The types and characteristics of man-induced sediment disaster

Many sediment related disasters have occurred in many areas of the world. The table of sediment related disasters from 1997 to 2006 is shown. It shows strong earthquakes and super hurricanes/typhoons cause large landslides and debris flows. Climate change may trigger larger disasters more frequently in the future. Stratovolcanoes are geologically weak and cause huge landslides and debris avalanches. Active volcanoes release lava flows and pyroclastic flows, which cause serious damages. As an example of a typical sediment disaster, a disaster which occurred in Venezuela, in 1999 is briefly reported. The disaster was caused by unusual heavy rainfall. Many people were killed by many debris flows and shallow landslides. The disaster shows information on hazards such as hazard maps and rainfall is necessary and control structures may reduce damages if they had existed. Proper land-use and hazard education are needed.

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Effects of Forest Environmental Factors on the Sediment Disaster Occurrence

Journal of Agriculture & Life Science ◽

10.14397/jals.2014.48.4.73 ◽

2014 ◽

Vol 48 (4) ◽

pp. 73-80 ◽

Cited By ~ 1

Author(s):

Ho-Seop Ma ◽

◽

Won-Seok Kang ◽

Sung-Jae Lee

Keyword(s):

Environmental Factors ◽

Sediment Disaster

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THE STUDY ON VALIDATION OF SEDIMENT DISASTER AT THE TOTSUKAWA RIVER BASIN AND METHOD OF EVACUATION DECISION-MAKING SUPPORT

Journal of Japan Society of Civil Engineers Ser B1 (Hydraulic Engineering) ◽

10.2208/jscejhe.71.i_1255 ◽

2015 ◽

Vol 71 (4) ◽

pp. I_1255-I_1260

Author(s):

Junji TODA ◽

Shigenobu TANAKA ◽

Kenji TANAKA ◽

Toshio HAMAGUCHI

Keyword(s):

Decision Making ◽

River Basin ◽

Sediment Disaster ◽

Decision Making Support

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RADAR-BASED RAINFALL ESTIMATION IN BOYONG RIVER (BO-D5)

Indonesian Journal of Engineering and Science ◽

10.51630/ijes.v3i1.31 ◽

2021 ◽

Vol 3 (1) ◽

pp. 007-019

Author(s):

Henggar Risa Destania ◽

Achmad Syarifudin

Keyword(s):

Soil Layer ◽

Reference Value ◽

Radar Data ◽

Drainage Area ◽

Current Status ◽

Water Index ◽

X Band ◽

Short And Long Term ◽

Sediment Disaster ◽

Maximum Limit

Sediment-related disasters are terrible disasters that can catastrophically impact facilities. People must keep in mind to make sediment-related disaster information that can be predicted from rainfall and response of drainage area by using snakelike. This research produces important indices on precipitation related to debris. It shows the current status of the stage of the response of drainage area against rainfall by using a couple of short- and long-term indices. It shows the water storage volume in the soil layer with the calculation of soil water index (SWI) by using X-band MP (Multi-Parameter) rainfall radar data that has been installed at the top of Merapi Mountain (Merapi Museum). It was confirmed that from June 2018 – June 2019, with 80.28 mm SWI, maximum values do not exceed the standard reference value of SWI (120 – 160 mm) set from JMA. It means that 80.28 mm of SWI value has not yet become the maximum limit of SWI value for lahar occurrence in the Boyong drainage area (BO-D5). The maximum limit of SWI value can be generated if sediment disaster occurrences are available.

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