<div><p><strong>See complete methodology in Haskell et al. (2017). In summary:</strong><br />
This study is part of an effort aimed at characterizing the biological response to upwelling at SPOT on 21 cruises between January 2013 and June 2014; the Upwelling Regime In-Situ Ecosystem Efficiency (Up.R.I.S.E.E.) study.</p>
<p><strong>O2/Ar and Triple Oxygen Isotopes (TOI)</strong>: Samples for O2/Ar and TOI analysis were collected from Niskin bottles in 300 or 500 mL glass flasks equipped with airtight Louwers-Hapert valves (with three high-vacuum greased Viton O-rings in valve stem) and sidearms. Each bottle was poisoned with 150 uL saturated HgCl2, dried in an oven at 50 degrees C, preevacuated on a rotary vane vacuum pump (Pfeiffer Duo 2.5) for at least 5 min before evacuation on a stainless steel gas line using a turbo drag dry high vacuum pump (Alcatel Drytel 31). A vacuum of <1 mtorr was reached and held for at least 5 min, then the bottle was weighed. After sampling, the samples were equilibrated with the headspace for ~12–24 h on a shaking table at University of Southern California (USC), weighed, and drained. The headspace was analyzed in the laboratory of R. Stanley (Woods Hole Oceanographic Institution) for O2 and Ar by peak jumping and for 18O16O (m/z 34) and 17O16O (m/z 33) using a Thermofisher MAT 253 multicollector isotope ratio mass spectrometry. The TOI values are reported relative to atmospheric air as a standard, for which clean Woods Hole air stored in an electropolished 2 L stainless steel cylinder was used. </p></div>
17D and isotopic ratios
<div><p>17D and isotopic ratios measured for each cruise. Measurements were made at the San Pedro Ocean Time-series (SPOT) station (33 33'N, 118 24'W). Data are also published in Table S1 in the following publication:<br />
Haskell, W. Z.,et al. 2017. Annual cyclicity in export efficiency in the inner Southern California Bight. Global Biogeochemical Cycles, 31. doi:<a href="http://dx.doi.org/10.1002/2016GB005561" target="_blank">10.1002/2016GB005561</a></p></div>
17D and isotopic ratios
<div><p>BCO-DMO Processing:<br />
-re-formatted into one table;<br />
-modified parameter names to conform with BCO-DMO naming conventions;<br />
-formatted date to yyyy-mm-dd;<br />
-rounded values to 13 digits after decimal (according to PI);<br />
-added site name, lat, and lon from information on metadata form.</p></div>
685820
17D and isotopic ratios
2017-03-24T15:00:02-04:00
2017-03-24T15:00:02-04:00
2023-07-07T16:10:26-04:00
urn:bcodmo:dataset:685820
17D and isotopic ratios from R/V Yellowfin cruises to the San Pedro Ocean Time-series (SPOT) station in 2013 and 2014
17D and isotopic ratios from R/V Yellowfin cruises to the San Pedro Ocean Time-series (SPOT) station in 2013 and 2014.
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Haskell, W., Prokopenko, M., Hammond, D. E. (2017) 17D and isotopic ratios from R/V Yellowfin cruises to the San Pedro Ocean Time-series (SPOT) station in 2013 and 2014. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2017-03-24 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/685820 [access date]
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No DOI Reason: Link in data header