MERRA-2 M2TMNPMST: Monthly Atmospheric Moist Process Diagnostics

42 pressure-level diagnostics from NASA's MERRA-2 reanalysis cover 1980 to present with a latency of about 3 weeks after each month. The collection includes parameters like convective rainwater source and 3D fluxes of ice and liquid precipitation. NASA's Global Modeling and Assimilation Office produces this data using the GEOS 5.12.4 model.

Use Cases

• Model convective precipitation processes based on convective rainwater source diagnostics.
• Analyze vertical distribution of precipitation based on 3D flux data across 42 pressure levels.
• Validate climate model outputs based on assimilated moist process diagnostics.
• Study long-term trends in atmospheric moisture based on monthly mean data from 1980-present.

Strengths

• Data is produced by NASA's Global Modeling and Assimilation Office, an authoritative source.
• Coverage spans from 1980 to present, providing a long-term climate record.
• Includes diagnostics across 42 pressure levels, offering vertical atmospheric detail.

Limitations

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

Provenance

Source

NASA Global Modeling and Assimilation Office (GMAO)

Collection Method

Assimilated reanalysis using the Goddard Earth Observing System Model (GEOS) version 5.12.4.

Time Range

1980-present

Freshness

Updated monthly with a latency of ~3 weeks after the end of a month.

Geography

Global