Whole Mantle Electrical Conductivity &amp; the Velocity Field ofUpper Core-Constraints from Applied Mantle Filter Theory,   GDS, and improvements in the Global Geomagnetic Database
{'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}
Initial results of deep mantle electrical conductivity                     studies underway suggest that a localized jump in electrical                    conductivity is present at midmantle depths, with a peak in the                 conductivity gradient roughly coincident with the 670 km seismic                discontinuity.  The PI will obtain higher resolution models of                  the electrical conductivity of the whole mantle.  This involves                 calculating equivalent scalar magnetotelluric impedance functions               from ratios of magnetic field Fourier coefficients.  The                        transformation of spectral ratios into impedances is made                       possible by knowledge of the magnetic field source structure.  He               will apply concepts of robust statistical parameter estimation to               the problem of spherical harmonic analysis.
{'FirstName': 'Adam', 'LastName': 'Schultz', 'PI_MID_INIT': None, 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Adam Schultz', 'EmailAddress': 'adam@ceoas.oregonstate.edu', 'NSF_ID': '000126204', 'StartDate': '09/10/1993', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of Washington', 'CityName': 'SEATTLE', 'ZipCode': '981951016', 'PhoneNumber': '2065434043', 'StreetAddress': '4333 BROOKLYN AVE NE', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Washington', 'StateCode': 'WA', 'CONGRESSDISTRICT': '07', 'CONGRESS_DISTRICT_ORG': 'WA07', 'ORG_UEI_NUM': 'HD1WMN6945W6', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF WASHINGTON', 'ORG_PRNT_UEI_NUM': None}
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[{'Code': '1574', 'Text': 'Geophysics'}, {'Code': '1581', 'Text': 'CONTINENTAL DYNAMICS PROGRAM'}]
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