MERRA-2: Daily Atmospheric Statistics from NASA Reanalysis

M2SDNXSLV is a daily statistics collection from NASA's MERRA-2 global atmospheric reanalysis. It includes daily means, minima, maxima, and maximum precipitation rates, covering the period from 1980 to the present. The data is produced by NASA's Global Modeling and Assimilation Office using the GEOS model.

Use Cases

• Analyze long-term temperature trends based on daily mean air temperature at 2-meter.
• Study extreme precipitation events based on maximum precipitation rate.
• Model climate variability based on daily minimum and maximum air temperature statistics.
• Validate weather models based on assimilated global atmospheric reanalysis data.

Strengths

• Data covers a long temporal range from 1980 to the present.
• Produced by NASA's Global Modeling and Assimilation Office, a authoritative source.
• Includes specific derived statistics like daily mean, minimum, maximum, and maximum precipitation rate.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data has a latency of approximately three weeks after the end of a month.

Provenance

Source

NASA Global Modeling and Assimilation Office

Collection Method

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

Time Range

1980-present

Freshness

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

Geography

Global