am is a tool for radiative transfer computations at microwave to submillimeter
wavelengths. Spectra which can be computed with am include thermal emission,
absorption, transmission, and excess delay. The program can modify computed spectra
to model the response of spectrometers and receiving systems. Measured spectra can
be fitted using a simple scheme for flagging model parameters as fit variables.
The primary application area for am is in radio astronomy, involving terrestrial
propagation paths between ground and sky. The program can also be applied to a variety
of other radiative transfer problems, and has been used for applications ranging
from laboratory receiver testing to radio spectrum management.
Download the latest version (am 8.0).
SMA memo #152 is the manual for am.
Browse the am cookbook for examples of am configuration files.