LBA-ECO LC-07: Bathymetric Survey of Lago Curuai, Brazil

LBA-ECO LC-07 bathymetry data provides a high-resolution digital elevation model for Lago Curuai, an Amazon River floodplain lake in Para, Brazil. The dataset contains interpolated depth measurements from a June 2004 survey, processed from 4600 km of echosounder transects. It was used to develop a methodology for estimating floodplain water volume from satellite-derived water levels.

Use Cases

• Modeling floodplain water volume changes based on water level regression models described in the source.
• Creating high-resolution background maps for geospatial analysis in the Lago Curuai region.
• Developing and validating methodologies for processing high-resolution bathymetric data from echosounders.
• Analyzing the relationship between inundated area and water storage in Amazon floodplain lakes.

Strengths

• High spatial resolution with a 15-meter horizontal and 1-centimeter vertical resolution digital elevation model.
• Based on a substantial field survey covering 4600 km of processed transects.
• Data is available in multiple, interoperable geospatial formats (ENVI, GeoTIFF).

Limitations

• Metadata conflict: last update dates are inconsistent (2004 vs. 2026) across platforms.
• Dataset is a single snapshot from June 2004, limiting temporal analysis.
• Column names and a precise row/record count are not provided in the available metadata.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Field survey using a Lowrance-480M echosounder, supported by Landsat/TM imagery for planning. Data was processed semi-automatically.

Time Range

2004-06

Freshness

2004-06-30 23:59:59.999000

Geography

Lago Curuai, an Amazon River floodplain lake upstream from Santarem, Para, Brazil.