Amazon Floodplain Water Quality and Chemistry Measurements

Approximately 70 sampling stations in Lago Curuai, Brazil, provide concentrations of suspended solids, dissolved carbon, chlorophyll-a, and measurements of turbidity, pH, temperature, and conductivity. Data was collected by the ORNL_CLOUD organization across four distinct phases of the Amazon's hydrological cycle from 2003 to 2004. This dataset captures seasonal dynamics in a major tropical floodplain system.

Use Cases

• Analyzing seasonal variation in dissolved organic carbon (DOC) and chlorophyll-a concentrations across hydrological phases.
• Correlating water temperature and pH measurements with calculated carbon dioxide (CO2) levels in a floodplain lake.
• Mapping spatial and temporal distributions of total, organic, and inorganic suspended solids from 70 stations.
• Studying the relationship between physical parameters like turbidity, transparency, and conductivity with biological indicators.

Strengths

• Sampling covers four critical hydrological phases (receding, low, rising, high water) providing seasonal context.
• Data includes multiple related chemical and physical parameters (e.g., solids, carbon, chlorophyll, turbidity) for integrated analysis.
• Approximately 70 stations offer spatial coverage across the Lago Curuai floodplain system.

Limitations

• Exact row count and file size are not specified in the provided metadata.
• Conflicting last updated dates exist between sources (2004-06 and 2026-03), suggesting potential metadata inconsistency.
• Specific column names and the complete data structure within the comma-delimited file are unknown.

Provenance

Source

ORNL_CLOUD

Collection Method

Water samples collected from approximately 70 stations in Lago Curuai.

Time Range

2003-09 to 2004-06

Freshness

2026-03-13 01:15:19.131075

Geography

Lago Curuai (Lake Curuai), floodplain of the Amazon River south of Obidos, Para, Brazil.