Debris Entrainment Processes at Glacier Beds
{'Code': '01020301', 'Directorate': {'Abbreviation': 'O/D', 'LongName': 'Office Of The Director'}, 'Division': {'Abbreviation': 'OPP', 'LongName': 'Office of Polar Programs'}}
{'SignBlockName': 'Dwight D. Fisher', 'PO_EMAI': None, 'PO_PHON': None}
Debris entrainment at glacier beds is a fundamental geomorphic                  process because it provides the tools for erosional processes                   such as abrasion and quarrying.  Nonetheless, processes of basal                debris entrainment remain incompletely understood.  This                        investigation, which focuses on these mechanisms, combines                      experimental studies in laboratory and field with theoretical                   analysis of thermal and hydrologic controls on debris                           entrainment.                                                                                                                                                    The widely accepted "Weertman-Boulton" freeze-on hypothesis of                  debris entrainment will be reexamined by finite-element                         hydrologic flow modelling.                                                                                                                                      Debris entrainment by ice lensing (secondary heave) at the soles                of cold glaciers may also be a very important process.  The basic               physics of this process will be investigated in the context of                  field data supporting the existence of this phenomenon.                         Theoretical work involving numerical simulations, to elucidate                  debris-entrainment rates and controls on this mechanism will be                 described.
{'FirstName': 'Bernard', 'LastName': 'Hallet', 'PI_MID_INIT': None, 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Bernard Hallet', 'EmailAddress': 'hallet@u.washington.edu', 'NSF_ID': '000469672', 'StartDate': '08/01/1988', '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': '5112', 'Text': 'ANT Earth Sciences'}, {'Code': '5280', 'Text': 'ANS-Arctic Natural Sciences'}]
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