Phytoplankton Abundance and Biomass from the 1992 JGOFS Equatorial Pacific Study

1992 data from the JGOFS Equatorial Pacific Process Study (EQPAC) along 140°W longitude. The dataset contains measurements of phytoplankton abundance and biomass for groups including dinoflagellates, diatoms, and coccolithophores, collected via CTD rosette water sampler during four cruises. The data is public domain and was aggregated from JGOFS web pages by SCIOPS.

Use Cases

• Modeling phytoplankton biomass distribution based on cell counts and carbon measurements.
• Analyzing seasonal changes in phytoplankton communities based on data from four distinct cruises in 1992.
• Studying the relative abundance of specific diatom taxa like Nitzschia within the total diatom population.
• Investigating vertical profiles of marine microorganisms based on samples collected with a CTD rosette.

Strengths

• Data spans a defined geographic transect along 140°W from 17°S to 12°N latitude.
• Includes measurements for multiple phytoplankton groups (dinoflagellates, diatoms, coccolithophores) with both abundance (cells/liter) and biomass (picograms carbon/liter).
• Temporal coverage is specific, with four cruises conducted between February and October 1992.

Limitations

• Last updated 1992-10-21 23:59:59.999000; freshness should be verified.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

JGOFS (Joint Global Ocean Flux Study) World Wide Web pages.

Collection Method

Samples collected using CTD rosette water sampler during ship-based cruises.

Time Range

1992 (Cruises from February to October).

Freshness

Historical; last updated date corresponds to the final cruise in 1992.

Geography

Equatorial Pacific Ocean along 140°W longitude, from 17°S to 12°N latitude.