<div><p>The equipment used is a current profiler (Nortek Aquadopp HR-profiler). The Aquadopp measures the flow velocity in a series of evenly-spaced vertical bins. The Aquadopp measurements have a resolution of 3 mm/s and were collected continuously at 1 <em>Hz</em>. The Aquadopp returned the velocity within 10 <em>cm</em> vertical bins, equally spaced from 0.3 to 2.2 <em>m</em> above the instrument.</p>
<p>Sampling Location Map:</p>
<p><a href="https://datadocs.bco-dmo.org/d3/data_docs/SensoryNCE/fig/fig1.png" target="_blank"><img alt="Sampling locations" src="https://datadocs.bco-dmo.org/d3/data_docs/SensoryNCE/fig/fig1_600px.jpg" style="height:547px; width:600px" /></a></p>
<p>Image courtesy of David Young</p></div>
Along-stream flux per unit width (q) at the station B Aquadopp
<div><p>This dataset contains data from an Aquadopp current profiler stationed station B, located at an oyster reef in Wassaw Sound, Georgia from November 3rd to 6th, 2014. The data include pressure, temperature, streamwise flux, cross-stream flux, and vertical flux.</p>
<p>These data were published in Young et al., 2016 (see Fig. 5) :</p>
<p>In addition to the "Get data" button above which provides various options to download the data in ASCII format, the originally submitted data in MATLAB .mat format (<a href="https://datadocs.bco-dmo.org/d3/data_docs/SensoryNCE/SensorAndRotatedQ_Filt123Q_30sec.mat">SensorAndRotatedQ_Filt123Q_30sec.mat</a>, 199 KB)</p></div>
Along-stream flux per unit width (station B Aquadopp)
<div><p>Dry bins were identified using the built-in PT and temperature gauges to estimate the water depth above the instrument. All bins in which the water depth had not reached at least the midpoint of the next highest bin were discarded. The velocity measurements in each bin were averaged over 30 <em>sec</em> intervals to smooth out turbulent velocity fluctuations. The flux-per-unit-width (q) was estimated by summing the velocity in each bin multiplied by the bin height. Flux-per-unit-width therefore corresponded to the fluid flow through a vertical line extending from the Aquadopp to the surface. An ellipse was fit to a scatter plot of the measured east and north flux components for each Aquadopp, and the major axis of the resulting ellipse was defined as the “along-stream” flow direction. Correspondingly, the minor axis is defined as the “cross-stream” direction. The horizontal flux vector was rotated to correspond to the defined along-stream and cross-stream directions.</p>
<p>BCO-DMO Data Manager Processing Notes:<br />
* added a conventional header with dataset name, PI name, version date<br />
* data extracted from MATLAB .mat files to ASCII flat files to serve in the BCO-DMO system<br />
* modified parameter names to conform with BCO-DMO naming conventions<br />
* added approximate lat and lon of sampling location to data<br />
* Time format changed from matlab datenum to Date and Time (yyyy-mm-dd,HH:MM:SS)<br />
* Data version 2 (2018-07-12) replaces data version 1 (2017-07-20) - improved metadata, added timestamp in UTC in addition to local date/time</p></div>
709402
Along-stream flux per unit width (station B Aquadopp)
2017-07-20T16:57:31-04:00
2017-07-20T16:57:31-04:00
2023-07-07T16:10:26-04:00
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Along-stream flux per unit width at station B located at an oyster reef in Wassaw Sound, Georgia in November of 2014 (SensoryNCE project)
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Weissburg, M., Kubanek, J., Webster, D. (2018) Along-stream flux per unit width at station B located at an oyster reef in Wassaw Sound, Georgia in November of 2014 (SensoryNCE project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 2) Version Date 2018-07-12 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/709402 [access date]
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