The US Environmental Protection Agency's 2004 National Coastal Assessment surveyed estuarine resources in American Samoa. It includes water quality measurements from in-field observations and lab analyses, plus sediment chemistry and grain data from laboratory examinations. The survey sampled 49 stations across the islands of Tutuila, Aunu'u, Ofu, Olosega, and Ta'u during April and August 2004.
Use Cases
- Analyze coastal water quality trends based on in-field physical data and laboratory nutrient analyses.
- Assess sediment contamination levels based on laboratory-measured contaminant concentrations.
- Study sediment composition and grain size distribution based on laboratory sediment component analyses.
- Model estuarine resource conditions for American Samoa based on the multi-faceted survey data.
Strengths
- Survey includes data from 49 distinct sampling stations across multiple islands.
- Data covers multiple domains: water quality profiles, nutrient analyses, sediment chemistry, and sediment grain composition.
- Sampling occurred during two months (April and August 2004), providing temporal context.
Limitations
- Last updated 2004-08 25 00:00:00; freshness should be verified.
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
Provenance
- Source
- Environmental Protection Agency (EPA) Environmental Monitoring and Assessment Program (EMAP) National Coastal Assessment (NCA), coordinated through the Gulf Ecology Division.
- Collection Method
- Field sampling and subsequent laboratory examination of water and sediment samples.
- Time Range
- 2004
- Freshness
- 2004-08-25 00:00:00
- Geography
- American Samoa (islands of Tutuila, Aunu'u, Ofu, Olosega, Ta'u)