FLOOD FLOW OBSERVATION IN SHIMANTO RIVER GUDO POINT USING UNMANNED BOAT EQUIPPED WITH ADCP

Abstract

In recent years, river flow measurement equipment such as ADCP (Acoustic Doppler Current Profilers) has come down in cost and instrumentation technology has improved. As a result, developments of new flow measurement techniques and data correction methods are actively advancing. We measured the flood flow of Typhoon No. 5 in the Shimanto River at Gudo point in 2007 using an unmanned boat equipped with ADCP. From the measurement results, we report on boat operation in high velocity currents, methods of correcting measured data, and accuracy evaluation methods concerning moving observation using ADCP.