GOES-8 Sounder Noise Performance Compared with GOES-7 and POES

Wavelength, um   Channel         G8/G7          G8/N12
                                 (with FOV adjustment)

Longwave
14.71              1             1/6            1/1
14.37              2             1/3            1.5/1
14.06              3             1/1.5          1.5/1
13.96              4                            1.5/1
13.37              5             1/2            1.5/1
12.66              6             1/4
12.02              7             

Midwave
11.03              8             1/1            1/1.5
9.71               9                            1/1.5
7.43              10                            1/5
7.02              11             1/12           1/5
6.51              12             1/2

Shortwave
4.57              13                            1/1
4.52              14             1/5            1.5/1
4.45              15             1/6            1.5/1
4.13              16            
3.98              17             1/3            1/1
3.74              18                            1/1

Wavelength, um   Channel         G8/G7          G8/N12
                                 (with FOV adjustment)

GOES-8 Sounder noise comparison with GOES-7 VAS and NOAA-12 HIRS. Ratios of NEDR (Noise Equivalent Radiance) adjusted for field of view (FOV) sizes are shown in the last two columns.