Observations of High Altitude CO2 Hot Bands on Mars By the Orbiting Thermal Emission Spectrometer

Details Observations of High Altitude CO2 Hot Bands on Mars By the Orbiting Thermal Emission Spectrometer Observations of High Altitude CO2 Hot Bands on Mars By the Orbiting Thermal Emission Spectrometer

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001dps....33.4404m&link_type=abstract

American Astronomical Society, DPS Meeting #33, #44.04; Bulletin of the American Astronomical Society, Vol. 33, p.1122

Other

Scientific paper

Using 12.5 cm-1 resolution MGS/TES limb observations from four Martian seasons (Ls=104-124, 170-190, 260-280 and 350-10), we have produced limb-geometry spectral averages from 40-120 km above the limb at 3 km resolution. Observations in the middle atmosphere (60-80 km) of Mars exhibit strong non-LTE IR emission in the 9.4 and 10.4 micron CO2 hot bands. The emission varies systematically with solar zenith angle and season. Recent improvements to the Kutepov non-LTE Mars model (1991,1998) have resulted in good agreement between theory and observation. For each season we observe a single continuous non-LTE emitting region extending over approximately 140 degrees of latitude. At both equinoxes, the emitting region is approximately centered on the equator. The height of the mean emission is approximately independent of latitude. On the other hand, at each solstice the emitting region is centered at a low latitude in its respective summer hemisphere. The mean heights of these emission regions increase with latitude toward their respective summer pole (N in northern summer, S in northern winter). We describe work in progress to further improve the model. Kutepov, A.A., D. Kunze, D.G. Hummer and G.B. Rybicky, J.Q.S.R.T. 46 (1991) 347-365; Kutepov, A.A., O.A. Gusev and V.P. Ogibalov, J.Q.S.R.T. 60 (1998) 199-220. This work was supported in part by NASA's Mars Data Analysis Program. NAS/NRC funding was provided by NASA's RRA Program.

Affiliated with

Also associated with

No associations

Rating

Observations of High Altitude CO2 Hot Bands on Mars By the Orbiting Thermal Emission Spectrometer 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 Observations of High Altitude CO2 Hot Bands on Mars By the Orbiting Thermal Emission Spectrometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observations of High Altitude CO2 Hot Bands on Mars By the Orbiting Thermal Emission Spectrometer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1238592