Post Masters RA – Watershed Hydrobiogeochemical Modeling

Job Description

The candidate for this position will study the hydrologic and biogeochemical processes associated with river- groundwater exchange at watershed scale utilizing a suite of simulation codes, for example, subsurface flow and reactive transport code PFLOTRAN, Soil and Water Assessment Tool (SWAT), WRF-Hydro, and their equivalents. The candidate will be expected to participate in the development of novel conceptual models for modeling real-world flow and biogeochemical transport at various catchments within the Columbia River Basin. The candidate will work with a multi-disciplinary team of computational and experimental scientists to understand how the watershed-scale hydrologic and nutrient cycling is impacted by the hydrologic exchanges between the surface water and groundwater. This position will require numerical modeling, data analyses and visualization in a high performance computing environment.

Closing Date: April 29, 2019 – closing soon!

More Information:

Minimum Qualifications

Candidates must have received a Master’s degree within the past 24 months or within the next 8 months from an accredited college or university. Minimum overall GPA of 3.0 required.

Preferred Qualifications

Candidates must have received a Master’s Degree Watershed Hydrology, Biogeochemistry, Geoscience, Engineering (Civil, Geological, or Environmental), or related field.

The candidate must have (1) a background in watershed hydrology, geohydrology, or biogeochemical modeling; (2) experience in independently designing conceptual model of a complex system and implementing in simulation codes; (3) fluency in one or more programming or scripting languages; and (4) excellent written and oral communication skills as evidenced by publications in top-tier journals and presentations at professional conferences.

Candidates that demonstrate any or all of the following are preferred: (1) strong skills in independent conceptual model development at multiple scales (e.g. gridding/meshing, mapping of boundary and initial conditions, source sinks); (2) experience using WRF-Hydro, SWAT, CLM, PFLOTRAN or equivalent; (2) strong statistical data analysis and visualization skills; (3) Fluency with R or Python; (4) fluency with the Linux operating system, parallel programming paradigms on high-performance computers.

Preferred GPA 3.5

Equal Employment Opportunity

Battelle Memorial Institute (BMI) at Pacific Northwest National Laboratory (PNNL) is an Affirmative Action/Equal Opportunity Employer and supports diversity in the workplace. All employment decisions are made without regard to race, color, religion, sex, national origin, age, disability, veteran status, marital or family status, sexual orientation, gender identity, or genetic information. All BMI staff must be able to demonstrate the legal right to work in the United States. BMI is an E-Verify employer. Learn more at

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