Proba CHRIS Level 1A: Hyperspectral Satellite Imagery in Five Modes

Data from the CHRIS sensor on the Proba-1 satellite, processed daily to Level 1A and last updated in December 2022. The dataset provides hyperspectral imagery in five distinct acquisition modes, each offering different spectral band sets (18 to 62 bands) and ground sampling distances (17m or 34m at nadir). It is produced by the European Space Agency (ESA) and made available to its users.

Use Cases

• Analyze land surface properties based on the 18-band land channel mode (MODE 3).
• Study water body characteristics based on the dedicated 18-band water mode (MODE 2).
• Investigate chlorophyll-related phenomena based on the 18-band chlorophyll band set (MODE 4).
• Perform detailed spectral analysis using the full 62-band mode (MODE 1).
• Conduct higher-resolution analysis using the 37-band half-swath mode (MODE 5).

Strengths

• Provides data in five distinct, well-defined imaging modes with specific spectral band counts (18 to 62).
• Offers high spatial resolution with ground sampling distances of 17m or 34m at nadir from a 556km altitude.
• Data is processed daily to Level 1A, suggesting a systematic processing pipeline.
• Acquisition status (successful, cloudy, failed) is reported via a separate external resource.

Limitations

• Description metadata is limited; actual data quality, file formats, and size require manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale projects.

Provenance

Source

European Space Agency (ESA)

Collection Method

Acquired by the CHRIS sensor on the Proba-1 satellite, processed daily to Level 1A.

Time Range

Systematic acquisitions according to a plan; specific temporal coverage is not stated.

Freshness

Last updated 2022-12-22 00:00:00; freshness should be verified.

Geography

Target-specific areas; new sites can be requested for addition to the acquisition plan.