Abstract:

Data were collected from October to November, 2016 using instrument packages deployed on a deep sea lander. The lander was deployed at in an active hydrocarbon seepage field in the northern Gulf of Mexico. Water current (speed and direction) and temperature data were also collected to look at the point sources.

Suggested Citation:

Chris Martens, Howard Mendlovitz. 2018. GOM minilander ADCP data, northern Gulf of Mexico (GC767), October 11, 2016 to November 22, 2016. Distributed by: Gulf of Mexico Research Initiative Information and Data Cooperative (GRIIDC), Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7K35S4X

Purpose:

Using this data we can track methane plumes and look at the effect 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:

ADCP on Mini-Lander 1: Second deployment at GC767 "4 beam, 600 khz unit" Number of bins (cells) - 30 Size of bins (cells) - 2 meters Overlap of bins (cells) - 20% Bin 1 starts at 2 m Date (GMT); Lander Heading [Degrees]; Std Dev Heading [Degrees]; Pitch [Degrees]; Roll [Degrees]; Abs Tilt [Degrees]; Max Tilt [Degrees]; Std Dev Tilt [Degrees]; Tilt Direction [Degrees]; Charge Voltage Vtx1 [Volts]; Charge Voltage Vtx2 [Volts]; Min Input Voltage [Volts]; Input Voltage [Volts]; Input Current [mili amps]; Memory Used [Bytes]; Noise Peak Level B1 [dB]; Noise Peak Level B2 [dB]; Noise Peak Level B3 [dB]; Noise Peak Level B4 [dB]; Record Status; Ping Count; Cell Index [bin1-30]; Cell Status [bin1-30]; Horizontal Speed [cm/s -bin1-30]; Direction [Degrees -bin1-30]; North Speed [cm/s -bin1-30]; East Speed [cm/s -bin1-30]; Vertical Speed [cm/s -bin1-30]; SP Stdev Horizontal [cm/s -bin1-30]; SP Stdev AutoBeam [cm/s -bin1-30]; Strength [dB -bin1-30]; North AutoBeam [cm/s -bin1-30]; East AutoBeam [cm/s -bin1-30]; Vertical AutoBeam [cm/s -bin1-30]; Beam1 Speed [cm/s -bin1-30]; Beam2 Speed [cm/s -bin1-30]; Beam3 Speed [cm/s -bin1-30]; Beam4 Speed [cm/s -bin1-30]; Beam1 Strength [dB -bin1-30]; Beam2 Strength [dB -bin1-30]; Beam3 Strength [dB -bin1-30]; Beam4 Strength [dB -bin1-30]; Beam1 Stdev [cm/s -bin1-30]; Beam2 Stdev [cm/s -bin1-30]; Beam3 Stdev [cm/s -bin1-30]; Beam4 Stdev [cm/s -bin1-30]; Cross Difference [cm/s -bin1-30]; Beam1 Correlation Factor [cm/s -bin1-30]; Beam2 Correlation Factor [cm/s -bin1-30]; Beam3 Correlation Factor [cm/s -bin1-30]; Beam4 Correlation Factor [cm/s -bin1-30]]

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