everything atmospheric Archives - Page 34 of 93

Aerial view of a large wetland area, with part of an airplane wing in the foreground

Tropical Wetlands Emit More Methane Than Previously Thought

by Rachel Fritts 13 September 20225 October 2022

Climate models could be vastly underestimating methane emissions from the world’s tropical wetlands, according to observational surveys of wetlands in Zambia.

Editors' Highlights

The Long-Lasting Impact of a Nuclear War on the Ocean

by Nicolas Gruber 12 September 202227 September 2022

Model simulations of the impact of a large-scale nuclear war reveal long lasting effects with much of the ocean not returning to pre-war levels despite the cessation of the initial cooling.

Diagram showing the global mean full-cycle methane budget.

Editors' Highlights

A Significant Advancement in Modeling the Global Methane Cycle

by Jiwen Fan 8 September 202213 March 2023

The capability to fully model the global methane cycle advances the international climate science community’s ability of providing essential evidence to underpin climate mitigation policy.

A tall jet of lightning extends upward from a bright thundercloud in front of a dark starry sky. The gigantic jet is bright white at the base and then transitions to blue and then to red as it reaches upward. The top of the jet is wider than the base.

News

Gigantic Jet of Lightning Mapped over Oklahoma

by Kimberly M. S. Cartier 7 September 20227 September 2022

The most powerful gigantic jet ever recorded fortuitously appeared over a sensor array in Oklahoma, enabling scientists to map the structure of the phenomenon for the first time.

Side-by-side images show fish-eye-style photographs of a starry evening sky illuminated by different subauroral events. The left image shows a SAR arc, a reddish arc that spans the sky. Beneath the arc the sky transitions from bright green at the horizon to purple and is partially obscured by clouds. The right image shows a STEVE phenomenon. Part of the red SAR arc is still visible but is much fainter and more of a pink color than its original red. The green and purple sky is more muted in color, and more stars and the band of the Milky Way are now visible. In both images, the silhouette of some shrubs is visible.

Research Spotlights

From SAR Arc to STEVE: An Atmospheric Evolution

by Alexandra K. Scammell 6 September 20227 September 2022

A new study reports the first observation of a stable auroral red arc evolving into a strong thermal emission velocity enhancement during a geomagnetic storm.

One of two fire-generated vortices at the 2021 Dixie Fire

News

Chasing Fire Tornadoes for Science

by Emily Shepherd 6 September 20226 September 2022

Recent research suggests fire-generated vortices are always present during wildfires.

An artist’s rendering of North America in the weeks following the Chicxulub impact shows freezing conditions and skies hazy with sulfate aerosols.

Science Updates

A Post-Impact Deep Freeze for Dinosaurs

by Aubrey Zerkle 2 September 202222 February 2023

New research supports the hypothesis that dinosaurs were done in by climate change after an asteroid impact kicked up a massive plume of sulfur gases that circled the globe for several decades.