LBA-ECO ND-03: Stream and Soil Water Chemistry in Rondonia, Brazil

Five data files contain eight years of physical and chemical measurements from the Aldeia River basin in central Rondonia, Brazil, spanning 1994 to 2001. The dataset includes stream bed characteristics, discharge data, and chemical analyses of streamwater and soil water extracted by lysimeters at 30 cm and 100 cm depths. It was collected at Fazenda Nova Vida, a large cattle ranch 50 km from Ariquemes, to characterize hydrological processes and land use impacts.

Use Cases

• Analyzing the impact of pasture conversion on stream water chemistry based on long-term sampling.
• Modeling groundwater-surface water interactions using paired soil solution and streamwater data from lysimeters.
• Assessing seasonal and interannual variability in stream discharge and bed characteristics over an eight-year period.
• Comparing solute transport in floodplain versus upland forest and pasture sites using depth-specific soil water samples.

Strengths

• Provides an eight-year continuous time series from 1994 to 2001.
• Includes paired data from multiple environments: streamwater, floodplain, upland forest, and pasture sites.
• Contains depth-specific soil water data collected with lysimeters at 30 cm and 100 cm.

Limitations

• Column names and exact row counts are not provided in the available metadata, limiting immediate usability.
• The license is ambiguously specified as 'other-license-specified' without further detail.
• Data freshness is unclear; the last update is listed as 2026-04-10, which is a future date and likely a metadata error.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Field sampling of streamwater and soil water using lysimeters, with subsequent laboratory chemical analysis.

Time Range

1994-2001

Freshness

2026-04-10 (datagov), but this is a future date and likely erroneous; a more plausible date is 2001-09-12 (nasa_earthdata).

Geography

Aldeia River basin at Fazenda Nova Vida, central Rondonia, Brazil