Table 2
Spectral characteristics and use of AVHRR sensors

Channel TIROS-N NOAA-6,8,10 NOAA-7,9,11,12,14 NOAA-15,16,17,18,19 Typical use
1 0.550- 0.90 µm 0.580- 0.68 µm 0.580- 0.68 µm 0.50 - 0.68 µm Day time cloud and surface mapping
2 0.725- 1.10 µm 0.725- 1.10 µm 0.725- 1.10 µm 0.725-1.0 µm Land-water boundaries
3A - - - 1.58-1.64 µm Snow and ice detection
3B 3.550- 3.93 µm 3.550- 3.93 µm 3.550- 3.93 µm 3.55-3.93 µm Night cloud mapping, sea surface temperature
4 10.50-11.50 µm 10.50-11.50 µm 10.30-11.30 µm 10.3-11.3 µm Night cloud mapping, sea surface temperature
5 Ch4 rep. Ch4 rep. 11.50-12.50 µm 11.5-12.5 µm Sea surface temperature