Wavelength, um Channel NEDT Purpose (wavenumber, 1/cm)
Longwave 14.71(680) 1 1.02 Stratosphere temperature 14.37(696) 2 0.87 Tropopause temperature 14.06(711) 3 0.60 Upper-level temperature 13.96(733) 4 0.40 Midlevel temperature 13.37(748) 5 0.45 Low-level temperature Window 12.66(790) 6 0.20 Total PW 12.02(832) 7 0.13 Surface temp., moisture 11.03(907) 8 0.10 Surface temperature Ozone 9.71(1030) 9 0.14 Total ozone Water vapor 7.43(1345) 10 0.11 Low-level moisture 7.02(1425) 11 0.13 Midlevel moisture 6.51(1535) 12 0.21 Upper-level moisture Shortwave 4.57(2188) 13 0.13 Low-level temperature 4.52(2210) 14 0.13 Midlevel temperature 4.45(2245) 15 0.16 Upper-level temperature Nitrogen 4.13(2420) 16 0.10 Boundary-layer temperature Window 3.98(2513) 17 0.17 Surface temperature 3.74(2671) 18 0.10 Surface temp., moisture Visible 0.94(14367) Cloud
Wavelength, um Channel NEDT Purpose (wavenumber, 1/cm)
Table 2. Sounder radiometer spectral channels and in-flight measured noise equivalent temperature (NEDT) at 290 K. The final column indicates the primary purpose of the band.