Now showing items 1-10 of 6028
Stability of a coastal upwelling front over topography
(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1987-10)
A two-layer shallow water equation model is used to investigate the linear stability of a coastal upwelling front. The model features a surface front near a coastal boundary and bottom topography which is an arbitrary ...
Shoaling of nonlinear internal waves in Massachusetts Bay
(American Geophysical Union, 2008-08-19)
The shoaling of the nonlinear internal tide in Massachusetts Bay is studied with a fully nonlinear and nonhydrostatic model. The results are compared with current and temperature observations obtained during the August ...
Asymmetric tidal mixing due to the horizontal density gradient
(American Meteorological Society, 2008-02)
Stratification and turbulent mixing exhibit a flood–ebb tidal asymmetry in estuaries and continental shelf regions affected by horizontal density gradients. The authors use a large-eddy simulation (LES) model to investigate ...
Calibration and application of B/Ca, Cd/Ca, and δ11B in Neogloboquadrina pachyderma (sinistral) to constrain CO2 uptake in the subpolar North Atlantic during the last deglaciation
(John Wiley & Sons, 2013-05-30)
The North Atlantic and Norwegian Sea are prominent sinks of atmospheric CO2 today, but their roles in the past remain poorly constrained. In this study, we attempt to use B/Ca and δ11B ratios in the planktonic foraminifera ...
Geochemical tracers of extraterrestrial matter in sediments
Every year, tens of thousands of tons of cosmic dust accumulate at the Earth’s surface, representing a continuation of the accretion process that started 4.57 billion years ago. The unique geochemical properties of these ...
Sulfide geochronology along the Endeavour Segment of the Juan de Fuca Ridge
(John Wiley & Sons, 2013-07-08)
Forty-nine hydrothermal sulfide-sulfate rock samples from the Endeavour Segment of the Juan de Fuca Ridge, northeastern Pacific Ocean, were dated by measuring the decay of 226Ra (half-life of 1600 years) in hydrothermal ...
Geochemical characterization of endmember mantle components
(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2005-06)
This thesis uses trace elements and radiogenic isotope tracers to define elemental abundances in reservoirs of the Earth's mantle, including EM2 (the Enriched Mantle 2), as seen in the Samoan hotspot track, and DMM (the ...
Interaction of high frequency internal waves and the boundary layer on the continental shelf
(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1984-08)
Intermittent, shoreward propagating packets of high frequency first mode internal waves are common on the continental shelf when the water column is stratified and may induce large fluctuations in near bottom velocity. ...
Short-term dispersal of Fukushima-derived radionuclides off Japan : modeling efforts and model-data intercomparison
(Copernicus Publications on behalf of the European Geosciences Union, 2013-07-24)
The Great East Japan Earthquake and tsunami that caused a loss of power at the Fukushima nuclear power plants (FNPP) resulted in emission of radioactive isotopes into the atmosphere and the ocean. In June of 2011, an ...
Sound Cut, Record Number 67027002
(Woods Hole Oceanographic Institution, 1992-04-30)
Recording of 3 Ribbon seals. Good downward sweeping pulse, in-air growls.