Overview
At PNNL, our core capabilities are divided among major departments that we refer to as Directorates within the Lab, focused on a specific area of scientific research or other function, with its own leadership team and dedicated budget.
Our Science & Technology directorates include National Security, Earth and Biological Sciences, Physical and Computational Sciences, and Energy and Environment. In addition, we have an Environmental Molecular Sciences Laboratory, a Department of Energy, Office of Science user facility housed on the PNNL campus.
The Earth and Biological Sciences Directorate (EBSD) leads critical research in four areas: Atmospheric, Climate & Earth Sciences, Biological Sciences, Environmental Molecular Sciences, and Global Change. Our vision is to develop a predictive understanding of biological and Earth systems in transition. We aim to understand energy and material flows within the integrated Earth system; to understand, predict, and control the response of biosystems to environmental and/or genomic changes; and to?? Model the Earth system from the subsurface to the atmosphere.?
The Atmospheric, Climate, and Earth Sciences (ACES) Division comprises multidisciplinary teams working to advance the predictive knowledge of Earth systems. The ACES team includes researchers at every career stage who collaborate across disciplines to address some of the most pressing challenges which are critical to ensure a robust U.S. energy system. Scientists in ACES provide their expertise to major sections of the Department of Energy's Office of Science, Biological and Environmental Research program, including the Atmospheric Radiation Measurement (ARM) user facility, the Atmospheric System Research program, and the Earth & Environmental Systems Modeling program.
Responsibilities
The Atmosphere, Climate, and Earth Science Division is looking for an intern for the spring or summer of 2026. The candidate will contribute to the emerging field of global snow modeling through evaluating and improving snowpack simulations in DOE's Energy Exascale Earth System Model (E3SM). The internship is a remote opportunity for a duration of 12 to 16 weeks. The candidate will gain valuable experience and transferable knowledge and skills in Earth system science, running, evaluating and improving Earth System Models, high-performance computing, contributing to large open-source projects on GitHub, and science communication. The expected outcome involves a peer-reviewed publication after the successful completion of this project.
Key responsibilities:
Collect remote sensing data and evaluate snowpack simulations in E3SM
Improve snowpack parameterizations in E3SM
Run E3SM simulations to test model performance and answer scientific questions
Present model improvement and research findings at internal seminars
Qualifications
Minimum Qualifications:
Preferred Qualifications:
Working towards a degree in Civil and Environmental Engineering, Atmosphere Science, Computer Science, Mechanical Engineering, Engineering Physics, Remote Sensing, or a related field.
Passionate about snow hydrology.
Have experience with or strong interest in the following: remote sensing, land surface modeling, high-performance computing, and open-source workflows.
Proficient with at least one programming language (e.g., Python, R, Julia, MATLAB, C++, Fortran, etc.).
Prior research experience is preferred but not required.
Hazardous Working Conditions/Environment
Not applicable.
Testing Designated Position
This is not a Testing Designated Position (TDP).
About PNNL
Pacific Northwest National Laboratory (PNNL) is a world-class research institution powered by a highly educated, diverse workforce committed to the values of Integrity, Creativity, Collaboration, Impact, and Courage. Every year, scores of dynamic, driven people come to PNNL to work with renowned researchers on meaningful science, innovations and outcomes for the U.S. Department of Energy and other sponsors; here is your chance to be one of them!
At PNNL, you will find an exciting research environment and excellent benefits including health insurance, and flexible work schedules. PNNL is located in eastern Washington State-the dry side of Washington known for its stellar outdoor recreation and affordable cost of living. The Lab's campus is only a 45-minute flight (or ~3 hour drive) from Seattle or Portland, and is serviced by the convenient PSC airport, connected to 8 major hubs.
Commitment to Excellence and Equal Employment Opportunity
Our laboratory is committed to fostering a work environment where all individuals are treated with fairness and respect while solving critical challenges in fundamental sciences, national security, and energy resiliency. We are an Equal Employment Opportunity employer.
Pacific Northwest National Laboratory (PNNL) is an Equal Opportunity Employer. PNNL considers all applicants for employment without regard to race, religion, color, sex, national origin, age, disability, genetic information (including family medical history), protected veteran status, and any other status or characteristic protected by federal, state, and/or local laws.
We are committed to providing reasonable accommodations for individuals with disabilities and disabled veterans in our job application procedures and in employment. If you need assistance or an accommodation due to a disability, contact us at [email protected] .
Drug Free Workplace
PNNL is committed to a drug-free workplace supported by Workplace Substance Abuse Program (WSAP) and complies with federal laws prohibiting the possession and use of illegal drugs.
Security, Credentialing, and Eligibility Requirements
As a national laboratory, PNNL is responsible for adhering to the Homeland Security Presidential Directive 12 (HSPD-12) and Department of Energy (DOE) Order 473.1A, which require new employees to obtain and maintain a HSPD-12 Personal Identify Verification (PIV) Credential. To obtain this credential, new employees must successfully complete the applicable tier of federal background investigation post hire and receive a favorable federal adjudication. The tier of federal background investigation will be determined by job duties and national security or public trust responsibilities associated with the job. All tiers of investigation include a declaration of illegal drug activities, including use, supply, possession, or manufacture within the last 1 to 7 years (depending on the applicable tier of investigation). Illegal drug activities include marijuana and cannabis derivatives, which are still considered illegal under federal law, regardless of state laws.
For foreign national candidates:
If you have not resided in the U.S. for three consecutive years, you are not eligible for the PIV credential and instead will need to obtain a favorable Local Site Specific Only (LSSO) Federal risk determination to maintain employment. Once you meet the three-year residency requirement thereafter, you will be required to obtain a PIV credential to maintain employment. The tier of federal background investigation required to obtain the PIV credential will be determined by job duties at the time you become eligible for the PIV credential.
Mandatory Requirements
Please be aware that the Department of Energy (DOE) prohibits DOE employees and contractors from having any affiliation with the foreign government of a country DOE has identified as a "country of risk" without explicit approval by DOE and Battelle. If you are offered a position at PNNL and currently have any affiliation with the government of one of these countries, you will be required to disclose this information and recuse yourself of that affiliation or receive approval from DOE and Battel
