Global Monthly Chlorophyll-a Concentrations From ADEOS-II Satellite

Satellite-derived maps provide global chlorophyll-a concentration at a 9-kilometer spatial resolution, measured in milligrams per cubic meter. The Japan Aerospace Exploration Agency (JAXA) produced this data from the GLI sensor onboard the ADEOS-II (Midori II) satellite. The dataset's final update was in October 2003.

Use Cases

• Modeling global ocean primary productivity using the chlorophyll-a concentration field as a key input.
• Analyzing spatial patterns of phytoplankton blooms from the 9km resolution geospatial maps.
• Calibrating or validating newer ocean color satellite products against this historical dataset.
• Studying seasonal or interannual variability in marine ecosystems using the 1-month statistical composites.

Strengths

• Provides global spatial coverage for chlorophyll-a concentration.
• Offers data at a defined 9-kilometer spatial resolution.
• Includes statistical composites for 1-day, 8-day, and 1-month periods.

Limitations

• Data collection ended in 2003, limiting analysis to historical conditions.
• The 9km resolution is coarse for studying coastal or mesoscale ocean features.
• Derived from empirical algorithms which may introduce regional biases.

Provenance

Source

Japan Aerospace Exploration Agency (JAXA).

Collection Method

Remote sensing data from the GLI optical sensor onboard the ADEOS-II satellite, processed to Level 3 binned and mapped products.

Time Range

Coverage corresponds to the ADEOS-II mission period, culminating in a final product version from 2003.

Freshness

Final update was 2003-10-25; dataset is not updated.

Geography

Global ocean coverage.