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space weather (hazard)

Chart showing polar cap index values for four days around the St Patrick’s Day storm of 2015.
Posted inEditors' Highlights

Watching the Substorms Grow

by Michael A. Hapgood 24 May 20222 August 2022

Updated procedures enable consistent use of a wide network of polar magnetometers to monitor energy flow into the tail of Earth’s magnetosphere during the growth phase of substorms.

An image of the Sun showing an eruption of solar material from the Sun’s left side.
Posted inNews

Chinese-Led Solar Research Is Looking Bright

Katherine Kornei, Science Writer by Katherine Kornei 24 May 202210 March 2023

With new missions underway and planned, China is stepping up to observe our nearest stellar neighbor.

Figure 2 from the paper, showing a time series graph of amateur radio observations over the Continental United States and four maps showing data at selected universal times.
Posted inEditors' Highlights

Amateur Radio Observations Help Monitor Space Weather

by Gang Lu 17 May 20227 September 2022

Amateur radio observations provide a new method for studying large-scale ionospheric disturbances and HF communication impacts, and are important applications in ionospheric space weather monitoring.

An illustration of the Solar Orbiter spacecraft near the Sun.
Posted inScience Updates

A New Journey Around (and Around) the Sun

by Daniele Telloni, Francesco Valentini and Raffaele Marino 25 February 202231 January 2023

The Solar Orbiter just completed its commissioning phase while en route to the Sun. It has already provided valuable looks at solar campfires and Venus’s magnetic fields, and it promises much more.

Example of how, given the presence of aurora, an over-the-horizon radar based in Scotland might be used to track an aircraft at 10 km altitude in a region to the north.
Posted inEditors' Highlights

Can Aurora Enhance Radar Monitoring of Arctic Aviation?

by Michael A. Hapgood 2 February 202215 March 2022

Enhanced E-region ionization produced by the aurora can be used to reflect signals from over-the-horizon radars and thus enable those radars to better monitor aviation in Arctic regions.

A layer of charged particles, known as the ionosphere, surrounds Earth, shown in purple (not to scale) in this image.
Posted inResearch Spotlights

A Step Toward Making GPS More Resilient to Space Weather

Sarah Stanley, Science Writer by Sarah Stanley 5 October 202113 October 2021

Researchers have developed a new mathematical model to more accurately capture how irregularities in Earth’s atmosphere interrupt signals from Global Navigation Satellite Systems.

Artist rendering of magnetic reconnection taking place in the Earth's magnetosphere
Posted inEditors' Vox

Hidden Atmospheric Particles Sculpt Near-Earth Space Environment

by S. Toledo, M. André, N. Aunai, C.R. Chappell, J. Dargent, S.A. Fuselier, A. Glocer, D.B. Graham, S. Haaland, M. Hesse, L.M. Kistler, B. Lavraud, W. Li, T. E. Moore, P. Tenfjord and S.K. Vines 22 September 202118 July 2023

Charged particles escape our atmosphere following Earth’s magnetic field and constitute a main source of matter that modulates Sun-Earth interactions.

Researchers present a new technique for estimating magnetosphere-ionosphere interactions at Earth’s poles.
Posted inResearch Spotlights

Filling the Gaps in the SuperDARN Archive

Kate Wheeling, freelance science writer by Kate Wheeling 13 September 202121 October 2021

Researchers present a new pattern-finding technique to better estimate missing data on ionospheric plasma velocities.

Plot showing normalized neutron rates recorded during the space weather events in September 2017.
Posted inEditors' Highlights

Looking Down to See Upwards

by Michael A. Hapgood 24 August 202113 October 2021

Hydrological observations of cosmic ray neutrons scattered by water in soil can also provide information on space weather events such as Forbush decreases and ground level enhancements.

Posted inAGU News

Tamas I. Gombosi Receives 2020 John Adam Fleming Medal

by AGU 19 May 202128 October 2021

Tamas I. Gombosi was awarded the 2020 John Adam Fleming Medal at the virtual AGU Fall Meeting in December. The medal is for “original research and technical leadership in geomagnetism, atmospheric electricity, aeronomy, space physics, and/or related sciences.”

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