The Availability of Landsat TM images of Great Britain

Abstract
The loss of Landsat 6, at launch, and the ageing sensors on board Landsats 4 and 5, enhance the value of existing TM images. This letter shows that 88 per cent of Britain was imaged as cloud-free scenes or quarter scenes, in both the summer and winter of 1988-1990 and 97.5 per cent was imaged on at least one date. Acquisitions in 1991-1993 have been few.