MODIS/Aqua MYD35_L2: Cloud Mask and Spectral Test Results

The MODIS/Aqua Cloud Mask dataset provides global, 5-minute swath data for cloud detection and atmospheric analysis. It contains 9 scientific parameters, including cloud mask quality assurance and ancillary data, with cloud mask flags stored at 1-kilometer resolution and other parameters like geolocation at 5-kilometer resolution. The algorithm uses visible and infrared threshold tests to determine confidence levels for an unobstructed Earth surface view, also indicating scene shadows.

Use Cases

• Cloud detection and classification based on visible and infrared spectral tests.
• Atmospheric quality assurance for surface observation studies using the cloud mask confidence levels.
• Geospatial analysis of cloud shadows and their impact on surface reflectance.
• Time-series analysis of global cloud cover using 5-minute swath data.

Strengths

• Contains 9 distinct scientific parameters for detailed atmospheric analysis.
• Provides data at two spatial resolutions: 1 km for cloud mask and 5 km for geolocation.
• Supported by a documented algorithm using multiple spectral tests for reliability.

Limitations

• Specific row counts, file sizes, and detailed column names are not provided across any source.
• The 'last updated' date of 2026-04-10 appears to be a future date, indicating potential metadata inaccuracy.
• License information is inconsistently reported as 'other-license-specified' or null.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Satellite remote sensing from the MODIS instrument aboard the Aqua satellite.

Freshness

2026-04-10 00:56:38.250559

Geography

Global