THMB Model Simulations for Amazon and Tocantins River Basins: 1939-1998

Model output data generated by the THMB 1.2 (Terrestrial Hydrology Model with Biogeochemistry) simulates water flow through groundwater, rivers, lakes, and wetlands. The dataset provides mean monthly simulated water height above flood stage, river discharge, and inundated area for the Amazon and Tocantins River basins from 1939 to 1998. The model operates on a 5-minute latitude-longitude grid with a 1-hour time step.

Use Cases

• Analyzing long-term trends in mean monthly river discharge for the Amazon basin.
• Modeling flood risk by examining simulated water height above flood stage.
• Studying wetland and floodplain dynamics using mean monthly inundated area data.
• Calibrating regional hydrological models with simulated data from the THMB 1.2 model.

Strengths

• Provides a long-term temporal record covering 60 years (1939-1998).
• Offers high spatial resolution on a 5-minute latitude-longitude grid.
• Contains three distinct, model-simulated hydrological variables: water height, discharge, and inundated area.

Limitations

• Sources conflict on the last updated date (1998-12-31 vs. 2026-03-13).
• Specific row counts, file sizes, and detailed column names are unavailable.
• Data is model-simulated output, not direct observational measurements.

Provenance

Source

ORNL_CLOUD

Collection Method

Generated by the THMB 1.2 (Terrestrial Hydrology Model with Biogeochemistry) model simulation.

Time Range

1939-1998

Freshness

1998-12-31 23:59:59.999000

Geography

Amazon and Tocantins River basins.