<div><p>Water was sampled using a 5 L niskin bottle centered at 1 m with a bottle length of 0.7 m. pH was measured spectrophotometrically (Clayton and Byrne, 1993) in triplicate at standard temperature (25 degrees C) immediately following collection. pH samples were collected following recommended procedures (Dickson et al., 2007).</p>
<p><strong>References:</strong><br />
Clayton, T.D., and Byrne, R.H. 1993. Spectrophotometric seawater pH measurements: total hydrogen ion concentration scale calibration of m-cresol purple and at-sea results. Deep Sea Research Part I: Oceanographic Research Papers 40: 2115-2129. doi: <a href="http://dx.doi.org/10.1016/0967-0637(93)90048-8" target="_blank">10.1016/0967-0637(93)90048-8</a></p>
<p>Dickson, A.G., Sabine, C.L., and Christian, J.R. (eds). 2007. Guide to best practices for ocean CO2 measurements: PICES Special Publication 3.</p></div>
pH measured at the PICO time-series station from 2010 to 2012.
<div><p>Spectrophotometric pH, measured at 25 degrees C using the total hydrogen ion scale, from the Pivers Island Coastal Observatory (PICO) from 2010 to 2012.</p>
<p>Note: pH was not measured at all time points, thus, some dates have no data ('nd') in the 'pH' column.</p></div>
pH
<div><p>Quality Scores (qflag) as follows:<br />
1 = excellent (no known issues),<br />
2 = suspect,<br />
3 = poor (known reason to suspect data).</p>
<p>BCO-DMO Processing Notes:<br />
- Created 'replicate' column and re-arranged data so that replicates are in rows, not columns.<br />
- Modified parameter names to conform with BCO-DMO naming conventions.<br />
- Replaced blanks with 'nd' to indicate 'no data'.<br />
- Separated date into month, day, and year columns.</p></div>
4028
pH
2013-08-28T10:37:13-04:00
2013-08-28T10:37:13-04:00
2023-07-07T16:10:26-04:00
urn:bcodmo:dataset:4028
Spectrophotometric pH measured at the PICO time-series station (34.7181 deg N, 76.6707 deg W) from 2010 to 2012 (PICO project)
false
Johnson, Z. I., Hunt, D. (2013) Spectrophotometric pH measured at the PICO time-series station (34.7181 deg N, 76.6707 deg W) from 2010 to 2012 (PICO project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 28 Aug 2013) Version Date 2013-08-28 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/4028 [access date]
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28 Aug 2013
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2013-08-28
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