NASA_3Rivers: Monthly Watershed Sampling in Maine and New Brunswick

Monthly water samples were collected from a nominal depth of 0.5 meters at stations on the Kennebec, Androscoggin, and St. John Rivers. The dataset likely contains time-series measurements of ocean chemistry, temperature, salinity, and optical properties. Sampling occurred from early spring to late fall each year, with stations accessed by land.

Use Cases

• Tracking seasonal variability in water quality based on monthly sampling.
• Analyzing riverine inputs to coastal oceans based on ocean chemistry and salinity measurements.
• Correlating optical properties with other water quality parameters across a watershed.
• Studying spatial differences between three major river systems in the Northeast.

Strengths

• Sampling followed a consistent protocol with a nominal depth of 0.5 meters and monthly frequency.
• Data collection spanned multiple seasons, from early spring to late fall, for multiple years.
• The dataset is hosted on multiple government platforms, indicating formal curation.

Limitations

• Column names and specific measurements are not listed, limiting detailed understanding of the data structure.
• Key metadata like row count, file size, and specific license terms are missing or conflict between sources (e.g., 'other-license-specified' vs 'None').
• The most recent update date (2026-04-09) appears to be a placeholder far in the future.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Water samples collected by foot from land-accessible stations in rivers.

Time Range

Monthly from early spring to late fall (November).

Freshness

2026-04-09 20:36:51.533340

Geography

Kennebec, Androscoggin, and St. John Rivers in Maine, USA and New Brunswick, Canada.