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Suriname - Living with the floods

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Presentation of multidisciplinary project in Suriname, as part of M.Sc. study Civil Engineering - Water Resources Managment at Delft University of Technology. The project was set up after large floods ...

Presentation of multidisciplinary project in Suriname, as part of M.Sc. study Civil Engineering - Water Resources Managment at Delft University of Technology. The project was set up after large floods in the inlands of Suriname in May 2006.

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    Suriname - Living with the floods Suriname - Living with the floods Presentation Transcript

    • Living with the floods Initiation of a warning system in the inlands of Surinam Project team Surinam Ir. Glenn Weisz Jr. Raheena Doekhie Priscilla Miranda Ton Knol Marloes van Ginkel Marjolein van der Kraan Ivo Miltenburg 1
    • Sponsor Duinwaterbedrijf Zuid-Holland Living with the floods 2 Project team Surinam
    • Introduction Cause Project team Surinam Introduction ‘Living with the floods’ Organization Cause Inlands of Surinam Project locations Participation Flooding inlands of Surinam Drinking water May 2006 Introduction Mercury issues Drinking water sources Drinking water systems Flooded area Warning system Introduction Awareness Data allocation Simple Warning system Communication Evacuation plan Introduction Progressive scheme safe area Safe areas Conclusion Flooded villages Recommendations Living with the floods 3 Project team Surinam
    • Introduction Cause Project team Surinam Introduction ‘Living with the floods’ Organization Cause Inlands of Surinam Project locations Participation Flooding inlands of Surinam Drinking water May 2006 Introduction Mercury issues Drinking water sources Drinking water systems Eroded riverbanks Eroded riverbanks Warning system Introduction Awareness Data allocation Simple Warning system Communication Evacuation plan Introduction Uprooted trees Uprooted trees Progressive scheme safe area Safe areas • 22,000 victims Conclusion Recommendations • major damage to buildings/arable land Flooded schools Flooded schools Living with the floods 4 Project team Surinam
    • Introduction Cause Project team Surinam Introduction ‘Living with the floods’ Organization Project team Surinam Inlands of Surinam Project locations Participation Drinking water Introduction Team Mercury issues Drinking water sources members Drinking water systems Warning system Introduction Ton Ton Raheena Raheena Marjolein Marjolein Awareness Data allocation Simple Warning system Communication Evacuation plan Introduction Progressive scheme safe area Safe areas Conclusion Recommendations Glenn Glenn Priscilla Priscilla Marloes Marloes Ivo Ivo Living with the floods 5 Project team Surinam
    • Introduction Cause Project team Surinam Introduction ‘Living with the floods’ Organization ‘Living with the floods’ Inlands of Surinam Project locations Participation Project goals: Drinking water Introduction • Drinking water Mercury issues Drinking water sources • Warning system Drinking water systems • Evacuation plan Warning system Introduction Awareness Data allocation Simple Warning system Communication Evacuation plan Introduction Progressive scheme safe area Safe areas Conclusion Recommendations Living with the floods 6 Project team Surinam
    • Introduction Cause Project team Surinam Introduction ‘Living with the floods’ Organization Organization Inlands of Surinam Project locations Participation • group 1: evacuation, drinking water, communication Drinking water • group 2: warning system, communication Introduction Mercury issues Drinking water sources Drinking water systems Warning system Introduction Awareness Data allocation Simple Warning system Communication Evacuation plan Introduction Progressive scheme safe area Group 1 Group 1 Group 2 Group 2 Safe areas Conclusion Recommendations Living with the floods 7 Project team Surinam
    • Introduction Cause Project team Surinam Introduction ‘Living with the floods’ Organization Organization Inlands of Surinam Project locations Participation Making contact and setting up cooperation Drinking water Introduction Mercury issues Drinking water sources • BIO – cooperating NGO’s in Surinam Drinking water systems Warning system • ADEK – University of Paramaribo Introduction Awareness Data allocation Simple Warning system • Participation of Surinam students Communication Evacuation plan Introduction Progressive scheme safe area Safe areas Conclusion Recommendations Living with the floods 8 Project team Surinam
