Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: seNorge observational gridded datasets. seNorge_2018, version 20.05   seNorge_2018 is an observational gridded dataset for daily aggregated
temperatures and precipitation data over the Norwegian mainland. The time
interval covered spans more than 60 years, from the 1st of January 1957 to the
present day. Version 20.05 of the historical archive (1957-2019) is described
in this document, with special emphasis on the variations in the methods with
respect to the previous version of the archive, which is version 18.12.

2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int