MERRA-2 M2TUNPMST: 3D Monthly Diurnal Moist Process Diagnostics

M2TUNPMST is a 3-dimensional monthly diurnal means data collection from NASA's MERRA-2 atmospheric reanalysis. It contains assimilations of moist processes diagnostics, such as convective rainwater source and precipitation fluxes, on 42 pressure levels. The dataset covers the period from 1980 to the present and is produced by NASA's Global Modeling and Assimilation Office using the GEOS model.

Use Cases

• Analyzing convective precipitation patterns based on convective rainwater source diagnostics.
• Studying the vertical distribution of precipitation fluxes based on 3D flux of ice and liquid precipitation data.
• Validating climate model outputs based on assimilated moist processes diagnostics on 42 pressure levels.
• Investigating diurnal cycles in atmospheric moisture based on 3-hourly time-stamped monthly means.

Strengths

• Data is produced by NASA's Global Modeling and Assimilation Office, an authoritative source.
• Coverage spans from 1980 to the present, providing a long-term record.
• Data is provided on 42 pressure levels, offering detailed vertical resolution.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Assimilated from satellite and observational data using the Goddard Earth Observing System Model (GEOS) version 5.12.4.

Time Range

1980-present

Freshness

Last updated 2026-03-13 00:28:10.486438; freshness should be verified.

Geography

Global, 0.625 x 0.5 degree resolution