Dataset: A monthly gridded oxygen product for a Labrador Sea basin transect from August 2020 to July 2022

Name: A monthly gridded oxygen product for a Labrador Sea basin transect from August 2020 to July 2022
Published: 2026-05-14
Keywords: dissolved oxygen, oceans

ValidatedFinal no updates expectedDOI: 10.26008/1912/bco-dmo.995975.1Version 1 (2026-05-14)Dataset Type:model resultsLicense:CC-BY-4.0

Principal Investigator: Jaime B. Palter (University of Rhode Island)

Co-Principal Investigator: David P. Nicholson (Woods Hole Oceanographic Institution)

Scientist: Una Kim Miller (University of Rhode Island)

Student, Contact: Ellen Park (Woods Hole Oceanographic Institution)

BCO-DMO Data Manager: Karen Soenen (Woods Hole Oceanographic Institution)

Project: Collaborative Research: Gases in the Overturning and Horizontal circulation of the Subpolar North Atlantic Program (GOHSNAP) (GOHSNAP)

Abstract

This is a monthly gridded oxygen product for a transect across the Labrador Sea from August 2020 to July 2022, which was designed to calculate oxygen transport across this line. This product is created using a random forest regression trained on data from 60 carefully-calibrated oxygen optodes deployed along this line during this period. This algorithm was validated using both ship CTD and BGC-Argo oxygen profiles. The transect follows the OSNAP West line and provides mean monthly oxygen values across the entire water column.

Spatial Extent: N:60.19 E:-45.09 S:52.02 W:-56.88
Temporal Extent: 2020-08-15 - 2022-07-15
Transect across Labrador Sea (OSNAP West line) from surface to bottom

48

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12

Downloads

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Summary of datasets used for model training and testing. Full citation and doi links of these datasets can be found in the "Related Dataset" section below.

Training and testing the random forest (RF) model

Mean, daily oxygen values from 60 calibrated optodes - GOHSNAP moored oxygen timeserie (Miller et al., 2026)

Predictor variables

Co-located CTD data associated with GOHSNAP moored oxygen timeseries (Miller et al., 2026)
OSNAP gridded temperature and salinity fields (Fu et al., 2025)
GEBCO 2025 Gridded Bathymetry Data (GEBCO Bathymetric Compilation Group 2025 (2025)

Validation

AR45 CTD oxygen profiles (Fogaren & Palevsky, 2024)
AR46 CTD oxygen profiles (Fogaren & Palevsky, 2023)
AR69-01 CTD oxygen profiles (Fogaren & Palevsky, 2023)
AR69-03 CTD oxygen profiles (Fogaren & Palevsky, 2024)
MSM94 CTD oxygen profiles (Karstensen & Krahmann, 2023)
M184 CTD oxygen profiles (Karstensen & Krahmann, 2025)
BGC-Argo oxygen profiles (Argo, 2026)

Bias correction

World Ocean Atlas oxygen data, version 2018 (Reagan et al., 2023)

Related Datasets

IsRelatedTo

Dataset: https://doi.org/10.17882/42182
Relationship Description:

BGC-Argo oxygen profiles within +/- 3 degrees latitude and +/- 1.5 degrees longitude of the OSNAP West line with data with quality-control flags of 1, 2, or 8 (n = 219 profiles) used for model validation.

Argo. (2026). Argo float data and metadata from Global Data Assembly Centre (Argo GDAC) [Dataset]. SEANOE. https://doi.org/10.17882/42182

IsRelatedTo

Dataset: https://www.ncei.noaa.gov/archive/accession/NCEI-WOA18
Relationship Description:

Used as model bias correction.

Boyer, Tim P.; García, Hernán E.; Locarnini, Ricardo A.; Zweng, Melissa M.; Mishonov, Alexey V.; Reagan, James R.; Weathers, Katharine A.; Baranova, Olga K.; Paver, Christopher R.; Seidov, Dan; Smolyar, Igor V. (2018). World Ocean Atlas 2018. [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/NCEI-WOA18. Accessed [date]

IsRelatedTo

Dataset: Bottle-calibrated dissolved oxygen profiles
Relationship Description:

Dataset used for validation: cruise AR-46 (n = 18 profiles) and AR69-01 (n = 14 profiles)

Fogaren, K. E., Palevsky, H. I. (2023) Bottle-calibrated dissolved oxygen profiles from yearly turn-around cruises for the Ocean Observations Initiative (OOI) Irminger Sea Array 2014 – 2022. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2023-07-19 doi:10.26008/1912/bco-dmo.904721.1

