Estimating marine carbon uptake in the northeast Pacific  using a neural network approach

Duke, Patrick J.; Hamme, Roberta C.; Ianson, Debby; Landschützer, Peter; Ahmed, Mohamed M. M.; Swart, Neil C.; Covert, Paul A.

doi:https://doi.org/10.5194/bg-20-3919-2023

Articles | Volume 20, issue 18

https://doi.org/10.5194/bg-20-3919-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-20-3919-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 18

Research article

|

27 Sep 2023

Research article |

| 27 Sep 2023

Estimating marine carbon uptake in the northeast Pacific using a neural network approach

Patrick J. Duke, Roberta C. Hamme, Debby Ianson, Peter Landschützer, Mohamed M. M. Ahmed, Neil C. Swart, and Paul A. Covert

Supplement

https://doi.org/10.5194/bg-20-3919-2023-supplement

Data sets

ANN-NEP: A monthly surface pCO2 product for the Northeast Pacific open ocean from 1998-01-01 to 2019-12-31 (NCEI Accession 0277836) Patrick J. Duke, Roberta C. Hamme, Debby Ianson, Peter Landschützer, Mohamed Ahmed, Neil C. Swart, and Neil C. Covert https://doi.org/10.25921/c1w8-6v02

Global Ocean Physical Reanalysis Product, E.U. Copernicus Marine Service Information GLOBAL_REANALYSIS_PHY_001_030 E.U. Copernicus Marine Service https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_PHY_001_030/description

A Near-Real-Time Version of the Cross-Calibrated Multiplatform (CCMP) Ocean Surface Wind Velocity Data Set (https://www.remss.com/measurements/ccmp/) C. A. Mears, J. Scott, F. J. Wentz, L. Ricciardulli, S. M. Leidner, R. Hoffman, and R. Atlas https://doi.org/10.1029/2019JC015367

ESA Sea Surface Temperature Climate Change Initiative (SST_cci): Level 4 Analysis Climate Data Record, version 2.1 Merchant et al. https://climate.esa.int/en/odp/#/dashboard

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Short summary

The ocean is both impacted by climate change and helps mitigate its effects through taking up carbon from the atmosphere. We used a machine learning approach to investigate what controls open-ocean carbon uptake in the northeast Pacific open ocean. Marine heatwaves that lasted 2–3 years increased uptake, while the upwelling strength of the Alaskan Gyre controlled uptake over 10-year time periods. The trend from 1998–2019 suggests carbon uptake in the northeast Pacific open ocean is increasing.