Gretchen Keppel-Aleks

Carbon Cycle Research Group

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Atmospheric greenhouse gases provide the largest anthropogenic climate forcing. The concentration of CO2 and other greenhouse gases will change over the next century, due to both human activity and feedbacks in the carbon cycle. In particular, feedbacks between climate and terrestrial ecosystem carbon storage will have large effects on the atmospheric composition and hence radiative forcing.

Our research group uses atmospheric and remote sensing observations to develop an understanding of processes that govern the exchange of carbon among reservoirs in the atmosphere, oceans, and terrestrial ecosystems. We employ observations to test and improve process-based models ranging in complexity from simple box models to Earth System Models.


July 2017

Dr. Keppel-Aleks presents on the use of satellite CO2 data for evaluating emissions at a meeting on Next Generation Carbon Data in Norwich, UK.

June 2017

Dr. Keppel-Aleks presents on links between Pacific and Atlantic climate oscillations on tropical carbon cycling at the CESM Annual Meeting in Boulder.

The group bids a fond farewell and best wishes to Dr. Jessica Liptak, who is moving on to an exciting new job as a research computing specialist at Engility/GFDL in Princeton! We'll miss you, Jessica!

May 2017

Dr. Keppel-Aleks and PhD student Zach Butterfield are headed to central Iowa to set up Photospec spectrometers to measure chlorophyll fluorescence in corn and soy fields as part of a NASA-funded research campaign in collaboration with Caltech and UCLA.

Congratulations to PhD student Anthony Torres on winning a prestigious NASA NESSF graduate fellowship!

Congratulations to PhD students Samantha Basile and Anthony Torres on passing Phase 2 of their candidacy exams!

April 2017

Dr. Keppel-Aleks is looking for a new postdoctoral scholar to work on a NASA-funded project on high latitude carbon cycling as part of the ABOVE campaign.

March 2017

Dr. Keppel-Aleks leads a break-out session on how we can use OCO-2 observations to develop a better understanding of global carbon dynamics at the NACP meeting.

Postdoctoral scholar Jessica Liptak's paper on long-term drivers of CO2 amplification is published in Biogeosciences!

Dr. Keppel-Aleks presents at the CESM Biogeochemistry Working Group meeting in Boulder on diurnal carbon cycling in CLM.

February 2017

Undergraduate researcher Emily Gargulinski earns the CLASP Distinguished Achiement Award! Congratulations!

Dr. Keppel-Aleks and Dr. Allison Steiner are looking for a postdoctoral scholar to work on a NASA-funded project to use SMAP soil moisture observations to study links between the water, energy, and carbon cycles.

Dr. Keppel-Aleks speaks on a panel at the AAAS meeting in Boston on Global Climate Science Imperatives in a Post-Paris Agreement World

I am always interested in hearing from bright, motivated students at the undergraduate and graduate level. Please email me if you are interested in carbon cycle science at UM.