TRPSCRPS6H2D: Global Surface Pressure from Tropospheric Chemical Reanalysis

TROPESS Chemical Reanalysis v2 (TCR-2) provides a 17-year global record of surface pressure, a key meteorological field, optimized through a multi-species data assimilation framework. The dataset offers 6-hourly data on a 1.125-degree grid from 2005 to 2021, stored in netCDF4 format. Principal investigator Kazuyuki Miyazaki led the project using JPL's MOMO-Chem system to simultaneously refine concentrations and emissions from multiple satellite sensors.

Use Cases

• Validating and improving global climate model simulations based on assimilated surface pressure fields.
• Analyzing long-term trends in atmospheric circulation and weather patterns from the 6-hourly time series.
• Providing boundary conditions for regional air quality and chemical transport models.
• Studying the coupling between meteorological fields and chemical species within the TCR-2 assimilation framework.

Strengths

• Covers a substantial 17-year time period from 2005 to 2021.
• Provides high temporal resolution with 6-hourly data points.
• Utilizes a sophisticated multi-constituent chemical data assimilation (MOMO-Chem) framework from JPL.
• Has a defined spatial resolution of 1.125 x 1.125 degrees.

Limitations

• Column names and a complete data dictionary are not provided in the available metadata.
• One source lists a future 'last updated' date (2026-04-09), which creates uncertainty about the actual metadata freshness.
• The specific license is only generically noted as 'other-license-specified', requiring further investigation for use.

Provenance

Source

National Aeronautics and Space Administration (NASA), Jet Propulsion Laboratory (JPL), Principal Investigator Kazuyuki Miyazaki.

Collection Method

Produced via the Tropospheric Chemical Reanalysis v2 (TCR-2) using the Multi-mOdel Multi-cOnstituent Chemical (MOMO-Chem) data assimilation framework integrating multiple satellite sensors.

Time Range

2005 to 2021

Freshness

2026-04-09 21:24:12.960210

Geography

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