Physics
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsa21a1526o&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #SA21A-1526
Physics
2400 Ionosphere (6929), 2415 Equatorial Ionosphere, 2439 Ionospheric Irregularities
Scientific paper
The nightglow images of OI135.6-nm from TIMED/GUVI provided the global view of equatorial plasma bubbles (EPBs). The occurrence climatology of EPBs has been investigated by performing the 1-D analysis of TIMED/GUVI data but the 3-D EPB characteristics and their variability have not yet been investigated. This study will demonstrate the capability to extract the 3-D EPB characteristics from the TIMED/GUVI data. EPBs will be detected by applying the adaptive spatial filter and Laplacian of Gaussian kernels to the nighttime TIMED/GUVI disk-scan images The 2-D EPB images on the longitude-latitude coordinate will be retrieved by applying the image processing technique, and then the vertical EPB images will be obtained by projecting them to the apex height. Our database will record the depletion width, depth, length, tilt, etc. for individual EPBs. We will process the GUVI data in 2002 and present the seasonal and longitudinal variability of the EPB characteristics.
Kil Hyosub
Oh Seung Joon
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