No abstract

The author presents the results of a web service development aimed at implementing a conceptual model of field geophysical surveys mapping monitoring. The issues of adapting the open source software DBMS PostgreSQL and JavaScript library Leaflet for centralized data gathering, systematization, updating and cartographic visualization of the geological exploration’s field phase progress are considered. The web service was tested during the seismic acquisition at the license areas in the Russian Federation and the Republic of India. It was used as the main tool for spatial analysis of the field crews’ productivity and considering natural and anthropogenic objects that prevent the timely execution of planned volumes of topographic and geodetic and seismic surveys, as well as a means of communication between specialists and administrative decision making. The results of the approbation showed an increase in the efficiency of geological exploration works’ field phase cartographic support. The experience of using open source software, a systematic approach to forming the server space and storing information in the database presented in the article enables developing web-mapping of exploration work carried out simultaneously in several territories through different methods of geophysical exploration.

The author describes four main work directions of creating geophysical maps using modern software, represented by specialized systems (SSS) and geographic information ones (GIS). The technological features of data processing practice stages and creating geophysical fields’ digital models, the compilation and designing geophysical maps’ thematic content as results of geological and geophysical works are considered. The main tasks of combined use of GIS and SSS tools were identified. To overcome these shortcomings, additional tools were developed for ArcGIS, as the leading system in the oil and gas industry. They ensure the preservation of design parameters for color scales adopted in the SSS; automatic calculation of the labels’ rotation angle to the objects of point localization; maintaining the layer structure of map projects at exporting to publishing program formats. The solutions considered in the article can be applied for compilation and design of isoline maps in some other areas of thematic cartography, and can also contribute to improving the cartographic component of domestic geological and geophysical software products and geographic information systems.

Timely performance of field geophysical surveys directly affects the deadline of identification and preparation for exploitation of new mineral deposits. Current monitoring the productivity of geophysical crews making field surveys is based on daily preparation and analysis of reporting tabular and cartographic materials, the formation of which requires skills in working with geodata. To optimize fieldwork production, you need an intuitive interface that provides unified access to information for a large number of users and does not require installation and training specialized software. The author offers a conceptual model of field geophysical survey cartographic monitoring and measures for adapting web-mapping technology to the specifics of field work regardless to the method of geophysical research used. The practical implementation of the conceptual model will solve the tasks of automated preparing daily reports, storing information in a common database and formation of interactive cartographic images. As a result, developing a web-mapping service is expected, its use will contribute to the adoption of operational management decisions to prevent violating the terms of contractors’ obligations for performing field geophysical research in the framework of geological exploration works.

The features of cartographic supporting geophysical research at the present stage of cartography and exploration geophysics development are discussed. The current situation and prospects of using GIS and web technologies are characterized basing on the analysis of scientific and industrial experience of domestic and foreign public as well as private geological and geophysical organizations. The analysis was performed at key stages of geophysical research, including the analysis of geological and geophysical studying the work area, designing geophysical works, field works, processing and interpretation of geophysical observations results, compilation of reporting materials, as well as the accumulation and storage of information. The examples of modern geoportals that provide quick access to geological and geophysical infor-mation in various forms of presentation, including cartographic data, are presented in article. The conclusions and recommendations were formulated according to results of the study. They are aimed at improving the efficiency of cartographic supporting geophysical research and the development of inter-sectoral interaction between cartography and geophysics.