J. Eric Nielsen

TL;DR: In this paper, the authors investigated the impact of ozone recovery on the Southern Hemisphere (SH) climate using 21st century simulations with a chemistry climate model (CCM) and found that ozone is expected to return to higher values with the disappearance of the Antarctic ozone hole.

TL;DR: In this article, the simulation of major midwinter stratospheric sudden warmings (SSWs) in six stratosphere-resolving general circulation models (GCMs) is examined, and the results indicate that GCMs are capable of quite accurately simulating the dynamics required to produce SSWs, but with lower frequency than the climatology.

TL;DR: The primary uses of satellite data for air quality applications are reviewed, some background information on satellite capabilities for measuring pollutants are provided, the many resources available to the end-user for accessing, processing, and visualizing the data are discussed, and answers to common questions in plain language are provided.

TL;DR: Ozone data from Ozonesonde data from Houston on 19 and 20 July showed elevated ozone at the surface (>125 ppbv) and even higher concentrations aloft (∼150 ppbV of ozone found 2 km above the surface) as compared to more typical profiles as discussed by the authors.

TL;DR: In this article, the relationship between the stratospheric thermal structure and ozone distribution is explored in the Goddard Earth Observing System chemistry-climate model (CCM), where ozone and temperature fields are validated using estimates based on observations.