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Dataset Overview | National Centers for Environmental Information (NCEI)

ANN-NEPc: A monthly surface pCO2 data product for the Northeast Pacific coastal ocean from 1998-01-01 to 2019-12-31 (NCEI Accession 0290365)

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ANN-NEPc is a gridded surface ocean pCO2 data product for the Northeast Pacific coastal ocean. It was created using non-linear functional relationships between pCO2 observations from the Surface Ocean CO2 Atlas v2021 as well as additional data from a Fisheries and Oceans Canada February 2019 Line P cruise, a West Coast Ocean Acidification cruise from July and August 2010, and La Perouse cruises from May 2007 and May 2010, and a variety of independent predictor variables (see supplemental information) using an artificial neural network self-organizing-map-feed-forward-network approach described and evaluated in Duke et al. (2024). This file contains monthly pCO2 and air-sea CO2 flux fields from January 1998 to December 2019 at 1/12 degree by 1/12 degree (approximately 9 km by 5km; latitude by longitude) spatial resolution within typically < 6 to 300 km of shore. The air-sea CO2 fluxes are computed from the air-sea CO2 partial pressure difference and a bulk gas transfer formulation following Duke et al. (2024).
  • Cite as: Duke, Patrick J.; Hamme, Roberta C.; Ianson, Debby; Landschützer, Peter; Swart, Neil C.; Covert, Paul (2024). ANN-NEPc: A monthly surface pCO2 data product for the Northeast Pacific coastal ocean from 1998-01-01 to 2019-12-31 (NCEI Accession 0290365). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/4jvk-y051. Accessed [date].
gov.noaa.nodc:0290365
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Distributor NOAA National Centers for Environmental Information
+1-301-713-3277
NCEI.Info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Time Period 1998-01-01 to 2019-12-31
Spatial Bounding Box Coordinates
West: -155
East: -120
South: 45
North: 62
Spatial Coverage Map
General Documentation
Associated Resources
  • Duke, P. J., Hamme, R. C., Ianson, D., Landschützer, P., Ahmed, M. M. M., Swart, N. C., Covert, P. A.: High-resolution Neural Network Demonstrates Strong CO2 Source-Sink Juxtaposition in the Coastal Zone, JGR Oceans, submitted, 2024.
  • NOAA National Centers for Environmental Information (2022). Ocean Carbon and Acidification Data System (OCADS). NOAA National Centers for Environmental Information. https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
Publication Dates
  • publication: 2024-03-23
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Historical archive - data has been stored in an offline storage facility
Data Update Frequency As needed
Supplemental Information
This data package (Submission ID: BHE12VV0E) was acquired by NCEI from the Scientific Data Integration System (SDIS) at the NOAA Pacific Marine Environmental Laboratory (PMEL) in accordance with the archival submission agreement between NCEI and PMEL.
Purpose This file contains continuous, regional, high-resolution monthly gridded surface ocean pCO2 estimates and associated air-sea CO2 fluxes for the Northeast Pacific coastal ocean. The estimates were created to quantify air-sea CO2 flux in the coastal zone, compare to the open ocean, and characterize variability over seasonal, interannual, decadal, and long-term trend. Surface ocean pCO2 variability can help inform future observation infrastructure in the region. The air-sea CO2 fluxes can act as a critical tool for policymakers to evaluate commercial and economic interests in proposed marine CO2 removal projects in the coastal ocean off the west coast of Canada and southern Alaska. Observation-based air-sea CO2 flux baselines can ensure proposed marine carbon dioxide removal projects are real, permanent, measurable, and verifiable. The product created here can help build knowledge-to-action pathways for both regional governments offering observation-based marine carbon uptake research that supports actionable climate change mitigation decision making.
Use Limitations
  • accessLevel: Public
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: Duke, Patrick J.; Hamme, Roberta C.; Ianson, Debby; Landschützer, Peter; Swart, Neil C.; Covert, Paul (2024). ANN-NEPc: A monthly surface pCO2 data product for the Northeast Pacific coastal ocean from 1998-01-01 to 2019-12-31 (NCEI Accession 0290365). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/4jvk-y051. Accessed [date].
Cited Authors
Principal Investigators
Contributors
Resource Providers
Publishers
Acknowledgments
  • Funding Information: Natural Sciences and Engineering Research Council of Canada (NSERC) through the Advancing Climate Change Science in Canada program (Quantifying and Predicting Canada's Marine Carbon Sink, ACCPJ 536173-18)
  • Funding Information: Fisheries and Oceans Canada's (DFO) Aquatic Climate Change Adaptation Service Program (Line-P underway pCO2 measurements, 96036)
  • Funding Information: Fisheries and Oceans Canadac(DFO) and National Oceanic and Atmospheric Administration (NOAA) Ocean Acidification Collaborative Funding Initiative (Estimating Air-sea Carbon Dioxide Fluxes in the Coastal Gulf of Alaska using a Machine Learning Approach, 4500056905)
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Global Change Master Directory (GCMD) Science Keywords OCADS Study Type
  • Model output
Provider Variable Abbreviations
  • FCO2
  • pCO2
Data Center keywords NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS Global Change Master Directory (GCMD) Data Center Keywords
Platform keywords NODC PLATFORM NAMES THESAURUS
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords Provider Geographic Names
  • Coastal Gulf of Alaska
  • North Pacific Ocean
Project keywords NODC PROJECT NAMES THESAURUS Ocean Acidification Search Keywords
  • Ocean Acidification Program (OAP)
  • Ocean Carbon and Acidification Data System (OCADS) Project
Research Projects
  • Quantifying and Predicting Canada's Marine Carbon Sink
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Duke, Patrick J.; Hamme, Roberta C.; Ianson, Debby; Landschützer, Peter; Swart, Neil C.; Covert, Paul (2024). ANN-NEPc: A monthly surface pCO2 data product for the Northeast Pacific coastal ocean from 1998-01-01 to 2019-12-31 (NCEI Accession 0290365). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/4jvk-y051. Accessed [date].
Access Constraints
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Fees
  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Lineage information for: dataset
Processing Steps
  • 2024-03-23T13:31:47Z - NCEI Accession 0290365 v1.1 was published.
Output Datasets
Lineage information for: dataset
Processing Steps
  • Parameter or Variable: sea surface partial pressure of CO2; Abbreviation: pCO2; Unit: muatm; Observation type: Other; Measured or calculated: Calculated; Sampling instrument: Carbon dioxide (CO2) gas analyzer (e.g., LICOR); Uncertainty: 49 muatm; Researcher name: Patrick J. Duke; Researcher institution: University of Victoria.
  • Parameter or Variable: air-sea CO2 flux density; Abbreviation: FCO2; Unit: mol/m2/yr; Observation type: Other; Detailed sampling and analyzing information: convention: negative (positive) values represent ocean uptake (outgassing). calculation: based on solubility from Weiss (1974), gas transfer velocity as a function of wind‐speed from Cross‐Calibrated Multiplatform ocean surface wind data and gas transfer coefficient from Wanninkhof (2014), and the gradient between pCO2 in the surface ocean and the atmosphere.; Uncertainty: ±0.18 mol/m2/yr .
Acquisition Information (collection)
Instrument
  • carbon dioxide (CO2) gas analyzer
Platform
  • VARIOUS CHARTERED VESSELS
Last Modified: 2024-05-08T12:37:58Z
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