Developed by and for the remote sensing community...

SpectralCalc provides tools for remote sensing research and education, featuring an interactive gas spectrum simulator. Scientists and teachers from all over the world use this to calculate high-resolution spectra of gases or planetary atmospheres in laboratory settings.
Rapid calculations and user customizable settings...

Using the LINEPAK™ radiative transfer algorithms, the simulations are extremely fast and accurate. Spectra can be saved in a user’s online library, and can be easily combined and manipulated with our powerful tools.
More tools included...

SpectralCalc provides many other useful tools including a blackbody simulator, a Sun position calculator, a spectral line atlas, and an extensible collection of model atmospheres.