    • Introduction Cause Project team Surinam Inlands of Surinam ‘Living with the floods’ Organization Project locations Inlands of Surinam Project locations Participation Four village-clusters at PARAMARIBO Boven-Suriname river Paramaribo Drinking water Introduction Mercury issues Drinking water sources • Kayana Drinking water systems • Djoemoe Warning system • Botopasi Introduction Laduani Awareness • Laduani Botopasi Data allocation Djoemoe Simple Warning system Kayana Communication Evacuation plan Introduction Progressive scheme safe area Safe areas Conclusion Recommendations Living with the floods 9 Project team Surinam
    • Introduction Cause Project team Surinam Inlands of Surinam ‘Living with the floods’ Organization Participation Inlands of Surinam Project locations Participation Social hierarchy is very important Drinking water • Granman Introduction Mercury issues • Village board (captain and basja’s) Drinking water sources • Krutu (village meeting) Drinking water systems Warning system Contact with villagers Introduction Awareness • Acceptance of the project Data allocation Simple Warning system • Sharing knowledge Communication • Working together Evacuation plan • Discussing solutions Introduction Progressive scheme • Involving schoolchildren safe area Safe areas Conclusion Recommendations Living with the floods 10 Project team Surinam
    • Introduction Cause Project team Surinam Drinking water ‘Living with the floods’ Organization Introduction Inlands of Surinam Project locations Participation Drinking water Introduction Goals: Mercury issues Drinking water sources Drinking water systems • Analyzing drinking water sources Warning system • Introducing small-scale, simple and robust drinking water Introduction Awareness systems Data allocation Simple Warning system • Assessment of central drinking water system (Djoemoe) Communication Evacuation plan Introduction Progressive scheme safe area Safe areas Conclusion Recommendations Living with the floods 11 Project team Surinam
    • Introduction Cause Project team Surinam Drinking water ‘Living with the floods’ Organization Mercury issues Inlands of Surinam Project locations Participation Drinking water • Maximum mercury concentration of 0.29 ug/l meets WHO Introduction standard for drinking water of < 1.0 ug/l. Mercury issues Drinking water sources Drinking water systems • Exceeds the target value for eco systems of 0.03 ug/l. Warning system Introduction Awareness Data allocation Simple Warning system Communication Evacuation plan Introduction Progressive scheme safe area Safe areas Conclusion Recommendations Living with the floods 12 Project team Surinam
    • Introduction Cause Project team Surinam Drinking water ‘Living with the floods’ Organization Drinking water sources Inlands of Surinam Project locations Participation Drinking water River water Creek water Rain water (storage) Introduction Mercury issues Drinking water sources Drinking water systems Warning system Introduction Awareness Data allocation Simple Warning system Communication Evacuation plan Introduction Progressive scheme safe area Safe areas Conclusion Recommendations Living with the floods 13 Project team Surinam
    • Introduction Cause Project team Surinam Drinking water ‘Living with the floods’ Organization Drinking water sources Inlands of Surinam Water quality Project locations Participation • E.Coli Drinking water Introduction • Total coli form Mercury issues Drinking water sources Drinking water systems River water Creek water Rain water (storage) Warning system Introduction Awareness Data allocation Simple Warning system Communication Evacuation plan Introduction Progressive scheme safe area Safe areas Conclusion Recommendations Living with the floods 14 Project team Surinam
    • Introduction Cause Project team Surinam Drinking water ‘Living with the floods’ Organization Drinking water systems Inlands of Surinam Project locations Participation • Removal of pathogene Drinking water organisms Introduction Mercury issues Drinking water sources Drinking water systems • Ease in use SODIS system Warning system Introduction Awareness Data allocation Simple Warning system Communication Evacuation plan Introduction Progressive scheme safe area Safe areas Conclusion Katadyn Pocket Recommendations Clay pot Katadyn Combi Living with the floods 15 Project team Surinam
    • Introduction Cause Project team Surinam Drinking water ‘Living with the floods’ Organization Drinking water systems Inlands of Surinam Project locations Participation Removal of (most) of pathogene organisms Drinking water • confirmed with all systems Introduction Mercury issues Drinking water sources Drinking water systems Warning system Introduction Awareness Data allocation Simple Warning system Communication Evacuation plan Introduction Progressive scheme safe area Safe areas Conclusion SODIS exposure time of 24 hours on a sink roof: Recommendations • most effective method Living with the floods 16 Project team Surinam
