ATom Simulated Atmospheric Chemistry Model Reactivities

Simulated atmospheric data provides concentrations of selected trace gases for 14,880 air parcels along a north-south flight path over the Pacific. The dataset includes modeled ozone production and loss and methane loss reactivities from six global chemistry models (CAM, GEOS-Chem, GFDL, GISS-E2.1, GMI, UCI) initialized for five different days in August. It was produced by the National Aeronautics and Space Administration, with model years spanning from 1997 to 2016.

Use Cases

• Comparing ozone production and loss rates across six different global atmospheric chemistry models.
• Analyzing methane loss reactivities initialized from simulated trace gas concentrations along a Pacific flight path.
• Studying the sensitivity of model outputs to different initialization dates in August.
• Validating atmospheric chemistry mechanisms using a common simulated data stream of 14,880 air parcels.

Strengths

• Includes outputs from six distinct global atmospheric chemistry models (CAM, GEOS-Chem, GFDL, GISS-E2.1, GMI, UCI), enabling comparative analysis.
• Provides a substantial simulated observational base of 14,880 air parcels for model initialization.
• Covers a multi-decade model year range from 1997 to 2016, offering historical context.

Limitations

• The exact column names and data structure are not provided by any source, limiting detailed understanding.
• There is a conflict in the reported last updated date: one source states 2026-03-13, while another states 2016-08-21.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Simulated data stream representative of an Atmospheric Tomography (ATom) mission flight, combined with modeled reactivities from six global chemistry models.

Time Range

1997 to 2016 (modeled years)

Freshness

2026-03-13 08:23:08.914846

Geography

Simulated north-south flight path along 180-degrees longitude over the Pacific basin.