Digital Signal Processing Reference
In-Depth Information
MOD09Q1
- MODIS Surface Reflectance 8-Day L3 Global 250m
This file is a composite using eight consecutive daily 250 m images. The “best” observation during
each eight day period, for every cell in the image, is retained. This helps reduce or eliminate clouds
from a scene. The file contains the same spectral information as the daily file listed above, centered at
645 nm and 858 nm. There is one additional band of data for quality control.
MOD09GHK
- MODIS Surface Reflectance Daily L2G Global 500m
This file has a spatial resolution of 500 m and contains seven bands of spectral data plus three bands of
additional information on band quality, orbit and coverage, and number of observations. The spectral
range for each band can be found in Appendix A, bands 1 through 7.
MOD09A1
- MODIS Surface Reflectance 8-Day L3 Global 500m
This file is a composite using eight consecutive daily 500 m images. The “best” observation during
each eight day period, for every cell in the image, is retained. This helps reduce or eliminate clouds
from a scene. The file contains the same seven spectral bands of data as the daily file listed above. It
also has an additional 6 bands of information concerning quality control, solar zenith, view zenith,
relative azimuth, surface reflectance 500 m state flags, and surface reflectance day of year.
MOD09GQK (
Used in this research Study
)
MODIS Terra/Aqua Surface Reflectance Daily L2G Global 250 m
Product description:
MOD09GQK provides MODIS band 1-2 daily surface reflectance at 250 m resolution. The best
observations during a 24-hour period, as determined by overall pixel quality and observational
coverage, are matched geographically according to corresponding 250 m Pointer Files. Quality
information for this product is provided at three different levels of detail: for individual pixels, for
each band and each resolution, and for the whole file.
Science Data Sets for MOD09GQK
Web site:
http://modis-sr.ltdri.org
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