Visualization of ULF waves in SuperDARN data

Pavlo V. Ponomarenko, Frederick W. Menk, Colin L. Waters

doi:10.1029/2003gl017757

Visualization of ULF waves in SuperDARN data

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Pavlo V. Ponomarenko

School of Mathematical and Physical Sciences University of Newcastle NSW Australia
Frederick W. Menk

School of Mathematical and Physical Sciences University of Newcastle NSW Australia
Colin L. Waters

School of Mathematical and Physical Sciences University of Newcastle NSW Australia

書誌事項

公開日: 2003-09

権利情報

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

DOI

10.1029/2003gl017757

公開者: American Geophysical Union (AGU)

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説明

<jats:p>Measurements of ionospheric <jats:bold>E</jats:bold> × <jats:bold>B</jats:bold> drifts obtained with HF radars from the SuperDARN (Super Dual Auroral Radar) Network sometimes show signatures of ULF (few mHz) waves. We present a new data display technique that facilitates the detection of ULF waves in both ground and sea scatter returns. Statistical study of high time resolution data from the SuperDARN TIGER radar in Tasmania, Australia, revealed that ULF wave signatures occur on an everyday basis with ground scatter accounting for about 60% of wave events. About half of these events exhibit high coherence across large spatial distances and are associated with ULF pulsations recorded by a ground magnetometer. These results show that SuperDARN radars may be used to routinely monitor ULF waves in the high‐latitude ionosphere.</jats:p>