Dataset Available ERDDAP

Gulf of Mexico lander Oxygen (O2) data, northern Gulf of Mexico (GC600), March 28, 2015 to August 25, 2015

Authors: Chris Martens, Howard Mendlovitz
Published On: Feb 15 2018 16:44 UTC
DOI: https://doi.org/10.7266/N7M043WD
UDI: R4.x268.000:0087
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Project Information

Funded By:
Gulf of Mexico Research Initiative

Funding Cycle:
RFP-IV

Research Group:
Ecosystem Impacts of Oil and Gas Inputs to the Gulf-2 (ECOGIG-2)

Point of Contact

Christopher S. Martens
University of North Carolina at Chapel Hill / Department of Marine Sciences
cmartens@email.unc.edu

Data Collection Period
2015-03-28
to
2015-08-25
Theme keywords

dissolved methane concentration, temperature, current velocities, current directions, GC600

ISO 19115-2 Metadata
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Abstract:

Data were collected using instrument packages deployed on a deep sea lander. The lander was deployed at an active hydrocarbon seepage field in the northern Gulf of Mexico from March 28th to August 25th, 2015. Oxygen data was collected using optode sensors inside and out of a chimney to look at the total oxygen consumption (TOU) of the sediment. Water current (speed and direction) and temperature data were also collected to look at the point sources.

Suggested Citation:

Chris Martens, Howard Mendlovitz. 2018. Gulf of Mexico lander Oxygen (O2) data, northern Gulf of Mexico (GC600), March 28, 2015 to August 25, 2015. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7M043WD

Purpose:

Data can be used to track methane plumes and look at the effects of the surrounding community and water column. This data can also be used to target grab samples for further detailed analysis.

Data Parameters and Units:

Record (#); Date and Time (GMT); Battery voltage (V); Turbidity on seafloor (FTU); Conductivity on seafloor (S/m); Temp from Cond on seafloor (deg C); Optode #175: 100cm off seafloor (outside tube) O2 concentration (uM); Temp from Optode #175: 100cm off seafloor (outside tube) (deg C); Optode #173: 30cm of seafloor (in tube, middle height)  O2 concentration (uM); Temp from Optode #173: 30cm off seafloor (in tube, middle height) (deg C); Pressure of lander on seafloor (kPa); Temp from pressure on seafloor (deg C); DCS current Speed on floor (cm/s); DCS current Direction on seafloor (deg); Heading of lander on seafloor (deg); Tilt X of lander on seafloor (deg); Tilt Y of lander on seafloor (deg); SP Std (engineering units); Strength of DCS (db); Ping Count of DCS (#); Abs Tilt on lander (deg); Max Tilt on lander (deg); Std Tilt on lander (deg); Optode #867: 20cm off seafloor (in tube, bottom height) O2 concentration (uM); Temp from Optode #867:  20cm off bottom (in tube, bottom height) (deg C); Optode #878:  40cm (in tube, top height) O2 concentration (uM); Temp from Optode #878: 40cm of seafloor (in tube, top height) (deg C); Optode #929: 140cm off seafloor (outside tube) O2 concentration (uM); Temp from Optode #929: 140cm off seafloor (outside) (deg C); Depth (m); Salinity on seafloor (FTU)

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