HR: 1400h
AN: SA33B-03    [Abstracts]
TI: Testing of the satellite electron temperature data base with incoherent scatter radar electron temperature measurements
AU: * Truhlik, V
EM: vtr@ufa.cas.cz
AF: Institute of Atmospheric Physics, Bocni II, Praha, 14131, Czech Republic
AU: Bilitza, D
EM: dieter.bilitza.1@gsfc.nasa.gov
AF: Raytheon IIS, GSFC, SPDF, Code 672, Greenbelt, MD 20771, United States
AU: Zhang, S
EM: shunrong@haystack.mit.edu
AF: MIT Haystack Observatory, Route 40, Westford, MA 01886, United States
AU: Triskova, L
EM: ltr@ufa.cas.cz
AF: Institute of Atmospheric Physics, Bocni II, Praha, 14131, Czech Republic
AB: Electron temperature (Te) in the topside ionosphere and plasmasphere is an important parameter because thermal electrons play a key role in the energy balance of these regions. There are two principal sources of Te measurements - in-situ satellite and ground based Incoherent Scatter Radar (ISR). Since the mid-nineteensixties when radars and satellite instruments began observing Te a large volume of data has been collected by these two techniques. Occasional comparisons of results of these two methods showed agreements but also disagreements. We have built a large database of electron temperature based on all available satellite measurements, the greatest volume of which is represented by DMSP data. Especially DMSP data statistically show surprisingly high values for low solar activity and daytime (Bilitza, 2006). To investigate this discrepancy we have compared Millstoen Hill incoherent scatter measurements with simultaneous satellite measurements during DMSP overflights of the station. Results of this study are shown, discussion is presented and possible implications on empirical Te modeling are pointed out. Bilitza D., Truhlik V., Richards P.G., Abe T., and Triskova L.: Solar Variations of Mid-Latitude Electron Density and Temperature: Satellite Measurements Model Calculations, Advances in Space Research, in press, 2006.
DE: 2437 Ionospheric dynamics
DE: 2447 Modeling and forecasting
DE: 2467 Plasma temperature and density
DE: 2481 Topside ionosphere
SC: SPA-Aeronomy [SA]
MN: 2007 Joint Assembly