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Are similar worms different? A comparative tracer study on bioturbation in the three sibling species Marenzelleria arctia, M. viridis, and M. neglecta from the Baltic Sea
worms different bioturbation
2014/4/2
The invasive spionid polychaetes of the genus Marenzelleria spp., consisting of the three sibling species M.
neglecta, M. viridis, and M. arctia, has been found in the Baltic Sea since the 1980s. Bec...
The spectral slope coefficient of chromophoric dissolved organic matter (S275–295) as a tracer of terrigenous dissolved organic carbon in river-influenced ocean margins
The spectral slope coefficient chromophoric dissolved organic matter S275–295 tracer of terrigenous dissolved organic carbon river-influenced ocean margins
2014/4/4
The present study demonstrates that the spectral slope coefficient of chromophoric dissolved organic matter (CDOM) between 275 nm and 295 nm (S275–295) can be used as a tracer of the percent terrigeno...
The spectral slope coefficient of chromophoric dissolved organic matter (S275–295)asa tracer of terrigenous dissolved organic carbon in river-influenced ocean margins
spectral slope coefficient chromophoric dissolved organic matter terrigenous dissolved organic carbon river-influenced ocean margins
2014/4/3
The present study demonstrates that the spectral slope coefficient of chromophoric dissolved organic matter(CDOM) between 275 nm and 295 nm (S275–295) can be used as a tracer of the percent terrigenou...
Nutritional importance of benthic bacteria for deep-sea nematodes from the Arctic ice margin: Results of an isotope tracer experiment
Nutritional importance benthic bacteria deep-sea nematodes the Arctic ice margin Results an isotope
2014/4/16
A stable isotope (13C)-labeling experiment was performed to quantify the importance of bacterial carbon as a food source for an Arctic deep-sea nematode community. Bacterial functional groups were iso...
A simple advective-diffusive system with uniform, horizontal flow in a channel and fixed boundary concentrations of two tracers is analyzed for the tracer concentrations in the interior. The deduced c...
Determining flow fields and mixing rates from chemical tracer distributions is a challenging and important oceanographic problem. Thus the conclusion, that solutions obtained for underdetermined syste...
Baroclinic Flow and Transient-Tracer Fields in the Canary–Cape Verde Basin
Baroclinic Flow Canary–Cape Verde Basin Transient-Tracer Fields
2009/1/12
Simulated transient-tracer distributions (tritium, 3H3, freons) on the isopycnal horizons σ0=26.5 and 26.8 kg m−3 are presented for the East Atlantic, 10° −40°N. Tracer transport is modele...
Solving Underdetermined Tracer Inverse Problems by Spatial Smoothing and Cross Validation
Tracer Inverse Problems Spatial Smoothing Cross Validation
2008/12/18
Tracer conservation equations may be inverted to determine the flow field and macroscopic diffusion coefficients from known tracer distributions. An underdetermined system leads to an infinite number ...
Parameterizing Eddy-Induced Tracer Transports in Ocean Circulation Models
Eddy-Induced Tracer Transports Ocean Circulation Models
2008/12/11
It is shown that the effects of mesoscale eddies on tracer transports can be parameterized in a large-scale model by additional advection and diffusion of tracers. Thus, tracers are advected by the ef...
The Influence of Eddies on Tracer Transport in the Abyssal Ocean
Tracer Transport Abyssal Ocean Influence of Eddies
2008/10/27
Tracer transport mechanisms in a deep western boundary current (DWBC) are explored using a three-layer, eddy-resolving quasigeostrophic model. The model is forced with a steady, sinusoidal wind stress...
The Dissipation of Fluctuating Tracer Variances
linear combination tracer variance two tracers
2008/10/24
codissipation, proportional to the covariance of the gradients of the two tracers, and analogous to the dissipation of tracer variance. The evolution of the variance of a composite tracer—a linear com...
The Deep Interior Downwelling, the Veronis Effect, and Mesoscale Tracer Transport Parameterizations in an OGCM
Deep Interior Downwelling Veronis Effect Mesoscale Tracer Transport Parameterizations OGCM
2008/7/23
Numerous numerical simulations of basin-scale ocean circulation display a vast interior downwelling and a companion intense western boundary layer upwelling at midlatitude below the thermocline. These...
Sensitivity of a Global Ocean General Circulation Model to Tracer Advection Schemes
Global Ocean General Circulation Model Tracer Advection Schemes
2008/7/22
Vertical diffusivity at the thermocline depths is now believed to be as small as 1 × 10−5 m2 s−1. In order to accomplish a reliable simulation of the World Ocean for the vertical diffusivi...
The Bolus Velocity in the Stochastic Theory of Ocean Turbulent Tracer Transport
Bolus Velocity Stochastic Theory Ocean Turbulent
2008/7/21
A stochastic theory of tracer transport in compressible turbulence has recently been developed and then applied to the ocean case because stratified flow in isopycnal coordinates is analogous to compr...
The Contribution of Salt Fingers to Vertical Mixing in the North Atlantic Tracer Release Experiment
Salt Fingers North Atlantic
2008/7/16
The North Atlantic Tracer Release Experiment (NATRE) was performed in an area moderately favorable to salt fingers. However, the classic finger signature of a distinct thermohaline staircase caused by...