Infrared photometric behavior and opposition effect of Mars

Details Infrared photometric behavior and opposition effect of Mars Infrared photometric behavior and opposition effect of Mars

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992msat.work...47e&link_type=abstract

In Lunar and Planetary Inst., Workshop on the Martian Surface and Atmosphere Through Time p 47-48 (SEE N92-28988 19-91)

Physics

Dust, Imaging Spectrometers, Infrared Radiation, Mars Environment, Photometry, Reflectance, Wind Effects, Aerosols, Cementation, Grain Size, Size Distribution, Surface Properties

Scientific paper

Although the instrument wasn't designed for this purpose, data from the imaging spectrometer ISM may be used for studying photometric variations of Mars reflectance, that are related to the surface materials and aerosols physical properties. ISM flew aboard the Phobos-2 spacecraft which orbited Mars from January to March, 1989. About 40,000 spectra were acquired in 128 channels ranging from 0.76 to 3.16 micro-m, with a spatial resolution of 25 km and a signal-to-noise ratio ranging up to 1000. Analysis of the results leads to the following conclusions: width variations of the opposition surge can be related to differences in porosity or grain size distribution on the various domains, with little or no effect from suspended dust. As the biggest effects are observed on dark and bright materials, intermediate behaviors on average-bright regions cannot result from a mixing process, but are more likely to come from either cementation processes or modification of the grain size distribution under the influence of wind, which under Martian conditions preferentially removes the biggest particles. Thus, a surface dust consisting in big bright and small dark grains could explain the observations.

Affiliated with

Also associated with

No associations

Rating

Infrared photometric behavior and opposition effect of Mars 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 Infrared photometric behavior and opposition effect of Mars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Infrared photometric behavior and opposition effect of Mars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1139227