Effects of surficial modification processes on thermal infrared signatures in the arid southwestern United States

Details Effects of surficial modification processes on thermal infrared signatures in the arid southwestern United States Effects of surficial modification processes on thermal infrared signatures in the arid southwestern United States

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....97.4649w&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 97, no. B4, April 10, 1992, p. 4649-4665.

Physics

3

Infrared Signatures, Infrared Spectra, Lava, Remote Sensing, Spectral Reflectance, Arid Lands, Basalt, Infrared Spectrometers, Mojave Desert (Ca), Multispectral Band Scanners

Scientific paper

Thermal infrared spectra from both laboratory and remote sensing instruments were used to distinguish different age lava flows with varying amounts of surficial modification at Cima and Lunar Crater volcanic fields. The modification processes affecting the lava flows cause spectral differences that can be seen in remotely sensed emittance spectra from the thermal infrared multispectral scanner. Important influences on the thermal infrared spectra include aeolian mantling, vegetation, lave flow roughness, and rock varnish. Laboratory thermal infrared reflectance spectra of the subaerially exposed surfaces of 1-15 cm basalt fragments at Cima volcanic field show a feature attributable to rock varnish on the younger flows (0.14-0.75 m.y.) that is lacking on the older flows (greater than 0.8 m.y.). This suggests that rock varnish is thinner on the older flows at Cima volcanic field. Scanning electron microscope images and thin sections of the different age flows at Cima volcanic field support the conclusion that rock varnish is thinner and may be eroding on the older flow surfaces.

Affiliated with

Also associated with

No associations

Rating

Effects of surficial modification processes on thermal infrared signatures in the arid southwestern United States does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Effects of surficial modification processes on thermal infrared signatures in the arid southwestern United States, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effects of surficial modification processes on thermal infrared signatures in the arid southwestern United States will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1737823