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     data   graph     files  public Dissolved N2O and aquatic nutrient concentrations from 4 field sites in Bogue Sound, North
Carolina collected from 2014 to 2015.
   ?     I   M   background (external link) RSS BCO-DMO bcodmo_dataset_720183

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv
attribute NC_GLOBAL acquisition_description String Water samples were collected on-site and transported to UNC IMS. Water samples
were collected in vented N2-sparged glass vials. N2O concentrations in the
headspace were measured using a GC. They were analyzed for nutrient
concentrations with Lachat Autoanalyzer. The 4 field sites are sites of oyster
reef and salt marsh restoration. Identified in data as UNC Institute of Marine
Sciences (IMS), Carrot Island (Carrot), NOAA Beaufort (NOAA), and Army Marsh
(Army). All sites located in Bogue Sound near Morehead City, NC.
attribute NC_GLOBAL awards_0_award_nid String 527293
attribute NC_GLOBAL awards_0_award_number String OCE-1233327
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1233327 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_0_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_0_funding_source_nid String 355
attribute NC_GLOBAL awards_0_program_manager String Dr David L. Garrison
attribute NC_GLOBAL awards_0_program_manager_nid String 50534
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String N2O and Nutrient Concentrations
M. Piehler, PI
Version 14 December 2017
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_email String info at bco-dmo.org
attribute NC_GLOBAL creator_name String BCO-DMO
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://www.bco-dmo.org/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.2d 13 Jun 2019
attribute NC_GLOBAL date_created String 2017-11-29T22:11:26Z
attribute NC_GLOBAL date_modified String 2019-03-14T20:27:57Z
attribute NC_GLOBAL defaultDataQuery String &time
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.720183.1
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/720183 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String Nutrient Autoanalyzer
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Used to determine nutrient concentrations
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 722782
attribute NC_GLOBAL instruments_0_description String Nutrient Autoanalyzer is a generic term used when specific type, make and model were not specified. In general, a Nutrient Autoanalyzer is an automated flow-thru system for doing nutrient analysis (nitrate, ammonium, orthophosphate, and silicate) on seawater samples.
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB04/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Nutrient Autoanalyzer
attribute NC_GLOBAL instruments_0_instrument_nid String 558
attribute NC_GLOBAL instruments_0_supplied_name String Lachat Autoanalyzer
attribute NC_GLOBAL instruments_1_acronym String Gas Chromatograph
attribute NC_GLOBAL instruments_1_dataset_instrument_description String Used to analyze N2O
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 722783
attribute NC_GLOBAL instruments_1_description String Instrument separating gases, volatile substances, or substances dissolved in a volatile solvent by transporting an inert gas through a column packed with a sorbent to a detector for assay. (from SeaDataNet, BODC)
attribute NC_GLOBAL instruments_1_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB02/ (external link)
attribute NC_GLOBAL instruments_1_instrument_name String Gas Chromatograph
attribute NC_GLOBAL instruments_1_instrument_nid String 661
attribute NC_GLOBAL instruments_1_supplied_name String Gas Chromatograph
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, chemical, chemistry, conc, concentration, core, CoreName, CoreNo, data, dataset, dissolved, dissolved nutrients, dmo, earth, Earth Science > Oceans > Ocean Chemistry > Phosphate, erddap, flux, management, mass, mass_concentration_of_phosphate_in_sea_water, N2O_conc_nM, N2O_conc_uM, N2O_flux, name, nh3, nox, nutrients, ocean, oceanography, oceans, office, phosphate, po4, preliminary, science, sea, season, seawater, site, statistics, u, water
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/720183 (external link)
attribute NC_GLOBAL param_mapping String {'720183': {}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/720183/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String University of North Carolina at Chapel Hill
attribute NC_GLOBAL people_0_affiliation_acronym String UNC-Chapel Hill-IMS
attribute NC_GLOBAL people_0_person_name String Michael F. Piehler
attribute NC_GLOBAL people_0_person_nid String 522931
attribute NC_GLOBAL people_0_role String Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_1_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_1_person_name String Hannah Ake
attribute NC_GLOBAL people_1_person_nid String 650173
attribute NC_GLOBAL people_1_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_1_role_type String related
attribute NC_GLOBAL project String Microbial Regulation of Greenhouse Gas N2O Emission from Intertidal Oyster Reefs
attribute NC_GLOBAL projects_0_acronym String Oyster Reef N2O Emission
attribute NC_GLOBAL projects_0_description String Extracted from the NSF award abstract:
Oyster reefs are biogeochemical hot spots and prominent estuarine habitats that provide disproportionate ecological function. Suspension-feeding eastern oysters, Crassostrea virginica, are capable of improving water quality and diminishing eutrophication by filtering nutrients and particles from the water and depositing them in the sediments. Remineralization of these deposits may enhance sedimentary denitrification that facilitates nitrogen removal in tidal estuaries. However, the scientific underpinning of oyster reef function has been challenged in various studies. In addition, recent studies of filter feeding invertebrates reported the production of nitrous oxide (N2O), a greenhouse gas, as an end product of incomplete denitrification by gut microbes. C. virginica could be another source of N2O flux from intertidal habitats. Preliminary work indicated substantial N2O production from individual oysters. The estimated N2O production from high density oyster reefs may exceed the N2O flux measured from some estuaries. With the new discovery of N2O emission and uncertainty regarding eutrophication control, the ecological value of oyster reef restoration may become equivocal.
