=Paper=
{{Paper
|id=Vol-2527/short8
|storemode=property
|title=Service-oriented Information and Analytical System of Estimation of Influence of the Lithosphere Model on Dynamic Parameters of Rocky Soil Oscillations from Earthquakes of Southern Baikal Region
|pdfUrl=https://ceur-ws.org/Vol-2527/short8.pdf
|volume=Vol-2527
|authors=Gennadiy M. Ruzhnikov,Anatoliy V. Klyuchevskii,Vyacheslav V. Paramonov,Andrey A. Mikhailov,Roman K. Fedorov,Vladimir M. Dem’yanovich,S. Demberel
}}
==Service-oriented Information and Analytical System of Estimation of Influence of the Lithosphere Model on Dynamic Parameters of Rocky Soil Oscillations from Earthquakes of Southern Baikal Region==
https://ceur-ws.org/Vol-2527/short8.pdf
Service-oriented Information and Analytical System of Estimation
of Influence of the Lithosphere Model on Dynamic Parameters of
Rocky Soil Oscillations from Earthquakes of Southern Baikal
Region
Anatoliy V. Klyuchevskii Gennadiy M. Ruzhnikov Vyacheslav V. Paramonov
Institute of the Earth’s Crust SB Matrosov Institute for System Matrosov Institute for System
RAS Dynamics and Control Theory Dynamics and Control,
Irkutsk, Russia SB RAS Irkutsk Scientific Center SB
Irkutsk, Russia RAS
Irkutsk, Russia
Andrey A. Mikhailov Roman K. Fedorov
Matrosov Institute for System Matrosov Institute for System Vladimir M. Dem’yanovich
Dynamics and Control Theory Dynamics and Control Theory, Institute of the Earth’s Crust SB
SB RAS Irkutsk Scientific Center SB RAS
Irkutsk, Russia RAS Irkutsk, Russia
Irkutsk, Russia
S. Demberel
Institute of Astronomy and Geophysics,
Mongolian Academy
Ulaanbaatar, Mongolia
Abstract
The region of Southern Baikal belongs to the territories with high seismic activity.
However, the issues of complex assessment of the influence of the lithosphere model on
the dynamic parameters of the rock ground vibrations from earthquakes are
insufficiently studied. It should be taken into account that the research is based on
monitoring, storage and processing of large amounts of distributed Spatio-temporal data.
To assess the impact of the lithosphere model on the dynamic parameters of rock ground
vibrations from earthquakes in the region of Southern Baikal, a service-oriented
information-analytical system (IAS) of geoportal type is developed. It allows integrate
heterogeneous thematic databases and by using services to resolve challenges of
modelling, comparison and assessment of dangerous geological processes occurring in
the region.
1 Introduction
The region of South Baikal belongs to the territories with high seismic activity. For which issues of the dynamic
interaction of mobile areas with the platform block at the neotectonic stage and the patterns of the Late
Cenozoic fault formation [Kly09]. Comprehensive assessment of the influence of the lithosphere model on the
dynamic parameters of rocky ground earthquakes [Kly12], haven’t been sufficiently studied. Thus, endogenous
geological processes pose a serious danger and require study including the usage of modern information and
telecommunication technologies. This justifies the relevance of creating an information-analytical environment
(IAS) using a service-oriented paradigm (SOA).
_______________
Copyright © 2019 for this paper by its authors. Use permitted under Creative Commons License Attribution 4.0
International (CC BY 4.0).
SOA is a concept of building an information system architecture from weakly interconnected parts based
on services – isolated components with fixed interfaces (API) that perform certain functions. Compared with
the well-known concepts, the use of SOA provides is a higher-level development of IAS that allows reduce the
process and timelines for their creation. Thus, the development of IAS, providing analysis and evaluation of
such processes is a relevant task.
2 Conceptual basics of information–analytical system creation
The paper is devoted to the task of creation of IAS with service–oriented architecture. This type of architecture
allows to integrate heterogeneous databases of monitoring and use Web–services to identify and study
dangerous geological processes in the region. It is possible to use both local and distributed in the Internet
network Web–services. The system provides the possibility of using models, algorithms, and data that
developed and provided by various researchers. The IAS allows visualise the results of geological processes
modelling and zoning of seismic hazard, as well as the formation of thematic maps variety.
It should be taken into account that researches are based on monitoring, storage, and processing of large
volumes of Spatio-temporal data, which have the following specificity:
– Spatial distribution of seismic stations.
– Weak expansion of infrastructure for data exchange monitoring.
– Large volumes, Spatio-temporal character, and different format data of monitoring.
– The localisation of storage and data processing systems.
According data spatial nature, the emphasis was made on OGC standarts [Byc16] usage and conceptual
basics of spatial data infrastructure of integrational type. This emphasis allows provide the following:
– accounting the requirements of software standardisation and unification;
– implementation of distributed information resources, based on a service– oriented paradigm, organisation
and creation principles;
– open–access and usage of spatial data (SD) and metadata through services according to OGC specifications
(WMS, WCS, WFS, CSW, KML, etc.);
– the usage of not only Web, SaaS –services, services of search and obtaining SD, analysis and processing
(cartographic Web–applications, as well as Web– applications with GIS functionality, etc.);
– creation of thematic geoportals and data storage and processing centres (DPC);
– continuity of existing spatial and thematic information resources.
