Field‐aligned 777.4‐nm composite airglow images of equatorial plasma depletions

J. J. Makela, M. C. Kelley

doi:10.1029/2003gl017106

Field‐aligned 777.4‐nm composite airglow images of equatorial plasma depletions

DOI Web Site Web Site 被引用文献6件

J. J. Makela

E. O. Hulburt Center for Space Research Naval Research Laboratory Washington District of Columbia USA
M. C. Kelley

School of Electrical and Computer Engineering Cornell University Ithaca New York USA

書誌事項

公開日: 2003-04

権利情報

http://onlinelibrary.wiley.com/termsAndConditions#vor

DOI

10.1029/2003gl017106

公開者: American Geophysical Union (AGU)

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説明

<jats:p>We present a powerful tool to analyze two‐dimensional field‐aligned images of equatorial plasma depletions taken from mid‐latitudes. By shifting each individual image by the sum of the longitudinal offsets obtained by performing a cross‐correlation between successive images, a single composite image can be formed for the entire night. It is shown that these field‐aligned composite images give information on the observation times of the depletions associated with spread‐<jats:italic>F</jats:italic> as they pass by Hawaii. In addition, they can be used to estimate the formation time and location of the depletions to the west of the observing site. This technique also yields estimates of the eastward velocity and velocity shear of the depletions. We suggest that the information gained by using these images can be used to predict satellite scintillations at stations to the east of the observing station.</jats:p>