CEDAR email: Research & Development Position at NRL/Space Science Division

[John Emmert]

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 at nrl.navy.mil: Tel. 202-404-1299). Applications will be
accepted until 1 May 2018 or until the position is filled. NRL is an equal
opportunity employer.  
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