Physics
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsa52a0378e&link_type=abstract
American Geophysical Union, Fall Meeting 2002, abstract #SA52A-0378
Physics
0310 Airglow And Aurora, 0355 Thermosphere: Composition And Chemistry, 2427 Ionosphere/Atmosphere Interactions (0335), 2443 Midlatitude Ionosphere
Scientific paper
In the thermosphere, neutral temperature variations are important for understanding neutral and ion density variations, but the temperature is difficult to measure. A promising approach is to determine the temperature from the rotational temperature of the N2 in Lyman-Birge-Hopfield (LBH) band emissions. Recent observations by the Advanced Research and Global Observations Satellite (ARGOS) are suitable for testing this approach. However, multiday averages of temperatures routinely exhibit dramatic deviations from an proxy (F10.7) based model (MSIS). High correlations (~0.98) have previously been found between long term (81 day average) observations of F10.7 and neutral densities. Averages of mid and low latitude observations from tangent altitudes at 200 km and 140 km show deviations of 100 K or more (latitudinally-averaged). Observed temperature differences can be an order of magnitude greater than statistical errors in the rotational temperature measurements. Although the correlation between the long term averages of F10.7 and the short wavelength solar fluxes is high, F10.7 based models do not adequately represent the shorter term variations. Comparison to coincident, short wavelength solar observations from the Student Nitric Oxide Explorer (SNOE) satellite shows that shorter term variations (< 81 day) in the solar flux are a significant factor in the temperature differences.
Bailey Scott M.
Budzien Scott A.
Dymond Ken F.
Eastes Richard Wayne
McCoy Robert P.
No associations
LandOfFree
Correlation between the Thermospheric Temperature Derived from ARGOS Observations of N2 Lyman-Birge-Hopfield Emission and Solar Soft X-ray Observations from SNOE 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 Correlation between the Thermospheric Temperature Derived from ARGOS Observations of N2 Lyman-Birge-Hopfield Emission and Solar Soft X-ray Observations from SNOE, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Correlation between the Thermospheric Temperature Derived from ARGOS Observations of N2 Lyman-Birge-Hopfield Emission and Solar Soft X-ray Observations from SNOE will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1434253