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radar & radio

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.

Posted inAGU News

Elliott Receives 2020 John Wahr Early Career Award

by AGU 7 July 202114 April 2022

John R. Elliott received the 2020 John Wahr Early Career Award at AGU’s virtual Fall Meeting 2020. The award recognizes “significant advances in geodetic science, technology, applications, observations, or theory.”

Close-up view of the eye of category 5 Typhoon Maysak as seen from the International Space Station in March 2015
Posted inFeatures

Chasing Cyclones from Space

by C. R. Jackson, T. W. Ruff, J. A. Knaff, A. Mouche and C. R. Sampson 2 June 202126 April 2022

The pioneering use of satellite-based synthetic aperture radar to characterize tropical cyclones in near-real time has provided a crucial new tool with which to forecast powerful storms.

An antenna setup towers over a residential house in Los Angeles, Calif.
Posted inScience Updates

Amateur Radio Operators Help Fill Earthquake Donut Holes

by David J. Wald, V. Quitoriano and O. Dully 22 February 202117 April 2023

Ham radio networks gear up to provide real-time, on-the-ground information about earthquake shaking and damage when other communication pathways are knocked out of commission.

Equipment belonging to the Case Western Reserve University amateur radio club
Posted inFeatures

Ham Radio Forms a Planet-Sized Space Weather Sensor Network

by K. Collins, D. Kazdan and N. A. Frissell 9 February 20216 June 2022

For researchers who monitor the effects of solar activity on Earth’s atmosphere, telecommunications, and electrical utilities, amateur radio signals a golden age of crowdsourced science.

Plot showing measured magnetic field on Juno as a function of frequency and time on 29 May 2019
Posted inEditors' Highlights

Radio on Jupiter, Brought to You by Ganymede

by A. Yau 25 January 202127 January 2022

Another first from NASA’s Juno spacecraft: the detection of Jupiter radio emissions influenced by the moon Ganymede, over a range of about 250 kilometers in the polar region of Jupiter.

Radio towers at the VLF Transmitter Cutler in Maine
Posted inResearch Spotlights

Terrestrial Radio Signals May Suppress High-Energy Electrons

by Morgan Rehnberg 12 October 202018 January 2023

Naval radio signals may cause the formation of a barrier observed during geomagnetic storms that is seemingly impenetrable by relativistic electrons.

Chart showing concurrent detection of streamer corona discharges from space and the ground
Posted inEditors' Highlights

Streamer Corona Discharges in Thunderstorms Detected from Space

by Minghua Zhang 2 September 202027 January 2022

Concurrent detection from space and the ground of blue optical flashes from streamer corona discharges at altitudes between 8.5 and 14 kilometers and radio waves.

The dirigible Italia docked at the base camp in Ny-Ålesund, Svalbard, prior to its crash
Posted inNews

Space Weather Lessons from a 1928 Dirigible Debacle

Rachel Fritts, Science Writer by Rachel Fritts 1 July 202023 January 2023

Analysis of a disrupted SOS signal during an early polar expedition showcases the importance of taking space weather into account when exploring new frontiers.

Orange and brown planet-looking object
Posted inNews

Record-Setting Winds on a Nearby Brown Dwarf

Katherine Kornei, Science Writer by Katherine Kornei 16 April 202024 October 2022

Infrared and radio observations reveal zonal winds moving faster than 2,000 kilometers per hour on a “failed star” in our celestial neighborhood.

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By Muki Haklay

EDITORS' VOX
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“What We Know and Don’t Know About Climate Tipping Elements”
By Seaver Wang

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