PACIFICA_49HG19971110: Ocean Carbon Chemistry Profiles from the North Pacific, 1997-1998

PACIFICA_49HG19971110 contains discrete water sample and profile measurements of dissolved inorganic carbon, pH, alkalinity, and related biogeochemical parameters from the North Pacific Ocean and Philippine Sea. Data from the HAKUREI MARU cruise between November 1997 and January 1998 includes measurements of CFCs, sulfur hexafluoride, nutrients, chlorophyll a, and dissolved organic carbon. Fumiyasu Nishibori and Yutaka W. Watanabe collected these data as part of the international PACIFICA project for synthesizing Pacific Ocean interior carbon data.

Use Cases

• Modeling ocean carbon uptake based on dissolved inorganic carbon and alkalinity measurements.
• Analyzing ocean acidification trends based on pH and dissolved inorganic carbon data.
• Tracing water mass age and circulation using CFC-11, CFC-12, CFC-113, and sulfur hexafluoride tracers.
• Studying marine biological productivity based on chlorophyll a, nitrate, nitrite, phosphate, and silicate concentrations.
• Calibrating ocean biogeochemical models using co-located physical (temperature, salinity, pressure) and chemical parameter profiles.

Strengths

• Includes a wide suite of co-located biogeochemical parameters (17 variables) for integrated analysis.
• Data collection spans a specific cruise from 1997-11-10 to 1998-01-19, providing a focused temporal snapshot.
• Project was part of the international PACIFICA synthesis effort, suggesting standardized protocols.

Limitations

• Row count and dataset size are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data may reflect geographic and temporal bias inherent to a single research cruise.

Provenance

Source

Fumiyasu Nishibori of Kansai Environmental Engineering Center, Co., LTD. (now General Environmental Technos Co., LTD.) and Yutaka W. Watanabe of Hokkaido University.

Collection Method

Discrete sample and profile observations using CTD, Coulometer for DIC measurement, bottle, and other instruments.

Time Range

1997-11-10 to 1998-01-19

Freshness

Last updated 2026-03-06 00:16:49.973124; freshness should be verified.

Geography

North Pacific Ocean and Philippine Sea