    • Introduction Cause Project team Surinam Drinking water ‘Living with the floods’ Organization Drinking water systems Inlands of Surinam Project locations Participation Ease in use Drinking water Feedback villagers: Introduction Mercury issues Drinking water sources Drinking water systems Warning system Introduction Awareness Data allocation Simple Warning system Communication Evacuation plan Introduction Progressive scheme safe area Safe areas Conclusion Recommendations Katadyn Combi Living with the floods 17 Project team Surinam
    • Introduction Cause Project team Surinam Drinking water ‘Living with the floods’ Organization Drinking water systems Inlands of Surinam Project locations Participation Advise : SODIS system Drinking water Introduction Mercury issues Drinking water sources Drinking water systems Warning system Introduction Awareness Data allocation Simple Warning system Communication Evacuation plan Introduction Progressive scheme safe area Safe areas until all inhabitants have access to central drinking Conclusion water systems or rain water storages……….. Recommendations Living with the floods 18 Project team Surinam
    • Introduction Cause Project team Surinam Warning system ‘Living with the floods’ Organization Introduction Inlands of Surinam Project locations Participation Challenges: Drinking water • Isolated area Introduction • Lack of warning system Mercury issues Drinking water sources • No flood protection possible Drinking water systems • Limited data available Warning system • Expecting more floods in future Introduction Awareness Data allocation Simple Warning system Goals: Communication • Raising awareness Evacuation plan • Start data allocation Introduction Progressive scheme • Initiation of a warning system safe area Safe areas • Communication Conclusion Recommendations Living with the floods 19 Project team Surinam
    • Introduction Cause Project team Surinam Warning system ‘Living with the floods’ Organization Awareness Inlands of Surinam Project locations Participation Important for future Drinking water safety and continuity Introduction Mercury issues Drinking water sources Drinking water systems Warning system Introduction Awareness Data allocation Simple Warning system Communication Evacuation plan Introduction Progressive scheme safe area Safe areas • Providing information • Working with villagers Conclusion Recommendations Living with the floods 20 Project team Surinam
    • Introduction Cause Project team Surinam Warning system ‘Living with the floods’ Organization Awareness Inlands of Surinam Project locations Participation Building a monument at the Drinking water floodline on a central location Introduction Mercury issues Drinking water sources Drinking water systems Warning system Introduction Awareness Data allocation Simple Warning system Communication Evacuation plan Introduction Progressive scheme safe area Safe areas Conclusion Recommendations Living with the floods 21 Project team Surinam
    • Introduction Cause Project team Surinam Warning system ‘Living with the floods’ Organization Data allocation Inlands of Surinam Project locations Participation Waterlevel gauges - preparation Drinking water Introduction Mercury issues Drinking water sources Drinking water systems Warning system Introduction Awareness Data allocation Simple Warning system Communication Evacuation plan Introduction Progressive scheme safe area Safe areas Conclusion Recommendations Living with the floods 22 Project team Surinam
    • Introduction Cause Project team Surinam Warning system ‘Living with the floods’ Organization Data allocation Inlands of Surinam Project locations Participation Waterlevel gauges - result Drinking water Introduction Mercury issues Drinking water sources Drinking water systems Warning system Introduction Awareness Data allocation Simple Warning system Communication Evacuation plan Introduction Progressive scheme safe area Safe areas Conclusion Recommendations Living with the floods 23 Project team Surinam
    • Introduction Cause Project team Surinam Warning system ‘Living with the floods’ Organization Data allocation Inlands of Surinam Project locations Participation Rain gauges – placed by hydrologist S. Naipal Drinking water Introduction Mercury issues Drinking water sources Drinking water systems Warning system Introduction Awareness Data allocation Simple Warning system Communication Evacuation plan Introduction Progressive scheme safe area Safe areas Conclusion Recommendations Living with the floods 24 Project team Surinam
    • Introduction Cause Project team Surinam Warning system ‘Living with the floods’ Organization Simple warning system Inlands of Surinam Project locations Participation Goal: Drinking water • h-h relations between inland villages Introduction Mercury issues Drinking water sources Drinking water systems Waterlevel Kayana Warning system Introduction Awareness Data allocation Simple Warning system Communication Forecast Evacuation plan waterlevel Introduction Djoemoe Progressive scheme Working of the safe area Safe areas warning system Conclusion Recommendations Living with the floods 25 Project team Surinam
