International MODIS/AIRS Processing Package

 IMAPP Virtual Appliance v1.1 release                  13 May 2011

The IMAPP Virtual Appliance is a complete processing system for MODIS, AIRS, and AMSR-E data acquired by direct broadcast from the Terra and Aqua spacecraft. It is implemented in the form of a VMware virtual machine that is easy to install and run on platforms including

- Microsoft Windows (XP, Vista, 7)
- Intel Linux
- Apple OS X

The minimum requirements to run the IMAPP Virtual Appliance are

(1) VMware Player (a free download for Windows and Linux), or VMware Fusion for OS X,
(2) 1 CPU, 512MB of RAM, and a minimum of 20GB of disk space.

New Features in Version 1.1
  • User-defined processing can now be added easily.
  • MODIS Level 1 processing software updated to MODISL1DB version 1.7. This fixes a persistent problem where vertical stripes of invalid geolocation data are created.
  • MODIS Ocean processing software updated to SeaDAS version 6.2.
  • Linux guest is updated to Ubuntu 10.04 Server LTS (32-bit).
  • The download sites for leapsec.dat and utcpole.dat are now included in the DBVM configuration file, and can be changed easily.
  • Archiving of all products files is now available, with optional HDF4 internal GZIP compression.
  • Windows installer is now a self extracting archive.
  • Multiple bug fixes.
Features of the IMAPP Virtual Appliance
  • Can be installed, configured, and be ready to start processing data within 10 minutes of completing download.
  • Designed to be easy to modify, maintain, and upgrade.
  • Features the latest versions of all available Terra and Aqua DB processing packages including MODISL1DB v1.7, IMAPP MODIS v2.1, and SeaDAS 6.2.
  • Preconfigured with MODIS Level 1 and IMAPP Atmosphere software installed and ready to run.
  • Other DB processing packages can be added (or removed) by editing one configuration file, and then running an installer script.
  • Highly reliable and fault tolerant, and is fast and efficient on modest computer hardware.
  • Supports automated ingest and processing of Level-0 PDS files from a local directory or a remote anonymous FTP site.
  • Implemented entirely in bash scripts (<3000 lines). All bash scripts are extensively commented, and are designed to make it easy to add your own local DB processing software.
  • Based on 10 years of experience with three generations of Terra and Aqua processing systems at SSEC, where more than 25,000 Terra and Aqua passes have been acquired and processed in real time.
  • Uses only freely available software, and is licensed under the terms of the GNU GPL.
Supported Products and Processing Software

MODIS Level 1B Products (created by MODISL1DB from the NASA Ocean Biology Processing Group)
  • Level 0 quicklook images (visible and infrared, in sensor projection) in JPEG format
  • Level 1B 1KM, HKM, and QKM radiances and Geolocation
  • Destriping corrections for MODIS Level 1B 1KM radiances
MODIS Atmosphere Level 2 Products (created by IMAPP from the University of Wisconsin-Madison)
  • Cloud Mask
  • Cloud Top Pressure
  • Cloud Optical Depth and Effective Radius
  • Aerosol Optical Depth
  • Temperature and Water Vapor Profiles
  • Total Column Precipitable Water Vapor (Infrared, Day/Night)
  • Total Column Ozone
  • Total Column Precipitable Water Vapor (Near-Infrared, Day only)
  • Level 2 browse images for all Atmosphere Products
MODIS Land Products (created by Land Algorithms from the NASA Direct Readout Laboratory)
  • Corrected Reflectance 1KM, HKM, QKM
  • Fire Detection
  • Land Surface Temperature (LST)
  • Normalized Difference Vegetation Index (NDVI)
  • Enhanced Vegetation Index (EVI)
  • Land Surface Reflectance
MODIS Ocean Products (created by SeaDAS from the NASA Ocean Biology Processing Group)
  • Chlorophyll-A Concentration
  • Sea Surface Temperature (SST)
MODIS Images (created by HDFLook from Univ. of Lille) in GeoTIFF and JPEG format
  • Level 1B browse images (visible, infrared, true color)
  • Level 2 Land browse images (NDVI, LST)
  • MODIS Level 2 Ocean browse images (Chlorophyll-A, SST)
MODIS Google Earth KML (created by DBGE from the Univ. of Wisconsin-Madison)
  • 250 meter resolution true color JPEG images and KML
AIRS Level 1 and Level 2 (created by AIRS IMAPP from NASA JPL)
  • Level 1B data (including AIRS IR, AIRS VIS, and AMSU)
  • Level 2 retrievals of temperature and moisture
AMSR-E Level 1 and Level 2 (created by AMSR-E IMAPP from Univ. of Wisconsin-Madison)
  • Geolocated and calibrated antenna temperatures
  • Rain rate
  • Soil moisture
  • Snow water equivalent