ECCO V4r4: Daily Global Atmosphere Surface Variables on 0.5-Degree Grid, 1992-2017

Global daily-averaged atmosphere surface temperature, humidity, wind, and pressure data interpolated to a regular 0.5-degree grid. The dataset is a dynamically consistent reconstruction from the ECCO Version 4 revision 4 ocean and sea-ice state estimate produced by NASA. It covers the period from 1992-01-01 to 2018-01-01.

Use Cases

• Analyzing global climate trends based on daily surface temperature and pressure fields.
• Validating atmospheric model outputs against a dynamically consistent reconstruction.
• Studying ocean-atmosphere interactions using co-estimated surface wind and humidity data.
• Investigating long-term changes in sea surface conditions from the assimilated satellite and in-situ observations.

Strengths

• Covers a 26-year time range from 1992 to 2018.
• Assimilates multiple observational constraints including satellite altimetry, radiometry, gravimetry, and in-situ programs like Argo and WOCE.
• Provides data on a regular 0.5-degree spatial grid.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data freshness should be verified as the last metadata update is listed for a future date (2026-03 13).

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Dynamically and kinematically-consistent reconstruction from a free-running MITgcm solution fit to observations in a least-squares sense.

Time Range

1992-01-01 to 2018-01-01

Freshness

Last updated 2026-03-13 03:05:48.224240; freshness should be verified.

Geography

Global