TROPESS HNO3: Monthly 3D Nitric Acid Concentrations 2005-2021

From 2005 to 2021, this dataset provides monthly 3-dimensional vertical concentrations of nitric acid (HNO3) as part of the Tropospheric Chemical Reanalysis v2 (TCR-2). It is produced using JPL's MOMO-Chem data assimilation framework, which simultaneously optimizes concentrations and emissions from multiple satellite sensors. The data are structured as netCDF files with a spatial resolution of 1.125 x 1.125 degrees across 27 pressure levels from 1000 to 60 hPa.

Use Cases

• Analyzing global trends in nitric acid concentrations based on monthly, 3-dimensional data.
• Modeling tropospheric chemistry and nitrogen cycles using assimilated satellite observations.
• Studying vertical distribution of HNO3 across 27 pressure levels from 1000 to 60 hPa.
• Validating atmospheric models with reanalysis data from the TCR-2 framework.
• Investigating emissions and concentrations of multiple species via the MOMO-Chem assimilation system.

Strengths

• Provides a 17-year continuous time series (2005-2021) for longitudinal analysis.
• Offers high vertical resolution with data across 27 distinct pressure levels.
• Utilizes a sophisticated multi-species, multi-model assimilation framework (MOMO-Chem) from JPL.
• Has a defined spatial resolution of 1.125 x 1.125 degrees for global coverage.

Limitations

• Column names and detailed variable metadata are not provided in the source descriptions.
• License information is inconsistently reported as 'other-license-specified' or null.
• The dataset's size and row counts are unknown across all platforms.

Provenance

Source

GES_DISC, with principal investigator Kazuyuki Miyazaki.

Collection Method

Data assimilation from multiple satellite sensors using JPL's MOMO-Chem framework.

Time Range

2005-2021

Freshness

2026-04-09 21:38:24.056642

Geography

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