TY - JOUR
T1 - First Observations of Large Scale Traveling Ionospheric Disturbances Using Automated Amateur Radio Receiving Networks
AU - Frissell, Nathaniel A.
AU - Kaeppler, Stephen R.
AU - Sanchez, Diego F.
AU - Perry, Gareth W.
AU - Engelke, William D.
AU - Erickson, Philip J.
AU - Coster, Anthea J.
AU - Ruohoniemi, J. Michael
AU - Baker, Joseph B.H.
AU - West, Mary Lou
N1 - Funding Information:
The authors gratefully acknowledge the support of United States National Science Foundation (NSF) Grants AGS‐2045755 and AGS‐2002278 and NASA Grants 80NSSC21K0002 and 80NSSC21K1772. We are especially grateful to the amateur radio community who voluntarily produced and provided the HF radio observations used in this presentation, especially the operators of the reversebeacon.net , wsprnet.org , pskreporter.info, and hamcall.net . Blackstone SuperDARN data are made available with support from NSF AGS‐1935110. This material is based upon work supported by the Poker Flat Incoherent Scatter Radar which is a major facility funded by the NSF through cooperative agreement AGS‐1840962 to SRI International. Algorithms used to calculate the electric field and Joule heating rates were developed under NSF AGS‐1853408 and AGS‐1552269. GNSS TEC data products and access through the Madrigal distributed data system are provided to the community by the Massachusetts Institute of Technology under support from NSF grant AGS‐1952737. Individual contributors of GNSS data are listed in the Open Research section. We gratefully acknowledge the SuperMAG collaborators ( https://supermag.jhuapl.edu/info/?page=acknowledgement ) who contributed to the SuperMAG database (Gjerloev, 2012 ) and the SuperMAG SME(r) indices (Newell & Gjerloev, 2011a , 2011b ). NAF thanks Rachel Frissell, Bill Liles, Ethan Miller, and Dev Raj Joshi for helpful discussions.
Publisher Copyright:
© 2022. The Authors.
PY - 2022/3/16
Y1 - 2022/3/16
N2 - We demonstrate a novel method for observing Large Scale Traveling Ionospheric Disturbances (LSTIDs) using high frequency (HF) amateur radio reporting networks, including the Reverse Beacon Network (RBN), Weak Signal Propagation Reporter Network (WSPRNet), and PSKReporter. LSTIDs are quasi-periodic variations in ionospheric densities with horizontal wavelengths >1,000 km and periods between 30 and 180 min. On Nov 3, 2017, LSTID signatures were observed simultaneously over the continental United States in amateur radio, SuperDARN HF radar, and GNSS Total Electron Content with a period of ∼2.5 hr, propagation azimuth of ∼163°, horizontal wavelength of ∼1680 km, and phase speed of ∼1,200 km hr−1. SuperMAG SME index enhancements and Poker Flat Incoherent Scatter Radar measurements suggest the LSTIDs were driven by auroral electrojet intensifications and Joule heating. This novel measurement technique has applications in future scientific studies and for assessing the impact of LSTIDs on HF communications.
AB - We demonstrate a novel method for observing Large Scale Traveling Ionospheric Disturbances (LSTIDs) using high frequency (HF) amateur radio reporting networks, including the Reverse Beacon Network (RBN), Weak Signal Propagation Reporter Network (WSPRNet), and PSKReporter. LSTIDs are quasi-periodic variations in ionospheric densities with horizontal wavelengths >1,000 km and periods between 30 and 180 min. On Nov 3, 2017, LSTID signatures were observed simultaneously over the continental United States in amateur radio, SuperDARN HF radar, and GNSS Total Electron Content with a period of ∼2.5 hr, propagation azimuth of ∼163°, horizontal wavelength of ∼1680 km, and phase speed of ∼1,200 km hr−1. SuperMAG SME index enhancements and Poker Flat Incoherent Scatter Radar measurements suggest the LSTIDs were driven by auroral electrojet intensifications and Joule heating. This novel measurement technique has applications in future scientific studies and for assessing the impact of LSTIDs on HF communications.
KW - GNSS TEC
KW - LSTID
KW - SuperDARN
KW - Traveling ionospheric Disturbance
KW - amateur radio
KW - midlatitude ionosphere
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U2 - 10.1029/2022GL097879
DO - 10.1029/2022GL097879
M3 - Article
AN - SCOPUS:85126601453
SN - 0094-8276
VL - 49
JO - Geophysical Research Letters
JF - Geophysical Research Letters
IS - 5
M1 - e2022GL097879
ER -