Too much acid in the ocean is bad news for sea life. The shell pictured here is a victim of this process

Too much acid in the ocean is bad news for sea life. Acid eats away at calcium carbonite, the primary ingredient of shells and skeletons that many ocean animals depend on for survival. The shell pictured here is a victim of this process. The normally-protective shell is so thin and fragile, it is transparent.

Ocean Acidification

Ocean acidification occurs when the ocean absorbs carbon dioxide from the atmosphere, making it more acidic. Species as diverse as scallops and coral are vulnerable to ocean acidification, which can affect the growth of their shells and skeletons.


Regional Associations

FY2012 U.S. IOOS Regional Association Ocean Acidificiation Monitoring Activities (pdf)


Alaska, AOOS

  • AOOS funds OA sampling of an existing, ongoing oceanographic time series transect (Seward Line) in the northern Gulf of Alaska two times per year to quantify the physical and biogeochemical controls on OA.
  • AOOS contributes funds to a consortium to support maintenance of OA sensors on moorings in the Bering Sea, the Chukchi Sea, and Resurrection Bay in the Gulf of Alaska.
  • Prior to FY12, AOOS funds were used to add OA sensors to an NSF-funded mooring in the Chukchi Sea, enabling it to collect OA data year-round. 


Caribbean, CaRA

  • Operation and maintenance of the NOAA PMEL MAPCO2 buoy at La Parguera.
  • Biweekly sampling at the La Parguera CO2 buoy
  • Periodic sampling to 200m depth at Caribbean Time Series Station CaTS for pH and Total Alkalinity
  • Development of a chromatographic method for Ca/Mg analysis


Central and Nortenrn California, CeNCOOS

  • Support for West Coast OA monitoring
  • Participation in CA State Water Resources Board pilot project to evaluate methodology for measuring ocean acidification in nearshore waters


Gulf of Mexico, GCOOS

  • GCOOS is supporting a joint NOAA-University of Southern Mississippi study, working with Liquid Robotics, to measure OA parameters pH and PCO2.  The project will also integrate wave glider data into the GCOOS data streams in support of the CO2 Waveglider Northern Gulf Pilot Project.  GCOOS funding will support the development and maintenance of the capacity to convert project data (including CTD, pCO2, pH, and other data) and serve them to USM and the GCOOS Data Portal in near real-time for data fusion, visualization, and dissemination.


Great Lakes, GLOS

  • None reported


Mid-Atlantic, MARACOOS

  • None reported


Northwest, NANOOS

  • NANOOS operates and maintains an OA detection observation buoy off La Push, WA, and funding from U.S. IOOS was used to support the on-line NVS application for four different shellfish growers to monitor data in support of their daily operations. 
  • Collection of meteorological, pCO2, chlorophyll, and other oceanographic observations in coastal Washington, Oregon, Puget Sound, and Willapa Bay.  In addition to support from U.S. IOOS, shellfish growers have received support for their ocean acidification monitoring from NOAA’s Ocean Acidification Program (OAP). 
  • Providing observational data to customers, including the shellfish hatcheries and growers, through the NANOOS visualization system (NVS). 


Northeast, NERACOOS

  • MAPCO2 buoy operation and data analysis (partner: U. of New Hampshire)
  • Support for the 2012 Gulf of Mexico and East Coast Carbon (GOMECC-2) cruise (the second comprehensive survey of inorganic carbon, nutrients and other biogeochemical parameters along the Gulf and East coasts of the USA, ending in Boston, MA). 


Pacific Islands, PacIOOS

  • None reported


Southern California, SCCOOS

  • Support for West Coast OOS OA monitoring, including the West Coast Governors Alliance data management effort.
  • 9 stations of CalCOFI CTD & Bottle Samples taken repetitively since 2004 at the 20 m isobath
  • Dissolved oxygen sensors added to Spray 11 underwater glider for monitoring hypoxia in coastal waters and to estimate pH and aragonite saturation
  • 3 active Ocean Acidification Buoys with the following sensors – CTD: SBE 37, o2:Zebra Tech optode, pH: SeaFET or MBARI sensor, Temp: Onset Hobotemps thermistor
  • Support for West Coast OA monitoring


Southeast Atlantic, SECOORA

  • None reported

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Functional Associations

ACT

  • FY12 – pH sensor evaluation
  • Working Group and Synthesis Paper on lessons learned for making in situ measurements of pCO2
  • In Situ pH and pCO2 Monitoring Design Requirements Workshop
  • Ocean Acidification Instrument Training Workshop (CERF 2013)
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Resources

Ocean Acidification Lightning Talk

NOAA Ocean Acidification Program


IOOS in Action

Detecting Ocean Acidification