4AOP main characteristics:
Items | 2016 Version |
2009 Version | 2006 Version |
Spectroscopic database | GEISA 2015 | GEISA 2009 | GEISA 2003 |
H2O continuum | MT CKD 3.2 | Clough et al., 1989 | Clough et al., 1989 |
N2 continuum | Lafferty et al, 1996
N2/H2O broadening (Hartmann et al 2018) |
Lafferty et al, 1996 | Lafferty et al, 1996 |
O2 continuum | Thibault et al,1997 | Thibault et al,1997 | Thibault et al,1997 |
Partition Function | Gamache et al., 2000 | Gamache et al., 2000 | Gamache et al., 2000 |
Line coupling | CO2 Lamouroux et al, 2012
CH4
|
CO2 Niro et al, 2004 | CO2 Rodrigues et al, 1998 |
χ correction of Voigt profiles | No | Perrin et al, 1989 | Perrin et al, 1989 |
pressure shift for H2O | yes | yes | no |
Spectral dependence of the surface emissivity | yes | yes | no |
Simulation of Scattering effects of aerosols | yes, based on
|
yes, based on
|
no |
Implementation of the limb viewing geometry | yes | no | |
Number of nominal layers / Top of the atmosphere | 43 / 0.0026 hPa | 43 / 0.0026 hPa | 40 / 0.05 hPa |
Adjustment of gas concentration profiles in the Atlas computations | yes | yes | N.R. |