Global Reference Atmospheric Model (GRAM) Suite(MFS-33888-1)

environmental science earth air space exoplanet
Global Reference Atmospheric Model (GRAM) Suite
(MFS-33888-1)
Overview
The Global Reference Atmospheric Model (GRAM) Suite is an engineering-oriented atmospheric model that estimates mean values and statistical variations of atmospheric properties for planetary destinations. GRAM outputs include atmospheric density, temperature, pressure, winds, and chemical composition along a user-defined path. The GRAMs have been rearchitected from Fortran to a common object-oriented C++ framework. This new architecture creates a common GRAM library of data models and utilities. The GRAM ephemeris has been upgraded to the NASA Navigation and Ancillary Information Facility (NAIF) Spacecraft Planet Instrument C-matrix Events (SPICE) toolkit. The GRAM Suite also contains improved methodology that computes the ratio of specific heats in run-time for the current constituent combination, resulting in more accurate speed of sound calculations. Version 1.4 of the GRAM Suite consists of the rearchitected Earth-GRAM, Mars-GRAM, Neptune-GRAM, Titan-GRAM, and Venus-GRAM and the new Uranus-GRAM and Jupiter-GRAM. The Version 1.4 release includes the 2019 Range Reference Atmosphere database in Earth-GRAM.
Software Details

Category
Environmental Science (Earth, Air, Space, Exoplanet)
Reference Number
MFS-33888-1
Release Type
General Public Release
Operating System
Windows, Linux, OS X
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Marshall Space Flight Center
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