PE TEA VA ES 
SSI Aet 
  
W571 TRI 
AH 1 
  
d) 
  
Fig.4. Sequence of multispectral photographs showing the upper part of the lignite deposit. Lignite layers 
are interbedded by coal - clay and gyttja and are easily recognized on the infrared band only. a)photograph 
taken without filter (panchromatic mode); b)green band; c)red band; d)IR band. 
3. THERMAL SLOPE MONITORING. 
The concept of infrared mapping slope monitoring 
is based of the results of ground observations and 
laboratory testes. According with obtained results 
the thermovision may by use: 
e to the sensing of water signs, first of all within 
permanent slopes of strip mine, 
e to the localization of toxic soil-within the dump- 
ing ground and to the control of their neutraliza- 
tion. 
The detection of presence of water within permanent 
slopes of the dumping ground (in the form of 
outflow, effusion or the higher moisture zones) is 
very important element having influence on the 
evaluation of dump stability conditions, and on the 
work of drainage system in the mine. 
The method of thermovision slope monitoring bases 
on occurrence of different temperatures between 
  
wet and relatively dry ground. Generally observed 
thermal anomaly are caused by real temperature 
differences, although frequently the great sig- 
nificance for projection of thermal ground-water 
conditions has the emissivity factor. It is satisfied 
that the clear dependence of the emission coefficient 
on the water saturation degree of ground, for the 
some temperature level (Blanchard et al, 1974, El- 
lyett et al, 1979; Mularz et al, 1984). 
The best feature for interpretation of water level 
in the slope have the thermograms made in the 
early morning, before the sunrise, during the max- 
imum ground chilling. In some meteorogical situa- 
tions good results are also obtained on thermograms 
made during the day time (Fig.5). 
The advisability of remote sensing thermal techni- 
ques to investigation of dump formation is motivated 
by necessity of full diagnostic of ground character 
for land reclamation. The reconstruction of the active 
soil layer on the ground, consisted of different