North Pacific Ocean Carbon Chemistry and Hydrographic Profiles from 1999

WOCE_P01_SAGE_1_Revisit includes biological, chemical, and physical data from the North Pacific Ocean collected between May and September 1999. Tsuneo Ono and Masao Fukasawa gathered the data using CTD and bottle instruments aboard the KAIYO-MARU and MIRAI vessels. The dataset is part of the World Ocean Circulation Experiment's CO2 survey, which aimed to understand the ocean's role in climate.

Use Cases

• Modeling ocean carbon uptake and storage based on dissolved inorganic carbon (DIC) and total alkalinity (TA) measurements.
• Analyzing historical chlorofluorocarbon (CFC) and sulfur hexafluoride (SF6) tracer distributions for water mass age studies.
• Calibrating biogeochemical models using concurrent nitrate, phosphate, silicate, and chlorophyll a profiles.
• Studying ocean acidification trends by examining pH, DIC, and alkalinity data from a known time period.

Strengths

• Data collection is part of the major World Ocean Circulation Experiment (WOCE), a recognized climate research program.
• Includes over 20 measured variables, such as dissolved inorganic carbon, chlorofluorocarbons, nutrients, and chlorophyll.
• Samples were collected using standard oceanographic instruments (CTD and bottle) during dedicated research cruises.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is from a specific period in 1999; freshness should be verified for contemporary applications.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Discrete sample and profile observations using CTD, bottle and other instruments.

Time Range

1999-05-23 to 1999-09-10

Freshness

Last updated 2026-03 05 23:30:28.537471; freshness should be verified.

Geography

North Pacific Ocean