Abstract:

A moored Acoustic Doppler Current Profiler measured current velocity as a part of operations conducted in the northern Gulf of Mexico, in Bureau of Energy Management (BOEM) lease block GC600. Data were collected from 2012-04-15 to 2015-04-21. The ADCP was moored at 27.375483°N, -90.5138°E in 1382 m of water to measure velocities at the bottom of a sediment trap. Sediment trap contents can be found in related datasets under GRIIDC Unique Dataset Identifiers (UDIs): R4.x268.000:0053 (doi: 10.7266/N7JW8BXM), R4.x268.000:0054 (doi: 10.7266/N7CR5RQT), R4.x268.000:0055 (doi: 10.7266/N7VT1QGS), and R4.x268.000:0056 (doi: 10.7266/N7BR8QKF). Current velocities measured at lease blocks OC26 and AT357 are available in related datasets UDIs: R4.x268.000:0063 (doi: 10.7266/n7-5s8a-bs75) and R4_x268_0000064 (doi: 10.7266/n7-der9-1m91), respectively.

Suggested Citation:

Diercks, Arne R.. 2021. Moored ADCP velocity measurements - Green Canyon, Gulf of Mexico, 2012-04-15 to 2015-04-21. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/n7-jebs-nr36

Purpose:

Current measurements at the base of sediment deployed on a long-term mooring in the Bureau of Energy Management (BOEM) block GC600.

Data Parameters and Units:

Ensemble number [enum], Year [YY], Month [MM], Day [DD], Hour [HH], Minute [MM], Seconds [SS], Echo Amplitude (27 bins, [counts]); Correlation (27 bins, [counts]); Velocity, Eastward direction (27 bins, [mm/s]); Northward velocity [27 bins, [mm/s]); Vertical velocity (27 bins, [mm/s]), Error on velocity (27 bins, [mm/s]), Velocity magnitude (27 bins, [mm/s]), Velocity direction (27 bins, [degrees, true]).

Methods:

The ADCP was moored at 27.375483°N, -90.5138°E in 1382 m of water. Bin sizes were 4 m, measuring between 6.4 and 110.2 m above the bottom.

Instruments:

300 kHz Workhorse Sentinel ADCP (RD Instruments)

Individual Files: