GHRSST Level 4 MW_IR_OI: Global Daily Sea Surface Temperature Analysis

A global Level 4 sea surface temperature (SST) analysis produced daily on a 0.09-degree grid by Remote Sensing Systems for the Group for High Resolution Sea Surface Temperature (GHRSST). This version 5.0 product uses optimal interpolation (OI) to blend data from multiple microwave and infrared satellite sensors, including GMI, TMI, AMSRE, AMSR2, WindSat, MODIS, and VIIRS. The dataset was last updated by the National Aeronautics and Space Administration on March 13,我们发现了一个错误。

Use Cases

• Modeling global ocean heat content and climate patterns based on daily, gridded sea surface temperature.
• Studying diurnal warming effects on the ocean surface based on the updated model mentioned in the description.
• Comparing satellite-derived SST from microwave and infrared sensors based on the through-cloud capabilities and high spatial resolution described.
• Validating and improving sensor-specific error statistics (SSES) for microwave radiometers as referenced in the version 5.0 updates.

Strengths

• Integrates data from at least seven distinct satellite sensors, providing multi-source validation.
• Offers a daily analysis on a consistent 0.09-degree global grid.
• Version 5.0 includes specific updates to the diurnal warming model, sensor error statistics, and correlation models.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Does not incorporate in situ SST data from sources like drifting buoys, as stated in the description.
• Row count is unknown, which may limit suitability assessment for large-scale modeling.

Provenance

Source

Remote Sensing Systems (REMSS) for the Group for High Resolution Sea Surface Temperature (GHRSST), hosted by the National Aeronautics and Space Administration.

Collection Method

Optimal interpolation (OI) of daily satellite observations from microwave and infrared radiometers.

Time Range

null

Freshness

Last updated 2026-03-13 02:32:32.577482; freshness should be verified.

Geography

Global ocean coverage.