ECCO V4r4: Daily Ocean and Sea-Ice Surface Stress on a 0.5-Degree Grid, 1992-2017

Daily-averaged ocean and sea-ice surface stress data interpolated to a regular 0.5-degree grid from the ECCO Version 4 revision 4 state estimate. The dataset is a dynamically consistent reconstruction produced by NASA, covering the 26-year period from 1992-01-01 to 2018-01-01. It assimilates observations from multiple satellite altimeters, radiometers, scatterometers, gravimeters, and in-situ oceanographic programs.

Use Cases

• Modeling ocean circulation and climate dynamics based on the daily-averaged surface stress fields.
• Analyzing long-term trends in wind stress over the ocean based on the 26-year temporal coverage.
• Studying sea-ice motion and deformation in polar regions based on the included sea-ice surface stress.
• Validating or forcing other ocean and climate models based on the 0.5-degree gridded data.

Strengths

• Covers a 26-year period from 1992 to 2018, providing a long-term climate record.
• Assimilates data from over 10 distinct satellite missions and multiple in-situ observation programs.
• Provides data on a consistent 0.5-degree global grid, facilitating spatial analysis.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data freshness should be verified as the last update date is listed as 2026-03-13, which is in the future.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Dynamically and kinematically-consistent reconstruction from the MIT general circulation model (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 03:04:39.508870; freshness should be verified.

Geography

Global