E3SM-Project/E3SM
Jul 2024 – Apr 2026
14 Months active
Languages Used
PythonPerlXMLFortranShellNoneC++
Technical Skills
Python scriptingdata output managementocean modelingconfiguration managementdata modelingscripting
Erin Thomas
PROFILE
Erin Thomas
Contributed to the E3SM repository by developing and refining coupled climate modeling features, focusing on wave, ocean, and atmosphere interactions. Leveraged Fortran, Python, and Perl scripting to implement enhancements such as modular coupling interfaces, robust data output streams, and flexible configuration management. Addressed model stability and maintainability through targeted bug fixes, code cleanup, and test infrastructure improvements. Integrated new physical processes, including surface stress and wave height calculations, while standardizing configuration and coupling logic for reproducibility. Upgraded submodules and streamlined workflows to support high-performance computing and scientific analysis, enabling more reliable, scalable, and configurable Earth system simulations across research teams.
Overall Statistics
Feature vs Bugs
71%Features
Repository Contributions
33Total
Bugs
6
Commits
33
Features
15
Lines of code
2,916,408
Activity Months14
Your Network
175 peopleShared Repositories
108
Abhishek BagusettyMember
Erin ThomasMember
Erin ThomasMember
Oscar Diaz-IbarraMember
Andrew RobertsMember
Andrew RobertsMember
Alexander HagerMember
Andrew M. BradleyMember
Andrew M. BradleyMember
Work History
April 2026
1 Commits • 1 Features
Apr 1, 2026April 2026 — Focused feature delivery for E3SM: Implemented flexible LRW namelist configuration for the bluepulse model, enabling conditional handling of different wave components and greater configurability. No major bugs fixed were documented in this period. Impact: improved model setup flexibility, enabling targeted experimentation and faster iteration with bluepulse configurations. Skills/tech: Namelist-driven configuration, conditional logic, Git-based version control, and cross-repo collaboration on the E3SM project.
1 Commits • 1 Features
Apr 1, 2026April 2026 — Focused feature delivery for E3SM: Implemented flexible LRW namelist configuration for the bluepulse model, enabling conditional handling of different wave components and greater configurability. No major bugs fixed were documented in this period. Impact: improved model setup flexibility, enabling targeted experimentation and faster iteration with bluepulse configurations. Skills/tech: Namelist-driven configuration, conditional logic, Git-based version control, and cross-repo collaboration on the E3SM project.
April 2026
March 2026
1 Commits • 1 Features
Mar 1, 2026March 2026 monthly performance summary for the E3SM project, focused on aligning distributed model components with latest developments by upgrading the WW3 submodule. Delivered a submodule upgrade to ensure compatibility with the mainline and access to the most recent WW3 features and fixes, setting the stage for future enhancements and more robust simulations.
March 2026
1 Commits • 1 Features
Mar 1, 2026March 2026 monthly performance summary for the E3SM project, focused on aligning distributed model components with latest developments by upgrading the WW3 submodule. Delivered a submodule upgrade to ensure compatibility with the mainline and access to the most recent WW3 features and fixes, setting the stage for future enhancements and more robust simulations.
February 2026
2 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for E3SM project: Delivered critical feature enhancement for Icepack wave height calculation and fixed a key atmospheric initialization bug, reinforcing model reliability and end-user data quality.
2 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for E3SM project: Delivered critical feature enhancement for Icepack wave height calculation and fixed a key atmospheric initialization bug, reinforcing model reliability and end-user data quality.
February 2026
November 2025
4 Commits • 1 Features
Nov 1, 20252025-11 Monthly Summary for E3SM (E3SM repository: E3SM). This month focused on stabilizing core surface-layer physics and strengthening the wave-atmosphere coupling, delivering robust numerical handling and up-to-date coupling infrastructure to improve reliability and performance of long-term climate simulations. Key outcomes include hardened surface-layer calculations to prevent log calculation failures at zero/negative roughness, improvedU10/U10N handling in coupled setups, refined coupling logic for wave-atmosphere exchange, and an updated WW3 submodule for better stability and compatibility.
