Mars Global Reference Atmospheric Model Mars Gram Version 38 Users Guide
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Mars Global Reference Atmospheric Model (Mars-Gram) Version 3.8
| Author | : National Aeronautics and Space Administration (NASA) |
| Publisher | : Createspace Independent Publishing Platform |
| Total Pages | : 34 |
| Release | : 2018-06-03 |
| Genre | : |
| ISBN | : 9781720619970 |
Mars Global Reference Atmospheric Model (Mars-GRAM) Version 3.8 is presented and its new features are discussed. Mars-GRAM uses new values of planetary reference ellipsoid radii, gravity term, and rotation rate (consistent with current JPL values) and includes centrifugal effects on gravity. The model now uses NASA Ames Global Circulation Model low resolution topography. Curvature corrections are applied to winds and limits based on speed of sound are applied. Altitude of the F1 ionization peak and density scale height, including effects of change of molecular weight with altitude are computed. A check is performed to disallow temperatures below CO2 sublimination. This memorandum includes instructions on obtaining Mars-GRAM source code and data files and running the program. Sample input and output are provided. An example of incorporating Mars-GRAM as an atmospheric subroutine in a trajectory code is also given.Justus, C. G. and James, B. F.Marshall Space Flight CenterMARS (PLANET); MARS ATMOSPHERE; ATMOSPHERIC TEMPERATURE; ATMOSPHERIC MODELS; ATMOSPHERIC DENSITY; SUBROUTINES; USER MANUALS (COMPUTER PROGRAMS); COMPUTER AIDED TOMOGRAPHY; TOPOGRAPHY
Spaceflight Mechanics 2005
| Author | : David A. Vallado |
| Publisher | : |
| Total Pages | : 1108 |
| Release | : 2005 |
| Genre | : Orbital mechanics |
| ISBN | : |
Scientific and Technical Aerospace Reports
| Author | : |
| Publisher | : |
| Total Pages | : 1460 |
| Release | : 1991 |
| Genre | : Aeronautics |
| ISBN | : |
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Mars Global Reference Atmospheric Model (Mars-Gram 3.34)
| Author | : National Aeronautics and Space Administration (NASA) |
| Publisher | : Createspace Independent Publishing Platform |
| Total Pages | : 196 |
| Release | : 2018-07-18 |
| Genre | : |
| ISBN | : 9781723200250 |
This is a programmer's guide for the Mars Global Reference Atmospheric Model (Mars-GRAM 3.34). Included are a brief history and review of the model since its origin in 1988 and a technical discussion of recent additions and modifications. Examples of how to run both the interactive and batch (subroutine) forms are presented. Instructions are provided on how to customize output of the model for various parameters of the Mars atmosphere. Detailed descriptions are given of the main driver programs, subroutines, and associated computational methods. Lists and descriptions include input, output, and local variables in the programs. These descriptions give a summary of program steps and 'map' of calling relationships among the subroutines. Definitions are provided for the variables passed between subroutines through common lists. Explanations are provided for all diagnostic and progress messages generated during execution of the program. A brief outline of future plans for Mars-GRAM is also presented. Justus, C. G. and James, Bonnie F. and Johnson, Dale L. Marshall Space Flight Center ATMOSPHERIC MODELS; USER MANUALS (COMPUTER PROGRAMS); MARS ATMOSPHERE; COMPUTER PROGRAMMING; MARS (PLANET); PLANETARY METEOROLOGY; SUBROUTINES; BATCH PROCESSING; COMPUTER PROGRAMS...
