decentralized solutions to urban flooding in guzelyurt, north cyprus

Identification

DataImplementationAnalysis

Future

Outline

Approaches to

Decentralized

Urban Flooding

Integration of

2

Identification Problem Identification

100 m

Source(all): Author

100m

Exst. irrigation pipeExst. sw networkBorder of the focus areaLowest ElevationHighest Elevation

Incoherent Governance

Poor SW Infrastructure

Lack of Permeable Surface Utilization

3

Research Question: How can

decentralized stormwater management technologies be utilized in northeast Güzelyurt to effectively address the risk of regular urban flooding?

Identification

Source: Author 4

Identification Concept Development

Source: Own diagram.5

Data Precipitation Distribution

6

Data Surface Distribution

100 m

Permeable SurfacesRoof AreaRoad Area

Type Area (m2) % Area

ROc RO (m3) % RO

Total 186,421 100 0.77 4,065 100

Roof 48,663 26 0.90

1,244 31

Road 26,234 14 0.95 708 17

Permeable

106,301 57 0.70 2,113 52

Distribution of Area and Runoff by Surface Type

7

Implementation Relief Channel

100 m

RIVER BED

Permeable SurfacesRoof AreaRoad Area

Exst. sw networkExst. Irrigation Pipe

Planned Channel

Security: 20%

Households

Conveys: 70

m3/30mm event

Reduces: 2%

Area Load

Source: Author

8

Implementation Cisterns

Household Water Consumption Supplied by Harvested Rainwater

30 mm/d < 4 m3

Total: 11,153 m3/year

House: 32

m3/year

Consumption: 0.125

m3/person/day

Cistern 5m3

Cistern 5m3

9

Implementation

Septic Tanks and Dry Wells

Cistern Septic Tank Dry Well01.0010.0016.0024.00

Time0.5 m3

1.0 m3

2.5 m3

3.6 m3

1 m3

2 m3

5.0 m3

5.0 m3

0 m3

0 m3

0.8 m3

3.3 m3

Cistern 5m3

Septic Tank~5m3

Dry Well~4m3

220connectio

ns

Block Names

Houses connected toSeptic Tanks & Dry Wells

Names of Road SectionsR10

A

100 m

Capacity:

8.77 m3l

Remaining

Reduction

10

Implementation Bioswales in Parking Area

25 m

150 m2

80 m2

PP1

PP2

Retention Capacity

PP1: 70 m3

Retention

CapacityPP2:

40 m3

Source: Ciara Gonzalez (2011) 11

Implementation Technological Summary

Remaining Reduction

2% 30%

49%

4%

12

Analysis Cost Calculations

cost

[eur

]

exce

ss w

ater

[m

3 ]

septic syste

m220

cisterns345

swale54

cistern36

affected households

13

Analysis Stakeholder Analysis

Key StakeholderSource:Felipe Gonzalez-Zapata and Richard Heeks (2015) The multiple meanings of open government data: Understanding different stakeholders and their perspectives. Government Information Quarterly Volume 32, Issue 4, Pages 441–452. 14

Analysis Cost Benefit Analysis

net present value before tax [eur]

suggested

package

centralized solution

Source: Author

Source: Gundem Kibris(2015)

15

Future Implementation Timeline

16

Conclusion

How can decentralized stormwater management technologies be utilized in northeast Güzelyurt to effectively address the risk of regular urban flooding?

Septic Tanks & Dry Wells

-Septic Tanks-Bio swales-Cisterns

Existing infrastructure and decentralized stormwater management technologies can be effectively utilized, while taking water scarcity and stakeholder needs into account within the context of environmental justice and resource efficiency, to address urban flooding in north-east Güzelyurt

Rain Water Harvesting

JointResponsibility

Low IncomeArea Addressed

Time &Cost Efficient

17

Financial

Institutionaltechnicalvisual

acknowledgements?bertrug, cyprus students (as a group or one by one?), fellow reaps (as a group or one by one?), professors, wonbae!, student who sent us stormwater data, sammy the dentist

Task Distribution

18

- Akan, A. O. and Houghtalen, R. J.(2003) "Urban hydrology, hydraulics, and stormwater quality: engineering applications and computer modeling. John Wiley & Sons, - Akintug, B., Sahin, E. & Yanmaz, M. 2013. Modeling of Morphou (Güzelyurt) and Remedial Measures. In: Digest 1659-1673.- Akintug, B., Yanmaz, M. & Akyürek, Z. 2010. Modeling of Bostancı-Güzelyurt Flood (Proposal)- ASCE,1970- CEHI - The Caribbean Environmenatl Health Institute (2009). "Rainwater, catch it while you can: A handbook on rainwater harvesting in the Caribbean" The European Union Environmental

