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Considerations on Acoustic Mapping Velocimetry (AMV) Application for in-situ Measurement of Bedform Dynamics 게시글의 제목, 학술지명, 저자, 발행일, 작성내용을 보여줌
Considerations on Acoustic Mapping Velocimetry (AMV) Application for in-situ Measurement of Bedform Dynamics
학술지명 Frontiers in Water 저자 유호준,Marian,Sandor,김동수
발표일 2021-11-04

Non-intrusive technologies for the in-situ measurement of river morphological features are increasingly popular in the scientific and practice communities due to their efficient and productive data acquisition. While the measurement of suspended load with opticaland acoustic technologies is currently an active area of research, the measurement of bedform dynamics has not experienced similar progress. We have successfully demonstrated through laboratory experiments that, by combining acoustic mapping withimage velocimetry concepts, we can characterize the planar dynamics of the bedform migration. The technique, labeled Acoustic Mapping Velocimetry (AMV), is currently transferred to field conditions using multiple-beam echo-sounders (MBES) for producingacoustic maps. During this transfer, new questions emerged because, in field conditions, many of themorphologic features targeted by AMVmeasurements are not a priori known. Moreover, the image velocimetry processing can be approached with several alternatives,each of them characterized by strength and limitations. This paper assembles guidelines for establishing optimal parameters for the acquisition of the acoustic maps based on analytical considerations, and for selecting essential features of the processing for imagevelocimetry. We test these guidelines using MBES data acquired in the Mississippi River.

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