International MODIS/AIRS Processing Package

The International MODIS/AIRS Processing Package (IMAPP) allows ground stations capable of receiving direct broadcast data from the NASA Terra and Aqua spacecraft to create a suite of products from MODIS, AIRS, AMSU, and AMSR-E. The IMAPP software is freely available, and is supported on Intel Linux host platforms.

2021 Update: The IMAPP project has received funding to update core functionalities. This will include an updated Direct Broadcast Virtual Machine (DBVM). Some packages will no longer be supported. These updates will take place January 2021 through June 2021.

MODIS products (Terra and Aqua)

Atmosphere and Polar Products

  • Cloud mask
  • Cloud top pressure and temperature
  • Cloud effective radius and cloud optical thickness
  • Temperature and moisture profiles
  • Total precipitable water
  • Stability indices
  • Aerosol optical depth (3km and 10km)
  • Ice Surface Temperature
  • Snow Mask
  • Ice Cover and Ice Concentration
  • Inversion Strength and Inversion Depth

Learn more ...

Land Products

Image Products

AIRS and AMSU Products (Aqua)

Sensor Products

  • Calibrated and geolocated radiances and reflectances (AIRS)
  • Calibrated and geolocated antenna temperatures (AMSU)

    Learn more ...

Atmosphere Products

  • JPL Temperature and moisture profiles (3x3 AIRS FOV) Learn more ...
  • UW Temperature and moisture profiles (single FOV AIRS, CrIS and/or IASI dual regression technique) Learn more ...
  • Collocated AIRS/MODIS temperature and moisture profiles (single AIRS FOV; clear and cloudy sky) Learn more ...


HYDRA2 Multispectral Data Analysis Toolkit

HYDRA2 is a visualization and analysis toolkit for interrogating NASA EOS Aqua and Terra and JPSS S-NPP instrument data. This toolkit was developed to assist research and development of remote sensing applications as well as education and training of remote sensing scientists. Supported platforms include:

  • Microsoft Windows
  • Apple OS X
  • Intel Linux

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Aviation/Severe Weather Forecast Products

  • The IMAPP Overshooting Tops (OT) software package identifies regions of MODIS data that contain convective cloud tops that have broken through the tropopause into the lower stratosphere because of a strong updraft. Convective storms with OTs have the potential to produce severe weather at the ground (heavy rain, damaging winds, hail and tornadoes) as well as aviation hazards including lightning and turbulence.
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  • The IMAPP MODIS Aerosol Visibility and Fog/Low Stratus software package attempts to provide hazard information relevant to aviation interests and other forms of transportation by retrieving obstructions to surface visibility due solely to atmospheric aerosols at 10 km resolution and by retrievals estimating the probability of Instrument Flight Rules (MVFR, IFR and LIFR) for a given MODIS 1km Field-of-View (FOV).
  • Learn more ...

Air Quality Forecast Products

  • The Infusing Satellite Data Into Environmental Applications - International (IDEA-I) software utilizes the MODIS Aerosol Product (MOD04) and/or VIIRS Aerosol EDR to identify regions of elevated air pollution, then runs a trajectory model to forecast the vertical and horizontal movement of the aerosols in the next 48 hours.
  • Learn more ...

  • A second version of the IDEA-I software identifies regions of high ozone concentrations in the upper atmosphere using the single FOV AIRS, CrIS and IASI dual regression retrievals. The trajectory model forecasts the vertical and horizontal movement of the ozone, identifying potential regions of stratospheric ozone intrusions.
  • Learn more ...

Virtual Appliance

The IMAPP Virtual Appliance is an automated processing system for MODIS, AIRS and AMSU data and products acquired by direct broadcast. It is easy to install and run on platforms including:

  • Microsoft Windows (10, 7, Vista, XP)
  • Apple OS X (10.6 or higher)
  • Intel Linux 2.6 Kernal or higher

Learn more ...

What's New