This project will quantify N2O fluxes to understand the factors controlling N2O emission from oyster reefs. Sedimentary N processes will be examined to develop an oyster reef N model to estimate N2O emission from tidal creek estuaries relative to other N cycling processes. The PIs hypothesize that intertidal oyster reefs are a substantial source of N2O emission from estuarine ecosystems and the magnitude of emission may be linked to water quality. If substantial N2O flux from oyster reefs is validated, ecological benefits of oyster reef restoration should be reevaluated. This interdisciplinary research team includes a microbial ecologist, a biogeochemist, an ecologist and an ecosystem modeler. They will utilize stable isotope and molecular microbiological techniques to quantify oyster N2O production, elucidate microbial sources of N2O emission from oysters and sediments, and estimate seasonal variation of N2O fluxes from oyster reefs. Measurements from this study will be integrated into a coupled oyster bioenergetics-sediment biogeochemistry model to compare system level rates of N cycling on oyster reefs as a function of oyster density and water quality. Modeling results will be used to assess the relative trade-�offs of oyster restoration associated with N cycling. They expect to deliver the following end products:1) estimation of annual N2O flux from oyster reefs as an additional source of greenhouse gases from estuaries, 2) a better understanding of the environmental and microbial factors influencing N2O and N2 fluxes in tidal estuaries, 3) transformative knowledge for the effect of oyster restoration on water quality enhancement and ecosystem function, 4) direct guidance for oyster restoration projects whose goals include water quality enhancement, and 5) a modeling tool for use in research and restoration planning.
attribute NC_GLOBAL projects_0_end_date String 2015-08
attribute NC_GLOBAL projects_0_name String Microbial Regulation of Greenhouse Gas N2O Emission from Intertidal Oyster Reefs
attribute NC_GLOBAL projects_0_project_nid String 527289
attribute NC_GLOBAL projects_0_start_date String 2012-12
attribute NC_GLOBAL publisher_name String Hannah Ake
attribute NC_GLOBAL publisher_role String BCO-DMO Data Manager(s)
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v29
attribute NC_GLOBAL summary String Dissolved N2O and aquatic nutrient concentrations from 4 field sites in Bogue Sound, North Carolina collected from 2014 to 2015.
attribute NC_GLOBAL title String Dissolved N2O and aquatic nutrient concentrations from 4 field sites in Bogue Sound, North Carolina collected from 2014 to 2015.
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.5-beta
variable Season   String  
attribute Season description String Season data were collected
attribute Season ioos_category String Unknown
attribute Season long_name String Season
attribute Season units String unitless
variable Site   String  
attribute Site description String Site where data were collected
attribute Site ioos_category String Unknown
attribute Site long_name String Site
attribute Site units String unitless
variable CoreName   String  
attribute CoreName description String Core name
attribute CoreName ioos_category String Unknown
attribute CoreName long_name String Core Name
attribute CoreName units String unitless
variable CoreNo   byte  
attribute CoreNo _FillValue byte 127
attribute CoreNo actual_range byte 1, 3
attribute CoreNo description String Core ID number
attribute CoreNo ioos_category String Unknown
attribute CoreNo long_name String Core No
attribute CoreNo units String unitless
variable NOx   double  
attribute NOx _FillValue double NaN
attribute NOx actual_range double -0.003457143, 4.464285714
attribute NOx description String NOx concentration
attribute NOx ioos_category String Unknown
attribute NOx long_name String NOx
attribute NOx units String micromoles per liter
variable NH3   double  
attribute NH3 _FillValue double NaN
attribute NH3 actual_range double 0.287142857, 29.5
attribute NH3 description String NH3 concentration
attribute NH3 ioos_category String Dissolved Nutrients
attribute NH3 long_name String NH3
attribute NH3 units String micromoles per liter
variable PO4   double  
attribute PO4 _FillValue double NaN
attribute PO4 actual_range double 0.096451613, 0.674193548
attribute PO4 description String PO4 concentration
attribute PO4 ioos_category String Dissolved Nutrients
attribute PO4 long_name String Mass Concentration Of Phosphate In Sea Water
attribute PO4 units String micromoles per liter
variable TN   double  
attribute TN _FillValue double NaN
attribute TN actual_range double 6.235714286, 49.57142857
attribute TN description String TN concentration
attribute TN ioos_category String Unknown
attribute TN long_name String TN
attribute TN units String micromoles per liter
variable ON   double  
attribute ON _FillValue double NaN
attribute ON actual_range double 2.047857143, 38.57857143
attribute ON description String ON concentration
attribute ON ioos_category String Unknown
attribute ON long_name String ON
attribute ON units String micromoles per liter
variable N2O_conc_uM   double  
attribute N2O_conc_uM _FillValue double NaN
attribute N2O_conc_uM actual_range double 5.69374E-4, 0.096571994
attribute N2O_conc_uM description String N2O concentration in uM
attribute N2O_conc_uM ioos_category String Unknown
attribute N2O_conc_uM long_name String N2 O Conc U M
attribute N2O_conc_uM units String micromoles
variable N2O_conc_nM   double  
attribute N2O_conc_nM _FillValue double NaN
attribute N2O_conc_nM actual_range double 0.569374432, 96.57199419
attribute N2O_conc_nM description String N2O concentration in nM
attribute N2O_conc_nM ioos_category String Statistics
attribute N2O_conc_nM long_name String N2 O Conc N M
attribute N2O_conc_nM units String nanomoles
variable N2O_flux   double  
attribute N2O_flux _FillValue double NaN
attribute N2O_flux actual_range double -0.587346062, 0.620434182
attribute N2O_flux description String N2O concentration flux
attribute N2O_flux ioos_category String Unknown
attribute N2O_flux long_name String N2 O Flux
attribute N2O_flux units String micromoles

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.


 
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