Comparison of the orientation of small-scale electron density irregularities and F region plasma flow direction
Results are shown from an experimental campaign where satellite scintillation was observed at three sites at high latitudes and, simultaneously, the F region plasma flow was measured by the nearby EISCAT incoherent scatter radar. The anisotropy parameters of field-aligned irregularities are determin...
Published in: | Annales Geophysicae |
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Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2000
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Subjects: | |
Online Access: | https://doi.org/10.1007/s00585-000-0918-9 https://doaj.org/article/5e0ff3e0f7d54943814077847917ec56 |
Summary: | Results are shown from an experimental campaign where satellite scintillation was observed at three sites at high latitudes and, simultaneously, the F region plasma flow was measured by the nearby EISCAT incoherent scatter radar. The anisotropy parameters of field-aligned irregularities are determined from amplitude scintillation using a method based on the variance of the relative logarithmic amplitude. The orientation of the anisotropy in a plane perpendicular to the geomagnetic field is compared with the direction of F region plasma flow. The results indicate that in most cases a good agreement between the two directions is obtained. Key words: Ionosphere (auroral ionosphere; ionospheric irregularities) |
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