Hi ZhangChao,
> > > > Secondly,the HITRAN database has a clearly defined purpose for its use, > > whereas Perrin, which is frequently utilized, has a mixed source,could > > you have a reference for this? > > For AMSU and to get started, it is easier to use some of the predined > absorption models for O2, N2 and H2O, by e.g. Rosenkranz. > > The Perrin catalogue is targeted at microwave applications in (general) planetary atmospheres. The reference for this data is the ARTS 2.2 paper ( https://doi.org/10.5194/gmd-11-1537-2018) with details given in the therein referenced technical report (Mendrok & Eriksson, 2014). However, as Patrick pointed out, for applications in Earth atmosphere full absorption models like the Rosenkranz or Liebe models (in contrast to line-by-line calculations) are most of the time the more suitable (and easier to apply) choice. Best, -- Jana Mendrok, Ph.D. Deutscher Wetterdienst Offenbach am Main, Germany +49 (0)69 8062 3139
