Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Detection of Molecular Scattering Field by Polarization Analysis of Sky
  Background During the Transitive Twilight and Temperature Measurements near
  the Stratopause   The simplest version of the method of detection of single molecular
scattering basing on the polarization measurements of the twilight sky
background by all-sky cameras is considered. The method can be used during the
transitive twilight (solar zenith angles 94-98 degrees), when effective single
scattering takes place in upper stratosphere and lower mesosphere. The
application of the method to the multi-year measurements in the vicinity of
Moscow and Apatity allows determination of temperature of these atmospheric
layers and estimation of contribution and properties of multiple scattering
during the transitive twilight period.

24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg