thermal infrared scanner is suitable to show, where inflows are 
and how this water is mixing with the water of the river. Fig.11 
shows the inflow of the cooling water of the power station Vocke 
rode near the motor-highway bridge. The inflowing water is about 
2K warmer than the water of the Elbe. It is interesting, that the 
water from the power-station is mixing with the water of the Elbe 
very slowly. In a distance of 13km from the inflow there is still 
a temperature difference of 0,4K. 
Fig.12 shows the active waste dump of Griebo near the river Elbe. 
The waste dump is characterized by a higher temperature than the 
environment. 
8. Conclusion 
The results from the airborne remote sensing missions, discussed 
above, justify the EFAS concept as a first step in the develop 
ment of a complex airborne remote sensing system. 
A further development is directed to apply scanners with improved 
geometrical resolution and scanners in other spectral bands (e.g. 
VIS/NIR-scanners), with real-time aircraft-, roll-, pitch-, and 
yaw-correction. An essential contribution to airborne remote 
sensing will be the application of stereo scanners. 
In cooperation with the Weltraum Institut Berlin (WIB) GmbH we 
will carry out in October 1990 the projects "Altlasten“ (waste 
dumps) and ttLBE . The FTINT-TIR-scanner, a PC-aided aquisition 
and recording system will be installed in the WIB owned CESSNA 
207 .