CHIRP: Calibrated Hyperspectral Infrared Radiances from S-NPP

SNDR13CHRP1SNCal provides calibrated Level 1 radiance data from the Cross-track Infrared Sounder (CrIS) on the S-NPP satellite. This product spans November 2, 2015 to August 31, 2016, offering a consistent spectral response function with SNPP-CrIS as the radiometric standard. It contains granule-based data with fields needed for atmospheric retrievals, such as cross-track, along-track, and field-of-view identifiers.

Use Cases

• Calibrating atmospheric retrieval algorithms based on the consistent spectral response function.
• Studying aerosol composition (dust, ash, smoke) using hyperspectral infrared radiance measurements.
• Analyzing sulfur dioxide and other trace gas concentrations from calibrated infrared spectra.
• Comparing radiance data across satellite platforms (AIRS, CrIS) for climate trend analysis.
• Processing granule-level satellite data for specific geographic regions using cross-track and along-track coordinates.

Strengths

• Provides a consistent spectral response function across AIRS and CrIS instruments, reducing inter-instrument offsets.
• Contains all granule-level information needed for retrievals, including cross-track, along-track, and FOV ID.
• Covers a specific, defined time range (November 2, 2015 to August 31, 2016) for S-NPP CrIS high-resolution data.

Limitations

• Column names and dataset size (rows, file size) are not provided in any source, limiting detailed understanding of structure.
• License is listed as 'other-license-specified' or 'None', requiring users to investigate terms before use.
• The dataset appears to be a supplementary product (SNDR13CHRP1SNCal) not included in the main CHIRP release.

Provenance

Source

GES_DISC

Collection Method

Derived from the CrIS instrument on the S-NPP satellite platform.

Time Range

November 2, 2015 to August 31, 2016

Freshness

2026-04-09 20:30:28.504465

Geography

Global coverage from a sun-synchronous orbit.