MEANING OF GEOGRHAFIC INFORMATION SYSTEMS UNDER ENVIRONMENTAL
MONITORING OF REGIONS WITH COMPLIETED ECOLOGICAL SITUATION
Dr. Alexander A.Kirsanov , Deputy Director, VNIIKAM
Birzhevoy proezd, 6, 199034, St.Petersburg, Russia
E-mail: sur@vniikam.spb.su; Fax: 7-812-218-39-16
ISPRS, Comission VII, Working Group 2
KEY WORDS: GIS, Environmental monitoring, Database, Remotely sensed data, Ecological mapping
ABSTRACT:
Geographic Information Systems (GIS) have become active used at several last years under geological,
geographical, ecological and other investigations in Russia.They allow to process varios and different levels
information to solution of many types tasks. GIS application is especially effective for environmental monitoring
of regions with complicated ecological situation. An appearanc e of such situations are caused by intensive
human activity and natural factors. Systems Geo Draw and GIS Geo Graph developed by Centre of
Geoinformative Research of Russian Academy of Sciences were used. They are permits to produce electronic:
atlases on the basis of Data Base. Atlases include set of maps cotained information on the whole natural
environment of the regions. Remotely sensed data is the basis for compilation of varios thematic maps.
1. INTRODUCTION
To study the siate and changes of environment under
influence of natural and manmade (technogenic)
factors special aimed type ofthe works named
geoecological mapping are carried out in Russia. The
main form of registration of environmental state is a
map compiled on the basis of satellite images and
ground landscape data. For studying and evaluation
of integrated impact of technogenic factors on
environment and prediction of its changes large
volume of heterogeneos information is needed. In this
aim execution of works on collection, processing and
analysis of ecologically meaning data are required.
Above mentioned tasks may be most efficient solved
by means Integrated Geographic Systems, which
allows to use large information volumes including
vector, raster and statistic data.
At the present time GIS is became universal tool for
integrated analysis of geological, geomophological,
ecological and landscape study of environment. The
core of GIS is the Database which allows to carry out
all general and necessary operations for investigations
- input, correction, storage, search, processing,
analysis, simulation, output. Database includes initial
remotely sensed and cartographic data which allow to
obtain the veratile information provided fullness and
objectivity of geoecological mapping. The different
remotely sensed data such as photographic,
multispectral and radar takes the special place in
geoecological mapping because this data the most full
reflects objective information on environment.
Cartographic materials including series maps, supply
information on several environmental components:
geological, Quaternary sediments, hydrogeological,
geochemical, geophysical, geomorphological,
economo-geographical, soil and vegetation maps,
mineral resources prospecting maps and others.
Knowledge base compiled for solution of ecological
tasks includes manysided ecologically significant
information on natural conditions and technogenic
factors and objects of area: geological features,
tectonics, especially neotectonics, relief, hydrogeology,
endogenic and exogenic processes, location of mineral
deposits, landscape geochemistry, paleogeography of
Quaternary period, physeogeographical conditions
(climate, wind and temperature regime, atmospheric
precipitation), soils, vegetation, surface water,
catastrophe phenomena, as well as location of
industrial enterprises (nuclear power plants,
hydroelectric stations and thermal power stations,
plants, integrated industrial plants, etc.) agricultural
plants (stock-breeding and poultry forms, crop areas,
pastures etc.), transport, mining and oil productions,
places of industrial nuclear explosion and burial
radioactive waste, rubbish heap, etc. Besides that data
on pollution sources with negative influence around
test area is necessary (including acid rains and
transboundary displacements etc.). Knowledge base is
presented in graphic, tables, schemes and text forms
which are stored on floppy disks and magnetic tapes.
2. METHODOLOGY
For monitoring aim the following maps are compling:
basic maps showing environmental state by using the
most early materials, in termidiate maps showing
dynamics of natural environment and its components
based on different times images, as well as forecast
maps on certain time intervals. Objectivity and quality
of map making are stipulated both estimation of
natural environment state and reliability of its changes
forecast i.e. the main task of monitoring. In
interactive regime separated contour are outlined, that
promise to increase or to enlarge initial image either
summarize or make detailed of each contours.
724 International Archives of Photogrammetry and Remote Sensing. Vol. XXXII, Part 7, Budapest, 1998
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