Dataset: Tank and field turbulence
Deployment: FHL_Sutherland

Velocity measurements from the turbulence generator and off the FHL dock taken with an Acoustic Doppler Velocimeter.

Principal Investigator:

Kelly Rakow Sutherland (University of Oregon, OIMB)

Guest:

Nancy Copley (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

BCO-DMO Data Manager:

Nancy Copley (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Influence of organism-scale turbulence on the predatory impacts of a suite of cnidarian medusae (jellyfish predation in turbulence)

Current State:

Final no updates expected

Version Date:

2016-06-23

Data URL:

https://osprey.bco-dmo.org/dataset-deployment/649976/data

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Description

Related Dataset:
ADV_field

Methods & Sampling

Dataset acquisition description

Current velocity measurements were taken from the collection site at the surface using a Vectrino Acoustic Doppler Velocimeter (ADV; Nortek, Oslo, Norway), at depth between 0.5 and 5 m using in situ PIV (Katija and Dabiri, 2008). The ADV measurements were collected at a sampling rate of 100 Hz over 1-5 min intervals.

Data Processing Description

Dataset Processing Description

The TKE dissipation rate at the surface was calculated from the ADV-produced velocities in the horizontal, x, direction, u, following (Sanford, 1997) Epsilon(ADV)=(u_rms)3/Z_K where Z is the total water column depth (14 m) and κ is von Karman’s constant (0.4).

BCO-DMO Processing:

- added conventional header with dataset name, PI name, version date
- renamed parameters to BCO-DMO and BODC standards
- combined tank and field tables
- added site column
- reduced digits to right of decimal from 13 to 2
- changed 'betwn 2 and 18 ft. (0.6 and 5 m)' to '0.6-5m'

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1155084	NSF Division of Ocean Sciences

Instruments

Acoustic Doppler Velocimeter

Supplied Name:

Supplied Description:

ADV; Nortek, Oslo, Norway

Instrument Type

Generic Name: Acoustic Doppler Velocimeter

Acronym: ADV

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/384/

Generic Description:

ADV is the acronym for acoustic doppler velocimeter. The ADV is a remote-sensing, three-dimensional velocity sensor. Its operation is based on the Doppler shift effect. The sensor can be deployed either as a moored instrument or attached to a still structure near the seabed.

Reference:
G. Voulgaris and J. H. Trowbridge, 1998. Evaluation of the Acoustic Doppler Velocimeter (ADV) for Turbulence Measurements. J. Atmos. Oceanic Technol., 15, 272–289. doi: http://dx.doi.org/10.1175/1520-0426(1998)015<0272:EOTADV>2.0.CO;2

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
site	experimental setting: tank or field	unitless	site
location	location within tank or depth off dock	unitless	no_bcodmo_term
U_rms	root mean square of velocity	cm/sec	no_bcodmo_term
dissip_rate	dissipation rate of turbulence kinetic energy	m^2/s^3	no_bcodmo_term

Database

Contribute Data

Dataset: Tank and field turbulence
Deployment: FHL_Sutherland

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Tank and field turbulenceDeployment: FHL_Sutherland

Dataset acquisition description

Dataset Processing Description

Dataset: Tank and field turbulence
Deployment: FHL_Sutherland