Investigation of the Mesospheric Chemistry and Dynamics     Using the Arecibo Radar Facility
{'Code': '06020201', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'AGS', 'LongName': 'Div Atmospheric & Geospace Sciences'}}
{'SignBlockName': 'Shannon L. Hughes', 'PO_EMAI': None, 'PO_PHON': None}
Of all the unsolved problems of the middle atmosphere, more                seem to occur in the upper mesosphere (80-95km) than in any other               region.  One general reason for the accumulation of problems here               is that radiative, chemical and dynamical equations used to model               the regions below this region all contain simplifications that                  are invalid in the upper mesosphere.  This implies that theories                and modeling for this region require special attention beyond                   that usually required for the regions above or below it.                             Not only is this region difficult to model, but it is also                 difficult to investigate experimentally.  This region is too high               for access with airplanes or balloons and too low for satellite                 in situ measurements.  Clearly, the development of reliable                     sensing techniques is important to the study of this region of                  the atmosphere.                                                                      A pioneering effort in the development of radar techniques                 for the study of the chemistry of the upper mesosphere which                    includes the ionospheric D region is being carried out by Prof.                 Mathews, the PI on this proposal.  Using large incoherent radar                 facilities operated by NSF at Arecibo in Puerto Rico and                        Millstone Hill in the Boston area, Prof. Mathews has been able to               generate a valuable data set for the important study of D-region                chemistry and the associated dynamics.  THis proposal describes a               research project to extend the observations, analyze the data,                  and carry out theoretical work on the modelling of mesospheric                  ion chemistry and the formation and maintenance of the sporadic                 ionization layers.  The experiment results which include the                    electron and ion concentrations will be used as constraints on                  the theoretical models.  also, work will be done on further                     refinement of the radar scattering theory and utilization.
{'FirstName': 'John', 'LastName': 'Mathews', 'PI_MID_INIT': 'D', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'John D Mathews', 'EmailAddress': 'JDMathews@psu.edu', 'NSF_ID': '000270733', 'StartDate': '08/15/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Pennsylvania State Univ University Park', 'CityName': 'UNIVERSITY PARK', 'ZipCode': '168021503', 'PhoneNumber': '8148651372', 'StreetAddress': '201 OLD MAIN', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Pennsylvania', 'StateCode': 'PA', 'CONGRESSDISTRICT': '15', 'CONGRESS_DISTRICT_ORG': 'PA15', 'ORG_UEI_NUM': 'NPM2J7MSCF61', 'ORG_LGL_BUS_NAME': 'THE PENNSYLVANIA STATE UNIVERSITY', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '1521', 'Text': 'AERONOMY'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8743318.xml'}