Comparison of in-situ and radio beacon measurements during DEOS flight F07

Details Comparison of in-situ and radio beacon measurements during DEOS flight F07 Comparison of in-situ and radio beacon measurements during DEOS flight F07

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.471..389h&link_type=abstract

In: 15th ESA Symposium on European Rocket and Balloon Programmes and Related Research, 28 - 31 May 2001, Biarritz, France. Ed.:

Computer Science

Earth Ionosphere, Spread-F

Scientific paper

After local sunset the equatorial E-region rapidly vanishes, whereas the electron density in the F-region decreases only slowly. Additionally, the pre-reversal current enhancement drives the F-layer to higher altitudes. Thus, a steep density gradient is established at the lower-edge of the F-layer, giving rise to the generalized Rayleigh-Taylor instability (GRT), which often results in equatorial spread-F and the upwelling of plasma from the bottomside ionosphere to altitudes above the F-maximum. In the DEOS campaign electron density profiles over SHAR, South India, were obtained during early and well developed phases of ESF. Profiles obtained with in-situ instruments (Impedance and Langmuir probes) from flights F05 and F06 are presented and compared with profiles measured by the local Ionosonde. From flight F07 data from the radio beacon experiment (RABER) is available, but due to a problem with the nose cone ejection data from the LP and IP are limited. The resulting density profiles from the in-situ instruments are presented and discussed. A profile of the total electron content (slant TEC) was computed and compared with the data from the RABER experiment.

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