upper layers of the Pacific. ...
... wind stress if the Coriolis force varies with latitude. Henry Stommel (1948) showed that the circulation in oceanic gyres is asymmetric also because the Coriolis force varies with latitude. Walter Munk (1950) added eddy viscosity and calculated the circulation of the upper layers of the Pacific. ...
VERTIGO (VERtical Transport In the Global Ocean): A study of
... through the ocean’s ‘‘twilight zone’’ (defined here as depths below the euphotic zone to 1000 m). Interdisciplinary process studies were conducted at contrasting sites off Hawaii (ALOHA) and in the NW Pacific (K2) during 3-week occupations in 2004 and 2005, respectively. We examine in this overview pa ...
... through the ocean’s ‘‘twilight zone’’ (defined here as depths below the euphotic zone to 1000 m). Interdisciplinary process studies were conducted at contrasting sites off Hawaii (ALOHA) and in the NW Pacific (K2) during 3-week occupations in 2004 and 2005, respectively. We examine in this overview pa ...
Vertical nitrate fluxes in the Arctic Ocean
... of the ocean called the euphotic zone. Organic matter has a tendency to sink and thus exports essential nutrients to depth. This flux is called export production. In this way, the world ocean is partitioned into a photic, nutrient poor surface layer and the aphotic, nutrient rich deeper layers. With ...
... of the ocean called the euphotic zone. Organic matter has a tendency to sink and thus exports essential nutrients to depth. This flux is called export production. In this way, the world ocean is partitioned into a photic, nutrient poor surface layer and the aphotic, nutrient rich deeper layers. With ...
The roles of vertical mixing, solar radiation, and wind stress in a
... to the more sophisticatedgeneral circulation models (GCMs) The main challenge faced by modelers, however, is to [e.g., Philander et al., 1987], are capable of simulating the improve model physics so that important physical processes wind-driven seasonal variations of the equatorial thermo- are not m ...
... to the more sophisticatedgeneral circulation models (GCMs) The main challenge faced by modelers, however, is to [e.g., Philander et al., 1987], are capable of simulating the improve model physics so that important physical processes wind-driven seasonal variations of the equatorial thermo- are not m ...
reasssement of the photosynthetic quotient
... of the samples was cross-checked by counting a selected number of filters both with liquid scintillation counter and an end-window counter. In neither case was there any sign of a significant systematic error. The exudation of photosynthetic products can give rise to an underestimation of production ...
... of the samples was cross-checked by counting a selected number of filters both with liquid scintillation counter and an end-window counter. In neither case was there any sign of a significant systematic error. The exudation of photosynthetic products can give rise to an underestimation of production ...
Document
... Statistical analysis—The mathematical software package Mathematica (Wolfram Research, version 5.2.2) was used for statistical analysis. Analysis of variance (ANOVA) and Tukey’s post hoc test based on the Studentized range distribution of average values was used to test for significant differences be ...
... Statistical analysis—The mathematical software package Mathematica (Wolfram Research, version 5.2.2) was used for statistical analysis. Analysis of variance (ANOVA) and Tukey’s post hoc test based on the Studentized range distribution of average values was used to test for significant differences be ...
Acidification of the Coastal Ocean: Are deep waters of the... pteropods?
... missing from sediment traps and aragonite particles in the water column decrease rapidly with depth, all of which seems to provide the evidence that near bottom waters should be corrosive to aragonite shells for much of the annual cycle. This project thus finds an interesting research question that ...
... missing from sediment traps and aragonite particles in the water column decrease rapidly with depth, all of which seems to provide the evidence that near bottom waters should be corrosive to aragonite shells for much of the annual cycle. This project thus finds an interesting research question that ...
Buoyancy frequency profiles and internal semidiurnal tide turning
... below which the local buoyancy frequency N(z) becomes smaller than the wave frequency. At a turning depth, incident gravity waves reflect rather than reaching the ocean bottom as is generally assumed. Here we consider internal gravity waves at the lunar semidiurnal (M2) tidal frequency, Um i - Profi ...
... below which the local buoyancy frequency N(z) becomes smaller than the wave frequency. At a turning depth, incident gravity waves reflect rather than reaching the ocean bottom as is generally assumed. Here we consider internal gravity waves at the lunar semidiurnal (M2) tidal frequency, Um i - Profi ...