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Dissolved oxygen and respiration rate summary, Hercules 265 Rapid Response Cruise, July 2013.

Coastal Waters Consortium (CWC)

DOI:
10.7266/N7VX0DF8
 
UDI:
R1.x139.145:0012
Last Update:
Apr 08 2015 15:08 UTC
 
Dataset Author(s):
Roberts, Brian
Point of Contact:
Roberts, Brian J.
Louisiana Universities Marine Consortium (LUMCON) / Research
8124 Highway 56
Chauvin, Louisiana  70344
USA
broberts@lumcon.edu
Funding Source:
RFP-I
Data Collection Period:
2013-07-29 to 2013-07-30

Identified Submitted Metadata Available
3 3 3 3

Abstract:

This dataset contains values for water column respiration rates and dissolved oxygen concentrations (determined both from Winkler titrations and CTD profiles) from 2-4 depths at 7 stations during a rapid response cruise following the Hercules 265 blowout in July 2013.

Purpose:

This dataset was developed as part of a rapid response effort following the Hercules 265 blowout in late July 2013. This component of the research effort addressed two main objectives: 1) determining the accuracy of DO patterns generated by CTD profiles; and 2) determining if and how water column respiration rates were altered following the blowout.

Theme Keywords:

biogeochemistry, dissolved oxygen, water column respiration

File Format:

Excel spreadsheet

Dissolved oxygen and respiration rate summary, Hercules 265 Rapid Response Cruise, July 2013.



Identification Information
Distribution Information
Metadata Maintenance Information

