April to June 1993 data collected from the HAKUREI MARU in the North and South Pacific Ocean during cruise NH93-1/PACIFICA_49HG19930413. The dataset includes dissolved inorganic carbon, alkalinity, pH, salinity, temperature, dissolved oxygen, nutrients, and chlorophyll a. It was collected by researchers from Hokkaido University and the National Institute for Resources and Environment (now AIST) as part of the PACIFICA international synthesis project.
Use Cases
- Modeling ocean acidification trends based on pH and alkalinity measurements.
- Analyzing carbon sequestration capacity based on dissolved inorganic carbon (DIC) data.
- Studying nutrient-phytoplankton relationships based on nitrate, phosphate, silicate, and chlorophyll a.
- Calibrating oceanographic models based on concurrent CTD profile data for temperature, salinity, and pressure.
Strengths
- Data covers a specific two-month period (1993-04-13 to 1993-06-11) in the Pacific Ocean.
- Includes multiple related chemical and physical parameters (DIC, alkalinity, pH, nutrients, chlorophyll, temperature, salinity) for integrated analysis.
- Originates from a recognized international collaborative project (PACIFICA) supported by PICES.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data may reflect geographic bias inherent to the specific cruise track in the Pacific Ocean.
Provenance
- Source
- National Oceanic and Atmospheric Administration, Department of Commerce
- Collection Method
- Discrete sample and profile observations using CTD, Coulometer for DIC measurement, and bottle.
- Time Range
- 1993-04-13 to 1993-06-11
- Freshness
- Last updated 2026-03-05 23:00:51.187178; freshness should be verified.
- Geography
- North Pacific Ocean and South Pacific Ocean