ECCO V4r4b: Global Mean Atmospheric Pressure, 1992-2017

ECCO Version 4 Release 4b provides hourly global mean atmospheric pressure from a dynamically consistent ocean and sea-ice state estimate. The dataset is a free-running solution of the MIT general circulation model, fit to observations from multiple satellite and in-situ programs. It covers a 26-year period from 1992-01-01 to 2018-01-01 and is produced by NASA.

Use Cases

• Validate climate model outputs based on the global mean atmospheric pressure time series.
• Study atmosphere-ocean coupling dynamics based on the model's consistent reconstructions of ocean, sea-ice, and atmospheric states.
• Analyze long-term trends in atmospheric pressure based on the 26-year hourly record.
• Assimilate pressure data into other models based on the ECCO state estimate methodology.

Strengths

• Covers a 26-year time range from 1992 to 2018.
• Integrates observational constraints from over 10 distinct satellite missions and in-situ programs.
• Provides hourly instantaneous data points for high temporal 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

Dynamically and kinematically-consistent reconstruction (state estimate) from the MITgcm, fit to observations in a least-squares sense.

Time Range

1992-01-01T12:00:00 to 2018-01-01T00:00:00

Freshness

Last updated 2026-03 13 03:05:23.774020; freshness should be verified.

Geography

Global