TROPESS Chemical Reanalysis: Surface SO2 Concentrations 2005-2021

2005-2021 surface sulfur dioxide concentrations are provided by the Tropospheric Chemical Reanalysis v2 (TCR-2). The dataset uses JPL's MOMO-Chem framework to assimilate multiple satellite sensors, producing optimized concentrations and emissions. Data are stored as yearly netCDF files with 2-hourly temporal and 1.125-degree spatial resolution.

Use Cases

• Analyzing long-term trends in global SO2 pollution based on the 2005-2021 time series.
• Assessing regional emission sources using the assimilated concentration and emission data.
• Modeling atmospheric chemistry processes with the 2-hourly, 1.125-degree resolution reanalysis fields.
• Validating satellite sensor retrievals against the multi-sensor assimilated product.

Strengths

• Provides a 17-year continuous reanalysis (2005-2021) for long-term trend analysis.
• Uses a sophisticated multi-model, multi-constituent assimilation framework (MOMO-Chem) from JPL.
• Offers high temporal resolution (2-hourly) and consistent spatial resolution (1.125 degrees).

Limitations

• Metadata completeness is low; specific column names, row counts, and file sizes are unknown.
• Platforms disagree on the last update date (2026-04-09 vs. 2021-12-31), indicating potential metadata inconsistency.
• The license is ambiguously specified as 'other-license-specified' without clear terms.

Provenance

Source

NASA JPL's Multi-mOdel Multi-cOnstituent Chemical (MOMO-Chem) data assimilation framework, using multiple satellite sensors.

Collection Method

Chemical reanalysis via data assimilation, simultaneously optimizing concentrations and emissions.

Time Range

2005-2021

Freshness

2026-04-09 21:23:39.142155

Geography

Global, at a spatial resolution of 1.125 x 1.125 degrees.