GHRSST Level 4 MW_OI Global Foundation Sea Surface Temperature analysis version 5.0 from R

A Group for High Resolution Sea Surface Temperature (GHRSST) global Level 4 sea surface temperature analysis produced daily by Remote Sensing Systems for NASA. The dataset provides a 0.25-degree grid resolution global picture of sea surface temperature using optimal interpolation from multiple microwave satellite sensors, with through-cloud capabilities. Version 5.0 includes updates to the diurnal warming model, sensor-specific error statistics, sensor correlation model, and quality mask.

Use Cases

• Modeling global ocean heat content and climate patterns based on daily sea surface temperature grids.
• Assimilating satellite-derived SST data into numerical weather prediction models based on the through-cloud observation capability.
• Analyzing diurnal warming effects on ocean temperature using the updated model mentioned in the description.
• Comparing SST measurements from different microwave sensors (GMI, TMI, AMSRE, AMSR2, WindSat) based on the sensor-specific error statistics.

Strengths

• Global coverage with a 0.25-degree spatial grid resolution.
• Daily temporal resolution for tracking short-term ocean temperature changes.
• Integrates data from five specific microwave sensors (GMI, TMI, AMSRE, AMSR2, WindSat) with through-cloud capabilities.
• Version 5.0 includes specific updates to the diurnal warming model and sensor error statistics.

Limitations

• Row count and dataset size are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The analysis does not incorporate in situ data such as drifting buoy SST, as stated in the description.

Provenance

Source

National Aeronautics and Space Administration (NASA), Remote Sensing Systems.

Collection Method

Optimal interpolation of daily microwave satellite sensor data.

Time Range

Daily production; specific temporal coverage is not stated.

Freshness

Last updated 2026-03-13 02:39:58.829087; freshness should be verified.

Geography

Global.