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. Description: Theoretical research and computer simulation are carried out with emphasis on observations of space plasmas. Specific interest areas include (1) nonlinear phenomena in unstable collisionless
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precipitation. Combinations of radio occultation data with other observational techniques that add information on cloud physical variables in presence of precipitation will also be pursued. Location: Jet
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. Description: This opportunity is closed to applicants who are Senior Fellows (5-years or more past PhD). The Goddard Earth Observing System (GEOS) global 4D hybrid Ensemble-Variational (EnVar) data assimilation
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. Description: This opportunity is closed to applicants who are Senior Fellows (5-years or more past PhD). The Goddard Earth Observing System (GEOS) global 4D hybrid Ensemble-Variational (EnVar) data assimilation
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, measurement techniques, etc.) to optimize flight instrument workflow and hardware. For more information about our group and facilities, please see http://planetary.msfc.nasa.gov/Main.html Location: Goddard
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of data as well as empirical and theoretical modeling of the solar interior and atmosphere, including solar activity and the solar cycle. A program of research is being carried out to understand the coupled
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aerosol optical depth, single scattering albedo (i.e. absorption), size distribution, particle morphology, refractive index and chemical composition. Emphasis is placed on datasets with high information
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addition to their essential role in scientific research, numerical simulations are now integral to mission forecasting and survey formulation, and to the eventual analysis of observational data. We have several opportunities
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better understanding of the nature of dust—e.g., its size, shape, composition, and optical properties—allows better extraction of the astrophysical information it contains and enables higher fidelity dust
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. Description: Context: Laboratory Astrophysics is a core capability at NASA Ames Research Center. Laboratory experiments and quantum-chemical computations simulating astrophysical conditions generate data