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Articles by Ryan Abernathey
Ocetrac
Published January 24, 2025 | Version v0.1.5 Software Open What's Changed Updating libraries Adding in JTech paper link by @CassiaCai in https://github.com/ocetrac/ocetrac/pull/38 Clarify meaning of radius and min_size_quartile in docstrings by @hdrake in https://github.com/ocetrac/ocetrac/pull/37 New Contributors @rabernat made their first contribution in https://github.com/ocetrac/ocetrac/pull/28 @cohenjt made their first contribution in https://github.com/ocetrac/ocetrac/pull/33 @CassiaCai...
Responsibility and Authority-Academia vs. Startup
This is a short personal blog post with some reflections on my first four months as a startup founder. It’s mostly relevant to my readers from academia. I have been a professor at Columbia since 2013, and I got tenure in 2019. My lab, the Ocean Transport Group, studies the physical oceanography of how stuff moves around the ocean and how this transport influences Earth’s large-scale climate and ecosystems. I love this research, and I love my colleagues, collaborators and students.
Pangeo Forge: A New Integrated Platform for Analysis-Ready, Cloud Optimized Data Production
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Future Global Convective Environments in CMIP6 Models
Abstract The response of severe convective storms to a warming climate is poorly understood outside of a few well studied regions. Here, projections from seven global climate models from the CMIP6 archive, for both historical and future scenarios, are used to explore the global response in variables that describe favorability of conditions for the development of severe storms.
Vertical eddy iron fluxes support primary production in the open Southern Ocean
Abstract The primary productivity of the Southern Ocean ecosystem is limited by iron availability. Away from benthic and aeolian sources, iron reaches phytoplankton primarily when iron-rich subsurface waters enter the euphotic zone. Here, eddy-resolving physical/biogeochemical simulations of a seasonally-forced, open-Southern-Ocean ecosystem reveal that mesoscale and submesoscale isopycnal stirring effects a cross-mixed-layer-base transport of iron that sustains primary productivity.
The Scientific Paper Is Outdated
Special Reports For the sake of research, their careers, and their mental health, scientists should spend more time developing software. By Ryan Abernathey February 16, 2020 Premium content for subscribers. Subscribe Today For the sake of research, their careers, and their mental health, scientists should spend more time developing software. !-->
Strengthening tropical Pacific zonal sea surface temperature gradient consistent with rising greenhouse gases
Abstract As exemplified by El Niño, the tropical Pacific Ocean strongly influences regional climates and their variability worldwide1,2,3. It also regulates the rate of global temperature rise in response to rising GHGs4. The tropical Pacific Ocean response to rising GHGs impacts all of the world’s population. State-of-the-art climate models predict that rising GHGs reduce the west-to-east warm-to-cool sea surface temperature gradient across the equatorial Pacific5.
I Got Tenure, But Science is Still Broken
Last week I learned that President Bollinger approved my tenure at Columbia University, where I am an associate professor in the Department of Earth & Environmental Sciences. Of course this comes as a huge relief. The tenure track process — being judged critically on the sum total of your life’s accomplishments — is irreducibly stressful. On the other hand, my academic career has been remarkably painless. It went something like this: 2004: Graduated from Middlebury College with a degree in Physics.
Ocean mesoscale mixing linked to climate variability
Abstract Mesoscale turbulence in the ocean strongly affects the circulation, water mass formation, and transport of tracers. Little is known, however, about how mixing varies on climate timescales. We present the first time-resolved global dataset of lateral mesoscale eddy diffusivities at the ocean surface, obtained by applying the suppressed mixing length theory to satellite-observed velocities.
The future of data-driven discovery in the cloud
Ryan P. Abernathey is an Assistant Professor of Earth And Environmental Science at Columbia University and Lamont Doherty Earth Observatory. He received his Ph.D. from MIT in 2012 and a B.A. from Middlebury College. He joined Columbia in 2013 after a postdoc at Scripps Institution of Oceanography. Ryan is a physical oceanographer who studies the large-scale ocean circulation and its relationship with Earth's climate.
Impact of Lateral Mixing in the Ocean on El Nino in a Suite of Fully Coupled Climate Models
We examine the dependence of the amplitude of the El Nino-Southern Oscillation (ENSO) on the mixing coefficient parameterizing the lateral mixing of tracers (A ) The value of this coefficient is very uncertain, ranging in Earth System Models between a few hundred and a few thousand m2s?1, with some observational estimates showing even higher values.
‘Pangeo’ Project Will Improve Access to Climate Data
Researchers at Columbia University’s Lamont-Doherty Earth Observatory (LDEO) and their colleagues have just won a $1.2 million grant from the National Science Foundation. In collaboration with the National Center for Atmospheric Research (NCAR) and Anaconda—a private software company and leader in the emerging field of data science—the team will develop an innovative software called “Pangeo,” which aims to help climate scientists confront the challenges of Big Data.
Wind-blown Antarctic sea ice helps drive ocean circulation
Antarctic sea ice is constantly on the move as powerful winds blow it away from the coast and out toward the open ocean. A new study shows how that ice migration may be more important for the global ocean circulation than anyone realized.
2016 ECCO Joint Project Meeting
The Estimating the Circulation and Climate of the Ocean (ECCO) consortium, a joint venture led by MIT, NASA’s Jet Propulsion Laboratory, and Scripps Oceanographic Institution combines observations and the MITgcm to obtain a more realistic understanding of ocean circulation, how it evolves over time, and its impact on global climate.
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