THE ROLE OF THE OCEANS in Earth systems ecology, and the effects of climate variability on the ocean and its ecosystems, can be understood only by observing, describing, and ultimately predicting the state of the ocean as a physically forced ecological and biogeochemical system. This is a daunting but exciting...
Eddy detection and tracking algorithms are applied to both satellite altimetry and a
high‐resolution (dx = 5 km) climatological model solution of the U.S. West Coast to study
the properties of surface and undercurrent eddies in the California Current System.
Eddy properties show remarkable similarity in space and time, and...
Rip currents pose a serious danger to visitors of bathing beaches; they are also an important process in surf zone circulation. Haller et al. [2014] demonstrated that shore-based X-band radar can be used to compliment in situ measurements of rip currents. However, little is known of the underlying radar imaging...
The computation of Lagrangian coherent structures typically involves post-processing of experimentally or
numerically obtained fluid velocity fields to obtain the largest finite-time Lyapunov exponent (FTLE) field.
However, this procedure can be tedious for large-scale complex flows of general interest. In this work, an
alternative approach involving computation of the FTLE...
Polycyclic aromatic hydrocarbons (PAHs) and oxygen-substituted PAHs (OPAHs) are environmental contaminants present in urban air, dust, soil and water resulting from incomplete combustion of organic materials or fossil fuels; found in crude oil and coal; and formed through photoxidation or biotransformation of microbial. It is widely recognized that PAHs pose...
In this work, flow through synthetic arrangements of contacting spheres is studied
as a model problem for porous media and packed bed type flows. Direct numerical
simulations are performed for moderate pore Reynolds numbers in the range,
10 ≤ Re ≤ 600, where non-linear porescale flow features are known to...