water cycle

A new study of ocean salinity finds substantial amplification of the global water cycle

Oct. 2, 2020

Water and its movements within or between atmosphere, land, and ocean defines the global water cycle and is central to the climate system.

research plane

Volcanic ash may have a bigger impact on the climate than we thought

Sept. 18, 2020

When volcanos erupt, these geologic monsters produce tremendous clouds of ash and dust—plumes that can blacken the sky, shut down air traffic and reach heights of roughly 25 miles above Earth's surface.


Influence of roadway emissions on near-road PM2.5: Monitoring data analysis and implications

Sept. 4, 2020

We examined particulate matter 2.5 µm in aerodynamic diameter or smaller (PM2.5) concentrations measured in 2017 from 48 near-road monitoring sites across the U.S.


The Lightning and Dual-Polarization Radar Characteristics of Three Hail-Accumulating Thunderstorms

Aug. 5, 2020

To better understand the characteristics of single storms that are useful to quantify or predict hail accumulations, this study uses lightning and dual-polarization radar data to characterize hail accumulations from three storms that occurred on the same day along the Colorado–Wyoming Front Range.

atoc logo

Graduate Application Fee Waiver

Aug. 4, 2020

ATOC understands that the application fee presents a challenge for some applicants. The department is committed to providing educational opportunities for a diverse range of applicants regardless of their financial situations.

ATOC logo

CU Boulder #1 in atmospheric sciences in 2020 global university rankings

July 30, 2020

CU Boulder is ranked #1 in Atmospheric Science by ShanghaiRanking Consultancy's 2020 Global Ranking of Academic Subjects (GRAS) for the 3rd year in a row!

sara sanchez

Dr. Sara Sanchez joins ATOC

July 6, 2020

The Office of Postdoctoral Affairs (OPA) is excited to announce the 2021 recipients of the Chancellor’s Postdoctoral Fellowship for Diversity.

ocean sink

External Forcing Explains Recent Decadal Variability of the Ocean Carbon Sink

June 3, 2020

The ocean has absorbed the equivalent of 39% of industrial‐age fossil carbon emissions, significantly modulating the growth rate of atmospheric CO2 and its associated impacts on climate.

Brian Toon

Brian Toon selected for Graduate School’s outstanding 2019-20 mentor awards

May 12, 2020

The Graduate School is pleased to recognize our dedicated faculty members who received this year’s outstanding faculty mentor awards.

Gina JOzef

Arctic Research Soars to New Heights

May 11, 2020

Radiance Calmer holds the wide wings of a drone in place on its launcher, scanning the blue Boulder sky for potential obstacles.