Ecological Systems and Devices Annotation << Back ALGORITHMS FOR THE CALCULATION OF SURVIVABILITY INDICATOR FOR THE «CLIMATE–NATURE–SOCIETY» SYSTEM V.F. Krapivin, V.Yu. Soldatov, I.I. Potapov Biocomplecity problem in the global «climate–nature–society» system is considered within the framework of a complex theory of hierarchical systems. Hierarchy of spatial and temporal scales are modelled in terms of information type and magnitude, diversity of the elements, dynamic stability of biogeochemical cycles and relationships between the space of the elements. A simulation-methodic model of biocomplexity is synthesized based on correlations between the basic elements of the «climate–nature–society» system. The regulation mechanisms of living processes are taken into account and environmental quality regulations or restrictions include also. Basic principles of global model are formulated and its information basis is analyzed. The interconnection between the criteria of biocomplexity, stability and survivability is analyzed. Keywords: biocomplexity; indicator; survivability; climate; society; model. Contacts: E-mail: soldatov_v@list.ru, E-mail: ipotapov37@mail.ru Pp. 11-17.