ECCO V4r4b: Daily Sea Surface Height on LLC90 Grid, 1992-2018

Daily-averaged dynamic sea surface height and model sea level anomaly data on the native LLC90 grid from the ECCO Version 4 Release 4b ocean and sea-ice state estimate. The dataset is a free-running solution of the MITgcm model fit to observations from multiple satellite and in-situ programs. It covers the period from 1992-01-01 to 2018-01-01 and was produced by the National Aeronautics and Space Administration.

Use Cases

• Modeling ocean circulation dynamics based on the three-dimensional, time-evolving state estimate.
• Analyzing sea level anomaly trends based on daily-averaged sea surface height data.
• Validating satellite altimeter observations from missions like Jason and CryoSat-2 against a model-constrained reconstruction.
• Studying ocean and sea-ice interactions based on the kinematically-consistent state reconstruction.

Strengths

• Integrates multiple observational constraints including satellite altimetry, sea surface temperature, salinity, and in-situ measurements.
• Provides a 26-year temporal coverage from 1992 to 2018.
• Produces a dynamically and kinematically-consistent reconstruction of ocean and sea-ice states.

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

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

Time Range

1992-01-01 to 2018-01-01

Freshness

Last updated 2026-03-13 03:03:39.170255; freshness should be verified.

Geography

Global ocean