SASSIE ECCO: Arctic Ocean Mixing Diagnostics on a High-Resolution Grid, 2014-2021

Daily-averaged model-simulated KPP diagnostic terms and coefficients from the SASSIE ECCO V1R1 ocean and sea-ice state estimate. The dataset covers the period from 2014-01-15 to 2021-02-07, providing data at 90 depth levels from 0.5 to 6760 meters on a high-resolution curvilinear grid focused on the Arctic. It was produced by downscaling the global ECCO state estimate to 1/12 degree grid cells in support of NASA's SASSIE field experiment.

Use Cases

• Analyzing vertical mixing processes in the Arctic Ocean based on KPP diagnostic terms.
• Studying the impact of sea ice melt on ocean stratification and salinity anomalies.
• Validating or initializing regional ocean models using the dynamically consistent 3D state reconstructions.
• Investigating time-evolving ocean and sea-ice states in the polar region from 2014 to 2021.

Strengths

• Covers a 7-year time series from 2014 to 2021 with daily temporal resolution.
• Provides data at 90 vertical depth levels, from surface (0.5m) to deep ocean (6760m).
• Uses a high-resolution 1/12 degree curvilinear grid (llc1080) downscaled for the Arctic domain.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Last updated 2021-02-08; freshness should be verified.

Provenance

Source

POCLOUD, via NASA's Earthdata platform.

Collection Method

Generated from the SASSIE ECCO Version 1 Release 1 (V1R1) ocean and sea-ice state estimate, which combines observations with a general circulation model.

Time Range

2014-01-15 to 2021-02-07

Freshness

Data coverage ends 2021-02-07; last metadata update was 2021-02-08.

Geography

Arctic polar region, on a curvilinear grid focusing on the Arctic domain.