S5P_L2__SO2____HiR: Sentinel-5P TROPOMI Sulfur Dioxide Measurements

Sentinel-5P TROPOMI provides sulfur dioxide (SO2) measurements at a nadir spatial resolution of approximately 5.5 km. The data is retrieved using the Differential Optical Absorption Spectroscopy (DOAS) method across ultraviolet spectral windows from 312 to 390 nm. This Level-2 product is part of a suite of atmospheric composition measurements including ozone, formaldehyde, and aerosols.

Use Cases

• Monitoring volcanic SO2 emissions based on high-resolution (~5.5 km) satellite observations.
• Tracking industrial pollution sources using the derived slant column density (SCD) of SO2.
• Assessing atmospheric chemistry and transport models with global, time-series SO2 data.
• Studying the impact of cloud cover on SO2 retrieval accuracy using the algorithm's cloud correction.

Strengths

• Provides high spatial resolution (~5.5 km at nadir) SO2 data starting from August 6, 2019.
• Uses a sophisticated retrieval algorithm (DOAS) with three spectral windows (312-326 nm, 325-335 nm, 360-390 nm) to account for non-linear effects.
• Is part of the Copernicus Sentinel mission family, indicating a standardized and sustained data collection program.

Limitations

• Metadata completeness is low: column names, row counts, and exact dataset size are unknown across all sources.
• The dataset requires users to select different collections (S5P_L2__SO2____1, S5P_L2__SO2____HiR_1, S5P_L2__SO2____HiR_2) based on three distinct time periods, complicating access.
• License information is inconsistently reported as 'other-license-specified' or 'None', creating uncertainty about reuse terms.

Provenance

Source

European Space Agency (ESA) and the Kingdom of the Netherlands via the Copernicus Sentinel-5 Precursor mission.

Collection Method

Data gathered by the TROPOMI hyperspectral spectrometer using nadir-viewing push-broom grating.

Time Range

Data spans from before August 6, 2019 to after July 13, 2020, with ongoing collection.

Freshness

2026-04-09 22:06:07.394521

Geography

Global coverage from the Sentinel-5P satellite.