How does MODIS improve upon other optical sensors?
MODIS provides global coverage every one to two days in 36 spectral bands. Spatial resolution of the MODIS data varies by band from 250 m to 1000 m. By contrast, the Advanced Very High Resolution Radiometer (AVHRR) sensor has five spectral bands with a spatial resolution of 4 km or 1 km. MODIS data helps scientists understand the Earth as a system, facilitating their ability to predict global climate changes and to differentiate between the impact of human and natural activities on the environment.
