MODIS/Aqua MYD09GQK: Daily Global Surface Reflectance at 250m Resolution
Updated 3mo ago
8filesBIN
Available on 1 platform
Sign in to view source links and access this dataset
Description
The MYD09GQK product provides daily surface reflectance data at a 250-meter resolution from MODIS bands 1 and 2. This Near Real Time (NRT) dataset from NASA's Aqua satellite estimates surface spectral reflectance as measured at ground level, with quality information provided at pixel, band, and file levels. The data is formatted in ISO, BIN, PDF, and JPEG files.
Use Cases
Monitor daily land surface changes based on 250-meter resolution surface reflectance.
Calculate vegetation indices like NDVI based on the provided MODIS bands 1 and 2.
Perform atmospheric correction validation based on the estimated ground-level reflectance.
Assess data quality for specific regions based on the three-level quality information provided.
Strengths
Provides daily, near real-time global coverage.
Offers surface reflectance data at a 250-meter spatial resolution.
Includes quality assessment information at three levels of detail.
Limitations
Column-level documentation is absent; field semantics must be inferred after download.
Row count and total dataset size are unknown, which may limit suitability assessment.
Provenance
Source
National Aeronautics and Space Administration
Collection Method
Satellite observation from the MODIS instrument aboard the Aqua spacecraft.
Time Range
Daily coverage.
Freshness
Last updated 2026-03-13 00:20:42.779438; freshness should be verified.
Geography
Global coverage on a SIN grid.
License is listed as 'other-license-specified'; specific terms must be reviewed before use.