IMOS - NOAA20 Satellite Chlorophyll-a Concentration (GSM Model)

NOAA20 satellite data provides daily chlorophyll-a concentration estimates derived from VIIRS sensor multi-spectral measurements using the Garver-Siegel-Maritorena (GSM) algorithm. The data is processed by the SeaDAS software l2gen and described in IOCCG Report 5, 2006. It is provided by the Australian Ocean Data Network and was last updated on 2026-07-10.

Use Cases

• Modeling ocean primary productivity based on chlorophyll-a concentration estimates.
• Monitoring phytoplankton bloom dynamics based on satellite-derived chlorophyll data.
• Studying marine ecosystem health and biogeochemical cycles based on inferred phytoplankton presence.

Strengths

• Data is derived from the NOAA20 satellite's VIIRS sensor, a specific observational platform.
• Uses the Garver-Siegel-Maritorena (GSM) method, a specific retrieval algorithm.
• Last update timestamp is precisely recorded as 2026-07-10 04:00:48.383570.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• Data may reflect geographic or temporal bias inherent to the satellite's coverage and the data_gov_au source.

Provenance

Source

Australian Ocean Data Network

Collection Method

Satellite remote sensing via NOAA20 platform's VIIRS sensor, processed with SeaDAS l2gen software using the GSM algorithm.

Freshness

Last updated 2026-07-10 04:00:48.383570