Physics
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsa31b1432c&link_type=abstract
American Geophysical Union, Fall Meeting 2009, abstract #SA31B-1432
Physics
[0350] Atmospheric Composition And Structure / Pressure, Density, And Temperature, [2427] Ionosphere / Ionosphere/Atmosphere Interactions
Scientific paper
Measurements of neutral gas density in the thermosphere at the base of the Earth’s south magnetic cusp from the Streak mission are reported and discussed. In contrast to recent reports of enhanced density in the cusp, these measurements show the density to be depleted relative to the surrounding region. The difference is interpreted as an altitude effect. This observation and interpretation lead to new constraints on the physical mechanisms that could explain cusp upwelling and are inconsistent with a Joule heating mechanism. A mechanism based on heating by soft cusp particle precipitation is put forth, and model calculations are used to show how it explains the relative depletions observed by Streak as well as the enhancements at higher altitudes reported previously.
Clemmons James Hart
Walterscheid Richard L.
No associations
LandOfFree
Thermospheric density in the Earth’s magnetic cusp as observed by the Streak mission 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 Thermospheric density in the Earth’s magnetic cusp as observed by the Streak mission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermospheric density in the Earth’s magnetic cusp as observed by the Streak mission will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1780162