November 2025
4 Commits • 1 Features
Nov 1, 20252025-11 Monthly Summary for E3SM (E3SM repository: E3SM). This month focused on stabilizing core surface-layer physics and strengthening the wave-atmosphere coupling, delivering robust numerical handling and up-to-date coupling infrastructure to improve reliability and performance of long-term climate simulations. Key outcomes include hardened surface-layer calculations to prevent log calculation failures at zero/negative roughness, improvedU10/U10N handling in coupled setups, refined coupling logic for wave-atmosphere exchange, and an updated WW3 submodule for better stability and compatibility.
September 2025
1 Commits
Sep 1, 20252025-09 monthly summary focusing on delivering stability and reliability improvements to the E3SM model. Key change: prevent divide-by-zero in the U* calculation through a threshold adjustment and minor documentation cleanup. This work reduces potential runtime errors and enables more robust, longer simulations across ensembles.
1 Commits
Sep 1, 20252025-09 monthly summary focusing on delivering stability and reliability improvements to the E3SM model. Key change: prevent divide-by-zero in the U* calculation through a threshold adjustment and minor documentation cleanup. This work reduces potential runtime errors and enables more robust, longer simulations across ensembles.
September 2025
May 2025
3 Commits • 1 Features
May 1, 2025May 2025 monthly summary for E3SM repository contributions focusing on delivering business value and technical impact through ocean modeling enhancements and configuration improvements. Highlights include feature delivery, bug/cleanup efforts, and overall impact across the E3SM project.
May 2025
3 Commits • 1 Features
May 1, 2025May 2025 monthly summary for E3SM repository contributions focusing on delivering business value and technical impact through ocean modeling enhancements and configuration improvements. Highlights include feature delivery, bug/cleanup efforts, and overall impact across the E3SM project.
April 2025
1 Commits • 1 Features
Apr 1, 2025Month: 2025-04. Focused feature integration within the E3SM project to enhance ocean-atmosphere coupling through improved surface stress representation.
1 Commits • 1 Features
Apr 1, 2025Month: 2025-04. Focused feature integration within the E3SM project to enhance ocean-atmosphere coupling through improved surface stress representation.
April 2025
February 2025
1 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for E3SM: Implemented Coupling Mode Naming Standardization to unify user-facing configuration and improve simulation reliability. Commit fbfba72651b9de7e1b7c925fd891b01c038413b8 redefines wav_ocn_coup as 'oneway' or 'twoway'. This standardization reduces configuration errors and strengthens reproducibility across simulations. No major bugs recorded this period; efforts concentrated on naming standardization, refactoring, and configuration governance. Overall impact includes smoother user experience, improved automation, and a stronger foundation for CI testing. Technologies/skills demonstrated include Git version control, code refactoring for naming conventions, and cross-team collaboration.
February 2025
1 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for E3SM: Implemented Coupling Mode Naming Standardization to unify user-facing configuration and improve simulation reliability. Commit fbfba72651b9de7e1b7c925fd891b01c038413b8 redefines wav_ocn_coup as 'oneway' or 'twoway'. This standardization reduces configuration errors and strengthens reproducibility across simulations. No major bugs recorded this period; efforts concentrated on naming standardization, refactoring, and configuration governance. Overall impact includes smoother user experience, improved automation, and a stronger foundation for CI testing. Technologies/skills demonstrated include Git version control, code refactoring for naming conventions, and cross-team collaboration.
January 2025
2 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for E3SM development. Highlights include delivering conditional wave-ocean coupling based on compset configuration to reduce unnecessary data transfers and improve model stability, and fixing a critical compilation issue. The work enhances configurability for experiments and strengthens code health across Fortran modules.
2 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for E3SM development. Highlights include delivering conditional wave-ocean coupling based on compset configuration to reduce unnecessary data transfers and improve model stability, and fixing a critical compilation issue. The work enhances configurability for experiments and strengthens code health across Fortran modules.
January 2025
November 2024
7 Commits • 3 Features
Nov 1, 2024Concise monthly summary for 2024-11 highlighting key work on E3SM. Focused on feature deprecation, code quality improvements, and test infrastructure enhancements to strengthen maintainability, reliability, and efficiency of the main repository E3SM. This month emphasized delivering business value through simplification of data remapping workflows, improved code hygiene, and extended test coverage/robustness.
