ECCO V4r4: Monthly Ocean and Sea-Ice Surface Stress on LLC90 Grid, 1992-2017

Monthly-averaged ocean and sea-ice surface stress data on the native Lat-Lon-Cap 90 (LLC90) model grid from the ECCO Version 4 Release 4 state estimate. The dataset is a dynamically consistent reconstruction produced by NASA, fitting a 1-degree global MITgcm model to multiple observational constraints. It covers the period from January 1992 to January 2018.

Use Cases

• Calibrating or validating ocean circulation models based on the described surface stress fields.
• Analyzing long-term trends in wind-driven ocean forcing based on the 26-year temporal coverage.
• Studying polar climate and sea-ice mechanics using the integrated sea-ice surface stress data.
• Assimilating observational data into reanalysis products based on the described satellite and in-situ constraints.

Strengths

• Covers a 26-year period from 1992 to 2018, providing a multi-decadal climate record.
• Incorporates multiple observational constraints including satellite altimetry, radiometers, gravimeters, and in-situ measurements.
• Provides data on a native high-resolution model grid (LLC90) for direct use in simulations.

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; the last metadata update is dated 2026-03-13.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

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

Time Range

1992-01-01 to 2018-01-01

Freshness

Last metadata update 2026-03-13; data covers 1992-2018.

Geography

Global