BOREAS AVHRR-LAC Ten-Day Composite Images: Surface Parameters

BOREAS Level-4c AVHRR-LAC Ten-Day Composite Images provide gridded surface parameter data for the Boreal Ecosystem-Atmosphere Study region. The dataset consists of 10-day composite images produced from single-day AVHRR data acquired by the NOAA-11 and -14 satellites. These composites cover the entire BOREAS region from 11-Apr-1994 to 10-Sep-1994 and are stored in binary image format.

Use Cases

• Analyzing temporal trends in surface radiative properties based on 10-day composite periods.
• Comparing satellite-derived surface parameters with ground-based point measurements.
• Modeling land surface reflectance across the BOREAS region using gridded data.
• Extending spatial analysis of boreal ecosystem features using satellite imagery.

Strengths

• Provides a temporally consistent series with 10-day composites spanning a 5-month period from April to September 1994.
• Covers the entire BOREAS study region, offering spatially complete geospatial data.
• Includes companion files like thumbnail images and a viewer utility for data access.

Limitations

• Metadata completeness is low: column names, row counts, and exact file sizes are unknown.
• Conflicting freshness information exists between platforms, with one listing a 2026 update date and another listing 1994.
• Data format (binary image files) may require specialized tools or the provided utility for interpretation.

Provenance

Source

National Aeronautics and Space Administration (NASA), with data acquired by CCRS and processed by MRSC and BORIS personnel.

Collection Method

Remotely sensed data from AVHRR instruments on NOAA-11 and -14 satellites, processed into gridded 10-day composites.

Time Range

11-Apr-1994 to 10-Sep-1994

Freshness

1994-09-10 23:59:59.999000

Geography

Entire BOREAS region