Investigating the Latitudinal Temperature Variation in the Lower Thermosphere Using N2 Lyman-Birge-Hopfield (LBH) Band Emissions From HITS/ARGOS

Details Investigating the Latitudinal Temperature Variation in the Lower Thermosphere Using N2 Lyman-Birge-Hopfield (LBH) Band Emissions From HITS/ARGOS Investigating the Latitudinal Temperature Variation in the Lower Thermosphere Using N2 Lyman-Birge-Hopfield (LBH) Band Emissions From HITS/ARGOS

May 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agusmsa31a..03a&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SA31A-03

Physics

0350 Pressure, Density, And Temperature, 0394 Instruments And Techniques, 1640 Remote Sensing (1855)

Scientific paper

Temperatures in the lower thermosphere (150-200 km) have been difficult to measure, but they are important for understanding variations in the neutral densities at higher altitudes. The High-resolution Ionospheric and Thermospheric Spectrograph (HITS) instrument on the Advanced Research and Global Observation Satellite (ARGOS) provides atmospheric temperatures at these altitudes by observing the N2 Lyman-Birge-Hopfield (LBH) band emissions, and these temperatures have shown good agreement with Mass Spectrometer and Incoherent Scatter (MSIS) model calculations during geomagnetically quiet conditions. Daily averages of daytime observations from HITS show statistical uncertainties of about 35 K for averages of the observations below 200 km. Such small uncertainties can improve our understanding of thermospheric temperatures and densities. In this presentation the latitudinal variations in the temperatures observed by HITS are examined.

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