Physics
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsm33a1556h&link_type=abstract
American Geophysical Union, Fall Meeting 2009, abstract #SM33A-1556
Physics
[0310] Atmospheric Composition And Structure / Airglow And Aurora, [2439] Ionosphere / Ionospheric Irregularities, [2776] Magnetospheric Physics / Polar Cap Phenomena, [6964] Radio Science / Radio Wave Propagation
Scientific paper
All-sky imagers at Ny-Ålesund (NYA: 76.5N MLAT), Svalbard, Station Nord (NRD: 81.2N MLAT) and Qaanaaq (NAQ: 85.1N MLAT), Greenland, observed nearly 8 hours of continuous λ630.0 nm airglow patch activity in the nightside polar cap on December 10-11 2007, during solar minimum conditions. When assuming a projection altitude of 250 km, the optical fields of view of the imagers slightly overlap, permitting the registration of individual patches between instruments. Thus the spatio-temporal evolution of a train of patches was observed from near the geomagnetic pole at NAQ into the nightside auroral oval south of NYA, approximately 2000 km distant. Optical data correlated well with other measurements, including GPS TEC and ionosonde plasma density time series. Some of the patches were observed simultaneously with polar cap arcs and had unusual structure consisting of thin, branched bands.
Esposito Raffaele
Holmes Jeremy M.
Pedersen Todd. R.
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