Observed objects


Orbits
 
Meteorological satellite network: as at March 2002 the WMO community can rely on data from four polar orbiting and five geostationary satellites. Image: WMO

Earth's surface
 
On the upper left image, the satellite is placed on an orbit relatively far from the Earth (± 36 000 km). This is why it is possible to see the "whole" planet.

Each square represents one image
 
On this figure, the satellite orbit is much closer to the Earth (± 800 km). Each square (black and red) represents one image. When several images are joined to each other to form a bigger image, scientists talk about a 'mosaic' being created.

West London TM image
 
West London TM image.

West London aerial map
 
West London aerial map.


 
Ozone hole over the South Pole during September 2001 taken by GOME. Image: KNMI, The Netherlands