J Rasmussen
Principal Owner at Degree Day LLC
San Diego, California, United States
Summary
👤
Senior🎓
Top SchoolJ Rasmussen is a founder and chief scientist who translates rigorous climate science into engineering-grade risk assessments for high-stakes infrastructure decisions, with over a decade of experience spanning academia, consulting, and operational analytics. Trained at Princeton (PhD) and published in Science and Nature Climate Change, he specializes in sea level rise, coastal flooding, and extreme-event probabilistic modeling, and he’s comfortable saying when data do not support definitive answers. He has led climate-risk work for utilities, transit agencies, data center operators, Fortune 500 firms, and U.S. government clients, and helped operationalize regulatory-aligned disclosures like CSRD ESRS E1 and TCFD. His background bridges high-performance scientific computing, Bayesian spatial extreme-value methods, and practical implementation—skills honed building air quality and climate downscaling systems and processing terabytes of probabilistic projections. Based in San Diego, he founded Degree Day to deliver defensible, review-ready analyses where simplifications would be costly.
10 years of coding experience
9 years of employment as a software developer
MS Civil and Environmental Engineering, MS Civil and Environmental Engineering at University of California, DavisBS Atmospheric and Oceanic Science, BS Atmospheric and Oceanic Science at University of Wisconsin-MadisonDoctor of Philosophy (Ph.D.) Applied Climate Science Impacts and Policy, Doctor of Philosophy (Ph.D.) Applied Climate Science Impacts and Policy at Princeton University
Github Skills (2)
localization2
translation2
Programming languages (2)
Github contributions (5)
dmr2/dmr2.github.io
Jul 2016 - Jan 2025
Contributions:133 pushes, 1 branch in 8 years 7 months
dmr2/parallel_calpuff
Jul 2016 - Apr 2022
Contributions:2 commits, 1 push, 1 branch in 5 years 9 months
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