Bottom boundary layer measurements in OMP. Final report

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Description

The main role of the Benthic Acoustic Stress Sensor (BASS) tripods within the Ocean Margins Program experiments was to detect and quantify organic carbon rich particle transport off the shelf. This requires measures of the turbulent boundary layer flow and bed stress, the physical forcing of the particle transport, as well as the concentration and type of particles which are being transported. The BASS tripods were deployed at sites 17 and 26. Data from site 26 were recovered spanning three periods: Feb. 2--April 6, May 13--June 27, June 28--Aug. 18. Site 17 was occupied Feb. 12--april 11. The BASS tripods ... continued below

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6 p.

Creation Information

Gross, T.F. & Williams, A.J. November 1, 1998.

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  • Gross, T.F. Skidaway Inst. of Oceanography, Savannah, GA (United States)
  • Williams, A.J. Woods Hole Oceanographic Inst., MA (United States)

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Description

The main role of the Benthic Acoustic Stress Sensor (BASS) tripods within the Ocean Margins Program experiments was to detect and quantify organic carbon rich particle transport off the shelf. This requires measures of the turbulent boundary layer flow and bed stress, the physical forcing of the particle transport, as well as the concentration and type of particles which are being transported. The BASS tripods were deployed at sites 17 and 26. Data from site 26 were recovered spanning three periods: Feb. 2--April 6, May 13--June 27, June 28--Aug. 18. Site 17 was occupied Feb. 12--april 11. The BASS tripods were arrayed with five BASS sensors measuring detailed velocity parameters within four meters of the seabed. Velocity time series indicate a usually weak tidal flow which produces small bed stress by itself. On the occasions when a strong flow, probably the Gulf Stream, crosses the area, the bed shear stress increases dramatically to as much as 10 dyne cm{sup {minus}2}. This is competent to move unconsolidated sediments in the area. Other instruments from the tripods include: two conductivity/temperature sensor pairs, five WetStar fluorometers, thermistors, transmissometer, optical backscatterence sensors and a pressure sensor.

Physical Description

6 p.

Notes

OSTI as DE99000100

Source

  • Other Information: PBD: [1998]

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  • Other: DE99000100
  • Report No.: DOE/ER/62179--T1-Pt.3
  • Grant Number: FG03-96ER62179
  • DOI: 10.2172/666245 | External Link
  • Office of Scientific & Technical Information Report Number: 666245
  • Archival Resource Key: ark:/67531/metadc708922

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • November 1, 1998

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

Description Last Updated

  • Nov. 5, 2015, 7:42 p.m.

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Gross, T.F. & Williams, A.J. Bottom boundary layer measurements in OMP. Final report, report, November 1, 1998; United States. (digital.library.unt.edu/ark:/67531/metadc708922/: accessed November 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.