Determined is that the Baikal region is gaining importance due to the initiatives of the Silk Road. Since the Baikal basin has a special nature management regime, information support in the form of large cartographic atlases of complex content is to play a primary role in studies of acute and complex problems of ecologically and economically balanced development of the Baikal region, in solving these problems and in managing this development. The paper proves the need for new methodological tools for analyzing, structuring and integrating environmental-geographic information into a single integrated and multi-level atlas information system of the Baikal region. It is shown that in order to make optimal management decisions, there is a need in an infrastructural approach to the integration of territorial information and computing resources based on the Internet, a service-oriented paradigm, Web technologies, and the implementation of Open Geospatial Consortium standards for Web services is needed. Three atlases of the Baikal region are considered. The first of them is the Ecological Atlas of the Lake Baikal Basin, published in 2015 in Russian, Mongolian and English languages and was made publicly available on the Internet on the geoportal of the Baikal Information Center. The second — “Ecological Atlas of the Baikal region” placed on the geoportal of the Institute of System Dynamics and Control Theory of the SB RAS in 2017. Since 2017 we are working also on the atlas “Baikal Region: Society and Nature”. The structure, content and methodological features of the preparation of all three atlases are analyzed.
We consider the process of forming the iconic system of atlas mapping of the Baikal region. More than twenty atlases were created for the territory of the Baikal region and published. Fifteen of these were selected by us for their general cartosemiotic study. We review the results of the analysis of the information-modular structure of atlases on the example of the map index in these atlases. It is shown that the number of information-semiotic modules in each atlas can vary and depends on its subject and purpose. The subject, structure and purpose of atlases are the cause of their complex and flexible modular-thematic semiotic structure. The analysis of the internal semiotic structure of atlases was carried out from the perspective of a single system of classification of conventional signs and graphic display methods on the example of three atlases: Atlas of Transbaikalia, Atlas of the Baikal Basin and the new atlas “Baikal region: society and nature”. The information and semiotic modules of the new atlas are formed according to the macrostructure of its thematic content, taking into account territorial levels and specific substantive thematic positions of mapping. When creating this atlas, we used effective methods of semiotic modeling and a certain balance and variety of applied syntactic constructions of cartographic signs. The atlas is being prepared for a printing publication as a work of a new kind, integrating modern information about the impact of socio-economic processes on the natural environment. The balance and diversity in the combination of various types, classes, groups and types of syntactic constructions of cartographic signs revealed during semiotic analysis of atlases of the Baikal region shows a high scientific level of map compilation and works on the general semiotic design of the publication of most atlases of the Baikal region.
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