November 2024
7 Commits • 3 Features
Nov 1, 2024Concise monthly summary for 2024-11 highlighting key work on E3SM. Focused on feature deprecation, code quality improvements, and test infrastructure enhancements to strengthen maintainability, reliability, and efficiency of the main repository E3SM. This month emphasized delivering business value through simplification of data remapping workflows, improved code hygiene, and extended test coverage/robustness.
October 2024
1 Commits
Oct 1, 2024Month 2024-10: Delivered a critical bug fix and code-quality improvements to Langmuir mixing logic in the LandIce component under icy conditions. The work gated Langmuir computations by land-ice mask and ice fraction thresholds, and refined model selection based on configuration flags to prevent erroneous calculations. Resulting in more accurate and stable LandIce simulations in cold scenarios, with clear traceability to the commit below.
1 Commits
Oct 1, 2024Month 2024-10: Delivered a critical bug fix and code-quality improvements to Langmuir mixing logic in the LandIce component under icy conditions. The work gated Langmuir computations by land-ice mask and ice fraction thresholds, and refined model selection based on configuration flags to prevent erroneous calculations. Resulting in more accurate and stable LandIce simulations in cold scenarios, with clear traceability to the commit below.
October 2024
September 2024
7 Commits • 2 Features
Sep 1, 2024In September 2024, the E3SM project delivered key fidelity and maintainability improvements to the Wave-Ocean-Ice subsystem and related interfaces. Major outcomes include ICOS30 wave-mesh integration with comprehensive remapping and flux/state definitions to improve wave–ocean–ice interactions, modularization enabling decoupled development of atmospheric and wave components, and targeted corrections to under-ice Stokes drift calculations via a land-ice mask for icy regions. A fix to wav-coupling flags further reduced configuration errors and aligned runtime behavior with design expectations. Collectively, these efforts enhance physical realism, polar-region accuracy, and cross-team development velocity, while enabling smoother future enhancements and collaborations.
September 2024
7 Commits • 2 Features
Sep 1, 2024In September 2024, the E3SM project delivered key fidelity and maintainability improvements to the Wave-Ocean-Ice subsystem and related interfaces. Major outcomes include ICOS30 wave-mesh integration with comprehensive remapping and flux/state definitions to improve wave–ocean–ice interactions, modularization enabling decoupled development of atmospheric and wave components, and targeted corrections to under-ice Stokes drift calculations via a land-ice mask for icy regions. A fix to wav-coupling flags further reduced configuration errors and aligned runtime behavior with design expectations. Collectively, these efforts enhance physical realism, polar-region accuracy, and cross-team development velocity, while enabling smoother future enhancements and collaborations.
August 2024
1 Commits • 1 Features
Aug 1, 2024Month: 2024-08. This month focused on delivering improvements to configuration management for fully coupled wave component sets in the E3SM project, with an emphasis on usability and reproducibility for large-scale simulations.
1 Commits • 1 Features
Aug 1, 2024Month: 2024-08. This month focused on delivering improvements to configuration management for fully coupled wave component sets in the E3SM project, with an emphasis on usability and reproducibility for large-scale simulations.
August 2024
July 2024
1 Commits • 1 Features
Jul 1, 2024July 2024: Delivered an Ocean Model Data Output Enhancement for E3SM, introducing monthly and daily wave statistics streams to expand data availability and analytics. The change includes a bug fix to remove a duplicate line and an update to the PIO format for improved data handling, reliability, and interoperability across downstream tools.
July 2024
1 Commits • 1 Features
Jul 1, 2024July 2024: Delivered an Ocean Model Data Output Enhancement for E3SM, introducing monthly and daily wave statistics streams to expand data availability and analytics. The change includes a bug fix to remove a duplicate line and an update to the PIO format for improved data handling, reliability, and interoperability across downstream tools.
Activity
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Quality Metrics
Correctness92.4%
Maintainability87.8%
Architecture88.2%
Performance85.4%
AI Usage20.6%
Skills & Technologies
Programming Languages
C++FortranNonePerlPythonShellXML
Technical Skills
Bug FixBuild System ConfigurationClimate ModelingCode CleanupCode RefactoringConfigurationData ProcessingEarth system modelingFortranFortran DevelopmentFortran ProgrammingFortran programmingFull Stack DevelopmentHigh-Performance ComputingModel Coupling
Repositories Contributed To
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