Application of Statistical Data Analysis Methods for Zoning Kara Sea Waters

The Kara Sea has been systematically studied since the beginning of the 20th century. Large amounts of data have been accumulated as a result of both national and international expeditions. Many publications have been devoted to Kara Sea regional zoning as per the geomorphological, biological, oceanographic aspects of its nature. This paper presents the results of statistical analysis of combined hydrophysical and hydrochemical data. On its basis, seven regions of the Kara Sea were identified, and for each region, the main characteristics are presented and the factors governing them are highlighted. The results can be used to reconstruct the seasonal variability of hydrophysical and hydrochemical parameters, as well as to analyze their interannual variability in different regions of the sea in order to study climatic change response.