Remote-Sensing Technologies and Data Processing Algorithms - New Ecoinformatics Tools in Environmental Science: Applications and Decision-making - page 164

Fig. 2.18 Spectral
characteristics of peat
emissivity coef cient under
weighed humidity: 1 — 45 %;
2 — 54 %; 3 — 67 %; 4 — 78 %

Fig. 2.19 Spectral
characteristics of absorption
coefficient for peat under
weighed humidity: 1 — 40 %;

2 — 53 %; 3 — 63 %; 4 — 70 %;

5 — 73 %

Figure 2.22 shows the stability of averaged maximal variations of radio-
brightness temperatures registered in different directions of

flying laboratory traces.
Total error of radio-brightness contrasts is near to 2 K. Results given here show that
microwave radiometers allow the detection of

fl

fire in its beginning with high

probability.
Another important area for the application of microwave radiometry is remote
control of geothermal sources. Microwave monitoring facilitates analyzing the