Sebastian Eastham
Associate Professor In Sustainable Aviation
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolSebastian Eastham is an aerospace researcher and associate professor specializing in sustainable aviation with 13 years of experience bridging atmospheric chemistry, emission impacts, and aircraft systems. He holds a PhD from MIT and completed a joint NOAA–Harvard postdoc, then moved from research scientist and associate director roles at MIT to his current post at Imperial College London. Sebastian combines hands-on modeling—contributing to the widely used GEOS-Chem codebase by improving methane initialization, stratospheric aerosol support, and heterogeneous chemistry—with policy-relevant climate and health impact studies of high-altitude emissions. Comfortable switching between code, laboratory models, and interdisciplinary collaboration, he brings uncommon depth in both atmospheric simulation and practical aviation engineering. His work frequently informs geoengineering and aviation-decarbonization debates, reflecting a rare blend of computational rigor and policy-facing application.
13 years of coding experience
7 years of employment as a software developer
Ph.D., Aeronautical and astronautical engineering, Ph.D., Aeronautical and astronautical engineering at Massachusetts Institute of TechnologyB.A., M.Eng, Aerospace and aerothermal engineering, First class, B.A., M.Eng, Aerospace and aerothermal engineering, First class at University of Cambridge
Github Skills (4)
scientific-computing10
fortran10
chemistry10
atmosphere10
Programming languages (7)
Github contributions (5)
geoschem/geos-chem
Mar 2013 - May 2022
GEOS-Chem "Science Codebase" repository. Contains GEOS-Chem science routines, run directory generation scripts, and interface code. This repository is used as a submodule within the GCClassic and GCHP wrappers, as well as in other modeling contexts (external ESMs).
Role in this project:
Back-end Developer & Atmospheric Chemistry Modeler
Back-end Developer & Atmospheric Chemistry ModelerContributions:1 review, 58 commits, 14 PRs in 9 years 3 months
Contributions summary:Sebastian primarily worked on improving the initialization and calculation of atmospheric chemistry species within the GEOS-Chem model. Their contributions included correcting the initialization of methane, adding support for stratospheric aerosols, and implementing heterogeneous chemistry. The user also implemented new functionality related to tracking J-rates and contributed to a geoengineering emissions module.
awscodebasecontextsscienceatmospheric-modelling
sdeastham/LGTracer_2.0
Feb 2024 - May 2024
Contributions:154 pushes, 16 branches in 3 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.