Mars Global Reference Atmospheric Model 2010 Version
| Author | : National Aeronautics and Space Administration (NASA) |
| Publisher | : Createspace Independent Publishing Platform |
| Total Pages | : 94 |
| Release | : 2018-05-22 |
| Genre | : |
| ISBN | : 9781719502757 |
This Technical Memorandum (TM) presents the Mars Global Reference Atmospheric Model 2010 (Mars-GRAM 2010) and its new features. Mars-GRAM is an engineering-level atmospheric model widely used for diverse mission applications. Applications include systems design, performance analysis, and operations planning for aerobraking, entry, descent and landing, and aerocapture. Additionally, this TM includes instructions on obtaining the Mars-GRAM source code and data files as well as running Mars-GRAM. It also contains sample Mars-GRAM input and output files and an example of how to incorporate Mars-GRAM as an atmospheric subroutine in a trajectory code. Justh, H. L. Marshall Space Flight Center ATMOSPHERIC GENERAL CIRCULATION MODELS; MARS GLOBAL SURVEYOR; MARS RECONNAISSANCE ORBITER; MARS (PLANET); MARS ATMOSPHERE; CLIMATE MODELS; TOPOGRAPHY; BOUNDARY LAYERS; WIND MEASUREMENT; ATMOSPHERIC TEMPERATURE; ATMOSPHERIC DENSITY; SYSTEMS ENGINEERING; AEROBRAKING; AEROCAPTURE; REFERENCE ATMOSPHERES
Lunar Sourcebook
| Author | : Grant Heiken |
| Publisher | : CUP Archive |
| Total Pages | : 796 |
| Release | : 1991-04-26 |
| Genre | : Science |
| ISBN | : 9780521334440 |
The only work to date to collect data gathered during the American and Soviet missions in an accessible and complete reference of current scientific and technical information about the Moon.
Humans to Mars
| Author | : David S. F. Portree |
| Publisher | : |
| Total Pages | : 164 |
| Release | : 2001 |
| Genre | : Space flight to Mars |
| ISBN | : |
Mars Global Reference Atmospheric Model 2001 Version (Mars-Gram 2001): Users Guide
| Author | : National Aeronautics and Space Adm Nasa |
| Publisher | : Independently Published |
| Total Pages | : 68 |
| Release | : 2018-09-20 |
| Genre | : Science |
| ISBN | : 9781723858239 |
This document presents Mars Global Reference Atmospheric Model 2001 Version (Mars-GRAM 2001) and its new features. As with the previous version (mars-2000), all parameterizations fro temperature, pressure, density, and winds versus height, latitude, longitude, time of day, and season (Ls) use input data tables from NASA Ames Mars General Circulation Model (MGCM) for the surface through 80-km altitude and the University of Arizona Mars Thermospheric General Circulation Model (MTGCM) for 80 to 70 km. Mars-GRAM 2001 is based on topography from the Mars Orbiter Laser Altimeter (MOLA) and includes new MGCM data at the topographic surface. A new auxiliary program allows Mars-GRAM output to be used to compute shortwave (solar) and longwave (thermal) radiation at the surface and top of atmosphere. This memorandum includes instructions on obtaining Mars-GRAN source code and data files and for running the program. It also provides sample input and output and an example for incorporating Mars-GRAM as an atmospheric subroutine in a trajectory code.Justus, C. G. and Johnson, D. L.Marshall Space Flight CenterMARS ATMOSPHERE; ATMOSPHERIC GENERAL CIRCULATION MODELS; MARS SURFACE; PARAMETERIZATION; ATMOSPHERIC MODELS; ATMOSPHERIC CIRCULATION; TOPOGRAPHY; THERMOSPHERE; LONG WAVE RADIATION; TRAJECTORIES
Sampling for Natural Resource Monitoring
| Author | : Jaap de Gruijter |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 327 |
| Release | : 2006-04-26 |
| Genre | : Science |
| ISBN | : 3540331611 |
This book presents statistical knowledge, and methodology of sampling and data analysis specifically for spatial inventory and monitoring of local natural resources. The text shows how statistical methodology can be embedded in real-life spatial inventory and monitoring projects. The book functions as a design guide for efficient sampling schemes and monitoring systems can be designed, consistent with the aims and constraints of the project.
