University Corporation for Atmospheric Research

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Post-Doctoral Fellow I- Ensemble operational hydrological forecasting

at University Corporation for Atmospheric Research

Posted: 12/13/2018
Job Reference #: 218467
Categories: Other/General

Job Description

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Job Description

Job Title: Post-Doctoral Fellow I - Ensemble operational hydrological forecasting

Location: Boulder, Co

Type: Full-time, Exempt

Position Term: 1 – Year Term Position, with conditional extension to 2 years.

Application Deadline:

This position will be posted until a sufficient number of applications have been received. Thereafter, applications will be reviewed on an as-needed basis.

Relocation: No relocation package is offered for this position.

Work Authorization: UCAR/NCAR will sponsor a work visa to fill this position.

Where You Will Work:

Located in Boulder, Colorado, the National Center for Atmospheric Research (NCAR) is one of the world’s premier scientific institutions, with an internationally recognized staff and research program dedicated to advancing knowledge, providing community-based resources, and building human capacity in the atmospheric and related sciences. NCAR is sponsored by the National Science Foundation (NSF) and managed by the University Corporation for Atmospheric Research (UCAR).

The Research Applications Laboratory (RAL) conducts directed research that contributes to the fundamental understanding of the atmosphere and related physical, biological, and social systems; to support, enhance, and extend the capabilities of the scientific community, and to develop and transfer knowledge and technology for the betterment of life on Earth.

The main goal of the Hydrometeorological Applications Program is to provide relevant information to high-impact weather, flood warning, and water resource decision makers through directed and basic research and development in hydrometeorology, aerosol-precipitation interactions, very short term precipitation nowcasting, cloud microphysical modeling, and winter weather.

What You Will Do:

This is a new, full-time, 1-year term position with conditional extension to 2 years. The new hire will perform applied, deliverable-driven research and development on the application of hydrologic models for ensemble streamflow prediction in several contexts:
(1) Development of WRF-Hydro model applications on a watershed scale for potential implementation as a seasonal forecasting configuration of the National Water Model, in coordination with the National Water Center.

(2) Development of short to seasonal-range ensemble streamflow predictions for selected Reclamation reservoir inflow catchments, using the SUMMA model.

(3) Contributions to the real-time forecast research system called the System for Hydromet Analysis, Research and Prediction (SHARP), which incorporates and facilitates the evaluation
of techniques such as hydrologic data assimilation and pre- and post-processing.


  • Implement watershed-based WRF-Hydro configuration for extended range operational ensemble prediction at the National Water Center. The effort in involves parameter development, calibration and validation, hindcasting and verification, and transition activities.
  • Implement SUMMA-based seasonal ensemble streamflow predictions supporting Reclamation reservoir operations studies and improved understanding of the drivers of forecast skill.
  • Assist in implementing and improving forecast techniques such as data assimilation and post-processing within SHARP or in other contexts (e.g., using NCAR DART).
  • Communicate research results through publication in peer-reviewed journals, meeting proceedings, and presentations at scientific meetings.

What You Need:

Education and Years of Experience:

  • Ph.D. degree in hydrologic sciences or closely related discipline
  • Experience in physically-oriented hydrologic modeling on UNIX-based platforms
  • Demonstrated record of research and publication

Knowledge, Skills, and Abilities:

  • In-depth knowledge of process-based hydrologic modeling.
  • Skill in developing and implementing statistical and simulation techniques (e.g., meteorological forcing, hydrologic model parameter estimation, parameter sensitivity analyses, etc.).
  • Ability to conduct graphical and statistical analyses and post-processing of model output.
  • Ability to establish and maintain a nationally recognized publication record.
  • Ability to participate in and interact productively with hydrologic analysis and prediction groups, statisticians and hydrometeorological scientists at NCAR and among the hydrometeorological forecasting community.
  • Strong skills in written and oral communication of research results, including in an interdisciplinary context.
  • Desired technical/computational skills:
  • Strong competence with data, program and file management in UNIX
  • Strong competence in FORTRAN
  • Demonstrated skill in working with large and heterogeneous datasets
  • Demonstrated skill in managing large computationally intensive model simulations
  • Competence with analysis and scripting in R, Python and UNIX shell
  • Familiarity with GIS or GIS-equivalent (e.g., gdal/ogr)
  • Familiarity with code sharing environments such as Github.
  • Familiarity with super-computing environments (e.g., computing clusters).

What’s in it for You:

  • Compensation
  • PTO
  • Paid Holidays
  • Tuition Reimbursement
  • Benefits (Medical, Dental, Vision)
  • Retirement Plan
  • And more!

EEO/AAP Statement:

The University Corporation for Atmospheric Research (UCAR) is an equal opportunity/equal access/affirmative action employer that strives to develop and maintain a diverse workforce. UCAR is committed to providing equal opportunity for all employees and applicants for employment and does not discriminate on the basis of race, age, creed, color, religion, national origin or ancestry, sex, gender, disability, veteran status, genetic information, sexual orientation, gender identity or expression, or pregnancy.

Whatever your intersection of identities, you are welcome at the University Corporation for Atmospheric Research (UCAR). We are committed to inclusivity and promoting an equitable environment that values and respects the uniqueness of all members of our organization.

Job Location
Boulder, Colorado, United States
Position Type