The Hydromechanics of Sediment Traps in the Oceanic         Environment:  Key to Accurate Particle Flux Measurements
{'Code': '06040302', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'OCE', 'LongName': 'Division Of Ocean Sciences'}}
{'SignBlockName': 'Nicholas Anderson', 'PO_EMAI': 'nanderso@nsf.gov', 'PO_PHON': '7032924715'}
An In situ investigation of the relationship between sediment                   trap collection efficiency and trap hydrodynamics will be                       conducted for sediment trap designs, cone shaped and cylindrical,               which are integral to the Global Ocean Flux initiative in the                   Atlantic Ocean.  The studies will include a careful assessment of               moored versus drifting sediment trap  collection systems at the                 Bermuda site where long term observations are in progress.  The                 independent variable in this investigation is sediment trap                     geometry, while the dependent variables are trap hydrodynamics                  and collection efficiency.  In situ hydrodynamic observations                   will be obtained using laboratory-calibrated self-contained                     instrument packages (HDS) which record both flow and well                       shearing stress in a non-obstrusive way at critical locations                   inside and outside the traps.  One of the principal products of                 the work will be a simple, easy-to-use, flow-field sensor package               which can be applied to Global Ocean Flux investigations.  By                   linking particle accumulation rates with In situ hydrodynamic                   observations in and around sediment traps, it is expected that                  fluid-dynamic bias can be removed and flux rates inferred which                 are functionally equivalent to those provided by an ideal, non-                 obtrusive collection device.
[{'FirstName': 'Giselher', 'LastName': 'Gust', 'PI_MID_INIT': 'R', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Giselher R Gust', 'EmailAddress': None, 'NSF_ID': '000474275', 'StartDate': '11/15/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}, {'FirstName': 'Robert', 'LastName': 'Byrne', 'PI_MID_INIT': 'H', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Robert H Byrne', 'EmailAddress': 'rhbyrne@usf.edu', 'NSF_ID': '000398151', 'StartDate': '11/15/1988', 'EndDate': None, 'RoleCode': 'Co-Principal Investigator'}, {'FirstName': 'Peter', 'LastName': 'Betzer', 'PI_MID_INIT': 'R', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Peter R Betzer', 'EmailAddress': 'P.Betzer (OMNET)', 'NSF_ID': '000339963', 'StartDate': '11/15/1988', 'EndDate': None, 'RoleCode': 'Co-Principal Investigator'}]
{'Name': 'University of South Florida', 'CityName': 'TAMPA', 'ZipCode': '336205800', 'PhoneNumber': '8139742897', 'StreetAddress': '4202 E FOWLER AVE', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Florida', 'StateCode': 'FL', 'CONGRESSDISTRICT': '15', 'CONGRESS_DISTRICT_ORG': 'FL15', 'ORG_UEI_NUM': 'NKAZLXLL7Z91', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF SOUTH FLORIDA', 'ORG_PRNT_UEI_NUM': None}
{'Name': 'University of South Florida Department of Marine Science', 'CityName': 'Saint Petersburg', 'StateCode': 'FL', 'ZipCode': '337015016', 'StreetAddress': '140 Seventh Avenue South', 'CountryCode': 'US', 'CountryName': 'United States', 'StateName': 'Florida', 'CountryFlag': '1', 'CONGRESSDISTRICT': '14', 'CONGRESS_DISTRICT_PERF': 'FL14'}
[{'Code': '1650', 'Text': 'BIOLOGICAL OCEANOGRAPHY'}, {'Code': '1670', 'Text': 'Chemical Oceanography'}]
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