Development and application of digital tools for geodata analysis to study natural processes in the Far Eastern seas

This paper presents the results of developing software tools for analyzing geospatial data in various formats and their application to study natural processes in the Far Eastern seas. The “NetCDF Proccessing” software was developed to analyze multidimensional NetCDF files, which are a common format for scientific databases. The program allows batch processing of NetCDF file collections, data analysis, and construction of vector maps of statistical parameter values for arbitrary regions. The program was used to study the long-term and intra-seasonal dynamics of carbon dioxide content in the atmosphere over the waters of the Far Eastern seas in different seasons. The “Ice Data Processing” software package was developed to conduct research in the field of ice conditions and operational monitoring of ice conditions in the Far Eastern seas. It allows processing and analysis of Earth remote sensing data in the formats of vector shape files, raster maps, and multidimensional arrays. The software package contains several modules with functions for calculating the area of ice cover, constructing ice encounter probability maps, calculating the dates of the onset of the main phases of the ice season, and forming maps of the distribution of ice volumes in the water area based on data on the concentration and thickness of the ice cover. The collected archive and the developed software made it possible to analyze a large array of data and identify the relationships between ice and hydrometeorological indicators. As a result, a prognostic model of the variability of the ice cover of the Sea of Okhotsk in the autumn-winter period was developed.