TRPSCRQ6H3D: Tropospheric Specific Humidity Reanalysis 2005-2021

2005-2021 data provides a 6-hourly, 3-dimensional reanalysis of specific humidity in the troposphere. It is part of the Tropospheric Chemical Reanalysis v2 (TCR-2), produced using JPL's MOMO-Chem data assimilation framework that optimizes concentrations and emissions from multiple satellite sensors. The dataset offers global coverage at a spatial resolution of 1.125 x 1.125 degrees across 27 vertical pressure levels from 1000 to 60 hPa.

Use Cases

• Validating global climate model outputs for specific humidity based on the assimilated satellite observations.
• Analyzing long-term trends in tropospheric water vapor content using the 17-year time series.
• Studying vertical profiles of atmospheric moisture across 27 pressure levels for process understanding.
• Assimilating this reanalysis field as a meteorological constraint in independent chemical transport simulations.

Strengths

• Provides a 17-year continuous record (2005-2021) for climate trend analysis.
• Offers high temporal resolution (6-hourly) and vertical detail across 27 pressure levels.
• Data is produced using a sophisticated multi-species, multi-sensor data assimilation framework (MOMO-Chem).

Limitations

• Key metadata such as row count, file size, and author are missing or unknown across platforms.
• The license is ambiguously listed as 'other-license-specified' without clear terms.
• Spatial resolution (1.125 degrees) may be coarse for regional-scale studies.

Provenance

Source

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

Collection Method

Data assimilation using the Multi-mOdel Multi-cOnstituent Chemical (MOMO-Chem) framework applied to multiple satellite sensors.

Time Range

2005 to 2021

Freshness

2026-04-09 21:24:44.465252

Geography

Global