Theoretical Research on the Terrestrial Exosphere
{'Code': '06020201', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'AGS', 'LongName': 'Div Atmospheric & Geospace Sciences'}}
{'SignBlockName': 'Sunanda Basu', 'PO_EMAI': None, 'PO_PHON': None}
The region around the earth extending, above approximately                      400km, out to many earth radii is called the exosphere.  In this                region hydrogen is the predominant specie and it has long been                  thought of as a region where collisions are rare and neutral                    atoms can travel in ballistic trajectories.  This view has been                 changed recently through observations of the exospheres on both                 Venus and Earth.  The distribution of hydrogen is now thought to                be noticeably influenced by resonant scatter of solar Lyman                     alpha, by charge exchange interactions between H,O and hot H+ as                well as neutral-neutral collisions.  This theoretical study will                attempt to insert many of these processes into the existing model               of exospheric dynamics using new high speed computer facilities                 at the University of Texas. The approach will be to use the monte               carlo technique to develop a model that will give a global                      picture of the concentrations, mean velocity, temperature and                   velocity distributions under the various input conditions.
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{'Name': 'University of Texas at Dallas', 'CityName': 'RICHARDSON', 'ZipCode': '750803021', 'PhoneNumber': '9728832313', 'StreetAddress': '800 WEST CAMPBELL RD.', 'StreetAddress2': 'SP2.25', 'CountryName': 'United States', 'StateName': 'Texas', 'StateCode': 'TX', 'CONGRESSDISTRICT': '32', 'CONGRESS_DISTRICT_ORG': 'TX32', 'ORG_UEI_NUM': 'EJCVPNN1WFS5', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF TEXAS AT DALLAS', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '1521', 'Text': 'AERONOMY'}
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