Terra MODIS NSST: Global Nighttime Sea Surface Temperature

Global nighttime sea surface temperature (SST) estimates are derived from Terra MODIS thermal infrared observations, specifically acquired during local night to minimize diurnal warming effects. This near real-time (NRT) data supports ocean front detection, fisheries habitat modeling, and climate analysis. The dataset includes a quality flag for each SST measurement, but uncertainties can increase under thin clouds or heavy aerosols.

Use Cases

• Detecting ocean fronts based on thermal gradients in sea surface temperature.
• Supporting fisheries habitat models by pairing SST with chlorophyll-a and PAR data.
• Providing stable inputs for air–sea flux and climate trend analyses.
• Monitoring near real-time ocean surface conditions for operational oceanography.

Strengths

• Data is processed in near real-time, providing a quicklook snapshot of ocean conditions.
• Focus on nighttime acquisitions minimizes diurnal warming and sun glint, providing a stable baseline.
• The dataset is produced by the authoritative Ocean Biology DAAC (OB_DAAC) and appears on multiple platforms.

Limitations

• Metadata completeness is low; specific row/column counts and a definitive author are not provided.
• Uncertainties increase under thin clouds, heavy aerosols/dust, or strong thermal gradients.
• The 'quicklook' nature indicates it uses less-than-optimal ancillary data and calibration compared to standard science products.

Provenance

Source

Ocean Biology DAAC (OB_DAAC), using Terra MODIS satellite observations.

Collection Method

Derived from thermal infrared observations acquired during local night.

Freshness

Last updated on 2026-04-09 according to two platform entries.

Geography

Global