Spectral Sciences Incorporated

Spectral Sciences Incorporated, commonly known as Spectral Sciences or SSI, is a United States research and development company founded in 1981 and based in Burlington, Massachusetts. It develops scientific concepts, prototype instruments, computational methods, and specialized software for analyzing how light and other electromagnetic radiation interact with the atmosphere, surfaces, materials, and combustion products. The company operates at the intersection of physical science, engineering, and applied computation. Its technical work includes electro-optic remote sensing, atmospheric radiation transport, combustion science, computational physics, chemistry, molecular dynamics, energy management, three-dimensional and spectral scene modeling, spectroscopy, ultraviolet-through-infrared optical-signature analysis, tomography, and electro-optical instrumentation. These capabilities support phenomenological studies, new measurement concepts, and the development of prototype systems rather than a conventional consumer-product portfolio. A central part of SSI's work is translating complex physical phenomena into usable models and measurement tools. Its atmospheric and optical modeling activities are relevant to hyperspectral and multispectral imaging, where atmospheric absorption and scattering must be accounted for before surface properties can be estimated. The company is associated with FLAASH and QUAC, atmospheric-correction codes that calculate spectrally resolved ground reflectance from hyperspectral or multispectral imagery. Both are distributed as the Atmospheric Correction Module plug-in for ENVI, linking SSI's scientific algorithms with a wider remote-sensing software environment. SSI is also associated with MODTRAN, a radiative-transfer code used to model the propagation of electromagnetic radiation through the atmosphere. Radiative-transfer modeling can be applied to the interpretation of sensor observations, the prediction of optical signatures, and the design or evaluation of electro-optical systems. Alongside software, the company's stated capabilities include instrumentation development and experimental methods intended to test or demonstrate new scientific concepts. The company is best understood as a specialist technology and contract-research brand rather than a mass-market software or hardware manufacturer. Its value proposition is domain expertise: combining spectroscopy, atmospheric physics, optical engineering, chemistry, and computational modeling to address technically demanding sensing and measurement problems. Public reference material identifies its base and principal technical areas but provides limited information about ownership, leadership, revenue, customers, or individual project histories.

Spectral Sciences Incorporated was founded in 1981 in the United States and established itself as a research and development organization focused on scientific software, instrumentation, and applied physical science. Its work has centered on problems in which optical radiation, atmospheric effects, chemical processes, and complex computational models must be considered together. Rather than building a broad commercial product catalog, SSI's activities have emphasized the development of concepts and prototypes for scientific and phenomenological studies. Its technical scope spans electro-optic remote sensing, atmospheric radiation transport, combustion, computational physics, chemistry, molecular dynamics, energy management, spectral scene modeling, spectroscopy, optical-signature analysis, tomography, and electro-optical instrumentation. This breadth reflects the company's role as a specialist engineering and scientific partner for technically complex investigations. A notable part of the company's history is its contribution to atmospheric correction and radiative-transfer modeling. FLAASH and QUAC are atmospheric-correction codes designed to derive spectrally resolved ground reflectance from hyperspectral and multispectral imagery. Their availability through the Atmospheric Correction Module plug-in for ENVI helped make these capabilities accessible within a recognized remote-sensing software workflow. SSI is also associated with MODTRAN, a radiative-transfer code used to represent the interaction and transmission of electromagnetic radiation through the atmosphere. Over time, the company's work has connected theoretical modeling with practical measurement. Its stated capabilities include ultraviolet-through-infrared optical-signature analysis, three-dimensional and spectral scene modeling, tomography methods, and the development of electro-optical instruments in support of new measurement concepts. These activities place SSI within the specialist ecosystem serving remote sensing, atmospheric science, defense and aerospace research, combustion analysis, and other applications that require detailed spectral or physical characterization. Publicly available reference material describes SSI as located in Burlington, Massachusetts, and identifies its founding year and technical specialties. It does not provide a detailed chronology of individual contracts, changes in ownership, executive appointments, financial results, or corporate transactions. Accordingly, the documented history is strongest at the level of the company's technical mission and software offerings rather than management or commercial milestones.

• 1981

  Company founded

  [1]Spectral Sciences Incorporateden.wikipedia.org

  Spectral Sciences Incorporated was founded as a United States research and development company focused on scientific software, instrumentation, and applied physical science.

A specialist scientific research and development company that turns expertise in spectroscopy, atmospheric physics, computational modeling, and electro-optical engineering into prototype instruments, analytical methods, and technical software.

• Atmospheric correction software

  FLAASH

  FLAASH is an atmospheric-correction code associated with Spectral Sciences Incorporated. It is used with hyperspectral and multispectral imagery to calculate spectrally resolved ground reflectance while accounting for atmospheric effects. The code is available through the Atmospheric Correction Module plug-in for ENVI, allowing remote-sensing users to apply the method within an established image-analysis environment.

• Atmospheric correction software

  QUAC

  QUAC is an atmospheric-correction code associated with Spectral Sciences Incorporated for processing hyperspectral and multispectral imagery. Its purpose is to estimate spectrally resolved ground reflectance by correcting for atmospheric influence. Like FLAASH, QUAC is distributed as part of the Atmospheric Correction Module plug-in for ENVI, connecting SSI-developed analytical capabilities to practical remote-sensing workflows.

• Atmospheric radiative-transfer modeling

  MODTRAN

  MODTRAN is a radiative-transfer code associated with Spectral Sciences Incorporated. It models the transmission and interaction of electromagnetic radiation through the atmosphere and supports analysis across optical and infrared applications. Such modeling can be used in remote sensing, optical-signature studies, sensor analysis, and other scientific or engineering work requiring a representation of atmospheric radiation transport.

1. 1Spectral Sciences Incorporateden.wikipedia.org