IMOS MODIS: Daily Ocean Chlorophyll-a Concentration via OCI Algorithm

Australian Ocean Data Network provides satellite-derived chlorophyll-a concentration data for ocean surfaces. The data are produced from the MODIS sensor on the Aqua satellite using the OCI algorithm recommended by NASA. Production of contemporary MODIS data ceased on 2024-12-26.

Use Cases

• Monitoring phytoplankton biomass and distribution based on chlorophyll-a concentration.
• Studying temporal trends in ocean productivity based on daily satellite observations.
• Validating ocean biogeochemical models based on remote sensing data.
• Assessing water quality and algal bloom events based on inferred chlorophyll levels.

Strengths

• Uses the NASA-recommended OCI algorithm for chlorophyll-a retrieval.
• Data are provided by the authoritative Australian Ocean Data Network.
• Last metadata update was 2026-07-13 20:20:15.752366.

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.
• Production of new MODIS data ceased on 2024-12-26, limiting temporal coverage for recent periods.

Provenance

Source

Australian Ocean Data Network (AODN)

Collection Method

Satellite remote sensing via the MODIS sensor on the Aqua platform, processed with the SeaDAS l2gen software using the OCI algorithm.

Freshness

Last updated 2026-07-13 20:20:15.752366; freshness should be verified.

Geography

Likely covers ocean areas observable by the MODIS sensor, specific regions not stated.