IsRelatedTo

Dataset: Bottle-calibrated Dissolved Oxygen Profiles
Relationship Description:

Dataset used for validation: cruise AR-45 (n = 150 profiles) and AR69-03 (n = 113 profiles)

Fogaren, K. E., Palevsky, H. I. (2024) Bottle-calibrated dissolved oxygen (DO) profiles from US Overturning in the Subpolar North Atlantic Program (OSNAP) cruises in 2020 and 2022 (AR45 and AR69-03). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2024-08-30 doi:10.26008/1912/bco-dmo.933743.1

IsRelatedTo

Dataset: https://doi.org/10.35090/gatech/78023
Relationship Description:

Daily and monthly, gap-free, gridded temperature and salinity fields across the OSNAP West and East lines.

Fu, Y., Lozier, M. S., Bower, A. S., Burmeister, K., Biló, T. C., Cyr, F., et al. (2025). Meridional Overturning Circulation Observed by the Overturning in the Subpolar North Atlantic Program (OSNAP) Array from August 2014 to July 2022. Georgia Tech Digital Repository. https://doi.org/10.35090/gatech/78023

Related Publications

Methods

Miller, U. K., Fogaren, K. E., Atamanchuk, D., Johnson, C., Koelling, J., Le Bras, I., Lindeman, M., Nagao, H., Nicholson, D. P., Palevsky, H., Park, E., Yoder, M., & Palter, J. B. (2024). Oxygen optodes on oceanographic moorings: recommendations for deployment and in situ calibration. Frontiers in Marine Science, 11. https://doi.org/10.3389/fmars.2024.1441976

Methods

Thierry Virginie, Bittig Henry, The Argo-Bgc team (2025). Argo quality control manual for dissolved oxygen concentration. Argo-BGC group. https://doi.org/10.13155/46542

References

Overturning in the Subpolar North Atlantic Program. (n.d.). OSNAP. https://www.o-snap.org/

Software

Ellen Park. (2026). ellenrpark/gohsnap_rf: v1.0.0 (Version v1.0.0) [Computer software]. Zenodo. https://doi.org/10.5281/ZENODO.19486861

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Dataset: A monthly gridded oxygen product for a Labrador Sea basin transect from August 2020 to July 2022

ValidatedFinal no updates expectedDOI: 10.26008/1912/bco-dmo.995975.1Version 1 (2026-05-14)Dataset Type:model resultsLicense:CC-BY-4.0

Principal Investigator: Jaime B. Palter (University of Rhode Island)

Co-Principal Investigator: David P. Nicholson (Woods Hole Oceanographic Institution)

Scientist: Una Kim Miller (University of Rhode Island)

Student, Contact: Ellen Park (Woods Hole Oceanographic Institution)

BCO-DMO Data Manager: Karen Soenen (Woods Hole Oceanographic Institution)

Project: Collaborative Research: Gases in the Overturning and Horizontal circulation of the Subpolar North Atlantic Program (GOHSNAP) (GOHSNAP)

Abstract

Spatial Extent: N:60.19 E:-45.09 S:52.02 W:-56.88
Temporal Extent: 2020-08-15 - 2022-07-15
Transect across Labrador Sea (OSNAP West line) from surface to bottom

48

Views

12

Downloads

Summary of datasets used for model training and testing. Full citation and doi links of these datasets can be found in the "Related Dataset" section below.

Training and testing the random forest (RF) model

Mean, daily oxygen values from 60 calibrated optodes - GOHSNAP moored oxygen timeserie (Miller et al., 2026)

Predictor variables

Co-located CTD data associated with GOHSNAP moored oxygen timeseries (Miller et al., 2026)
OSNAP gridded temperature and salinity fields (Fu et al., 2025)
GEBCO 2025 Gridded Bathymetry Data (GEBCO Bathymetric Compilation Group 2025 (2025)

Validation

AR45 CTD oxygen profiles (Fogaren & Palevsky, 2024)
AR46 CTD oxygen profiles (Fogaren & Palevsky, 2023)
AR69-01 CTD oxygen profiles (Fogaren & Palevsky, 2023)
AR69-03 CTD oxygen profiles (Fogaren & Palevsky, 2024)
MSM94 CTD oxygen profiles (Karstensen & Krahmann, 2023)
M184 CTD oxygen profiles (Karstensen & Krahmann, 2025)
BGC-Argo oxygen profiles (Argo, 2026)

Bias correction

World Ocean Atlas oxygen data, version 2018 (Reagan et al., 2023)

Related Datasets

IsRelatedTo

Dataset: https://doi.org/10.17882/42182
Relationship Description:

Argo. (2026). Argo float data and metadata from Global Data Assembly Centre (Argo GDAC) [Dataset]. SEANOE. https://doi.org/10.17882/42182

IsRelatedTo

Dataset: https://www.ncei.noaa.gov/archive/accession/NCEI-WOA18
Relationship Description:

Used as model bias correction.

