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Comparative Analysis of Day and Night Time Video Accuracy to Calculate the Flood Runoff Using Surface Image Velocimeter (SIV)
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 Title & Authors
Comparative Analysis of Day and Night Time Video Accuracy to Calculate the Flood Runoff Using Surface Image Velocimeter (SIV)
Kim, Yong-Seok; Yang, Sung-Kee; Yu, Kwonkyu; Kim, Dong-Su;
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 Abstract
This study analyzed the velocimetry of runoff and measured the flood discharge by applying the SIV (Surface Image Velocimetrer) to the daytime and nighttime flow image data with special reference to Seong-eup Bridge at Cheonmi stream of Jeju during the flow by the severe rainstorm on May 27, 2013. A 1000W lighting apparatus with more than 150 lux was installed in order to collect proper nighttime flow image applied to the SIV. Its value was compared and analyzed with the velocity value of the fixed electromagnetic wave surface velocimetry (Kalesto) at the same point to check the accuracy and applicability of the measured velocity of flow. As a result, determination coefficient values were 0.891 and 0.848 respectively in line with the velocity distribution of the daytime and nighttime image and the flow volume measured with Kalesto was approximately 18.2% larger than the value measured with the SIV.
 Keywords
Surface Image Velocimetry;CCTV;Kalesto;Doppler radar;Surface velocity;
 Language
Korean
 Cited by
1.
주야간 겸용 표면영상유속계 개발을 위한 원적외선 카메라의 적용성 검토,류권규;김서준;유병남;배인혁;

한국수자원학회논문집, 2015. vol.48. 8, pp.659-672 crossref(new window)
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