Development of a New Global Atmospheric Model from 0-150 km for High-Altitude Weather Prediction

Employer
U.S. Naval Research Laboratory
Location
Washington D.C.
Salary
Salary commensurate with experience and skills.
Posted
Apr 04, 2018
Closes
May 04, 2018
Career Level
Researcher
Education Level
Masters
Job Type
Full-time
Relocation Cost
Negotiable
Sector Type
Government

The Space Science Division of the US Naval Research Laboratory (NRL) in Washington, DC seeks a highly motivated individual to perform scientific research & development (R&D) of a state-of-the-art global numerical model of the atmosphere extending from the ground to 150 km altitude, which can provide the foundation of a future high-altitude operational numerical weather prediction (NWP) capability. The system will be based around an emerging Navy dynamical core (NEPTUNE: Navy Environmental Prediction System Utilizing the NUMA Core) solving the deep-atmosphere nonhydrostatic equations on the sphere using spectral element (SE) techniques. This work supports NRL’s broadly-based long-term R&D objectives of providing focused state-of-the-art environmental situational awareness for the globally deployed Navy.

Candidates should have a masters or Ph. D. in atmospheric science, computational fluid dynamics, physics, or a related discipline that demonstrates strong theoretical grounding in the dynamics and/or physics of the atmosphere. Candidates will require strong programming skills in working with complex Fortran codes that use up to 1 million processors on massively parallel high-performance computers, and an ability and willingness to work within large team environments distributed across several geographically displaced NRL research centers (including periodic work-related travel).

Additional knowledge, experience or interests in any of the following areas are advantageous, but not formally required, for this position:

  • Interests in the deep atmosphere (0-150 km altitude), with an emphasis on those dynamical and physical processes affecting evolution on time scales in the 0-5 day range.
  • R&D experience with state-of-the-art atmospheric dynamical cores (e.g., SE/Galerkin methods, implicit/explicit time integrators, structured/unstructured/adaptive grids, static mesh refinement, and species transport algorithms).
  • R&D experience developing fast physics parameterizations for the stratosphere, mesosphere and thermosphere. Relevant examples include (but are not restricted to): “scale-aware”, “gray-zone” and stochastic parameterizations; radiative/chemical heating and cooling rates; diffusive separation of thermospheric species, and; drag effects of gravity waves, viscosity and ion-neutral coupling.
  • Programming credentials in Fortran, C/C++, python, and MPI/OpenMP.

All applicants for federal positions must be US citizens. Formal applications and any questions should be emailed to Dr. Steve Eckermann (stephen.eckermann@nrl.navy.mil: Tel. 202-404-1299). Applications will be accepted until 11 May 2018 or until the position is filled. NRL is an equal opportunity employer.  Further background to this research can be found at www.nrl.navy.mil/ssd/branches/7630.

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