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Ocean Acidification Product Suite

Metadata Updated: March 22, 2025

Scientists within the ACCRETE (Acidification, Climate, and Coral Reef Ecosystems Team) Lab of AOML_s Ocean Chemistry and Ecosystems Division (OCED) have constructed a tool to monitor ocean acidification over the wider Caribbean and Gulf of Mexico. This tool utilizes satellite data and a data-assimilative hybrid model to map the components of the carbonate system of surface water. This effort represents an update to the experimental Ocean Acidification Product Suite (OAPS) developed by Coral Reef Watch (http://coralreefwatch.noaa.gov/satellite/oa/index.php). To resolve the seawater carbonic acid system, we use the partial pressure of CO2 (pCO2) and pH. Surface pCO2 is approximated by taking total tropospheric column CO2 from the AIRS mid-tropospheric CO2 and AMSU instruments on board the Aqua satellite (http://disc.sci.gsfc.nasa.gov/AIRS/data-holdings/by-data-product-v5/AIRX3C2M) and adjusting it for the marine boundary layer by replacing the annual cycle of the observed AIRS data with that from the NOAA Marine Boundary Layer (http://www.esrl.noaa.gov/gmd/ccgg/mbl/). Following this adjustment, seawater pCO2 is estimated using an empirical model relating the differential between sea surface and atmospheric CO2 partial pressure to changes in CO2 gas solubility (K0). Total alkalinity (TA) is calculated using the Subtropical/Tropical algorithm from Lee et al. (2006). Sea surface temperature is derived from an optimal interpolated product at 9km resolution (http://www.remss.com/measurements/sea-surface-temperature/oisst-description) and salinity is obtained from a data-assimilative hybrid model (HYCOM https://hycom.org/). These measurements, together with pCO2 and TA, allow calculation the complete carbonate system. Data are updated monthly at a 9km resolution. Initial results indicate good agreement with observed values from cruises and MAPCO2 buoys, but further testing and refinement of algorithms is planned.

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License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Date March 16, 2025
Metadata Created Date October 19, 2024
Metadata Updated Date March 22, 2025
Reference Date(s) October 1, 2014 (publication)
Frequency Of Update monthly

Metadata Source

Harvested from CoRIS FGDC Metadata

Additional Metadata

Resource Type Dataset
Metadata Date March 16, 2025
Metadata Created Date October 19, 2024
Metadata Updated Date March 22, 2025
Reference Date(s) October 1, 2014 (publication)
Responsible Party NOAA AOML OCED (Point of Contact)
Contact Email
Guid metadata_OA_rev2
Access Constraints Use Constraints: Not intended for legal use. Data may contain inaccuracies., Access Constraints: none
Bbox East Long -60.0
Bbox North Lat 30.0
Bbox South Lat 14.0
Bbox West Long -95.0
Coupled Resource
Frequency Of Update monthly
Harvest Object Id 7496e914-34fc-4838-8ba7-e21a8366c8e8
Harvest Source Id d96f14c5-3e35-4b0a-a3b8-9392afeb50fa
Harvest Source Title CoRIS FGDC Metadata
Licence NOAA makes no warranty regarding these data and images, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA cannot assume liability for any damages caused by any errors or omissions in these images, nor as a result of the failure of these data to function on a particular system.
Lineage
Metadata Language eng; USA
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-95.0, 14.0], [-60.0, 14.0], [-60.0, 30.0], [-95.0, 30.0], [-95.0, 14.0]]]}
Progress underDevelopment
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2014-01-01

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