A Geodynamo Model: Time Dependence and Response to lateral  Temperature Variations
{'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 goal of the proposed research is to enhance our                        understanding of the maintenance and time variations of the                     earth's magnetic field.  The PI will focus on the dynamical                     balances and fundamental physics of the fluid motion and dynamo                 action for a model of buoyancy driven flow in a rotating self-                  gravitating, spherical shell.  He will more specifically look at                the time dependence of the flow when the laminar drifting thermal               Rossby waves become unstable and at the effects of inhomogeneous                lateral temperature boundary conditions at the core-mantle                      boundary.  He will solve the nonlinear governing equations for                  continuity, momentum, temperature and magnetic field as a function              of time using expansions in terms spherical harmonics and radial                functions.  The resulting solutions will be subjected to time-                  series analysis and the energy transfer mechanisms between mean                 and fluctuating, poloidal and toroidal fields will be determined.               This work is expected to expand our understanding of the time                   dependence of the geodynamo and of the typical response of dynamos              to lateral temperature variations at the core-mantle boundary.
{'FirstName': 'Edward', 'LastName': 'Bolton', 'PI_MID_INIT': 'W', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Edward W Bolton', 'EmailAddress': 'edward.bolton@yale.edu', 'NSF_ID': '000443262', 'StartDate': '05/01/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Yale University', 'CityName': 'NEW HAVEN', 'ZipCode': '065113572', 'PhoneNumber': '2037854689', 'StreetAddress': '150 MUNSON ST', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Connecticut', 'StateCode': 'CT', 'CONGRESSDISTRICT': '03', 'CONGRESS_DISTRICT_ORG': 'CT03', 'ORG_UEI_NUM': 'FL6GV84CKN57', 'ORG_LGL_BUS_NAME': 'YALE UNIV', 'ORG_PRNT_UEI_NUM': 'FL6GV84CKN57'}
{'Name': None, 'CityName': None, 'StateCode': None, 'ZipCode': None, 'StreetAddress': None, 'CountryCode': None, 'CountryName': None, 'StateName': None, 'CountryFlag': None, 'CONGRESSDISTRICT': None, 'CONGRESS_DISTRICT_PERF': '""'}
{'Code': '1574', 'Text': 'Geophysics'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8721027.xml'}