Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Internal tide generation from isolated seamounts and continental shelves   We model linear, inviscid non-hydrostatic internal tides generated by the
interaction of a barotropic tide with variable topography in two dimensions. We
first derive an asymptotic solution for the nonuniform barotropic flow over the
topography that serves as forcing for the baroclinic equations. The resulting
internal-tide generation problem is reformulated as a Coupled-Mode System (CMS)
by means of a series decomposition of the baroclinic stream function in terms
of vertical basis functions. We solve this CMS numerically and also provide a
method for estimating the sea-surface signature of internal tides. We consider
several seamounts and shelf profiles and perform calculations for a wide range
of (topographic) heights and slopes. For subcritical topographies, the energy
flux as a function of height exhibits local maxima, separated by cases of
weakly- or even non-radiating topographies. For supercritical topographies, the
energy flux generally increases with height and criticality. Our calculations
agree with the Weak Topography Approximation only for very small heights.
Perhaps more surprisingly, they agree with the Knife Edge model only for
moderately supercritical topographies. We also compare the effect of the
adjusted barotropic tide on the energy flux and the local properties of the
baroclinic field with other semi-analytical methods based on a uniform
barotropic tide. We observe significant differences in the flow field near the
topographies only.

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The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
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The categories of this paper are: chao-dyn
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The categories of this paper are: econ
13
The categories of this paper are: quant-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
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The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an