E3SM-Project/E3SM
Oct 2024 – Mar 2025
3 Months active
Languages Used
FortranPython
Technical Skills
Atmospheric PhysicsClimate ModelingAtmospheric ChemistryConfiguration ManagementFortran ProgrammingParameter Tuning
Yunpeng Shan
PROFILE
Yunpeng Shan
Yushan Shan contributed to the E3SM-Project/E3SM repository by developing and refining features in atmospheric chemistry and physics, focusing on climate modeling accuracy and configurability. Over three months, Yushan implemented a tunable dust emission cap in the aerosol model, introducing a parameterized control and switch logic in Fortran to enable safe experimentation without unintended flux changes. Additionally, Yushan addressed a double-counting issue in COSP diagnostics, enhancing the reliability of ice precipitation flux calculations. By fixing conditional logic for dust emission triggers and improving configuration management, Yushan’s work demonstrated depth in parameter tuning and strengthened the scientific integrity of model outputs.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
4Total
Bugs
2
Commits
4
Features
2
Lines of code
116
Activity Months3
Your Network
104 peopleSame Organization
@chrlogin2.lcrc.anl.gov1
Work History
March 2025
1 Commits
Mar 1, 2025March 2025 monthly summary for E3SM development highlighting key accomplishments and impact, focused on reliability of dust emission behavior and code quality improvements.
1 Commits
Mar 1, 2025March 2025 monthly summary for E3SM development highlighting key accomplishments and impact, focused on reliability of dust emission behavior and code quality improvements.
March 2025
February 2025
2 Commits • 2 Features
Feb 1, 2025February 2025 monthly summary for E3SM repo focused on delivering Dust Emission Cap controls in the aerosol model to enable configurable emission limiting and safer experimentation. Implemented a tunable dust emission cap parameter and a dedicated cap switch in the namelist, with cap logic that restricts emissions when a defined threshold is reached. The cap is gated by a dstemislimitswitch to avoid unintended flux changes; added logging to flag when the cap is active. There were no explicit bug fixes in this scope; the work emphasizes configurability, stability, and traceability, enabling validated scenario testing without core flux recalculation unless the cap is active.
February 2025
2 Commits • 2 Features
Feb 1, 2025February 2025 monthly summary for E3SM repo focused on delivering Dust Emission Cap controls in the aerosol model to enable configurable emission limiting and safer experimentation. Implemented a tunable dust emission cap parameter and a dedicated cap switch in the namelist, with cap logic that restricts emissions when a defined threshold is reached. The cap is gated by a dstemislimitswitch to avoid unintended flux changes; added logging to flag when the cap is active. There were no explicit bug fixes in this scope; the work emphasizes configurability, stability, and traceability, enabling validated scenario testing without core flux recalculation unless the cap is active.
October 2024
1 Commits
Oct 1, 20242024-10 Monthly Summary for E3SM development focusing on business value and technical achievements. This period centered on delivering a corrective fix to COSP diagnostics to ensure accurate ice precipitation flux calculations, thereby enhancing the scientific validity and reliability of COSP-based outputs used in climate projections. The work aligns with model integrity goals and supports credible research outcomes by addressing a key source of error in ice flux accounting.
1 Commits
Oct 1, 20242024-10 Monthly Summary for E3SM development focusing on business value and technical achievements. This period centered on delivering a corrective fix to COSP diagnostics to ensure accurate ice precipitation flux calculations, thereby enhancing the scientific validity and reliability of COSP-based outputs used in climate projections. The work aligns with model integrity goals and supports credible research outcomes by addressing a key source of error in ice flux accounting.
October 2024
Activity
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Quality Metrics
Correctness80.0%
Maintainability80.0%
Architecture70.0%
Performance60.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
FortranPython
Technical Skills
Atmospheric ChemistryAtmospheric PhysicsClimate ModelingConfiguration ManagementFortran ProgrammingParameter Tuning
Repositories Contributed To
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