Computer Science – Sound
Scientific paper
Apr 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012georl..3907104m&link_type=abstract
Geophysical Research Letters, Volume 39, Issue 7, CiteID L07104
Computer Science
Sound
Ionosphere: Ionospheric Irregularities, Ionosphere: Plasma Temperature And Density, Ionosphere: Plasma Waves And Instabilities (2772), Ionosphere: Polar Cap Ionosphere, Ionosphere: Instruments And Techniques
Scientific paper
The sounding rocket Investigation of Cusp Irregularities 2 (ICI-2) was launched into the cusp ionosphere over Svalbard to investigate the production of decameter scale irregularities in the electron plasma associated with HF radar backscatter. The main mission objective was to obtain high-resolution measurements of decameter scale electron plasma irregularities and to quantify the growth rate for the gradient drift instability (GDI). At the 5.7 kHz sampling rate of the absolute density measurements, ICI-2 has provided the first documentation in terms of absolute electron density measurements of how 10-m structures are located on km scale electron density gradients. ICI-2 traversed a cusp electron density structure created by ongoing soft precipitation. 10-m scale irregularities were generated at km scale density gradients. The estimated growth time for the GDI process was 10–50 seconds.
Abe Takuro
Bekkeng T. A.
Jacobsen K. S.
Lester Mark
Moen Joran
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