1. Japan-Korea Technical Conference on Sediment-Related Disaster Prevention

On October 19, 2006, the 5th Japan-Korea Technical Conference on Sediment-Related Disaster Prevention between Sabo (Erosion and Sediment Control) Div., Ministry of Land, Infrastructure and Transport, Japan and Korea Forest Service was held in Seoul Metropolitan City, the Republic of Korea.

<<Presentation>>

1. Overview of sediment disaster prevention policy in Japan: Yasuo Nakano (Director of Sabo Planning Div., Sabo Dept., Ministry of Land, Infrastructure and Transport)
2. Characteristics of mudflow and driftwood damages upon the localized heavy rain in July 2006: Kun-Woo CHUN(Professor, KANGWON National University)
3. Sediment disasters and post-disaster restoration in 2006: Takashi Tamura (Deputy Director, Land Conservation Div., Sabo Dept., Ministry of Land, Infrastructure and Transport)
4. Analysis of characteristics of disasters in mountain areas using aerial photos: Ho-Joong Youn (Forest Conservation Div., Korea Forest Science Institute)
5. Easy-to-understand and effective sediment disaster information: Nobutomo Osanai (Head, Erosion and Sediment Control Div., Research Center for Disaster Risk Management, National Institute for Land and Infrastructure Management, MLIT)
6. Landslide disaster forecast using engineering technology: Sang-Jun Lim (Professor, Seoul National University)
7. Use of laser profiler in the Sabo field: Yuji Yasuda (Deputy Director, SABO Technical Center)

2. Site Inspection

<<Sediment Disaster due to Localized Heavy Rain in July 2006>>

Owing to continual rain and typhoon from early to mid July, landslides and mudflows occurred in Inje county and Pyongchang county in Kangwon-do, causing a great amount of damage to the downstream area. In Pyongchang county, when it suffered the heavy rain in July, the precipitation reached 793mm and the maximum hourly precipitation was 82mm (during 5 days from July 11 to July 15), whereas its annual average precipitation is 1,200 to 1,500mm.

State of sediment discharge at the midstream of Buk-Hangye