Absorption: off Mie scattering: off

Geometry

Coordinate system is topocentric at TOA (100 km)
Azim = phi(LOS)-phi(sun)
SZA: Solar Zenith angle
R_Earth: Earth radius computed from Latitude assuming r_x, r_y
TH: Tangent Height
LZA: LOS zenith angle

output altitude: 100 km

A) 5 SCIAMACHY observation geometries

        SZA     Azim     R_Earth (! fixed !)

1       77.77   22.23    6370 
2       47.30   34.41    6370
3       28.71   67.56    6370
4       26.84   96.47    6370
5       52.88   142.55   6370

B) Scan of solar zenith angles and rel azimuth

SZA     0 30 60 90
Azim    0 45 90 135 160

TH      LZA             
0       79.9133616
5       80.1693976
10  80.4322137          
15  80.7023848  
20  80.9805720  
25  81.2675412  
30  81.5641889  
35  81.8715745  
40  82.1909661  
45  82.5239023  
50  82.8722809  
55  83.2384886  
60  83.6255974  

Wavelength

325
450
765.1
1700

Albedo: 0.0 (Lambertian)

Pressure and temperature file name

US Standard http://www.iup.uni-bremen.de/~patty/RTM_COMP/PROFILES/US_STANDARD/usstandard.dat

RAYLEIGH parameters (! depol factor > 0 !)

Bodhaine(1999) with Refractive index from [Peck & Reeder, 1972]; weighted King factor includes N2,O2,Ar, and CO2

scattering coefficients

http://www.iup.uni-bremen.de/~patty/RTM_COMP/PROFILES/BODHAINE/ ray_coef*.dat

Format:

• 1st column = grid point [km] (starts at 100 km)
• 2nd column = volume scattering coefficient [1/km]

Output format

A) file name: [model]01_[wavelength]_az[azimuth]_V01.dat, e.g.
model = sciatran
01 = case for atmospheric setting, i.e., Rayleigh SS
wavelength = 324 450 765 1700
azimuth = 22 35 68 96 143
V01: version 01

example: sciatran01_325_az22_V01.dat

Format: 5 lines comment (start with '#')
13 Lines with:
TH [km] I [phot/sr/cm2/nm] per unit irrad. Q/I U/I V/I L_p=sqrt(Q/I^2+U/I^2)

B) file name: [model]01_[wavelength]_z[sza]_azscan_V01.dat, e.g.
sza = 0 30 60 90
rest as above

example: sciatran01_325_z30_azscan_V01.dat

Format: 5 lines comment (start with '#')
13 Lines with:
TH [km] 5x I [phot/sr/cm2/nm] per unit irrad. Q/I U/I V/I L_p=sqrt(Q/I^2+U/I^2)
for azim = 0 45 90 135 160

All SCIATRAN output files are in:
http://www.iup.uni-bremen.de/~patty/RTM_COMP/SCIATRAN/SS-Rayleigh/