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radar & radio

Detailed image shows sculpted layers of ice at Mars’s south pole.
Posted inNews

The Bumpy Search for Liquid Water at the South Pole of Mars

by Damond Benningfield 8 March 20228 March 2022

Studies since 2018 have provided competing explanations of bright radar reflections from the base of the south polar ice cap.

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.

Two satellite dishes
Posted inEditors' Vox

Expanding the Scope of Radio Science

by Sana Salous 25 January 202214 February 2022

AGU’s Radio Science journal announces an expansion in scope in response to technological developments and welcomes Technical Reports presenting measurements and experimental studies.

The layers of Jupiter’s atmosphere visible to Juno’s microwave radiometer
Posted inResearch Spotlights

A Transition Zone Below Jupiter’s Clouds

by Morgan Rehnberg 12 November 202127 January 2022

The microwave radiometer aboard NASA’s Juno spacecraft reveals the hidden atmospheric circulations at work deep below Jupiter’s colorful clouds.

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 D. J. Wald, V. Quitoriano and O. Dully 22 February 202130 August 2022

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.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
JGR: Solid Earth
“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

EDITORS' HIGHLIGHTS
AGU Advances
“Eminently Complex – Climate Science and the 2021 Nobel Prize”
By Ana Barros

EDITORS' VOX
Perspectives of Earth and Space Scientists
“New Directions for Perspectives of Earth and Space Scientists”
By Michael Wysession


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