MonoRTM is a radiative transfer model, designed to process one or
a number of monochromatic wavenumber values. It is particularly useful
in the microwave spectral region. It is also applicable for atmospheric
laser propogation studies.
MonoRTM attributes include:
utilizes the same physics and continuum model as the Line-by-line Radiative
Transfer Model, LBLRTM.
suitable for the calculation of radiances associated with atmospheric absorption by
molecules in all spectral regions and cloud liquid water in the microwave
applicable to a range of viewing geometries
the Monochromatic Optical Depth Model (MODM) module is the core component
of MonoRTM, dedicated to the calculation of the molecular optical depths
- uses the MT_CKD continuum to handle molecular absorption not
included in "line center" of each spectral line [Clough et al., 2005;
Clough et al., 1989]
includes line coupling effects [Hoke et al., 1989], which are important for oxygen lines in
the microwave region [Tretyakov et al., 2005; Caddedu et al., 2007] and for CO2 in
infrared regions [Niro et al., 2005].
uses the Humlicek Voigt Line Shape [J. Humlicek, 1982]
cloud liquid water absorption in the microwave is calculated using a model developed by
the Liebe, Hufford and Manabe 
Atmospheric and Environmental Research