CIRES Research Scientist III
- Ph.D., Earth and Space Sciences and Program on Climate Change, University of Washington
- M.S., Earth and Environmental Sciences, University of Pennsylvania
- B.A., Geology, Carleton College
My research integrates observations, paleoclimate records, and climate model experiments of past and present climate to make informed predictions of future climate impacts. I have long been interested in the climate dynamics of the Antarctic and Southern Ocean region, and the role of this region in the global climate system. It is a fascinating and mysterious region, which could wind up being recognized as (or more) important for climate than better-observed and better-understood regions like the North Atlantic and Tropical Pacific. We already know that it is of primary importance in heat and carbon uptake, sea level, and climate sensitivity. What’s next? Perhaps Earth System Predictability. Perhaps a lifesaving climate solution. I am interested in studying the Arctic as well, and in understanding the physical mechanisms connecting both polar regions with the tropics and mid-latitudes.
To ensure that the science I contribute to benefits society, I wil continue doing what I can to demystify climate data from observations and climate models. Such data are incredibly valuable for research, planning, and adaptation, yet are confusing to sort out and make sense of. In addition to technological progress and open data, we need a transparent and open discussion of the strengths, limitations, and appropriate usage contexts of the data. Most importantly, rewarding and stable career opportunities in climate science, and the flow of scientifically grounded information to society, have to be available to and within the reach of individuals from less privileged backgrounds.
I maintain a visiting scientist appointment at the National Center for Atmospheric Research (NCAR), where I am engaged in the analysis and evaluation of climate models.
If any of my interests align with yours, and you have an idea for a collaborative research proposal, please get in touch.
I have leadership roles in these projects:
- Uncertainty and Mechanisms of Antarctica's Changing Snowfall and its Role in Sea Level Change (UMACS), funded by NSF. This top-ranked funded proposal has supported myself, a SOARS protégé (twice), a postdoc, two graduate students, and the former PI (now leading climate analytics at McKinsey). The team has published papers on the performance of CESM2 in Antarctica, the performance of CESM2 with a high-resolution grid in Antarctica, and atmospheric rivers in Antarctica, with more to come.
- Assessing the Causal Influence of Atmospheric Opacity and Sea Ice on Arctic Warming in a Novel Circulation-controlled Framework, funded by NSF.
- The Climate Data Guide, which is exploring new directions and seeking new partners. Representing decades' worth of accumulated climate data expertise, the website reaches an ever-growing audience of millions in the global south and global north, helping to broaden access to essential climate data and knowledge networks.
I have been a lead research mentor in SOARS and have successfully raised funds for this program. I enjoy working with postdocs in programs like CIRES Visiting Fellows and NOAA Climate and Global Change Fellows.
Selected media coverage:
Vox: It’s even hot in Antarctica, where it’s winter
NCAR News: New Help for navigating climate data
NBC News: Comprehensive study of West Antarctic Ice Sheet finds collapse may be unavoidable (I do not 100% agree with the headline. Words like “unavoidable” and “inevitable” do not fit the data and should not be used in my professional opinion. Emissions cuts would matter for the future of the West Antarctic Ice Sheet; we do not yet know on what timescale. The most relevant questions are, "How much?" and "How fast?" I post my take on this and other papers on LinkedIn.)
Yale Climate Connections: How this month produced a mind-boggling warm-up in eastern Antarctica (and the Arctic)
Weather Underground: Antarctic sea ice dips to record-low extent for January
AAAS: Antarctic climate: Short-term spikes, long-term warming linked to tropical Pacific
CNN: Warmest Arctic temperatures for 2000 years, says new study
ScienceDaily: Climate models overheat Antarctica, new study finds
Datasets most closely related to my work:
List of various climate variability and change experiments with CESM1 and CESM2, most of which I have used in my research.
Research CategoriesAtmosphere, Climate and Weather, Cryosphere, Oceans
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CECA connects and creates a supportive environment for graduate students and postdocs who come from various academic units to do research in CIRES.