Sensor web enablement for debris flow monitoring system in taiwan
Sensor Web Enablement forDebris Flow Monitoring Systemin Taiwan Yao-Min (Frank) Fang Geographic Information Systems Research Center Feng Chia University Taiwan OGC Compliance Testing Center www.gis.tw
Sensors in Debris Flow Monitoring Station Geophone Meteorological sensors Solar irradiation sensor Water Level Meter CCD CameraTemperature and Atmospherichumidity sensor pressure sensor Soil water Wire Sensor Wind speeds and content sensor directions sensor
Debris Flow Monitoring Information System – Shenmu Station
Current Debris Flow Monitoring SystemReal –time data is transmitted to ERC at SWCB by advanced communication technology, 3.5G such as satellite, 3.5G, and Internet. Cell phonesRain Gauge Geophone Mobile Station Emergency Response Center Online NoticeMeteorological Wire Sensor Instrument CCD Water Content Radar Water On-Site Station Level Gauge Power Supply Risk Mgmt.
Typhoon MORAKOTShen-Mu Debris FlowMonitoring Station
The Debris Flow Event of AiyuziRiver (8/8 16:57) Aiyuzi River CCD image (front) Aiyuzi River CCD image (side)
The comparison of UAV images before and after the debris flow event at upstream
Estimating of debris flow velocity 50m 50m/3sec=17m/s 10 seconds 173m/10sec=17m/s The comparison of downstream and midstream Underground Sound analysis by Wavelet Transform at Shen-Mu station (8/8 4:36~4:42)
Challenges on Extreme Weather Condition after Typhoon Morakot
Compound Hazards occurred simultaneously:Compound hazards occurred 甲仙鄉小林村災害 at Xiao-lin Village, Jia-xien, (複合型災害) Kaoshiung: Flooding Pre-typhoon Shallow landslide 2008/11 Debris flow Deep landslide Barrier dam Post-Morakot Dam bursting 2009/8
Basin-Wide MonitoringNetwork Transmitting to ERC Upper Stream Portable Units Midstream Mobile Station On call for hazard alert and response Long-term Monitoring On-Site StationStream Down Hazard Alert & Response Time
Basin-Wide Monitoring Network PointLinePlane: extended to upper stream and the source of debris, considering a whole watershed. Combining on-site, mobile station, UAV and portable units. Portable Unit Integrating data from different agencies. Mobile Station 地聲 On-Site 日照輻射計 Station CCD 自動溫濕度 水位計 計 大氣壓力計 土壤含水量 鋼索 風力風向計 土石流觀測站先進量測儀器
Portable Unit R&D Design Conception OGC‐SWE Standard Easy to Basic monitoring Transport functions Flexible on Various Instrument Communication Lightweight Installation Options Plug-and-Play Easy to Operate Power Supply 21
Portable Unit R&D Container and Carrier Design Aluminum-alloy carrier Carry on shoulder orMilitary-standard box drag by hand Full-Function ModelUse cables and nails to 96cm fix the box. CCD box 16cm 10kg Power Units 23cm 20kg 56cm Intermediate Main 63cm 35kg Box Basic & Model 50cm 35cm 22
Portable Unit R&D Rain Touch gauge Screen Control interface Data Geophone Processing Soil Units water moisture Data Power Transmitter Units 23
Receiving StorageRain gauge Soil moisture meter Receiver Computing Communication SWCB Geophone AD Converter Wild Box Module SASCCD Camera Portable NCDR Unit GetObservation() WRA SOS Portable Unit1 SPS MOTC Portable Unit2 CWBCWB SWCB WRA Portable Unit3
Sweet SWE Server Sensor Sweet SWE Sensor Server SensorApplication 2011 Geoinformatics Interoperability Days
Sweet SWE Server Sweet SWE Server SOS Management Task OBSERVE WS SOS SPS Service Storage WNS DB DB Server(c) 2011 Open Geospatial Consortium
SWE implemented in our monitoringinformation service platform Monitoring information service has integrated to debris flow forecasting system.
SWE implemented in monitoring informationservice platform Monitoring information service has integrated to debris flow forecastinghttp://monitor.swcb.gov.tw system. User can click on sensor location and inquire observation data directly.
SWE implemented in monitoring informationservice platform Monitoring information service has integrated to debris flow forecastinghttp://monitor.swcb.gov.tw system. User can click on sensor location and inquire observation data directly. External AP can request observed data published in our service platform Cite observed data External AP
Conclusions Use 3S technique and a complete monitoring and management system to provide complex type of hazards’ real-time data. Integrate information and data from agencies by OGC’s SWE standard. The portable unit includes PAC, battery, communication, CCD camera, geophone, handy rain gauge, soil moisture sensor and Sweet Swe Server. The portable unit had been approved a success on monitoring landslide and providing SWE-standard data to different agencies.