ECCO V4r4: Monthly Sea Surface Height on LLC90 Grid, 1992-2017

1992-01-01 to 2018-01-01 monthly-averaged dynamic sea surface height and model sea level anomaly data on the native LLC90 grid. The dataset is a dynamically consistent ocean state estimate from NASA's ECCO project, produced by fitting a 1-degree global MITgcm model run to multiple satellite and in-situ observations.

Use Cases

• Analyzing long-term sea level trends based on monthly-averaged dynamic sea surface height.
• Validating ocean circulation models against the kinematically-consistent ECCO state estimate.
• Studying ocean climate variability using data constrained by satellite altimetry and sea surface temperature.
• Investigating sea ice interactions using a model fit to sea ice concentration observations.

Strengths

• Covers a 26-year time range from 1992 to 2018.
• Assimilates observations from over 10 satellite missions and multiple in-situ programs.
• Provides data on a native high-resolution LLC90 model grid for consistency.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data freshness should be verified as the last metadata update is far in the future (2026).

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Free-running MITgcm model solution fit to observations in a least-squares sense.

Time Range

1992-01-01 to 2018-01-01

Freshness

Last updated 2026-03-13 02:55:02.464344; freshness should be verified.

Geography

Global