Unusual plasmas consisting of periodic layers of
spatially separated electrons and holes can be fabricated
by molecular beam epitaxial techniques. These materials
are referred to as type II superlattices but also include
the class of doping superlattices called n-i-p-i lattices.
Layer thickness can be controlled to the order of 10...
A versatile computational technique for improved time domain modeling of electromagnetic radiative systems is demonstrated. Two computational methods are combined: the finite-difference time domain (FDTD) method, a full-wave electromagnetic field solver, and the Kirchhoff surface integral formulation, a spatial transformation technique. The combined FDTD/Kirchhoff technique is shown to increase accuracy...
The Arctic Ocean is an important link in the global hydrological cycle, storing freshwater and releasing it to the North Atlantic Ocean in a variable fashion as pack ice and freshened seawater. An unknown fraction of this return flow passes through Nares Strait between northern Canada and Greenland. Surveys of...
Holocene turbidites from turbidite channel systems along the active tectonic continental
margins of the Cascadia Subduction Zone (offshore Vancouver Island to Mendocino Triple
Junction) and the northern San Andreas Transform Fault (the Triple Junction to San Francisco
Bay), have been analyzed for sedimentologic features related to their seismic origin. Centimeter...
This work is a compilation of problems that deal with multiscale analysis of transport phenomena in environmental systems. A common feature among the problems studied here is the presence of non-negligible microscale structure in various forms. Each problem is approached from the perspective that a macroscopic observable encodes aspects of...
In order to evaluate the shallow stratigraphy along the southern Cascadia abyssal margin and northern California abyssal plain, CHIRP subbottom profiles capable of imaging individual turbidite beds in the upper tens of meters of the subsurface were collected. Reflectors imaged with the 3.5 kHz CHIRP subbottom data represent turbidite beds...
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4.2 San Andreas Seismicity .....................................................................
5.0
Here we investigate sedimentary records from four small inland lakes located in the southern Cascadia forearc region for evidence of earthquakes. Three of these lakes are in the Klamath Mountains near the Oregon–California border, and one is in the central Oregon Coast range. The sedimentary sequences recovered from these lakes...