IsRelatedTo

Dataset: Bottle-calibrated dissolved oxygen profiles
Relationship Description:

Dataset used for validation: cruise AR-46 (n = 18 profiles) and AR69-01 (n = 14 profiles)

IsRelatedTo

Dataset: Bottle-calibrated Dissolved Oxygen Profiles
Relationship Description:

Dataset used for validation: cruise AR-45 (n = 150 profiles) and AR69-03 (n = 113 profiles)

IsRelatedTo

Dataset: https://doi.org/10.35090/gatech/78023
Relationship Description:

Daily and monthly, gap-free, gridded temperature and salinity fields across the OSNAP West and East lines.

Related Publications

Methods

Thierry Virginie, Bittig Henry, The Argo-Bgc team (2025). Argo quality control manual for dissolved oxygen concentration. Argo-BGC group. https://doi.org/10.13155/46542

References

Overturning in the Subpolar North Atlantic Program. (n.d.). OSNAP. https://www.o-snap.org/

Software

Ellen Park. (2026). ellenrpark/gohsnap_rf: v1.0.0 (Version v1.0.0) [Computer software]. Zenodo. https://doi.org/10.5281/ZENODO.19486861

Dataset: A monthly gridded oxygen product for a Labrador Sea basin transect from August 2020 to July 2022

Principal Investigator: Jaime B. Palter (University of Rhode Island)

Co-Principal Investigator: David P. Nicholson (Woods Hole Oceanographic Institution)

Scientist: Una Kim Miller (University of Rhode Island)

Student, Contact: Ellen Park (Woods Hole Oceanographic Institution)

BCO-DMO Data Manager: Karen Soenen (Woods Hole Oceanographic Institution)

Project: Collaborative Research: Gases in the Overturning and Horizontal circulation of the Subpolar North Atlantic Program (GOHSNAP) (GOHSNAP)

Abstract

48

12

Files

Related Datasets

Related Publications

Dataset: A monthly gridded oxygen product for a Labrador Sea basin transect from August 2020 to July 2022

Principal Investigator: Jaime B. Palter (University of Rhode Island)

Co-Principal Investigator: David P. Nicholson (Woods Hole Oceanographic Institution)

Scientist: Una Kim Miller (University of Rhode Island)

Student, Contact: Ellen Park (Woods Hole Oceanographic Institution)

BCO-DMO Data Manager: Karen Soenen (Woods Hole Oceanographic Institution)

Project: Collaborative Research: Gases in the Overturning and Horizontal circulation of the Subpolar North Atlantic Program (GOHSNAP) (GOHSNAP)

Abstract

48

12

Files

Related Datasets

Related Publications

Dataset: A monthly gridded oxygen product for a Labrador Sea basin transect from August 2020 to July 2022

Principal Investigator: Jaime B. Palter (University of Rhode Island)

Co-Principal Investigator: David P. Nicholson (Woods Hole Oceanographic Institution)

Scientist: Una Kim Miller (University of Rhode Island)

Student, Contact: Ellen Park (Woods Hole Oceanographic Institution)

BCO-DMO Data Manager: Karen Soenen (Woods Hole Oceanographic Institution)

Project: Collaborative Research: Gases in the Overturning and Horizontal circulation of the Subpolar North Atlantic Program (GOHSNAP) (GOHSNAP)

Abstract

Metadata

48

12

Files

Related Datasets

Related Publications

Dataset: A monthly gridded oxygen product for a Labrador Sea basin transect from August 2020 to July 2022

Principal Investigator: Jaime B. Palter (University of Rhode Island)

Co-Principal Investigator: David P. Nicholson (Woods Hole Oceanographic Institution)

Scientist: Una Kim Miller (University of Rhode Island)

Student, Contact: Ellen Park (Woods Hole Oceanographic Institution)

BCO-DMO Data Manager: Karen Soenen (Woods Hole Oceanographic Institution)

Project: Collaborative Research: Gases in the Overturning and Horizontal circulation of the Subpolar North Atlantic Program (GOHSNAP) (GOHSNAP)

Abstract

Metadata

48

12

Files

Related Datasets

Related Publications