Acknowledgments This work was supported by IBM Australia Limited from 1979-1983 with expert personnel and specialized and powerful computer systems. The NSW Department of Agriculture remote sensing research has benefited greatly from this valuable assistance. Particular thanks go to Ms A. McRitchie and Messrs N. Reid, D. Beach, B. Winters and P. Bookallil. Also, valuable assistance in the field was given by district agronomists A. Storrie, R. Trounce and J. Kneipp, References BEACH, D. W., and DAWBIN, K. W., 1981, An application of large scale computing facilities to the processing of Landsat digital data in Australia. Proceedings of the Seventh International Symposium on Machine Processing of Remotely Sensed Data, LARS, Purdue University, Indiana, June 1981 (West Lafayette: Purdue Research Foundation), pp,76-79. DAWBIN, K. W., and BEACH, D. W., 1981 a, Crop monitoring in Australia using digital analysis of Landsat data. Proceedings of the Seventh International Symposium on Machine Processing of Remotely Sensed Data. LARS, Purdue University, Indiana, June 1981. (West Layfayctte: Purdue Research Foundation), pp. 146-157. DAWBIN, K. W., and BEACH, D. W., 1981 b, Crop monitoring using Landsat. Proceedingsofthe Second Australasian Landsat Conference-Landsat 81, Canberra, Australia, September 1981 (Canberra: Organizing Committee Landsat 81), pp. 2.5.1-6. DAWBIN, K. W., and EVANS, J. C, 1984, Crop monitoring techniques using Landsat. Proceedings of Third Australasian Landsat Conference-Landsat 84. Surfers Paradise, Australia, May 1984(Brisbane: Organizing Committee Landsat 84, Australia) pp. 33-35. DAWBIN, K. W., EVANS, J. C, DUGGIN, M. J., and LEGGEIT, E. K., 1980,Classification of wheal areas and prediction of yields in north-western New South Wales by repetitive Landsat data. Aust. J. aqric, Res., 31,449-453. IBM, 1977, Earth resources-Management 1I (ER-MAN II). General information manual, IBM GBII-5007. MACDONALD, R. B. (editor), 1979, The LACIE Symposium, Lyndon B.Johnson Space Center, National Aeronautics and Space Administration, [!text type='JS']JS[!/text]C 16015, Vols I and 1I (Houston: NASA);
