Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cycle dependence of the longitudinal-latitudinal sunspot motion
  correlations   aims: It is well known that the azimuthal and meridional shifts of sunspots
are correlated and that the correlation exhibits a latitudinal distribution,
which is expected due to the Coriolis effect. We study the temporal behaviour
of this latitudinal distribution. methods: We analyze the daily positions of
sunspot groups, provided by the Debrecen Photoheliographic Data and the
Greenwich Photoheliographic Results and correlation values, which were mapped
in 5 deg latitudinal bins. The latitudinal distributions were examined for each
year. results: We derive a sunspot-motion correlation that exhibits a
Coriolis-type latitudinal distribution on long timescales, which are typical
for the yearly distributions; at cycle maximum, however, unexpected distortions
can occur. conclusions: The causes of the weakening of the Coriolis-pattern
remain unclear. Possible relations of the phenomenon to the Gnevyshev-gap, the
polarity reversal of the main magnetic field, and some mid-period fluctuations
are discussed.

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The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
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The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys