Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamics of the solar tachocline I: an incompressible study   Gough & McIntyre have suggested that the dynamics of the solar tachocline are
dominated by the advection-diffusion balance between the differential rotation,
a large-scale primordial field and baroclinicly driven meridional motions. This
paper presents the first part of a study of the tachocline, in which a model of
the rotation profile below the convection zone is constructed along the lines
suggested by Gough & McIntyre and solved numerically. In this first part, a
reduced model of the tachocline is derived in which the effects of
compressibility and energy transport on the system are neglected; the
meridional motions are driven instead by Ekman-Hartmann pumping. It is shown
that there exists only a narrow range of magnetic field strengths for which the
system can achieve a nearly uniform rotation. The results are discussed with
respect to observations and to the limitations of this initial approach. A
following paper combines the effects of realistic baroclinic driving and
stratification with a model that follows closely the lines of work of Gough &
McIntyre.

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The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
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The categories of this paper are: eess
37
The categories of this paper are: supr-con
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The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
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The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math
30
The categories of this paper are: q-alg