S5P_L1B_RA_BD6_HiR_NRT: Near-Real-Time Satellite Radiance for Atmospheric Monitoring

Sentinel-5P's TROPOMI instrument provides near-infrared radiance data within three hours of measurement for rapid atmospheric assessment. Each ~0.650 GB netCDF4 file contains one orbital granule of calibrated radiance, irradiance, and engineering data from the 675nm to 775nm wavelength band. This near-real-time product is a joint initiative of the European Space Agency and the Kingdom of the Netherlands, processed by the Royal Netherlands Meteorological Institute.

Use Cases

• Rapid air quality event detection based on near-infrared radiance measurements.
• Calibration and validation of atmospheric models using Level-1B radiance and irradiance products.
• Near-real-time assessment of atmospheric scattering and radiative forcing.
• Operational monitoring of ultraviolet-visible to shortwave infrared spectral regions.

Strengths

• Data is available within three hours of satellite measurement, enabling rapid analysis.
• Each data granule provides a complete orbital pass with a consistent file size of ~0.650 GB.
• Data is produced by a dedicated processor (KNMI TROPOMI L01B) for a well-defined hyperspectral instrument.

Limitations

• Data is only archived for up to ten days, limiting its use for long-term record analysis.
• Column names and specific data structure are not provided in the available metadata.
• There is a version conflict between sources (V3 vs. V2), indicating potential inconsistency across platforms.

Provenance

Source

European Space Agency (ESA) Copernicus Sentinel-5 Precursor mission, processed by Koninklijk Nederlands Meteorologisch Instituut (KNMI).

Collection Method

Generated by the TROPOMI L01B processor from Level-0 input and auxiliary data.

Time Range

Near-real-time coverage, typically within three hours of measurement.

Freshness

2026-04-09 22:06:51.606457

Geography

Global coverage from a sun-synchronous orbit.