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Earth and Space Science

A selfie of NASA’s Curiosity rover, in the northwestern part of Gale crater
Posted inResearch Spotlights

Scientists Turn Back Time to Track Methane Emissions on Mars

by JoAnna Wendel 14 January 202224 February 2022

Period spikes of methane on Mars could originate inside Gale crater, where NASA’s Curiosity rover is currently exploring.s

Table showing percentage of total variance explained by each of the first five principal components by Northern Hemisphere circumpolar vortex (NHCPV) area, NHCPV circularity ratio (Rc), and five atmospheric teleconnection indices.
Posted inEditors' Highlights

Polar Vortex Linked to Atmospheric Circulation at Daily Scale

by Jonathan H. Jiang 13 October 202129 March 2022

A simplified representation of polar vortex at monthly scale was revised using a new method, and its daily association with air-sea teleconnections was analyzed to study weather impacts.

Map of the Babai river basin in Nepal showing location of water level and streamflow measuring stations.
Posted inEditors' Highlights

Satellite Estimates for Hydroclimatic Extremes

by Jonathan H. Jiang 20 September 202128 September 2021

A new study corrects poor-performing satellite-based rainfall estimates with gauge data and also fills gauge data gaps using well-performing satellite-based rainfall estimates.

Graphic showing the path of GOLD over the Americas measuring the emission from atomic oxygen in an excited state at nighttime.
Posted inEditors' Highlights

GOLD Sees Quasi-Stationary Waves in the Nighttime Ionosphere

by Astrid Maute 12 March 202111 March 2021

The wave-like features in the pre-midnight ionosphere are not moving, vary strongly from day-to-day, and are often associated with the equatorial plasma bubbles, but their origin is still unknown.

Map of northern Eurasia showing long-term trend of wintertime Turbulence Index 1
Posted inEditors' Highlights

Global Warming Intensifies Turbulence Over Northern Eurasia

by Jonathan H. Jiang 24 February 202122 February 2021

A significant increasing trend of turbulence in upper atmosphere over northern Eurasia is attributed to intense anthropogenic activities.

Plots showing a visual comparison of spatial pattern of snowfall rate obtained from four different sources
Posted inEditors' Highlights

Using Machine Learning to Detect and Estimate Global Snowfall

by Jonathan H. Jiang 2 December 202030 November 2020

Machine learning is used to retrieve global snowfall occurrence and rate from satellite-based passive microwave sounder observations, trained by snowfall data from a high-quality space borne radar.

Close-up satellite view of carbon dioxide ice in Mars’s south polar cap
Posted inResearch Spotlights

A Precise Mosaic View of Mars’s South Pole

by Sarah Stanley 2 November 2020

A new workflow improves the process of creating massive, accurate mosaics from spacecraft-captured images of a planet’s surface.

Plot showing distribution of iron species at three locations
Posted inEditors' Highlights

Zero-valent Iron in the Oxidizing Atmosphere?

by Jonathan H. Jiang 26 October 20205 May 2022

A comparative study of urban, semi-urban, and rural sites reveals that the species of atmospheric iron varies depending on location.

Image showing particles being ejected from the asteroid Bennu on 6 January 2019
Posted inEditors' Vox

Up Close with an Active Asteroid

by C. W. V. Wolner, C. W. Hergenrother and D. S. Lauretta 9 September 20202 February 2022

A new journal special collection investigates the ejection of particles from the asteroid Bennu and the implications of these observations for asteroid science.

Schematic of the mechanical design of the Heatflow and Physical Properties Package radiometer
Posted inEditors' Highlights

Insights from Calibration of the HP³ Radiometer on InSight

by Kristy Tiampo 27 July 202022 June 2022

A detailed analysis of Heatflow and Physical Properties Package Radiometer on the Mars InSight lander, including changing instrument sensitivity and calibration coefficients.

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From AGU Journals

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Reviews of Geophysics
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