Ash plumes on Kamchatka Peninsula, eastern Russia

Hurricane Katrina near Florida peninsula

MODIS (Moderate-resolution Imaging Spectroradiometer) is a payload scientific instrument launched into Earth orbit by NASA in 1999 on board the Terra (EOS AM) Satellite, and in 2002 on board the Aqua (EOS PM) satellite. The instruments capture data in 36 spectral bands ranging in wavelength from 0.4 µm to 14.4 µm and at varying spatial resolutions (2 bands at 250 m, 5 bands at 500 m and 29 bands at 1 km). Together the instruments image the entire Earth every 1 to 2 days. They are designed to provide measurements in large-scale global dynamics including changes in Earth's cloud cover, radiation budget and processes occurring in the oceans, on land, and in the lower atmosphere.

Solar irradiance spectrum and MODIS bands.

MODIS Bands

See also

• NASA World Wind
• Imaging spectroscopy

External links

• Official NASA site
• MODIS Images of the Day
• MODIS Images of the Day as Google gadget
• Visible Earth: Latest MODIS images
• MODIS Rapid Response system (Near Real Time images)
• NASA OnEarth (Web service for MODIS imagery)
• Flash Earth (Daily MODIS Terra images available in a zoomable Flash interface)
• MODIS Land Product Subsetting Tool for North America from Oak Ridge National Laboratory
• MODIS bands and spectral ranges