Aqua MODIS Daily Surface Reflectance Global 500m Grid
Description
MODIS/Aqua satellite data provides a seven-band estimate of surface spectral reflectance corrected for atmospheric gases, aerosols, and thin cirrus clouds. The Level 2G product serves as input for generating land products like vegetation indices, BRDF, and thermal anomaly data. The product is produced by LANCEMODIS.
Use Cases
Calculate vegetation indices from corrected reflectance bands for agricultural yield forecasting.
Detect thermal anomalies using surface reflectance data as an input for wildfire monitoring.
Monitor snow and ice cover dynamics by analyzing reflectance changes in specific spectral bands.
Generate Fraction of Photosynthetically Active Radiation (FPAR) estimates for ecosystem productivity studies.
Assess land surface changes over time by comparing daily reflectance values across the seven bands.
Strengths
Provides atmospheric correction for seven spectral bands, enhancing data utility.
Serves as foundational input for multiple derived land products like BRDF and 8-day composites.
Limitations
Specific row count, column details, and temporal coverage are unknown.
Data quality depends on the availability of ancillary MODIS products for water vapor, aerosol, and ozone correction.
Provenance
Source
NASA MODIS/Aqua satellite instrument.
Collection Method
Computed from MODIS Level 1B land bands 1-7 with atmospheric correction.
Freshness
Near Real Time (NRT) delivery indicates frequent updates.
Geography
Global coverage.
Requires understanding of MODIS data processing and spectral band characteristics for effective use.