Application of the Linear Prediction filters in equatorial electrojet studies |
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Authors: | G K Rangarajan |
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Institution: | (1) Indian Institute of Geomagnetism, Colaba, 400 005 Bombay, India |
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Abstract: | Wiener filters are derived from the horizontal field data of two adjacent equatorial electrojet stations, Adis Ababa and Trivandrum
from several sequences of quiet days. The time invariant property of the filter is established and the filter is applied to
conditions marked by afternoon counter electrojet events. The prediction efficiency is shown to be consistently high. Possible
uses of this technique in studies related to generating mechanisms of counter electrojet events and the day-to-day variability
in electrojet currents are indicated. Inter-relationships and day-to-day variability of different components of the fields
at the two stations are highlighted. |
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Keywords: | Linear prediction filters equatorial electrojet counter electrojet |
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