LBA-ECO LC-04: IBIS Model Simulations for Amazon and Tocantins Basins

1921-1998 annual and monthly data from the Integrated BIosphere Simulator (IBIS) model, driven by the CRU05 climate record. The dataset includes variables such as net ecosystem exchange, soil respiration, leaf area index, and runoff for the Amazon and Tocantins basins. Output is provided in both netCDF and ESRI ASCIIGRID formats.

Use Cases

• Analyzing long-term trends in carbon fluxes like net ecosystem exchange and soil respiration.
• Modeling hydrological processes such as drainage and runoff for the Amazon region.
• Calibrating or validating terrestrial ecosystem models using simulated leaf area index and soil moisture.
• Studying the interaction between climate variability and biogeochemical cycles from 1921-1998.

Strengths

• Provides a 78-year time series (1921-1998) of modeled ecosystem variables.
• Covers the entire spatial extent of the Amazon and Tocantins river basins.
• Data is available in two standard geospatial formats (netCDF and ESRI ASCIIGRID).
• Produced by NASA using a peer-reviewed terrestrial ecosystem model (IBIS).

Limitations

• Metadata completeness is low; column names and exact row/size counts are unknown.
• There is a conflict in the 'last updated' date between platforms (1998 vs. 2026), suggesting metadata may be stale or incorrect.
• ASCII format files are limited to annual means, not the full monthly temporal resolution.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Generated by the Integrated BIosphere Simulator (IBIS) model using the CRU05 climate record.

Time Range

1921-1998

Freshness

2026-04-10 01:34:35.224003

Geography

Amazon and Tocantins river basins