Development of a New Global Atmospheric Model from 0-150 km for High-Altitude Weather Prediction
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 (email@example.com: 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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