MODIS/Aqua Clear Sky Radiance 8-Day Composite Global Data

LAADS provides the MODIS/Aqua Clear Sky Radiance 8-Day Composite Daily L3 Global 25km Equal Area (MYDCSR_8) product. This dataset offers nine statistical composites of clear-sky radiance and reflectance for 36 spectral bands, generated daily from the previous eight days of observations. The data has a global extent at a 25-kilometer resolution and is stored in Hierarchical Data Format (HDF).

Use Cases

• Analyzing trends in clear-sky shortwave and longwave radiation using bands 1-7 and 17-36 statistics.
• Validating atmospheric models with observed minus calculated data for thermal infrared bands (20, 22-25, 27-36).
• Studying land-water observation patterns from the included land vs. water observation counts.
• Investigating diurnal cycles by comparing separately produced day and night radiance statistics.
• Monitoring global atmospheric reflectance and aerosol properties using the composite reflectance data.

Strengths

• Data composites require valid clear-sky observations from at least four of the eight input days, improving reliability.
• Covers 36 spectral bands, providing detailed spectral information across ultraviolet, visible, and infrared wavelengths.
• Offers global spatial coverage at a consistent 25-kilometer equal-area grid resolution.

Limitations

• Specific row counts, file sizes, and detailed column names are not provided by any source.
• Sources disagree on license information, with one listing 'other-license-specified' and another 'None'.
• The dataset's temporal coverage start date is unspecified.

Provenance

Source

LAADS (Level-1 and Atmosphere Archive & Distribution System)

Collection Method

Created from composited MODIS/Aqua Clear Sky Radiance Daily (MYDCSR_D) files, applying statistical aggregation.

Time Range

null

Freshness

2026-03-12 23:52:36.689223

Geography

Global