Imagery from the Metop Satellites

The European Metop satellites image the Earth using the AVHRR3, a six channel scanning radiometer that views the Earth in visible light and infrared (IR). Only five of these channels are active at any one time however, as channels 3A and 3B alternate by day and night. The frequencies are shown in the table below.

Channel Wavelength (micrometre) Uses
1 0.580-0.680 m Daytime cloud and surface mapping
2 0.725-1.000 m Displaying Landwater boundaries
3A 1.580-1.640 m Snow and ice detection
3B 3.550-3.930 m Night cloud mapping, sea surface temperature
4 10.300-11.300 m Night cloud mapping, sea surface temperature
5 11.500-12.500 m Sea surface temperature

Following are examples of Metop imagery, displaying thumbnails of channels 1 to 4: channel 5 appears almost identical to channel 4, and is not shown. Also displayed is a false-colour composite image, created by combining data from channels 2 and 4. The colour depends on both the intensity of sunlight (channel 2) and the temperatures of cloud, water and land. Consequently, Summer images display more intense colour characteristics compared with images from Spring and Autumn.

Clicking on any of the small images will display it full size

Metop A Data EUMETSAT


Southbound Metop-A pass at 13.01 UT on March 8, 2010

Channel 1 Channel-2
Channel 3 Channel-4 Channels 2+4 colour composite

Southbound Metop-A pass at 09.59 UT on August 10, 2012

Channel 1 Channel-2
Channel 3 Channel-4 Channels 2+4 colour composite

Southbound Metop-A pass at 17.25 UT on August 26, 2009

Channel 1 Channel-2
Channel 3 Channel-4 Channels 2+4 colour composite
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