Amazon River Carbon Flux and Water Chemistry Data 1982-1991

CAMREX data provides a 10-year time series from 13 research cruises along a 2000 km reach of the Brazilian Amazon River mainstem and its major tributaries. The project, conducted by NASA from 1982 through 1991, aimed to define processes controlling bioactive elements like carbon, nitrogen, and phosphorus. It includes flux-weighted water chemistry, daily river discharge, and environmental drivers like precipitation and temperature.

Use Cases

• Modeling carbon and nutrient mass balances using water chemistry data for C, N, P, and O.
• Analyzing river discharge dynamics with daily flow measurements from 18 sampling sites.
• Correlating hydrographic stages with biogeochemical fluxes using data from 13 cruises across contrasting seasons.
• Investigating climate-river interactions using monthly model drivers for 1989, including NPP, evapotranspiration, and precipitation.
• Studying spatial variability in water quality across the Amazon mainstem and its major tributaries.

Strengths

• Time series spans a decade (1982-1991), providing long-term context for seasonal and interannual variability.
• Spatial coverage includes 18 different sites over a 2000 km reach, capturing longitudinal gradients.
• Data collection occurred during 13 cruises across contrasting hydrographic stages, ensuring representation of different flow conditions.
• Data underwent processing and quality control before archival, as noted in the Pre-LBA documentation.

Limitations

• Specific row counts, column names, and dataset size are not provided by any source, limiting precise assessment of scope.
• Primary monthly model driver data is specifically noted for the year 1989, reducing temporal coverage for those variables.
• Sources conflict on the 'last updated' metadata, with one listing 1991 and others listing 2026, creating uncertainty about provenance timeline.

Provenance

Source

National Aeronautics and Space Administration (NASA), author Jon Adams.

Collection Method

Direct measurements and mass balance calculations from flux-weighted water samples collected on research cruises.

Time Range

1982 through 1991

Freshness

2026-03-12 22:35:16.868346

Geography

2000 km reach of the Brazilian Amazon River mainstem, including major intervening tributaries.