satellite images especially multispectral such as Landsat-
TM, JERS-1 (OPS) and Resurs-F. Application of Russian
high resolution (1-5 m) satellite images as KFA-1000,
KVR-1000, TK-350, KFA-30 000 is more prospective.
Operative information particularly at the regional level is
most fully represented on satellite images. On the basis of
different scales remotely sensed data various thematic
maps are compiled which provide investigation of area at
the different generalization levels.
The second type of necessary information are
cartographic materials including as vector layers such as
geological, geomorphologic, mineral resources (ores,
hydrocarbons, building materials), Quaternary deposits,
soils, vegetation, topographic, landscape, economic,
medical-biological and others maps.
The third type information is statistic data on
environment, economy, natural resources, infrastructure
etc.
These three types of data form bank which is a basis
of Integrated GIS. An important problem is elaboration of
data organizing structure which could provide their easy
input, saving accuracy and informative content, as well as
provide rapid and efficient spatial data processing.
Special data structure was created for GIS which permits
toexecute different operations providing both
geographic representation and spatial analysis. Two types
of this analysis may be realized under GIS:
1) Cartographic simulation based on coordinates and grid
cells processing;
2) topologic simulation based on logistic interrelations of
point, linear and area objects.
For creation of territorial (republican) GIS systems
GeoDraw 2.0 and GeoGraph under Windows (version 1),
elaborated by Center of Geoinformative Research of
Russian Academy of Sciences were used. GeoDraw is
vector editor and intend to compile base of digital maps
and plans, accordingly to requirement of current GIS.
Editor intend to work on IBM - compatible computers
with graphic adapter VGA/SVGA and corresponding
color monitor. GeoGraph allows to produce electronic
atlases and composition maps on the basis oflayers of
digital maps and connected with them tables
ofattributes, to make electronic thematic mapping, to
manipulate of the scale on the monitor as well as
execute information/inquiry functions. Under preparation
of vector digital maps system GeoDraw is used for
input, editing, transformation and convertation to
GeoGraph system format as well as to other GIS
(ARCINFO, SPANS, INDRISI, ArcCad and others).
3. STAGES OF WORK
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B4. Vienna 1996
- forecast of flooding areas caused by uplift of the
452
After determination of GIS project aims and tasks the witl
work was realized at several stages. z66
I stage. Projecting and creation of data base consist of spac
following operations:
- input of spatial cartographic and remotely sensed data;
- editing and creation of topology;
- input of attribute data;
- preliminary data processing including transformation to
certain cartographic projection.
II stage. Interpretation of remotely sensed data and |
compilation of preliminary thematic maps.
III stage. Analysis and preparation of cartographic data
and execution of spatial operations, estimation
of acquired results.
IV stage. Presentation of results as graphic documents -
maps; schemes, as well as text description
including tables. |
4. RESULTS |
As the result of work the complete set of electronic maps
was created based on Integrated GIS included the
following thematic maps on environment and natural
resources of the Dagestan: landscape, geological, mineral
resources, forecasting of hydrocarbons, topographic,
vegetation, soils, administrative regions, infrastructure,
geomorphologic zonation, agricultural, landslide danger,
hydronet, dynamics of the Caspian sea shore line at 1975-
9s.
The first experience on application of electronic maps
complete set have allowed to evaluate environmental state
and spy on landscape dynamics at the plain part of the
Dagestan under influence of the Caspian sea level uplift.
Above complete set of maps allows to realize the
following works on solution of economic and ecological
tasks:
- land use inventory;
- compile the economic and geographic characteristics of
separated administrative regions;
- conduct structural-tectonic zonation;
- reveal areas under mudrust danger at mountain regions;
- reveal areas of landslide processes development along
the Caspian sea shores;
Caspian sea level up to 5 and more meters;
- execute of ecological examination at the regions