All research cruises

Hakurei Maru — cruise 49HG19980812

1998-08-12 → 1998-10-19 · North Pacific, 10–44°N

GLODAPv3SOCAT v2026

Track of cruise 49HG19980812 (Hakurei Maru) — North Pacific, 10–44°N10–44°N · equirectangular · Natural Earth
Track of cruise 49HG19980812 (Hakurei Maru) — North Pacific, 10–44°N. Orange: GLODAPv3 casts; blue: SOCAT track.

Open on the map →

GLODAPv3 bottle data

ShipHakurei Maru
Platform code49HG
Casts27
Sample depths0–5679 m
Dates1998-08-19 → 1998-10-11
Measured (≥ 1 acceptable value, flag 2)Temperature (°C), Salinity (PSU), Dissolved oxygen (µmol/kg), Nitrate (µmol/kg), Phosphate (µmol/kg), Dissolved inorganic carbon (TCO₂) (µmol/kg), Total alkalinity (µmol/kg), pH, total scale, 25 °C and 0 dbar, pH, total scale, in situ

Cruise DOI · Casts on the map

SOCAT v2026 surface fCO₂

PlatformHakurei Maru 2
Principal investigatorsTsurushima, N.
Observations stored2,661
Observations drawn on the map (WOCE flag 2, QC A–D)2,661
QC flagD — estimated accuracy better than 5 µatm
Time span (UTC)1998-08-12T16:01:00+00:00 → 1998-10-19T22:13:00+00:00
DatasetWestCosmic_NH98
SOCAT version2.0N

How to cite

GLODAPv3

Lange, N., Lauvset, S. K., Carter, B. R., et al. (2026). The Global Ocean Data Analysis Project version 3 (GLODAPv3) (NCEI Accession 0315582). NOAA NCEI. https://doi.org/10.25921/m6tp-mj50

Lange et al., ESSD preprint, https://doi.org/10.5194/essd-2026-496

Ship names: The NERC Vocabulary Server (NVS), National Oceanography Centre - British Oceanographic Data Centre (BODC), collection C17 (ICES platform codes), https://vocab.nerc.ac.uk/collection/C17/current/ - CC BY 4.0, https://vocab.nerc.ac.uk/about

SOCAT v2026

Bakker, D. C. E., Alin, S. R., Bates, N., et al. (2026). Surface Ocean CO₂ Atlas Database Version 2026 (SOCATv2026) (NCEI Accession 0315110). NOAA NCEI. https://doi.org/10.25921/8dba-fr90

Bakker, D. C. E., et al. (2016). A multi-decade record of high-quality fCO2 data in version 3 of the Surface Ocean CO₂ Atlas (SOCAT). Earth System Science Data 8, 383-413. https://doi.org/10.5194/essd-8-383-2016

The Surface Ocean CO₂ Atlas (SOCAT) is an international effort, endorsed by the SCOR Infrastructural Project International Ocean Carbon Coordination Project (IOCCP) and the Surface Ocean Lower-Atmosphere Study (SOLAS), to deliver a uniform, quality-controlled surface ocean CO2 database. The many researchers and funding agencies responsible for the collection of data and quality control are thanked for their contributions to SOCAT.

Licence: CC BY 4.0. Values are passed through unmodified from the published datasets.