Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the dynamics of internal waves propagating in stratified media of a
  variable depth: exact and asymptotic solutions   The dynamics of internal waves in stratified media, such as the ocean or
atmosphere, is highly dependent on the topography of their floor. A closed-form
analytical solution can be derived only in cases when the water distribution
density and the shape of the floor are modeled with specific functions. In a
general case when the characteristics of stratified media and the boundary
conditions are arbitrary, the dynamics of internal waves can be only
approximated with numerical methods. However, numerical solutions do not
describe the wave field qualitatively. At the same time, the need for a
qualitative analysis of the far field of internal waves arises in studies
applying remote sensing methods in space-based radar applications. In this
case, the dynamics of internal waves can be described using asymptotic models.
In this paper, we derive asymptotic solutions to the problem of characterizing
the far field of internal gravity waves propagating in a stratified medium with
a smoothly varying floor.

23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg