The inventory was conducted mainly on the base of the 1:50000 TM image

composed of band 3

4

5; imageried on 1984. 5. 7

Using "Composition-Enlargement-Correction" image formation method

combined with field survey

the visual interpretation results were transplotted to a 1:50000 topographic map and the area error is only 1.48% （compared with the field survey）. It’s shown

high precise inventory of the lake and wet land in large area by using TM data is feasible.