    • Introduction Cause Project team Surinam Warning system ‘Living with the floods’ Organization Simple warning system Inlands of Surinam Project locations Participation Measuring river and land profile Drinking water Introduction Mercury issues Drinking water sources Drinking water systems Warning system Using a Diver Using a Diver Introduction Awareness Data allocation 30 30 Simple Warning system Communication Profile Kayana Profile Kayana 25 25 Evacuation plan 20 20 Introduction 15 Progressive scheme 15 safe area 10 10 Safe areas 5 5 Conclusion 0 Recommendations -800 -800 -600 -600 -400 -400 -200 -200 0 0 0 200 200 Living with the floods 26 Project team Surinam
    • Introduction Cause Project team Surinam Warning system ‘Living with the floods’ Organization Simple warning system Inlands of Surinam Project locations Participation Determining Q-h relations using Strickler’s Formula Drinking water Introduction Q = kAR 2 / 3 s1/ 2 Mercury issues Drinking water sources Drinking water systems Estimation of slope (s) and roughness (k) Warning system Introduction 3000 Awareness Data allocation 2500 Simple Warning system Communication 2000 1500 • No kalibration possible Q Evacuation plan 1000 due to lack of historical Introduction Progressive scheme 500 data safe area Safe areas 0 0 2 4 6 8 10 12 14 • Not able to produce Conclusion h accurate h-h relations Recommendations Q-h relation Djoemoe Living with the floods 27 Project team Surinam
    • Introduction Cause Project team Surinam Warning system ‘Living with the floods’ Organization Simple warning system Inlands of Surinam Project locations Participation Final warning system product: Drinking water Introduction Profile-sheet Mercury issues Drinking water sources • river and land profile linked with the gauge in the village Drinking water systems • critical depth Waarschuwingssysteem Djoemoe Warning system In de figuur hieronder ziet u het rivierprofiel van Djoemoe bij de peilschalen. Introduction Goddo op peillat 450 Waterhoogte 400 350 300 Djoemoe - Medische post Awareness 250 200 850 150 100 Waterhoogte 800 Data allocation Vliegveld op peillat 750 Kajana -130 -80 -30 50 0 -50 -100 20 70 120 Afstand 700 -150 -200 Simple Warning system 650 600 -250 -300 -350 -400 -100 -450 Communication 550 500 -500 -550 -600 -650 Kritieke waterhoogte 450 -700 -750 400 -800 -850 350 -900 Evacuation plan -950 300 -1000 -1050 -1100 250 Kritieke waterhoogte -1150 -1200 200 -1250 Introduction 300 150 100 Rivierprofiel Waterhoogte mei 2006 Kritieke waterhoogte Progressive scheme 50 0 In dit rivierprofiel is met de blauwe lijn de hoogste waterstand tijdens de overstroming van mei 2006 aangegeven. De waterhoogte in mei 2006 kwam tot de safe area -300 -250 -200 -150 -100 -50 -50 0 -100 50 100 Afstand 150 stand +75 centimeter op de peilschalen. Het monument bij de medische post in Djoemoe geeft deze hoogte aan. Deze -150 waterstand kan bij een volgende overstroming worden overschreden en geeft dus Safe areas -200 geen veilige hoogte aan. -250 -300 Met de rode lijn is de kritieke hoogte aangegeven. De kritieke hoogte is de -350 waterstand waarbij rekening moet worden gehouden met overstromingen. De kritieke Conclusion waterhoogte is bij een stand van - 125 centimeter op de peilschalen. -400 Gevaar dreigt als het hard regent en de waterhoogte snel stijgt. Bij de stand van -450 - 125 centimeter moet de stijgsnelheid van het water goed in de gaten worden -500 gehouden, zodat de bewoners van Djoemoe snel gewaarschuwd kunnen worden Recommendations -1250 -550 -600 wanneer het water van de rivier nog verder stijgt. Als de waterhoogte de kritieke waterhoogte passeert moet Botopasi gewaarschuwd worden dat er hoog water op komst is. Rivierprofiel Waterhoogte mei 2006 Kritieke waterhoogte Living with the floods 28 Project team Surinam
    • Introduction Cause Project team Surinam Warning system ‘Living with the floods’ Organization Communication Inlands of Surinam Project locations Participation Communication necessary Drinking water Introduction Stable situation Mercury issues Drinking water sources • uniform messages Drinking water systems • radio contact Warning system villages-Paramaribo Introduction Awareness Data allocation Simple Warning system Critical / emergency Communication situation Evacuation plan • radio contact Introduction Progressive scheme villages-villages safe area Safe areas • emergency communication in villages (hierarchical Conclusion Recommendations network) Living with the floods 29 Project team Surinam
