Fast Repetition Rate Fluorometry (FRRF) data collected on the RV L'Astrolabe from 22/01/20

Continuous Fast Repetition Rate Fluorometry (FRRF) data collected at 1-minute intervals from seawater at 3 m depth aboard the RV L'Astrolabe from January 22 to 27, 2003. The dataset includes measurements of maximum photochemical efficiency of photosystem II (Fv/Fm), a key indicator of phytoplankton health and potential primary production. It was collected by the Australian Ocean Data Network on a voyage from Dumont d'Urville to Hobart.

Use Cases

• Modeling primary production based on Fv/Fm, absorption cross section, and chlorophyll concentration.
• Assessing phytoplankton community health and stress responses based on variations in Fv/Fm.
• Analyzing high-frequency temporal changes in photosynthetic efficiency based on continuous 1-minute interval measurements.
• Correlating phytoplankton photochemical efficiency with physical and chemical oceanographic properties.

Strengths

• Data was collected at a high temporal resolution of 1-minute intervals.
• Measurements were taken continuously over a 6-day period from January 22 to 27, 2003.
• Seawater samples were dark-adapted for 15 minutes prior to measurement, a standard protocol for Fv/Fm.

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/temporal bias inherent to a single 6-day voyage in the Southern Ocean.

Provenance

Source

Australian Ocean Data Network

Collection Method

Continuous FRR fluorescence measurements from the ship's clean seawater line at 3 m depth.

Time Range

2003-01-22 to 2003-01-27

Freshness

Last updated 2026-07-09 23:10:05.106445; freshness should be verified.

Geography

Southern Ocean voyage from Dumont d'Urville to Hobart.