TRPSCRESO2TM2D: Global Surface SO2 Emissions, 2005-2021

Monthly global surface sulfur dioxide emissions from 2005 to 2021 are provided at a 1.125 x 1.125-degree spatial resolution. This dataset is part of the Tropospheric Chemical Reanalysis v2 (TCR-2), which uses JPL's MOMO-Chem data assimilation framework to optimize emissions and concentrations from multiple satellite sensors. Data files are in netCDF version 4 format, with one file per year.

Use Cases

• Tracking regional SO2 emission trends over time based on the 17-year monthly time series.
• Validating bottom-up emission inventories using the satellite-constrained reanalysis product.
• Analyzing spatial patterns of total SO2 sources at the 1.125-degree global grid resolution.
• Providing boundary conditions for regional air quality models using the assimilated chemical reanalysis data.

Strengths

• Covers a 17-year period from 2005 to 2021, providing a long-term record.
• Uses a sophisticated multi-species data assimilation framework (MOMO-Chem) to constrain emissions.
• Has a defined spatial resolution of 1.125 x 1.125 degrees and monthly temporal resolution.

Limitations

• Key metadata such as row count, file size, and specific license terms are missing or conflicting across sources.
• The data's temporal coverage ends in 2021, which may limit analysis of recent trends.
• Column names and a detailed data dictionary are not provided, hindering precise interpretation.

Provenance

Source

National Aeronautics and Space Administration (NASA), Principal Investigator: Miyazaki, Kazuyuki.

Collection Method

Satellite reanalysis using JPL's Multi-mOdel Multi-cOnstituent Chemical (MOMO-Chem) data assimilation framework.

Time Range

2005 to 2021

Freshness

2026-04-09 21:37:04.679152

Geography

Global