Great Lakes Water Quality Measurements from NASA

NASA's OB_DAAC provides water quality measurements for the Great Lakes region. The dataset is hosted across multiple platforms, including NASA Earthdata and Data.gov, indicating its importance for environmental monitoring. Its most recent documented update was in March 2026.

Use Cases

• Analyzing spatial and temporal trends in ocean chemistry metrics like salinity.
• Monitoring changes in ocean optics, such as water clarity or light penetration.
• Correlating ocean temperature data with ecological events like algal blooms.
• Assessing regional water quality against environmental standards using measured parameters.

Strengths

• Hosted by NASA's authoritative OB_DAAC, ensuring a credible scientific origin.
• Cross-platform presence on NASA Earthdata and Data.gov signals recognized utility and importance.
• Includes specific earth science parameters like ocean chemistry, optics, temperature, and salinity.

Limitations

• Critical metadata like column names, row count, and file size are unavailable from all sources.
• Sources conflict on license details, with one specifying 'other-license-specified' and another listing 'None'.
• The temporal range of the actual measurements is not provided.

Provenance

Source

NASA OB_DAAC

Collection Method

null

Time Range

null

Freshness

2026-03-12 19:58:39.568122

Geography

Great Lakes region of the United States