Amazon Stream Carbon and Nutrient Concentrations in Mato Grosso

LBA-ECO ND-11 provides baseflow streamwater chemistry data for four headwater catchments in the seasonally dry southern Amazon near Juruena, Mato Grosso, Brazil. The dataset contains concentrations of pH, specific conductivity, base cations, dissolved organic carbon, particulate organic carbon, bicarbonate alkalinity, and silica. Samples were collected weekly during rainy seasons and biweekly during dry seasons from 2003 to 2006 as part of a NASA study.

Use Cases

• Analyzing concentration-discharge relationships for carbon and base cations in Amazonian streams.
• Comparing water chemistry (pH, conductivity, alkalinity) across four small, undisturbed forest catchments.
• Modeling seasonal variation in dissolved organic carbon and silica in a seasonally dry tropical climate.
• Studying the inverse relationship between streamwater solute concentrations and discharge.

Strengths

• Data covers a multi-year time series from 2003 to 2006.
• Sampling was systematic, with weekly collections during rainy seasons and biweekly during dry seasons.
• Focus on four specific, undisturbed headwater catchments ranging from 0.85 to 1.9 hectares provides a controlled study environment.

Limitations

• The exact row count and column names are not provided by any source.
• Baseflow discharge data, critical for concentration-discharge analysis, is archived separately and not included.
• Sources conflict on the last updated date, with one listing 2006 and another listing a future date of 2026.

Provenance

Source

National Aeronautics and Space Administration (NASA), LBA-ECO project.

Collection Method

Stream water samples collected manually from four headwater watersheds.

Time Range

2003-2006

Freshness

2006-05-18 23:59:59.999000

Geography

Undisturbed forest near Juruena, Mato Grosso, in the seasonally dry southern Amazon, Brazil.