Benthic Fluxes and Denitrification in Continental Shelf and Slope Sediments
{'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'}
Studies will be continued of benthic flux and benthic                      metabolism in continental shelf and slope sediments.  These                     sediments frequently underlie areas of high primary production                  and this coupled with a short transit distance to the bottom                    results in high organic rain rates to the sediments.                            Consequently, continental margin sediments play an important role               in controlling water column distributions and global balances of                several elements.  Benthic fluxes and processes related to the                  major bioactive elements will be measured to evaluate the                       importance of these processes in global elemental budgets.                      Specifically, three questions will be addressed:  1) what are                   carbon oxidation rates and associated benthic fluxes in                         continental shelf and slope sediments, 2) how important is                      denitrification in continental shelf and slope sediments in the                 marine combined nitrogen budget and, 3) how important are                       bioturbation and irrigation in enhancing and modifying benthic                  fluxes.  The proposed work consists of modification of the                      existing benthic flux chamber Tripod for use as a free-vehicle.                 Field work will focus on the Washington State and Mexican                       continental margins.  Due to the lack of oxygen in the overlying                waters of the latter, comparison of the two areas will describe                 the importance of benthic macrofauna in flux enhancement and                    modification.
[{'FirstName': 'Allan', 'LastName': 'Devol', 'PI_MID_INIT': 'H', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Allan H Devol', 'EmailAddress': 'devol@u.washington.edu', 'NSF_ID': '000317046', 'StartDate': '02/01/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}, {'FirstName': 'James', 'LastName': 'Murray', 'PI_MID_INIT': 'W', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'James W Murray', 'EmailAddress': 'jmurray@u.washington.edu', 'NSF_ID': '000446526', 'StartDate': '02/01/1989', 'EndDate': None, 'RoleCode': 'Co-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': '1650', 'Text': 'BIOLOGICAL OCEANOGRAPHY'}, {'Code': '1670', 'Text': 'Chemical Oceanography'}]
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