WVR and Multipath Corrections for High Accuracy GPS
{'Code': '06030204', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'EAR', 'LongName': 'Division Of Earth Sciences'}}
{'SignBlockName': 'Michael A. Mayhew', 'PO_EMAI': None, 'PO_PHON': None}
The Global Positioning System (GPS) has matured to achieve                 relative positioning accuracies of 0.1 ppm or better.  Remaining                error sources that limit this accuracy are:  (a) the wet                        tropospheric path delay suffered by the GPS signal and (b)                      multipath reflections.  The PIs will run a GPS baseline                         experiment in Colorado in order to study both these errors and                  methods of reducing them.  They will investigate the effect of                  azimuthal variations of the wet troposphere on the determination                of GPS baselines.  In order to study this effect it is necessary                to suppress multipath errors that might mask the tropospheric                   variations.
[{'FirstName': 'Christian', 'LastName': 'Rocken', 'PI_MID_INIT': None, 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Christian Rocken', 'EmailAddress': 'rocken@ucar.edu', 'NSF_ID': '000416342', 'StartDate': '04/15/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}, {'FirstName': 'Charles', 'LastName': 'Meertens', 'PI_MID_INIT': 'M', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Charles M Meertens', 'EmailAddress': 'charles.meertens@colorado.edu', 'NSF_ID': '000453015', 'StartDate': '04/15/1989', 'EndDate': None, 'RoleCode': 'Co-Principal Investigator'}]
{'Name': 'University of Colorado at Boulder', 'CityName': 'Boulder', 'ZipCode': '803090001', 'PhoneNumber': '3034926221', 'StreetAddress': '3100 MARINE ST', 'StreetAddress2': 'STE 481 572 UCB', 'CountryName': 'United States', 'StateName': 'Colorado', 'StateCode': 'CO', 'CONGRESSDISTRICT': '02', 'CONGRESS_DISTRICT_ORG': 'CO02', 'ORG_UEI_NUM': 'SPVKK1RC2MZ3', 'ORG_LGL_BUS_NAME': 'THE REGENTS OF THE UNIVERSITY OF COLORADO', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '1574', 'Text': 'Geophysics'}
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