WOCE A03 1993: CTD and Bottle Profiles from the North Atlantic Ocean

NCEI Accession 0143931 contains discrete sample and profile data from the R/V Professor Multanovskiy cruise WOCE_A03_1993. The dataset includes measurements of dissolved oxygen, hydrostatic pressure, nitrite, salinity, water temperature, nitrate+nitrite, phosphate, and silicate, collected using CTD and bottle instruments. It is part of the World Ocean Circulation Experiment, which aimed to understand the ocean's role in climate.

Use Cases

• Analyzing vertical profiles of salinity and temperature to study water mass structure.
• Investigating nutrient distributions (nitrite, phosphate, silicate) for biogeochemical cycle research.
• Calibrating or validating ocean circulation models with in-situ hydrographic data.
• Assessing dissolved oxygen levels in relation to ocean health and climate processes.

Strengths

• Data is part of the authoritative, large-scale World Ocean Circulation Experiment, which covered approximately 23,000 stations from 94 cruises.
• Provides a specific, temporally bounded profile from a known research vessel and cruise (WOCE_A03_1993, 1993-09-11 to 1993-11 21).
• Cross-platform presence on NASA Earthdata and Data.gov signals its importance and curation within federal data systems.

Limitations

• Column names and exact data structure are unknown, limiting immediate analytical use.
• Conflicting 'last updated' metadata (2026-03-05 vs. 1993-11-21) creates uncertainty about provenance maintenance.
• Dataset size, row count, and license information are not provided in any source.

Provenance

Source

Vladimir Tereschenkov of the P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences.

Collection Method

Data collected from discrete sample and profile observations using CTD and bottle instruments aboard the R/V Professor Multanovskiy.

Time Range

1993-09-11 to 1993-11-21

Freshness

2026-03-05 23:48:25.258695

Geography

North Atlantic Ocean