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The AMIE procedure is an optimally constrained, weighted least-squares fit of electric potential distribution to diverse types of atmospheric observations. Knowledge of these distributions is important in many areas of magnetospheric, ionospheric, and thermospheric physics.
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| CEDAR is the dominant national
and international research program in terrestrial aeronomy. Scientifically,
CEDAR is devoted to the characterization and understanding of the atmosphere
above ~60 km, with emphasis on the energetic and dynamic
processes that determine the basic composition and structure of the
atmosphere. Particular attention is given to how these processes are coupled
and to the mechanisms that couple different atmospheric regions.
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| The Global-Scale Wave Model (GSWM) solves the linearized and extended Navier-Stokes equations for steady-state global temperature and wind perturbations. GSWM may be used to calculate an "unforced" planetary wave response for a specified period and zonal wavenumber, or the thermally-driven response for either a diurnal or semidiurnal atmospheric tide.
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| The NCAR TGCM's are three-dimensional, time-dependent models of the EARTH's neutral upper atmosphere. The model uses a finite differencing technique to obtain a self-consistent solution for the coupled, nonlinear equations of hydrodynamics, thermodynamics, continuity of the neutral gas and for the coupling between the dynamics and the composition.
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| The Whole-Atmosphere Community Climate Model (WACCM) is a comprehensive numerical model, spanning the range of altitude from the Earth's surface to the thermosphere. The development of WACCM is an inter-divisional collaboration that unifies certain aspects of the upper atmospheric modeling of HAO, the middle atmosphere modeling of ACD, and the tropospheric modeling of CGD, using the NCAR Community Climate System Model (CCSM) as a common numerical framework.
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| PIKAIA (pronounced ``pee-kah-yah'') is a general purpose
function optimization FORTRAN-77 subroutine based on a genetic algorithm.
PIKAIA is a public domain software available electronically
from the anonymous ftp archive of the High Altitude Observatory.
The subroutine is particularly useful (and robust) in treating
multimodal optimization problems. |
