TRPSCRAERNH42H2D: Ammonium Aerosol Surface Concentrations

2005-2021 ammonium aerosol surface concentrations are provided at 2-hourly resolution, generated by the Tropospheric Chemical Reanalysis v2 (TCR-2). TCR-2 uses JPL's MOMO-Chem framework to assimilate satellite data, optimizing both concentrations and emissions. The data are stored in netCDF files with a spatial resolution of 1.125 degrees.

Use Cases

• Analyzing long-term trends in ammonium aerosol pollution based on the 2005-2021 time series.
• Modeling regional air quality impacts using the 2-hourly temporal and 1.125-degree spatial resolution.
• Studying emissions optimization through the MOMO-Chem data assimilation framework.
• Integrating surface aerosol concentrations into larger atmospheric chemistry models.

Strengths

• Provides a 17-year continuous time series from 2005 to 2021.
• Offers high temporal resolution with 2-hourly data points.
• Utilizes a sophisticated data assimilation framework (MOMO-Chem) that optimizes both concentrations and emissions.

Limitations

• Column names and exact data structure are unknown from the provided metadata.
• There is a conflict in the 'last updated' metadata, with one source reporting 2026-04-09 and another 2021-12-31.
• Specific license details are unclear, only listed as 'other-license-specified'.

Provenance

Source

GES_DISC, with Principal Investigator Kazuyuki Miyazaki.

Collection Method

Generated via the Tropospheric Chemical Reanalysis v2 (TCR-2) using JPL's MOMO-Chem data assimilation framework from multiple satellite sensors.

Time Range

2005-2021

Freshness

2026-04-09 21:37:36.692817

Geography

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