Operational Diagnostics, Estimation of the Scale of Damage and Aftermath Reduction of the Stressful Natural Processes - New Ecoinformatics Tools in Environmental Science: Applications and Decision-making - page 722

X ¼ [

ð i ; j Þ X ij ; X ij ¼ [

l X i s j l etc

:

s ;

According to this scheme, the territory ʩ at the fifth level of the database is

;

a ij represented by a set of matrices A k ¼ ð Þ , where algorithms and

data from other levels are used to determine the elements a ij . An identi

k ¼ 1 ; ...;

er as a

simplest binary approximation of the territory ʩ can be exempli ed as follows:

0 ; ðÞ62 X; i ;

a ij ¼

a; i ; ðÞ2X;

where the symbol can identify the sets of elements of the aqua-geosystem sup-

posed to be taken into account in the system of data processing. This semantics
reduces the dimensionality of the

ʱ

fifth level of the database, but increases the
probability of information distortion in the dialogue mode. In other words, the
problem of an optimization of the

fifth level of the database exists.
On the whole, models of hydrophysical and hydrochemical processes over a
limited territory or on global scale permit to carry out a numerical experiment and to
estimate the parameters of a hydrophysical object. Use of the numerical experiment
in the hydrophysical studies has much in common with other fields of its appli-

cation. A closed series of algorithms of analysis of the measured data is constructed
and on its basis the fourth and

fifth levels of the database are formed. An adaptive
procedure of the use of the aqua-geosystem functioning model (according to the
scheme in Fig. 9.3 ) makes it possible to start a dialogue mode of the estimation of
many parameters, which cannot be reliably estimated from the measured data or
which raise doubts.
By applying additional quantitative criteria of stability in the dialogue mode, it is
possible to find permissible ranges of changes of some parameters. Schematically, it

is shown in Fig. 9.4 .
The most substantial link in the system of automatization of the hydrophysical
experiment is the processing of the data on the hydrophysical factors, whose
knowledge plays a certain role in assessing the complex state of the aqua-geo-
system. These are factors, which introduce into the model some elements of
instability and are the source of the aqua-geosystem

s dynamics. Therefore, in all
algorithms for the hydrophysical experiment, hydrodynamical equations serve for a
reference point for strictness and accuracy. An adequate system of hydrodynamical
equations describes changes of the components of the current velocity, pressure and
density and contains

'

five equations: equation of motion for three components,
equation of continuity and equation of state. Since we are interested in the problem
of pollutant transport in the hydrological network, these equations should be sup-
plemented with equations of water balance in the territory.