581 
Suits, G.H., Malila, W.A., and Weller, T.M. 
(1988), An Approach for Detecting Post-Launch 
Spectral Changes in Satellite Multispectral 
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Morcrette, J.J., Perbos, J., and Deschamps, P.Y. 
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Techniques de Lille, 59655 Villeneuve d'Ascq 
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Table 1: Input conditions for the 5S runs. 
Terrain elevation: 
Sensor altitude: 
Solar zenith angle: 
Solar azimuth angle: 
Sensor view angle: 
Atmospheric profile: 
Aerosol model: 
Apparent reflectance: 
Spectral bands: 
Aerosol optical depth: 
0.34 km 
4.5 km 
48.198 degrees 
94.232 degrees 
0. degrees 
US62 standard model 
Continental aerosol 
Based on apparent radiance (Table 
See wavelengths below and Figure 
FIFE data set as 
follows : 
ASAS Wavelength 
(Mm) 
Optical 
Depth 
0.678 
0.146 
0.693 
0.142 
0.707 
0.138 
0.722 
0.136 
0.738 
0.133 
0.753 
0.130 
0.767 
0.128 
0.782 
0.125 
0.797 
0.122 
Table 2: 
Results of surface 
reflectance 
retrieval from 
ASAS data. 
The different 
surface reflectance 
retrieval 
cases are described in the 
text. 
ASAS 
Retrieved Surface Reflectance 
Central 
Apparent 
MONO 
5S 
5S 
5S 
Wavelength Radiance 
FRASER 
LAMBDA 
BAND 
BAND 
(Mm) 
(Wm 2 sr*’Mm ’ ) 
ET AL. 
GRID 
(RECT) 
(PROF) 
0.678 
15.085 
0.038 
0.0448 
0.0445 
0.0448 
0.693 
17.448 
0.051 
0.0604 
0.0613 
0.0611 
0.707 
31.443 
0.112 
0.1137 
0.1155 
0.1170 
0.722 
44.242 
0.230 
0.2424 
0.2106 
0.2071 
0.738 
66.061 
0.296 
0.2711 
0.2707 
0.2729 
0.753 
97.525 
0.444 
0.4113 
0.4637 
0.4677 
0.767 
80.391 
0.590 
0.5669 
0.4758 
0.4659 
0.782 
102.850 
0.463 
0.4490 
0.4576 
0.4598 
0.797 
91.569 
0.437 
0.4286 
0.4256 
0.4263