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radar & radio

A team of researchers stands in front of an airplane in Antarctica.
Posted inNews

Newly Discovered Lake May Offer a Glimpse into Antarctica’s Past

by Andrew J. Wight 9 June 20229 June 2022

Scientists dive in—metaphorically—to Lake Snow Eagle, only recently revealed through ice-penetrating radar.

A wall of ice looms over an expanse of rocks.
Posted inNews

Impact Structure Hidden Under Arctic Ice Dates to the Paleocene

by Katherine Kornei 13 April 202213 April 2022

Greenland’s Hiawatha impact structure, more than 30 kilometers in diameter, is much older than previously thought, new results suggest.

A blue ring of auroral emission glows above Saturn’s north pole.
Posted inNews

Saturn’s Powerful Winds Explain Changes in the Length of Its Day

by Katherine Kornei 17 March 202221 March 2022

Atmospheric winds moving at more than 7,000 kilometers per hour distort Saturn’s magnetic field, revealing why spacecraft have measured changes in the length of a day on the ringed world.

Image of the center of our galaxy
Posted inNews

With MeerKAT, Astronomers Peer at the Possibilities of Radio Imaging

by Santiago Flórez 11 March 202224 May 2022

Stunning images of the center of the Milky Way showcase technology and techniques that may be a starting point for more discoveries.

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.

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.

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From AGU Journals

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