| How an archaeological-geophysical investigation could be optimised? Obviously, researchers
a priori suggest to receiving maximum of archaeogeophysical information by minimal
monetary and time expenditures. However, this solution of this task is not trivial one. Let us
consider this problem on example of one of the most frequently applied archaeogeophysical
methods – archaeomagnetic survey. The archaeomagnetic research optimisation can be
solved on the basis of following criterions: (1) Necessary expenditures for realization of the
integration (cost criterion C), (2) Necessary time for realization of the integration (time
criterion T ), (3) Informativeness of archaeomagnetic examination (informational criterion
Î ). Criterions C and T can be easily determined by a direct calculation whereas
evaluation of the criterion Î is a complex research problem. Besides this, it should be
taken into account that criterions C and T , from one side, and criterion Î from
other side, contradict with each other. A principal logical-heuristic model of the
archaeomagnetic information can be described in the following form (after Eppelbaum et al.
(2003)):
Î = Q -ª R -ªV,
where Q is the quantitative estimation of archaeogeophysical information, R is the estimation
of informational reliability corresponding to the semantic criterion, V is the estimation of
informational value according to the pragmatic criterion, and -ª is the symbol of
unification.
Parameter Q
Significance of the parameter Q will increase when we will apply the most effective
processing and interpreting schemes. From the geophysical point of view, parameter Q is the
most essential one. The developed advanced interpreting system for complex environments
(oblique magnetization, rugged terrain relief and unknown level of the normal magnetic field)
(Khesin et al., 1988, 1996; Eppelbaum et al., 2000, 2001; Eppelbaum et al., 2004, 2006,
2007; Finkelstein and Eppelbaum, 2007; Eppelbaum, 2010a, 2011a, 2011b; Eppelbaum and
Mishne, 2011) includes (besides conventional methods) the following components: (1)
removing the secondary effect of temporary magnetic variations, (2) classification of the
disturbing objects using interpretation of low-intensive temporary magnetic variations, (3)
calculation of rugged relief influence by a correlation method, (4) utilization the
correlation dependence for obtaining parameters of magnetization of the upper part of
geological section, (5) unmasking the useful anomalies against the intensive noise
background by the use of informational and wavelet procedures, (6) delineation of ring |