Amazon River Floodplain Mosaic from Landsat TM (1986-1995)

Brazilian Amazon River floodplain data provides a digital mosaic compiled from 29 Landsat Thematic Mapper images. The dataset was created through the EOS-IDS Project by a consortium including INPE, CENA, University of Washington, University of California Santa Barbara, and NASA. It covers the mainstem from the river's mouth to its spring, with imagery selected from 1986 to 1995 during the high water season.

Use Cases

• Analyzing floodplain extent and vegetation cover using the six provided Landsat TM bands (1-5 and 7).
• Conducting change detection over a near-decadal period (1986-1995) within the July-September high water season.
• Creating base maps for hydrological modeling using the geometrically corrected 90-meter and 500-meter resolution geoTIFF files.
• Studying radiometric consistency across a large region, noting performance variations for bands like 3, 5, and 7 versus bands 1 and 2.

Strengths

• Mosaic integrates 29 Landsat TM scenes, providing uniform coverage of the entire Brazilian Amazon River mainstem floodplain.
• Images were geometrically corrected using ground control points from 1:250,000 scale charts and radiometrically rectified for consistency.
• Data selection prioritized minimum cloud cover within the defined July-September high water season over a 9-year period (1986-1995).

Limitations

• Radiometric rectification had limited performance for TM bands 1 and 2, especially in scenes with intense haze.
• Sources conflict on the last updated date, reporting both 1995-09-19 and a future date of 2026 03-12, indicating potential metadata errors.
• Specific row counts, file sizes, and detailed column names are not provided across any platform.

Provenance

Source

EOS-IDS Project developed with cooperation among INPE, CENA, University of Washington (UW), University of California Santa Barbara (UCSB), and NASA.

Collection Method

Mosaic compiled from selected Landsat TM images, geometrically corrected with ground control points and radiometrically rectified using the Hall et al. (1991) method.

Time Range

1986 to 1995

Freshness

1995-09-19 23:59:59.999000

Geography

Amazon River mainstem floodplain, from the river's mouth in Brazil to its spring, divided at the Brazil/Peru boundary.