<div><p>Continuous flow pumping experiments were conducted inside the kelp forest from a vessel within 15-m of the kelp mooring to obtain high temporal and vertical resolution biogeochemical data. Two experiments were conducted (July 11-13 and July 18-20, 2018) that overlapped with the kelp mooring pH timeseries data.</p>
<p>Seawater was pumped from five depths spanning the water column using five sections of equal-length polypropylene tubing (3/8” ID, 1/2” OD) deployed over the side of a moored vessel. The depths presented here include the surface (valve #5), 6 mab (2-5 mbs, valve #3), and 1 mab (7-10 mbs, valve #1). A custom auto sampling manifold introduced water from each of the 5 tubes to a continuous flow system at 5-minute intervals, allowing the full suite of depths to be sampled every 25 minutes for the duration of each experiment (similar to Koweek et al., 2015a; Koweek et al., 2015b; Teneva et al., 2013). Seawater was drawn into the continuous flow system from each depth by a peristaltic pump operating at 2L/min. The continuous flow system included a DuraFET pH sensor measuring pH at 20 samples per min .</p>
<p> </p></div>
<div><p>These data are published in Hirsh <em>et al., </em>see related publications section.</p></div>
Kelp forest pumping data - pH
<div><p>pH samples were drawn from whichever depth was being actively pumped. The pump delivered seawater to the pH electrode. The pH data was later matched to the appropriate depth using the measurement timestamps. Data processing was completed in Matlab.</p>
<p>BCO-DMO processing notes:</p>
<ul><li>Converted Timestap to ISO format, and timezone from Pacific Standard Time (PST) to UTC</li>
</ul></div>
826162
Kelp forest pumping data - pH
2020-10-07T12:21:50-04:00
2020-10-07T12:21:50-04:00
2023-07-07T16:10:26-04:00
urn:bcodmo:dataset:826162
pH measured in situ over depth in the kelp forest (36° 37.3’ N, 121° 54.1’ W) recorded in July 2018.
pH measured in situ over depth in the kelp forest (36° 37.3’ N, 121° 54.1’ W) recorded in July 2018.
false
Hirsh, H., Nickols, K. J., Takeshita, Y., Traiger, S., Monismith, S. G., Mucciarone, D., Dunbar, R. B. (2020) pH measured in situ over depth in the kelp forest (36° 37.3’ N, 121° 54.1’ W) recorded in July 2018. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2020-10-07 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.826162.1 [access date]
true
1
10.26008/1912/bco-dmo.826162.1
false
ocean acidification
kelp forest
biogeochemistry
spatiotemporal variability
upwelling
in situ pumping
pH
2020-10-07
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http://lod.bco-dmo.org/id/dataset/826162
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OSPREY
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