International MODIS/AIRS Processing Package

The Direct Broadcast capability of the NASA Terra and Aqua spacecraft provide new remote sensing capabilities for the observation of planet Earth. Both of these platforms have a direct broadcast X-band downlink that allows MODIS (Terra and Aqua) and AIRS/AMSU/HSB and AMSR-E (Aqua) data to be received in real time by sites having the proper reception hardware.

The International MODIS/AIRS Processing Package (IMAPP) allows ground stations capable of receiving EOS direct broadcast to create the following products:

• MODIS Level 2 geophysical products (Terra and Aqua)
  • MODIS cloud mask (MOD35)
  • MODIS cloud top properties (MOD06CT)
  • MODIS atmospheric profiles, precipitable water and stability indices (MOD07)
  • MODIS aerosol product (MOD04)
  • MODIS Sea Surface Temperatures (IMAPP product)
  • MODIS Near Infrared Water Vapor product (IMAPP product)
• AIRS/AMSU/HSB Level 1 calibrated and geolocated radiances (Aqua)
• AIRS/AMSU/HSB Level 2
  • JPL DAAC Product
  • Single Field-of-View Product (IMAPP product)
• AMSR-E Level 1 calibrated and geolocation radiances (Aqua)
• AMSR-E Level 2 geophysical products (Aqua)
• AMSR-E Rain Rate
• AMSR-E Soil Moisture
• AMSR-E Snow Water Equivalent

IMAPP is derived from the operational EOS processing software developed at NASA GSFC and JPL, and has been modified to be compatible with direct broadcast data. The main differences between IMAPP and the operational software are

• portability,
• wherever possible, the reliance on toolkits has been eliminated,
• the IMAPP processing environment is greatly simplified,
• overpasses of arbitrary size may be processed.