ECCO V4r4: Monthly Ocean Bottom Pressure on a 0.5-Degree Grid, 1992-2017

Monthly-averaged ocean bottom pressure data interpolated to a regular 0.5-degree global grid. The dataset is a dynamically consistent state estimate from the ECCO V4r4 model, produced by NASA and covering the period from 1992-01-01 to 2018-01-01. It assimilates observations from multiple satellite missions and in-situ programs.

Use Cases

• Modeling deep ocean circulation and mass transport based on bottom pressure data.
• Analyzing long-term trends in ocean mass and its contribution to sea level rise over the 26-year period.
• Validating other ocean models or satellite gravimetry data (e.g., GRACE) using this assimilated, gridded product.
• Studying the ocean's response to atmospheric forcing and climate variability using a consistent state estimate.

Strengths

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

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for specific ML tasks.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Dynamically and kinematically-consistent reconstruction from 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 02:57:20.747579; freshness should be verified.

Geography

Global ocean