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dc.contributor.authorKarl, David M.  Concept link
dc.coverage.spatialNorth Pacific Subtropical Gyre; 22 deg 45 min N, 158 deg W
dc.coverage.spatialwestlimit: -158; southlimit: 22.75; eastlimit: -158; northlimit: 22.75
dc.coverage.temporal19890922 - 20161015 (UTC)
dc.descriptionDataset: Primary Production
dc.description.abstractPrimary productivity measurements from the Hawaii Ocean Time-Series (HOT). Photosynthetic production of organic matter was measured by the 14C tracer method. All incubations from 1990 through mid-2000 were conducted in situ at eight depths (5, 25, 45, 75, 100, 125, 150 and 175m) over one daylight period using a free-drifting array as described by Winn et al. (1991). Starting HOT-119 (October 2000), we collected samples from only the upper six depths & modeled the lower two depths based on the monthly climatology. During 2015, all incubations were conducted in situ on a free floating, surface tethered array. Integrated carbon assimilation rates were calculated using the trapezoid rule with the shallowest value extended to 0 meters and the deepest extrapolated to a value of zero at 200 meters. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at:
dc.description.sponsorshipNSF Division of Ocean Sciences (NSF OCE) OCE-0926766
dc.publisherBiological and Chemical Oceanography Data Management Office (BCO-DMO). Contact:
dc.rightsCreative Commons Attribution 4.0
dc.titlePrimary productivity measurements from the Hawaii Ocean Time-Series (HOT) project from 1989-09-22 to 2016-10-15 at station ALOHA.

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Creative Commons Attribution 4.0
Except where otherwise noted, this item's license is described as Creative Commons Attribution 4.0