Leveraging Geodetic GPS Receivers for Ionospheric Scintillation Science
Name
Radio Science - 2020 - Mrak - Leveraging Geodetic GPS Receivers for Ionospheric Scintillation Science.pdf
Description
Published version
Size
9.59 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Mrak, Sebastijan
Semeter, Joshua
Nishimura, Yukitoshi
Rodrigues, Fabiano S
Coster, Anthea J
Groves, Keith
Date Issued
October 30, 2020
Journal
Radio Science
Publisher
American Geophysical Union
Citation
Mrak, S., Semeter, J., Nishimura, Y., Rodrigues, F. S., Coster, A. J., & Groves, K. (2020). Leveraging geodetic GPS receivers for ionospheric scintillation science. Radio Science, 55, e2020RS007131.
Version
Final published version
Abstract
We demonstrate scintillation analysis from a network of geodetic Global Positioning System (GPS) receivers which provide data at 1-second resolution. We introduce proxy phase (σTEC) and amplitude (SNR4) scintillation indices and validate them against the rate of change of TEC index (ROTI) and S4. Additionally, we validate scintillation observations against a Connected Autonomous Space Environment Sensor scintillation receiver. We develop receiver-dependent scintillation event thresholding using hardware-dependent noise variance. We analyze 6 days adjacent to the 7–8 September 2017 geomagnetic storm, using 169 receivers covering magnetic latitudes between 15° and 65° in the American longitude sector. We leverage the available spatial sampling coverage to construct 2-D maps of scintillation and present episodic evolution of scintillation intensifications during the storm. We show that low-latitude and high-latitude scintillation morphology match well-established scintillation climatology patterns. At midlatitudes, spatiotemporal evolution of scintillation partially agrees with known scintillation patterns. Additionally, the results reveal previously undocumented midlatitude scintillation-producing structures. The results provide an unprecedented view into the spatiotemporal development of scintillation-producing plasma irregularities and provide a resource to further exploit scintillation evolution at large spatial scales.
MIT Department
Haystack Observatory
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1029/2020rs007131