    • Introduction Cause Project team Surinam Evacuation plan ‘Living with the floods’ Organization Introduction Inlands of Surinam Project locations Participation Evacuation plan important in case of Drinking water future floodings Introduction Mercury issues Drinking water sources Challenges: Drinking water systems • No evacuation plan available Warning system • Many houses in risk areas close to Introduction Awareness the river Data allocation Simple Warning system • No notion inhabitants of safe areas Communication Evacuation plan Introduction Progressive scheme Goals: safe area Safe areas • Developing a progressive scheme to determine safe areas Conclusion Recommendations • Identification safe areas in Kayana, Godo and Botopasi Living with the floods 30 Project team Surinam
    • Introduction Cause Project team Surinam Evacuation plan ‘Living with the floods’ Organization Progressive scheme safe area Inlands of Surinam Project locations Participation A progressive scheme to determine safe areas: Drinking water Introduction Mercury issues 1. 1. Geography – location of the village Geography – location of the village Drinking water sources 2. 2. Identification inhabited areas Identification inhabited areas Drinking water systems 3. 3. Measuring water level May 2006 Measuring water level May 2006 Warning system 4. Mapping topography villages Introduction 4. Mapping topography villages Awareness 5. 5. Identification safe areas Identification safe areas Data allocation Simple Warning system 6. 6. Mapping walking paths Mapping walking paths Communication 7. 7. Conclusion about availability and Conclusion about availability and Evacuation plan accessibility safe areas accessibility safe areas Introduction Progressive scheme safe area Safe areas Conclusion Recommendations Living with the floods 31 Project team Surinam
    • Introduction Cause Project team Surinam Evacuation plan ‘Living with the floods’ Organization Safe areas Inlands of Surinam Project locations Participation Case study: Kayana Drinking water Introduction Mercury issues Drinking water sources Drinking water systems Warning system Introduction Awareness Data allocation 2. Inhabited area 2. Inhabited area 3. Flooded area 3. Flooded area Simple Warning system Communication Evacuation plan Introduction Progressive scheme safe area Safe areas Conclusion Recommendations 5. Safe area 5. Safe area 7. Conclusion 7. Conclusion Living with the floods 32 Project team Surinam
    • Introduction Cause Project team Surinam Evacuation plan ‘Living with the floods’ Organization Safe areas Inlands of Surinam Project locations Participation Case study: Godo Drinking water Introduction Mercury issues Drinking water sources Drinking water systems Warning system Introduction Awareness Data allocation 2. Inhabited area 3. Flooded area Simple Warning system 2. Inhabited area 3. Flooded area Communication Evacuation plan Introduction Progressive scheme safe area Safe areas Conclusion Recommendations 5. Safe area 7. Conclusion 5. Safe area 7. Conclusion Living with the floods 33 Project team Surinam
    • Introduction Cause Project team Surinam Conclusion ‘Living with the floods’ Organization Inlands of Surinam Project locations Participation • Mercury concentrations sufficiently low in the water Drinking water phase Introduction • SODIS system is advised to use in case of calamities Mercury issues Drinking water sources Drinking water systems • Awareness through monument and participation Warning system • Data allocation is started Introduction Awareness • Simple warning system usable Data allocation Simple Warning system • Communication between villages and between the inlands Communication of Surinam and Paramaribo is tested and functioning Evacuation plan Introduction Progressive scheme • Safe areas in the villages can be determined safe area Safe areas Conclusion Recommendations Living with the floods 34 Project team Surinam
    • Introduction Cause Project team Surinam Recommendations ‘Living with the floods’ Organization Inlands of Surinam Project locations Participation • Education of the concept : ‘safe drinking water’ Drinking water • Introduction of the SODIS to all inhabitants of the villages Introduction Mercury issues Drinking water sources Drinking water systems • Complete hydrological warning system • Continuity: responsibility and maintenance Warning system Introduction • Test emergency communication Awareness Data allocation Simple Warning system • Topographical research in other villages to determine Communication more safe areas Evacuation plan • Work out evacuation plan Introduction Progressive scheme safe area Safe areas Conclusion Recommendations Living with the floods 35 Project team Surinam
    • Living with the floods 36 Project team Surinam
    • Sponsor Duinwaterbedrijf Zuid-Holland Living with the floods 37 Project team Surinam