ASD FieldSpec 3 User Manual page 69

www.asdi.com
ASD Document 600540 Rev. J
Figure 7-2 Transmission spectrum of water vapor for typical
atmospheric conditions
Carbon dioxide has strong features in the 2000-2200 nm range (see
Figure 7-3), a region of major interest for the identification of layered silicate
minerals. Carbon dioxide is a well mixed gas, thus the intensity of the
absorption features associated with carbon dioxide are not as variable as those
of water vapor, but they do decrease with increasing altitude.
Figure 7-3 Transmission spectrum of carbon dioxide for typical
atmospheric conditions.
Other major atmospheric components that influence the atmospheric
transmission spectrum are shown in
59
Chapter 7 Field Measurements
Figure 7-4.
FieldSpec® 3 User Manual