Air-sea coupling shapes North American hydroclimate response to ice sheets during the Last Glacial Maximum

Dec. 7, 2021

US West Coast rainfall was VERY different during the last ice age, why? We use new CESM experiments to find out! Take home point - North Pacific ocean temps, not ice sheets directly, responsible for hydroclimate shifts.

model sampled at Mauna Loa

On the Detection of COVID-Driven Changes in Atmospheric Carbon Dioxide

Dec. 7, 2021

COVID pandemic lockdowns suddenly slowed the rate at which we burned fossil fuels and released carbon dioxide into the atmosphere, yet we cannot find any significant reductions in the growth of carbon dioxide in the atmosphere from our measurements.

slope vs bandwith

The role of bandwidth in setting the breaking slope threshold of deep-water focusing wave packets

Dec. 7, 2021

Using numerical simulations and wave tank observations, we found that both the slope and bandwidth of a wave packet can determine if a deep water ocean wave breaks or not.


The Influence of Ocean Topography on the Upwelling of Carbon in the Southern Ocean

Nov. 4, 2021

The physical circulation of the Southern Ocean sets the surface concentration and thus air-sea exchange of urn:x-wiley:00948276:media:grl63112:grl63112-math-0001.


My Manabe Begonia

Oct. 18, 2021

Today, the Nobel Prize in Physics was awarded to Dr. Syukuro “Suki” Manabe. I cannot think of a more deserving physicist. I am not alone.

ice sheets

Scientists studying polar ice melt receive $13 million from NSF

Oct. 1, 2021

CU Boulder joins interdisciplinary team of researchers aiming to understand the future of these imperiled regions of the world.


The cooling of light rains in a warming world

Oct. 1, 2021

Recent changes to how clouds are represented in global models, especially over the Southern Ocean, resulted in increased climate warming.

map of Puerto Rico

Quantifying the Solar Energy Resource for Puerto Rico

Oct. 1, 2021

After Hurricane Maria, multiple U.S. Department of Energy laboratories studied the state of the electric grid in Puerto Rico and analyzed grid resilience and grid integration of renewable energy.


Coupled Climate Responses to Recent Australian Wildfire and COVID-19 Emissions Anomalies Estimated in CESM2

Oct. 1, 2021

The climate effects of COVID-19 restrictions and the 2019/20 Australian bushfire season are simulated in 50-member CESM2 ensembles. Australian bushfires are found to have had a bigger impact on global climate than pandemic lockdowns and may have influenced ENSO.

climate data

The Importance of Weather and Climate to Energy Systems: A Workshop on Next Generation Challenges in Energy–Climate Modeling

Aug. 19, 2021

Over 80 international participants, representing weather, climate, and energy systems research, joined two 4-h remote sessions to highlight and prioritize ongoing and future challenges in energy–climate modeling.