AVHRR/3 Channel Characteristics

Channel Number

Resolution at Nadir

Wavelength (μm)

Typical Use

1

1.09 km

0.58 - 0.68

Daytime cloud and surface mapping

2

1.09 km

0.725 - 1.000

Land-water boundaries

3A

1.09 km

1.58 - 1.64

Snow and ice detection

3B

1.09 km

3.55 - 3.93

Night cloud mapping, sea surface temperature

4

1.09 km

10.3 - 11.3

Night cloud mapping, sea surface temperature

5

1.09 km

11.5 - 12.5

Sea surface temperature