XDS: MTI
mti: Multispectral Thermal Imager
The Multispectral Thermal Imager is a space-based research and development project sponsored by the U.S. Department of Energy (DOE), Office of Nonproliferation and National Security. MTI’s primary objective is to demonstrate advanced multispectral and thermal imaging, image processing, and associated technologies that could be used in future systems for detecting and characterizing facilities producing weapons of mass destruction. However, ARM and the MTI have an arrangement that allows ARM to receive MTI images.
The MTI system consists of a single satellite in polar, 360-mile-high orbit carrying an advanced multispectral and thermal imaging sensor. MTI’s 15 spectral bands are selected to collect data needed to derive a broad range of information on facilities and activities, including surface temperatures, materials, water quality, and vegetation health. To enhance accuracy, additional bands provide simultaneous information on atmospheric water vapor, aerosol content, and sub-visual cloud presence.
ARM’s agreement with the MTI Project places the following restrictions on data access:
Only U.S. citizens may have access to unpublished MTI data.
Users of these data must comply with required Laboratory review of resulting publications for technical content and national security issues, proior to submission. Publications include reports, manuscripts, submissions to conferences and WWW pages intended to be accessible to individuals outside the proposer’s team. This process typically takes about a week. Publications produced with SNL collaborators must be cleared through SNL, publications produced with LANL collaborators must be cleared through LANL, and publications not involving either SNL or LANL must be cleared through at least one of the Laboratories.
Users of these data must acknowledge the United States Department of Energy – Office of Nonproliferation and National Security as the MTI sponsor in all publications utlizing MTI data. (Principal DOE laboratories are Sandia National Laboratories, Los Alamos National Laboratory, and Savannah River Technology Center).
Measurement Description
MTI Product Description
]]> MTI Data Information
What’s included:
Level1b
This file contains the separate images for each sensor chip assembly (SCA). The pixel size is the native pixel GSD (Ground Sampling Distance). This is approximately 5 meters in the visible and 20 meters in the infrared.
The level1b is a Hierarchical Data Format (HDF) file with the following data sets:
visImage_SCA1, visImage_SCA2, visImage_SCA3 – each of these is a three dimensional array containing the visible image for bands A, B, C, D in averaged spectral radiance in units of W m^-2 sr^-1 um^-1 (um=micrometer).
irImage_SCA1, irImage_SCA2, irImage_SCA3 – each of these is a three dimensional array containing the infrared image for bands E, F, G, H1, H2, I, O, J, K, L, M, N in averaged spectral radiance in units of W m^-2 sr^-1 um^-1 (um=micrometer). In the case of a night image, only the last five bands are populated.
visQuality_SCA1, visQuality_SCA2, visQuality_SCA3 – each of these is a three-dimensional array containing a quality metric image for each band in the visible image.
irQuality_SCA1, irQuality_SCA2, irQuality_SCA3 – each of these is a three-dimensional array containing a quality metric image for each band in the infrared image.
btemp_SCA1, btemp_SCA2, btemp_SCA3 – each of these is a three-dimensional array containing the brightness temperature image for each band in the infrared image. The units are degrees Kelvin assuming an emissivity of 1.
Additional data in this file includes image name, target name, date, times and detector parameters.
Level1R
This file contains the full image cube registered band-to-band without spatial interpolation. The level1R is a Hierarchical Data Format (HDF) file with the following data sets:
Image_cube – this is a three dimensional array containing the visible and infrared image for bands A,B,C,D, E, F, G, I, O, J, K, L, M, N in averaged spectral radiance in units of W m^-2 sr^-1 um^-1 (um=micrometer). For image collected at night, bands included are J, K, L, M, and N.
NOTE: This image cube is registered at the visible resolution. Infrared pixels are resized to the visible resolution by pixel replication. No interpolation or smoothing has been performed.
Level1RQL
Quick look jpeg images are provided for true color (CBA) color infrared (DCB) and false color in frared (NML). For night images only the false color infrared is produced.
MetaData
This is a text file containing satellite collection and geometry parameters that are useful for analysis.
Temporal Coverage
Data are available at irregular intervals beginning in June 2000 until 2003-01-04
Area Covered
Currently, data are available at the ARM Archive covering the NSA, and the SGP Central Facility and Extended Facilities.
Datastream Inputs
None
Data Source
Institution
Multispectral Thermal Imager Project of Los Alamos National Laboratory, Savannah River Technology Center and Sandia National Laboratory
Quicklook Links
Acronyms
MTI Multispectral Thermal Imager NSA North Slope of Alaska SGP Southern Great Plains
Citable References
MTI References