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2016 Shelfwide Cruise: -

The standard 2016 shelfwide cruise was cancelled because of mechanical failure of the NOAA Nancy Foster. However, there were there were several opportunities during the summer to collect data in the area of hypoxia and piece together a picture of the years hypoxic extent.

Dissolved Oxygen Maps

Two models simulations predicted the bottom-water area of hypoxia during the last week of July, the usual time of the cruise.


Hypoxia was not present along the F transect for the 22-23 August cruise, but was severely low for much of the C transect and into much deeper water than usually recorded. Several stations were anoxic, without any dissolved oxygen.


  • The final dissolved oxygen data will be corrected, as necessary, from linear regression with the Winkler titrations over a range of 0.22 to 8.43 mg/L. Initial observations indicate correction, but the f-factor for the Winkler standard remains to be verified. Any corrected data will be reflected in other derived measurements.
  • Salinity data not yet verified with PortaSal samples.
  • CTD data remain to be post-processed with ALIGN CTD to be applied.
  • Instrumentation was calibrated pre- and post-cruise according to manufacturer's specifications and standard method procedures were applied for several variables, not yet calculated, according to several LUMCON EPA-approved Quality Assurance Project Plans.
  • Data collected as part of process studies remain to be analyzed and synthesized.
  • Final QA/QC'd data will be submitted to NOAA NODC within two years of collection.