DOI: 10.5281/zenodo.15543767
title: Datasets for "Characterization of the Shallow Oxygen Minimum Zone of the Eastern Tropical North Atlantic"

description: This repository contains all datasets used to generate the figures and tables in the manuscript "Characterization of the Shallow Oxygen Minimum Zone of the Eastern Tropical North Atlantic".

Main Figures

Figure 1- Definition_end_members_water_masses_2dx_2dy_2dt.csv: End-member definitions for water mass classification.- SACW_mean_120m_ETNA.nc: Mean SACW concentration at 120 m depth.- O2_mean_120m_ETNA.nc: Mean O₂ concentration at 120 m depth.

Figure 2- No external data used.

Figures 3–4, 6–12- Hypoxic_clusters.pkl: Python pickle file with Lagrangian Hypoxic Event (LHE) data, including coordinates, O₂ concentrations, etc.- Hypoxic_clusters.csv: Table with label identification of LHEs and corresponding type, interactions, and start and finish dates.

Figure 5- sOMZ_TS.pkl: Temperature-salinity characteristics of hypoxic events in the shallow Ozygen Minimum Zone (sOMZ).

Figure 6- Data_slices_figure6.pkl: Model O₂ concentrations at: horizontal slice at 100 m depth; zonal vertical slice at 18.4ºN and meridional vertical slice at 19.4ºW.

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Supporting Information

Figures S1–S2- model_validation_taylor_target.pkl: Taylor and target diagram statistics for model–climatology comparison.

Figure S3- model_validation_O2.pkl: O₂ seasonal and yearly average concentrations at 100 m depth for model validation.

Figure S4- model_validation_surface_currents.pkl: Model seasonal and yearly average surface circulation data for model validation.

Figures S5–S6- model_validation_EKE_MKE.pkl: Model eddy and mean kinetic energy at the surface for model validation.

Figure S7- model_validation_SST.pkl: Model seasonal and yearly average sea surface temperature for model validation.

Figure S8- model_validation_chla.pkl: Model seasonal and yearly average surface (0-30 m) chlorophyll-a concentrations for model validation.

Figure S9- OKUBO_WEISS_std_18.5lon.nc: Vertical slice of negative Okubo–Weiss standard deviation for ACME detection.

Figure S10- SACW_mean_25-8_26-8_fulldomain.nc: SACW distribution across the full domain.

Figures S11–S12, S16–S17- Hypoxic_clusters.pkl- Hypoxic_clusters.csv

Figure S13 and S15- Dict_hist_t-s_inside_outside_ALL_eddies_dt2_stp2.pkl: T–S histogram data for eddy interiors and exteriors.

Figure S14- Argo_6900632.nc: Argo float 6900632 profile data.

Figure S18- ifm02_depl22_glider_gridded.nc: Gridded glider data deployed in M107 campaign (https://doi.org/10.1594/PANGAEA.877392).

Tables S1–S2- Hypoxic_clusters.pkl- Hypoxic_clusters.csv

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Climatological Datasets for Model Comparison

CARS (CSIRO Atlas of Regional Seas)- CARS_NO3_seasons.cdf- CARS_NO3_year.nc- CARS_O2_seasons.cdf- CARS_O2_year.nc- CARS_PO4_seasons.cdf- CARS_salt_seasons.cdf- CARS_temp_seasons.cdf

WOA23 (World Ocean Atlas 2023)- WOA_NO3_[autumn|spring|summer|winter|year].nc- WOA_O2_[autumn|spring|summer|winter|year].nc- WOA_PO4_[autumn|spring|summer|winter|year].nc- WOA_salt_[autumn|spring|summer|winter|year].nc- WOA_temp_[autumn|spring|summer|winter|year].nc

GOBAI-O₂- GOBAI-O2-clim-v2.2_subset.nc

SST and Chlorophyll-a- OSTIA_2007-01-01_2024-01-01_monthly_mean.nc: Satellite-derived SST (OSTIA).- GlobColour_1998-2023.nc: Satellite chlorophyll-a from GlobColour.

Drifter Climatology- drifter_monthlymeans.nc: Monthly surface current means from the Global Drifter Program.