Data based estimate of global ocean CO2 flux
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Data based estimates of global air-sea CO2 flux are an important part of the Global Carbon Project (e.g., https://doi.org/10.5194/essd-12-3269-2020). This product extends the flux estimate of doi:10.17595/20201020.001 using the grided data of CO2 observations of SOCAT 2021. We made two small changes in the input variables for training a neural network: (1) the log scaled mixed layer depth was used and (2) observed CO2 values over 1000 uatm were excluded.
Description
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Creator
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Release date
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2021/08/06
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Temporal coverage
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1990 - 2021
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Data provider
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NIES
Email: cgerdb_admin(at)nies.go.jp |
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DOI
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File format
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Data volume
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285 MB
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Version
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ver.2022.1 (Last updated: 2022/07/12)
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Language
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English
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Data Set
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Parameters
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Surface ocean CO2 concentration and air-sea CO2 flux
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| Domain |
Global
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| Time resolution |
Monthly
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| Spatial resolution |
1 x 1 degree
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| Calculation method |
Feed forward Neural Network
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Keywords
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[GCMD_Platform]
Models/Analyses > Models
[GCMD_Science]Oceans > Ocean Chemistry > Carbon Dioxide
[Free keywords]Carbon Dioxide, CO2, Ocean, Flux, Budget, Global, Neural Network, Machine Learning
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Update history
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[2022/07/12]
A new ocean CO2 trend extracted from observations in 1990-2020 was used in the model. ver.2022.1.
[2021/08/06]Data from 1980 to 2020 are released. ver.2021.1.
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Reference Information
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References
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Zeng, J., Y. Nojiri, P. Landschützer, M. Telszewski, and S. Nakaoka, 2014: A Global Surface Ocean fCO2 Climatology Based on a Feed-Forward Neural Network. J. Atmos. Oceanic Technol., 31, 1838–1849, doi:10.1175/JTECH-D-13-00137.1.
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Terms and Conditions of Use*
*By accessing or using the Service you agree to follow these Terms. If you disagree with any part of the Terms, you may not access the Service.
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| Citation format |
When this data set is referred to in publications, it should be cited in the following format.
Zeng, J (2021), Data based estimate of global ocean CO2 flux, ver.xxxx.x *1, NIES, DOI:10.17595/20210806.001, (Reference date*2: YYYY/MM/DD)
*1 The version number is indicated in the name of each data file. *2 As the reference date, please indicate the date you downloaded the files. |
Advisory Service
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Advisory service
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If you need scientific advice or expert opinion regarding the contents or scientific validity of this data set or Products derived from it, we can provide an advisory service based on an individual contract, different from the above one.
Depending on the extent of the help required, we can offer collaboration and/or supervision of the work based on the present data set. If you want to use our advisory service, contact the Data Provider. |