We have submitted the BGC-Argo+ manuscript to ESSD:
- Manuscript Preprint
- Submitted dataset archive
- Submitted code archive

Float data files - version 0.1_2026_04

Grouped by region or individually. One file per float, similar format as GDAC files (details below)

Region Link File Size Date Updated
Global dataset BGC_Argo_Plus_Global 14.2 GB 2026-04
Individual Float Files FTP Directory 2,427 files, 32.8 GB total 2026-04

*When using these data, in addition to citing this work please make sure to follow the Argo, GO-BGC, or SOCCOM acknowledgments as appropriate.

Gridded data

(X x Y x Z grid, not mapped or interpolated)

Variable Link File Size Date Updated
Oxygen Tar.gz file 116 MB 2026-04
Nitrate Tar.gz file 293 MB 2026-04
DIC Tar.gz file 65 MB 2026-04

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Float file details

Variables originally included in the Sprof files that are modified:

Variable name Type Description
[VAR] Unchanged Raw variable copied directly from DAC
[VAR]_ADJUSTED Unchanged ADJUSTED variable copied directly from DAC
[VAR]_BGCArgoPlus Biogeochemical Argo+ version Variable modified from DAC according to the processing level description
[VAR]_BGCArgoPlus_ProcessingLevel Biogeochemical Argo+ version Processing level of variable

Processing Level Descriptors:
“RTA/DM” - Mode allowed (RTA = Real Time Adjusted and delayed mode allowed, DM = only delayed mode allowed)
“F” - DAC QC flags applied (Bad data flagged as NaN)
“RO” - Outlier removed
“O2Bias” - O2 Bias correction applied (Bushinsky et al., 2025, Nachod et al., in prep)
“Thermo” - Thermodynamic correction applied to pK1/pK2 (Johnson et al., in prep)

Newly calculated derived variables added to the BGCArgoPlus files:

Variable name Description
TALK_BGCArgoPlus Alkalinity estimated from ESPER Mixed, which is an average of ESPER neural network and ESPER multiple linear regression (Carter et al. 2023)
DIC_BGCArgoPlus DIC calculated from float pH and TALK_BGCArgoPlus. O2 Bias Correction applied where possible and the Johnson et al. XXXX adjustment to pk1 and pk2 used.
sigma0 Potential Density calculated using gsw.SA_from_SP, gsw.CT_from_t, gsw.sigma0
cons_temp Conservative temperature calculated using gsw.CT_from_t
spiciness0 Spiciness calculated using using gsw.SA_from_SP, gsw.CT_from_t, gsw.spiciness0
gamma Neutral density calculated using Matlab eos80_legacy_gamma_n from XXXX
depth Depth calculated using gsw.conversions.z_from_p
MLD MLD calculated using De Boyer Montegue et al. 2004 (modified to work w/ under ice data as well)
DOXY_SAT The saturation concentration of oxygen using Garcia and Gordon 1992 (gsw.O2sol_SP_pt). Assumes standard atmospheric pressure.

Outliers removed

CSV of all outliers removed. [Column headers: Float Number, Variable, N_PROF, Date, N_LEVELS, Pressure (dbar), Deletion reason, Variable_short, Variable_base, Project, Data_Centre, DOXY_MODEL, NITRATE_MODEL, PH_MODEL, Deployment_Date, Dep_Lat, Dep_Lon, Last_Date, Lat, Lon.]

Version notes

v0.1_2026_04 - Additional outlier removals, cleaned up data files, gridded files added, manuscript submitted
v0.1_2025_12 - Changed to “BGCArgoPlus” variable suffixes.
v0.0 - Preliminary upload.