Metadata: 
  File identifier: 
      R1.x139.145-0012-metadata.xml
  Language: 
      eng; USA
  Character set: 
    Character set code: 
      utf8
  Hierarchy level: 
    Scope code: 
      dataset
  Metadata author: 
    Responsible party: 
      Individual name: 
          Brian Roberts
      Organisation name: 
          Louisiana Universities Marine Consortium (LUMCON)
      Position name: 
          Assistant Professor
      Contact info: 
        Contact: 
          Phone: 
            Telephone: 
              Voice: 
                  985-851-2821
              Facsimile: 
                  985-851-2874
          Address: 
            Address: 
              Delivery point: 
                  8124 Highway 56
              City: 
                  Chauvin
              Administrative area: 
                  LA
              Postal code: 
                  70344
              Country: 
                  USA
              Electronic mail address: 
                  broberts@lumcon.edu
      Role: 
        Role code: 
          pointOfContact
  Metadata author: 
    Responsible party: 
      Individual name: 
          Jason Weick
      Organisation name: 
          Louisiana Universities Marine Consortium (LUMCON)
      Position name: 
      Contact info: 
        Contact: 
          Phone: 
            Telephone: 
              Voice: 
                  985-851-2827
          Address: 
            Address: 
              Delivery point: 
                  8124 Highway 56
              City: 
                  Chauvin
              Administrative area: 
                  LA
              Postal code: 
                  70344
              Country: 
                  USA
              Electronic mail address: 
                  jweick@lumcon.edu
      Role: 
        Role code: 
          pointOfContact
  Date stamp: 
      2016-01-27T09:38:11-06:00
  Metadata standard name: 
      ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
  Metadata standard version: 
      ISO 19115-2:2009(E)
  Dataset URI: 
      https://data.gulfresearchinitiative.org/metadata/R1.x139.145:0012
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Identification info: Data identification: Citation: Citation: Title: Dissolved oxygen and respiration rate summary, Hercules 265 Rapid Response Cruise, July 2013. Alternate title: July 2013 Hercules 265 response respiration Date: Date: Date: 2014-05-26 Date type: Date type code: publication Abstract: This dataset contains values for water column respiration rates and dissolved oxygen concentrations (determined both from Winkler titrations and CTD profiles) from 2-4 depths at 7 stations during a rapid response cruise following the Hercules 265 blowout in July 2013. Purpose: This dataset was developed as part of a rapid response effort following the Hercules 265 blowout in late July 2013. This component of the research effort addressed two main objectives: 1) determining the accuracy of DO patterns generated by CTD profiles; and 2) determining if and how water column respiration rates were altered following the blowout. Status: Progress code: completed Point of contact: Responsible party: Individual name: Brian Roberts Organisation name: Louisiana Universities Marine Consortium (LUMCON) Position name: Assistant Professor Contact info: Contact: Phone: Telephone: Voice: 985-851-2821 Facsimile: 985-851-2874 Address: Address: Delivery point: 8124 Highway 56 City: Chauvin Administrative area: LA Postal code: 70344 Country: USA Electronic mail address: broberts@lumcon.edu Role: Role code: pointOfContact Point of contact: Responsible party: Individual name: Jason Weick Organisation name: Louisiana Universities Marine Consortium (LUMCON) Position name: Contact info: Contact: Phone: Telephone: Voice: 985-851-2827 Address: Address: Delivery point: 8124 Highway 56 City: Chauvin Administrative area: LA Postal code: 70344 Country: USA Electronic mail address: jweick@lumcon.edu Role: Role code: pointOfContact Descriptive keywords: Keywords: Keyword: biogeochemistry Keyword: dissolved oxygen Keyword: water column respiration Type: Keyword type code: theme Descriptive keywords: Keywords: Keyword: coastal Louisiana Keyword: Lousiana shelf Keyword: Hercules 265 rig Type: Keyword type code: place Language: eng; USA Topic category: Topic category code: oceans Topic category: Topic category code: environment Extent: Extent: Geographic element: Geographic bounding box: West bound longitude: -90.5293 East bound longitude: -90.4385 South bound latitude: 28.3008 North bound latitude: 28.485 Geographic element: BoundingPolygon: Polygon: gml:MultiPoint: gml:pointMember: Point: gml:pos: 28.485 -90.4865 gml:pointMember: Point: gml:pos: 28.3823 -90.4955 gml:pointMember: Point: gml:pos: 28.368 -90.5028 gml:pointMember: Point: gml:pos: 28.3568 -90.526 gml:pointMember: Point: gml:pos: 28.3008 -90.5293 gml:pointMember: Point: gml:pos: 28.3407 -90.4385 gml:pointMember: Point: gml:pos: 28.3872 -90.4983 Temporal element: Temporal extent: Extent: Time period: Description: ground condition Begin date: 2013-07-29 End date: 2013-07-30 Supplemental Information: Date (DD-Month-YY) - date water collected, initial (ambient) DO determined, and incubations initiated Station-site identifier Station (number) Latitude (decimal degrees) - latitude of station sampled Longitude (decimal degrees) - longitude of station sampled Cast (number) - number of cast at the station from which water samples were collected for DO and respiration rate determination Target depth (m)- meters below air-water interface that was targeted for water collection respiration rate (mmol O2 m^-3 d^-1)--rate of water column respiration (dissolved oxygen consumption) initial DO (mmol m^-3) - concentration of dissolved oxygen in BOD bottles fixed immediately after filling as determined via Winkler titrations CTD DO (mmol m^-3) - concentration of dissolved oxygen generated from CTD profiles for that depth |Water column rates of respiration were determined for 2 – 4 depths at 7 stations (8, 10 – 15) in the vicinity of the rig (total n = 23). At each depth sampled, four 300-mL biological oxygen demand (BOD) bottles were filled from the same Niskin bottle using tygon tubing inserted into the bottom of a bottle and then allowing water to overflow the bottle by 2 – 3 volumes, taking care to expel all bubbles from the sample before capping. Half of the bottles were immediately fixed (with 1mL each of manganous sulfate and alkaline iodide solutions) and half were incubated in the dark at in situ temperatures for ~24 hours before being fixed. Once stoppers were placed in each BOD bottle, deionized water was added to fill the flared top and a secondary plastic cap was used to ensure a tight seal. All fixed samples were stored in the dark prior to titrations. Dissolved oxygen concentrations in the initial and final bottles were determined using a modification of the Winkler titration method detailed in Strickland & Parson (1972). Titrations were performed on three to five 50-mL aliquots per bottle using a Mettler Toledo DL28 auto-titrator. The mean and median coefficient of variation in DO concentrations among duplicate initial and final BOD bottles was 1.04% and 0.70%, respectively. Water column respiration rates were calculated as the rate of change in DO over time, expressed as millimol O2 m-3 d-1. ||||
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Distribution info: Distribution: Distributor: Distributor: Distributor contact: Responsible party: Organisation name: Gulf of Mexico Research Initiative Position name: Contact info: Contact: Phone: Telephone: Voice: +1-361-825-3604 Facsimile: +1-361-825-2050 Address: Address: Delivery point: 6300 Ocean Drive Unit 5869 City: Corpus Christi Administrative area: Texas Postal code: 78412-5869 Country: USA Electronic mail address: griidc@gomri.org Online Resource: Online Resource: Linkage: URL: http://data.gulfresearchinitiative.org Protocol: Role: Role code: distributor Distributor format: Format: Name: Excel spreadsheet Version: File decompression technique: Distributor transfer options: Digital transfer options: Transfer size: 0.0117 Online: Online Resource: Linkage: URL: https://data.gulfresearchinitiative.org/data/R1.x139.145:0012 Protocol: https
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Metadata maintenance: Maintenance information: Maintenance and update frequency: unknown Maintenance note: This ISO metadata record was automatically generated from information provided to GRIIDC for dataset: R1.x139.143:0025
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