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Michael P. Hickey

Editor, JGR: Space Physics

Plot showing the latitudinal profile of F-region meridional wind as a function of local time for the day of 4 January 2019.
Posted inEditors' Highlights

Thermospheric Cross-Polar Winds Observed to Unexpectedly Stall

by Michael P. Hickey 7 October 202113 October 2021

Observations of cross-polar cap neutral winds near 240 km altitude stalling over short distances in the midnight sector near Poker Flat, Alaska, challenge the standard view of high-latitude dynamics.

Two plots showing the Cumulative probability of scintillation exceeding a certain value versus geomagnetic activity in July-December 2017.
Posted inEditors' Highlights

The Auroral E-region is a Source for Ionospheric Scintillation

by Michael P. Hickey 9 August 202111 August 2022

Observations reveal a connection between auroral particle precipitation and scintillation, indicating that the ionospheric E-region is a key source region for phase scintillation at auroral latitudes.

Plot showing K-H waves-related magnetic field variations correlated with the local geomagnetic B variations at Neumayer Station III.
Posted inEditors' Highlights

Satellite Data Reveal Magnetospause K-H Waves Impact Auroras

by Michael P. Hickey 5 August 202128 September 2021

Analysis of multiple satellite data has revealed a striking connection between K-H waves on the magnetopause, surface waves in the hot zone near the plasmapause, and auroral undulations.

Two plots showing percent changes in TIME-GCM zonally averaged [O+] and [H+] as a function of latitude and altitude in the Northern Hemisphere between the “disturbed” and “pre-disturbance” time periods in 2012–2013
Posted inEditors' Highlights

Stratospheric Weather Impacts Light Species at Great Heights

by Michael P. Hickey 14 December 202016 March 2023

Sudden stratospheric warmings in the high latitude wintertime can drive changes in light species (H, He and O) all the way though the thermosphere, likely influencing ion densities in the exosphere.

Plot showing the monthly averaged column abundances of Nickel as a function of season and month, simulated by the WACCM-Ni model
Posted inEditors' Highlights

First Model of Meteoric Nickel in the Upper Atmosphere

by Michael P. Hickey 31 August 202016 March 2023

A layer of nickel of cosmic origin, which exists between 80 and 110 km high in Earth’s atmosphere, has been modeled for the first time, including dynamics and complex neutral and ion chemistry.

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