Multi-Instrument Observations of MSTIDs and Source Determination

Ross Dinsmore, John David Mathews, Anthea Coster, Sumanta Sarkhel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


A multi-day (6-8 May 2013), apparently medium-scale traveling ionospheric disturbance (MSTID) event with an and sim;1 hour period was recorded using both the vertical-looking and steerable Millstone Hill incoherent scatter radar (ISR) systems during quiet geomagnetic activity. The dense network of Global Positioning System (GPS) total electron content (TEC) receivers has allowed the horizontal imaging of this event across a far larger scale than is possible with the ISR(s) alone. This MSTID event was identified in the GPS-TEC dataset on the mesoscale centered at Haystack. However, GPS-TEC imaging also revealed that this event was coherent across the United States. The GPS-TEC imaging also revealed that similar events occurred globally. We conclude that this MSTID event was actually a coherent ionospheric pulsing structure (CIPS) that, when viewed locally, masqueraded as an MSTID event. The GPS-TEC images reveal that, on a global scale, the CIPS were stationary in longitude, but moved southward in the Northern Hemisphere - imaging of the southern hemisphere was not possible. The CIPS originated in high latitudes and at one instance were coherent across 23,000 km. The large-scale coherence, ubiquity, and source location of the CIPS points to an unidentified auroral zone source with sufficient energy to continually force the observed MSTID-like structures.

Original languageEnglish (US)
Title of host publication2018 2nd URSI Atlantic Radio Science Meeting, AT-RASC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9789082598735
StatePublished - Sep 24 2018
Event2nd URSI Atlantic Radio Science Meeting, AT-RASC 2018 - Gran Canaria, Spain
Duration: May 28 2018Jun 1 2018

Publication series

Name2018 2nd URSI Atlantic Radio Science Meeting, AT-RASC 2018


Other2nd URSI Atlantic Radio Science Meeting, AT-RASC 2018
CityGran Canaria

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Signal Processing
  • Electrical and Electronic Engineering
  • Instrumentation


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