Amazon Basin Precipitation Grids from 1972 to 1992

Precipitation grids for the Amazon River Basin provide 0.2-degree resolution monthly data derived from a daily gauging network operated by Brazil's DNAEE. The dataset was created for the Earth Observing System Regional Amazon Model project, supporting empirical and modeling studies of rainfall and runoff. It covers a 21-year period from January 1972 through December 1992.

Use Cases

• Modeling basin-wide rainfall-runoff relationships using gridded precipitation values.
• Analyzing long-term monthly precipitation trends across the Amazon region.
• Validating hydrological or climate models with observed gauge-derived data.
• Studying spatial patterns of precipitation at a 0.2-degree resolution.

Strengths

• Data spans a 21-year temporal range from 1972 to 1992, providing a long-term climate record.
• Precipitation values are provided on a consistent 0.2-degree spatial grid.
• Data originates from a cooperative project (EOSRAM) using an official national gauging network (DNAEE).

Limitations

• Specific column names and the total row/grid count are not provided by any source.
• Sources conflict on the last updated date, reporting both 1992-12-31 and 2026-03 13.
• The exact license terms under 'other-license-specified' are not detailed.

Provenance

Source

Divisao Nacional de Aguas e Energia Eletrica (DNAEE) of Brazil, provided to the EOS Regional Amazon Model project.

Collection Method

Derived from daily precipitation data collected by the DNAEE gauging network and gridded to a monthly 0.2-degree resolution.

Time Range

1972-01 to 1992-12

Freshness

2026-03-13 15:49:37.224417

Geography

Amazon River Basin