Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A modeling system for monitoring the air - water pollution   Regular monitoring of key water quality parameters is important for assessing
its the hydrological status in conjunction with air-pollution interaction. In
this study, a new cost - effective technique based on the geo-ecological
information-modeling system (GIMS) is implemented employing the combined use of
simulation experiments and in field observations to investigate the problem of
optimizing water quality monitoring. The GIMS, is accompanied by 39 elements
selected in 8 management systems and 31 functional elements, which are
described in detail. It is shown that the combined use of model and field
observations allows reliable recording of water quality and optimization of the
monitoring regime. Finally, simulation experiments in a lagoon are presented,
demonstrating the fidelity of the proposed modelling system to optimize water
quality control through regular in field measurements and simulations.

18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph