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An unsupervised maximum likelihood classification of Landsat Thematic Mapper imagery is used to provide the basis for a thematic map of broad habitat types, over an area of complex semi-natural vegetation. The study shows that the cover categories to be mapped must be selected so that they have some spectral homogeneity in addition to ecological significance. The use of photographic prints of satellite imagery in the field is found to be invaluable in this respect. Where cover categories are selected on the basis of ecological divisions alone results are shown to be poor.

Additional information

Authors: BELWARD A S, JRC Ispra Estab. (IT);TAYLOR J C, JRC Ispra Estab. (IT);STUTTARD M J, Silsoe College, Bedford (GB);BIGNAL E, Silsoe College, Bedford (GB);MATHEWS J, Nature Conservancy Council, Peterborough, PE1 1UA (GB);CURTIS D, Paisley College, Paisley (GB)
Bibliographic Reference: Paper presented: 1988 International Geoscience and Remote Sensing Symposium (IGARSS '88), Edinburgh (GB) Sept. 13-16, 1988
Availability: Available from (1) as Paper EN 34184 ORA
Record Number: 198910319 / Last updated on: 1994-12-01
Original language: en
Available languages: en