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and ecological processes in permafrost complicates an adequate choice model for
these processes to be parameterized. It is known that in a periglacial environment
the effects of freezing and thawing modify drastically the ground surface and
change the gas exchange between the atmosphere and land. All these aspects
suggest the necessity to develop detailed GIS maps for regions with permafrost
(Polischuk and Polischuk 2013).
There, exist an other unsolved task connected with a link between cosmic dust
and climate change. It is known that 100
300 tons of cosmic dust enters the
atmosphere each day. It is needed to understand how this dust impacts on global
biogeochemical cycles (Ehrenfreund and Spaans 2008).
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