Programme- UNEP- Census (2011) http://www.devplan.org/Nufus-2011/Nufus-2011.html- Dahiru, 2014. TREND OF WATER BUDGET OF TURKISH REPUBLIC OF NORTHERN CYPRUS (2000 - 2012). THESIS SUBMITTED TO THE GRADUATE SCHOOL OF NATURAL AND APPLIED SCIENCES

OF MIDDLE EAST TECHNICAL UNIVERSITY- Dickhaut, W. 2015. Slides of Urban Water Cycles at HCU Hamburg.- Felipe Gonzalez-Zapata and Richard Heeks (2015) The multiple meanings of open government data: Understanding different stakeholders and their perspectives. Government Information

Quarterly Volume 32, Issue 4, Pages 441–452.- Ghisi, E.; Montibeller, A.; Schmidt, R. W. “Potential for potable water savings by using rainwater: An analysis over 62 cities in southern Brazil,” Build. Environ., vol. 41, no. 2, pp. 204–210,

2006.], - GOZEN, ELKIRAN; TURKMAN, AYSEN. (2008) “WATER SCARCITY IMPACTS ON NORTHERN CYPRUS AND ALTERNATIVE MITIGATION STRATEGIES” Environmental Problems of Central Asia and their

Economic, Social and Security Impacts. Springer- Harb, Rayaan (2015) “Assessing the Potential of Rainwater Harvesting System at the Middle East Technical University – North Cyprus Campus” Sustainable Environment and Energy Systems

Program: Master’s Thesis. METU-NCC- Horn, D. R. Graphic Estimation of Peak Flow Reduction in Reservoirs, J. Hydraulic Division, ASCE, 113(11) pp. 1441-1450, 1987.] - Horton, Robert E. (1933) "The role of infiltration in the hydrologic cycle" Trans-America Geophysics Union 14th Annual Meeting. p.446-460- Jahani, Elham; Akintug, Bertug; Dickhaut, Wolfgang. (2015) “A Case Study of Rainfall Water Harvesting Effects on Runoff for Guzelyurt, Northern Cyprus” Sustainable Built Environment 2016

Conference.- Gardiner and Theobald (2011) International Construction Cost Survey.- NRCS (2015) http://www.esf.edu/ere/endreny/GICalculator/SoilInstruction.html- Okoye, C. O.; Solyalı, O.; Akıntuğ, B. “Optimal sizing of storage tanks in domestic rainwater harvesting systems: A linear programming approach,” Resour. Conserv. Recycl., 2015.], - ŞAHİN, Erdal; AKINTUĞ, Bertuğ; YANMAZ, A. Melih. (2013) “Modeling of Morphou (Güzelyurt) Flood and Remedial Measures” Digest 2013. P.1659-1673- Sahin, E. 2012. A STUDY ON FLOOD MANAGEMENT PRACTICES FOR GÜZELYURT. THESIS SUBMITTED TO THE GRADUATE SCHOOL OF NATURAL AND APPLIED SCIENCES OF MIDDLE EAST

TECHNICAL UNIVERSITY- USACE, HEC-SSP Users Manual Version 4.1, Davis, CA, ABD, 2009- USDA. Soil Conservation Service, National Engineering Handbook, Washington D.C., 1972.- Usul, N. Engineering hydrology. METU Press, 2001.] - Weatherbase (2015) http://www.weatherbase.com/weather/weatherall.php3?s=110541&refer=&units=us&cityname=Morphou-Cyprus- Yanmaz, A. M. Applied Water Resources Engineering, METU Press, Ankara, 2006.].”- Cost Estimations

- http://data.worldbank.org/indicator/NY.GDP.PCAP.CD- http://www.eisen-stoll.de/Preislisten/Stahl/PDF/KG.pdf- http://www.architektur-lexikon.de/cms/component/finder/search.html?q=kosten&limitstart=0- http://www.birimfiyat.com/index.php- http://www.imo.org.tr/resimler/ekutuphane/pdf/16947_14_13.pdf- http://www.kibrispostasi.com/index.php/cat/69/news/179424/PageName/GUZELYURT

References

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