Computer Mapping of Flooded Areas Detected from Landsat TM data

概要

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Flooded areas in the middle basin of Sakura river and Kokai river, Ibaraki Prefecture, caused by the heavy rain affected typhoon No. 8610, were classified by the supervised method using Landsat TM data taken on August 6, 1986.<BR>Outcome of the classification was directly plotted into the topographical map from the standpoint of practical use using the general-purpose plotter with 8 color-pens.<BR>In disaster survey it is always essential to compare the result with ready-made topographic map in some way.<BR>It was found that slight inclination of the ground surface could be interpreted from the plotted map of classified flooded areas.<BR>The plotted map was put to practical use and evaluated high against aerial photos by the local self-governing body.
社団法人日本リモートセンシング学会の論文