Creation of a service–oriented IAS for assessing the influence of the lithosphere model on the dynamic
parameters of rocky ground vibrations from earthquakes includes:
– creation of a geoportal and basic infrastructure components of IAS;
– formation of subsystems for effectively filling bases of thematic and spatial data of seismic activity;
– adaptation and implementation of original models of stress–strain state, seismicity, zoning, earthquake
analysis of large lithospheric blocks;
– formation of a set of interconnected models in the form of a complex of WPS services for solving problems
of seismic activity analysis;
– organisation in the IAS of a distributed ”cloud” information and computing process with parallelization
elements to speed up the computing process.
The geoportal-type IAS is aimed at integrating various-format earthquake monitoring data received by
seismic stations, various research groups, as well as the use of their processing services [Par13].
The proposed approach provides the ability to download heterogeneous spatiotemporal thematic IAS data,
including those contained in catalogs and bulletins of earthquakes in the southern Baikal region. IAS allows
you to build a variety of thematic maps, as well as visualize the results of modeling of geological processes
and zoning of seismic hazard.
Attracting Web-based technologies allows us to expand the scope of IAS without the need to install
specialized software for each workplace.
As part of the creation of IAS, to study the general seismic zoning of the territory, a web service has been
developed that provides an analysis of the geological and geophysical features of the natural environment
combining the geological structure, topography, geodynamic factors and seismicity. The service allows the
study and accounting of the features of the focal environment and physical processes occurring in the focal
zones of earthquakes in the southern Baikal region. These features are associated with the geological structure,
structure, material composition, stress-strain state and deformation rate of the focal medium and are due to
geodynamic factors and seismic conditions.
3 The main elements of an information analytical system
The structure of the geoportal type IAS developed at the Institute of Theoretical and Applied Mathematics of
the SB RAS includes the following components as shown on Figure 1:
– The service and geodata management system provides general geoportal management, provides functions:
a file manager, access control for data and services, publishing and displaying data sheets, and launching
geoprocessing methods for data.
– Data storage system (SHD) - software and hardware for reliable data storage, guaranteeing storage,
uninterrupted operation and high speed of reading / writing data. Storage access is done using the file
manager. Each user is provided with a directory within the storage system. Creation of a directory and
allocation of appropriate rights is performed by the CMS.
– The FTPS server (File Transfer Protocol + SSL) is designed to provide access to the storage system file
system. Simplifies the loading and unloading of large amounts of data. Managed by FTPS server using
CMS.
– Metadata server - contains a catalog of metadata and provides storage, processing of metadata.
– The PostgreSQL database management system (with the PostGIS extension for processing spatial data) is
designed to store user datasets and geoportal service information. The PostGIS extension allows you to
store spatial data and implements support for OGC standards.
– SMDServer - designed to visualize maps on the Internet. Provides high speed display of graphic and
attribute information.
– WPS - server (Zoo-Project) - provides local and distributed on the Internet geo-processing of raster and
vector data, organizes access to desktop GIS, geo-modeling packages and program interaction via the Web
interface.
– MapServer is an open-source server GIS, launched through the CGI (Common Gateway Interface), an
environment for creating cartographic Web services, and displaying custom maps.
Figure 1: IAS architecture
The data obtained as a result of distance and field studies are usually stored in the form of separate
spreadsheets, Excel and CSV formats. Each of the researchers adheres to the recommendations for the
presentation of data, but independently chooses the structure and model of their organization. The heterogeneity
of data formats requires their pre-processing for further correct loading into an integrating DBMS.
Integration of heterogeneous data related to the same subject area in the form of relational tables provides
the ability to more fully present the description of the subject area and conduct analysis taking into account
many characteristics. However, for the correct data integration, it is required to ensure the high quality of the
primary material. Otherwise, the analysis of the data set will be difficult. In order to bring semi-structured data
into a relational view and go directly to the load in the integrating database, an original loading service software
interface is proposed that provides the ability to load “flat” tables into a relational database. In the future, this
will greatly simplify the ability to perform data operations. To bring data to a relational view, it is proposed to
use the TabbyXL [Shi19] tool. The canonical form of presentation of the tables, enriched by meta-information
about the specifics of the data, is loaded into the target table of the database of the information-analytical
system.
The result of many years of research on the seismic South Baikal region is the creation of a number of
computational models. FORTRAN’s language was usually used for their development, since it was popular in
the scientific community since the 50s of the 20th century, and is still used today. However, the current
implementation of the information-analytical system involves the development of services in C ++. Therefore,
to automate the creation of WPS services, a tool based on the f2c translator from FORTRAN to C ++ was
developed. This service allows you to semi-automatically broadcast from FORTRAN to C ++.
4 Conclusion
The developed prototype of a service-oriented information-analytical environment for assessing the influence
of the lithosphere model on the dynamic parameters of rocky vibrations from earthquakes in the South Baikal
region with spatial analysis functions. It allows monitoring and a comprehensive analysis of the seismotectonic
situation and decision-making on the prevention and minimization of risks resulting from hazardous geological
processes.
5 Acknowledgement
The work was financially supported by RFBR grant 17-57-44006. Experiments were performed on the
resources of the Shared Equipment Centre of Integrated information and computing network of Irkutsk
Research and Educational Complex http://net.icc.ru.
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