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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.

Hypoxia ForecastPress Release
Mississippi River DischargeDissolved Oxygen Maps
Additional Maps

River discharge for 2016 was high in May, when the prediction was made, decline through the summer, with some above average flows in August to October.

Disclaimer:

• 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.