Marine organism concentrations, carbonate chemistry variables, and nutrient concentrations from Atlantis ecosystem model simulation output in the California Current from 2013-01-01 to 2053-12-31 to understand vulnerability of California current food webs and economics to ocean acidification (NCEI Accession 0131198)
This dataset contains the model output of a study to evaluate likely economic and ecological outcomes of ocean acidification in the California Current. Specifically, we have archived netCDF output files from simulations that accomplish the following:
a) Use a Regional Ocean Modeling System (ROMS) to predict present and future spatial projections of ocean acidification, as well as salinity, currents, and upwelling. ROMS was coupled to global circulation models (GFDL ESM2M) and IPCC CO2 scenarios.
b) Build on previous literature reviews and ongoing experiments to develop scenarios for the biological response of calcifying benthic organisms (e.g., mollusks, clams, brittle stars) to pH.
c) Use an Atlantis ecosystem model to project these direct impacts of acidification on lower trophic levels, the resulting food web-mediated response of harvested and protected stocks, and catches by US West Coast fisheries. Atlantis is driven by dynamic, spatially explicit fields from ROMS. See "Technical Documentation" here: http://www.nwfsc.noaa.gov/research/divisions/cb/ecosystem/marineecology/aem.cfm
Four separate netCDF output files from Atlantis are provided here. They are 50 year projections of ecosystem model dynamics. These are 1) 2010sConditionsNopHResponse, which repeats or loops ocean conditions during the 2010s, with no effect of pH on organism biology 2) 2060sConditionsNopHResponse, which repeats or loops ocean conditions during the 2060s, with no effect of pH on organism biology 3) 2010sConditionsWithpHResponse, which repeats or loops ocean conditions during the 2010s, but with effect of pH on organism biology of calcifying benthic groups 4) 2060sConditionsWithpHResponse, which repeats or loops ocean conditions during the 2010s, with no effect of pH on organism biology.
a) Use a Regional Ocean Modeling System (ROMS) to predict present and future spatial projections of ocean acidification, as well as salinity, currents, and upwelling. ROMS was coupled to global circulation models (GFDL ESM2M) and IPCC CO2 scenarios.
b) Build on previous literature reviews and ongoing experiments to develop scenarios for the biological response of calcifying benthic organisms (e.g., mollusks, clams, brittle stars) to pH.
c) Use an Atlantis ecosystem model to project these direct impacts of acidification on lower trophic levels, the resulting food web-mediated response of harvested and protected stocks, and catches by US West Coast fisheries. Atlantis is driven by dynamic, spatially explicit fields from ROMS. See "Technical Documentation" here: http://www.nwfsc.noaa.gov/research/divisions/cb/ecosystem/marineecology/aem.cfm
Four separate netCDF output files from Atlantis are provided here. They are 50 year projections of ecosystem model dynamics. These are 1) 2010sConditionsNopHResponse, which repeats or loops ocean conditions during the 2010s, with no effect of pH on organism biology 2) 2060sConditionsNopHResponse, which repeats or loops ocean conditions during the 2060s, with no effect of pH on organism biology 3) 2010sConditionsWithpHResponse, which repeats or loops ocean conditions during the 2010s, but with effect of pH on organism biology of calcifying benthic groups 4) 2060sConditionsWithpHResponse, which repeats or loops ocean conditions during the 2010s, with no effect of pH on organism biology.
Dataset Citation
- Cite as: Kaplan, Isaac C. (2015). Marine organism concentrations, carbonate chemistry variables, and nutrient concentrations from Atlantis ecosystem model simulation output in the California Current from 2013-01-01 to 2053-12-31 to understand vulnerability of California current food webs and economics to ocean acidification (NCEI Accession 0131198). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v5f47m5v. Accessed [date].
Dataset Identifiers
ISO 19115-2 Metadata
gov.noaa.nodc:0131198
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Ordering Instructions | Contact NCEI for other distribution options and instructions. |
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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 | 2013-01-01 to 2053-12-31 |
Spatial Bounding Box Coordinates |
West: -137.74
East: -114.07
South: 25.78
North: 51.2
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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 | Basics of understanding variable names: Biological variables for living organisms have the suffix "N", "Nums","ResN", or "StructN". "N" is nitrogen concentration in mg N/m^3, within each model polygon and timestep. Note that this is a proxy for biomass -- if you want to know how many tons of fish you have, you translate from N concentration to fish biomass. Nitrogen is reported for all living groups (as a proxy for biomass). Invertebrates are only modeled in terms of biomass or Nitrogen, not as indivividuals. All vertebrates are modeled in terms of numbers in each age class. In each variable name, "1" indicates the first age class, "2" the second, up to "10" which is the oldest age class. Since vertebrates are modeled as number per age class, we have variables (for each polygon and timestep) which represent "Nums" (numbers of individuals), "ResN" (weight of meat and soft tissue"), "StructN" (weight of bones and hard parts). One exception is invertebrates that live in the sediment (clams, worms etc.) which are in units of mg N/m2. Physical variables for water volume or flux are m3, depth variables are in m, habitat types (reef, flat, soft, canyon, and "cover") are in proportion, salt is ppt. pH is in log(H) units as is expected. In this accession, NCEI has archived multiple versions of these data. The latest (and best) version of these data has the largest version number. |
Purpose | California Current Ecosystem model output, forced by IPCC emissions scenario RCP8.5 and GFDL ESM2M. See README_VariablesInAtlantis_OceanAcidfification_NetcdfOutput.txt |
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Last Modified: 2024-02-08T23:44:02Z
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For questions about the information on this page, please email: ncei.info@noaa.gov