Auroral Small-scale Structure Observed with ASK and EISCAT Svalbard Radar

Details Auroral Small-scale Structure Observed with ASK and EISCAT Svalbard Radar Auroral Small-scale Structure Observed with ASK and EISCAT Svalbard Radar

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsm31b0316d&link_type=abstract

American Geophysical Union, Fall Meeting 2006, abstract #SM31B-0316

Physics

0310 Airglow And Aurora, 0394 Instruments And Techniques, 2407 Auroral Ionosphere (2704), 2704 Auroral Phenomena (2407)

Scientific paper

We report on ground-based optical studies of the fine structure of the aurora, conducted with a set of optical instruments and the EISCAT Svalbard radar. The optical instruments include ASK (Auroral Structure and Kinetics), and SIF (Spectrographic Imaging Facility). ASK is a high resolution multispectral imager with passband filters that isolates the O+ (7320 Å) emission, and the line of atomic oxygen at 7774 Å. SIF consists of one HiTIES spectrograph with a mosaic filter designed to study the same spectral features as ASK, and one ICCD imager with a cut-off filter blocking emissions with a wavelength shorter than 6450 Å. We compare the ionospheric ionisation as observed by ESR, and observed emission brightnesses, using electron transport and ion chemistry model.

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