ECCO V4r4: Daily Atmosphere Surface Variables on LLC90 Grid, 1992-2017

ECCO Version 4 Release 4 provides daily-averaged atmosphere surface temperature, humidity, winds, and pressure on a native LLC90 grid. The dataset is a dynamically consistent reconstruction from NASA, covering the 26-year period from 1992-01-01 to 2018-01-01. It assimilates observations from multiple satellite missions and in-situ programs including Argo, WOCE, and GO-SHIP.

Use Cases

• Validate climate model outputs based on the assimilated satellite and in-situ observations mentioned in the description.
• Analyze long-term trends in surface humidity and temperature based on the 26-year daily time series.
• Study ocean-atmosphere coupling dynamics based on the consistent reconstructions of surface winds and pressure.
• Assimilate data into numerical weather prediction models based on the gridded surface variables.

Strengths

• Covers a 26-year period from 1992 to 2018, providing a long-term climate record.
• Assimilates data from over 10 satellite missions and multiple in-situ programs, including Argo and GRACE.
• Provides dynamically and kinematically consistent reconstructions of ocean, sea-ice, and atmospheric states.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data is stored in non-standard formats like BIN and ISO, which may require specialized tools to read.

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 03:05:39.237498; freshness should be verified.

Geography

Global