Author : Satarupa Rakshit 1
Date of Publication :30th December 2021
Abstract: Chennai has been the center of trade and commerce from ages. But with the recent high urban growth rates the damages have outweighed the gains. The city is witnessing floods very frequently and this has encouraged us to take up the study to create the risk zones within the city. The present study aims to generate the hazard, vulnerability and the risk profile maps of the city at ward level using remote sensing and GIS techniques. The analysis shows that land use land cover change caused by urban expansion increased the flood risks of Chennai. Furthermore, the authors observed that urbanization increases the exposure to flooding and flood depth in the study area which plays a greater role in flood risk. Urbanization and changes in the land use land cover changes leads to increase in flood risk and exposure. The land development generally occurs by infilling in the natural drainage and vegetation prevailing in the region. This leads to water clogging and man-made flooding during high intensity short duration rainfall. So in such situations proper urban planning is essential which considers proper drainage system for channelizing excess water flow.
Reference :
-
- Singh, P., Sinha, V. S. P., Vijhani, A., & Pahuja, N. (2018). Vulnerability assessment of urban road network from urban flood. International journal of disaster risk reduction, 28, 237-250
- Census of India, 2011. Provisional Population Totals, Government of India.
- Huong, H. T. L., & Pathirana, A. (2013). Urbanization and climate change impacts on future urban flooding in Can Tho city, Vietnam. Hydrology and Earth System Sciences, 17(1), 379.
- Nair, K. S., 2009. An assessment of the impact of climate change on the megacities of India and of the current policies and strategies to meet associated challenges. Fifth Urban Research Symposium
- Avinash, S., 2016. Flood related disasters: concerned to urban flooding in Bangalore, India. International Journal of Research in Engineering and Technology, 03(16), pp. 76-83
- Guhathakurta, P., Sreejith, O. P., & Menon, P. A. (2011). Impact of climate change on extreme rainfall events and flood risk in India. Journal of earth system science, 120(3), 359.
- Field, C. B., Barros, V., Stocker, T., Qin, D., Dokken, D., Ebi, K., ... & Tignor, M. (2012). IPCC, 2012: Managing the risks of extreme events and disasters to advance climate change adaptation. A special report of Working Groups I and II of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge, UK, and New York, NY, USA, 30(11), 7575-7613
- Hanson, S., Nicholls, R., Ranger, N., Hallegatte, S., Corfee-Morlot, J., Herweijer, C., & Chateau, J. (2011). A global ranking of port cities with high exposure to climate extremes. Climatic change, 104(1), 89-111.
- Shrestha, B. B., Okazumi, T., Miyamoto, M., & Sawano, H. (2016). Flood damage assessment in the P ampanga river basin of the P hilippines. Journal of Flood Risk Management, 9(4), 355-369.
- Dewan, A. M., & Yamaguchi, Y. (2008). Effect of land cover changes on flooding: example from Greater Dhaka of Bangladesh. International Journal of Geoinformatics, 4(1), 11-20.
- Dewan, A. M., & Yamaguchi, Y. (2009). Land use and land cover change in Greater Dhaka, Bangladesh: Using remote sensing to promote sustainable urbanization. Applied geography, 29(3), 390-401.
- Liu, W., Chen, W., & Peng, C. (2014). Assessing the effectiveness of green infrastructures on urban flooding reduction: A community scale study. Ecological Modelling, 291, 6-14.
- Adger, W. N., Brooks, N., Bentham, G., Agnew, M., & Eriksen, S. (2005). New indicators of vulnerability and adaptive capacity. Norwich: Tyndall Centre for Climate Change Research.
- Brooks, N., & Adger, W. N. (2005). Assessing and enhancing adaptive capacity. Adaptation policy frameworks for climate change: Developing strategies, policies and measures, 165-181.
- Sharma, U., & Patwardhan, A. (2008). An empirical approach to assessing generic adaptive capacity to tropical cyclone risk in coastal districts of India. Mitigation and adaptation strategies for global change, 13(8), 819-831.
- Nyarko, B. K., Diekkrüger, B., Van De Giesen, N. C., & Vlek, P. L. (2015). Floodplain wetland mapping in the White Volta river basin of Ghana. GIScience & Remote Sensing, 52(3), 374-395.
- Merz, B., Thieken, A. H., & Gocht, M. (2007). Flood risk mapping at the local scale: concepts and challenges. In Flood risk management in Europe (pp. 231-251). Springer, Dordrecht
- Kim, D., Jung, H. S., & Baek, W. (2016). Comparative analysis among radar image filters for flood mapping. Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, 34(1), 43-52.
- Lee, M. J., Kang, J. E., & Kim, G. (2015). Application of fuzzy combination operators to flood vulnerability assessments in Seoul, Korea. Geocarto international, 30(9), 1052-1075.
- Klaus, S., Kreibich, H., Merz, B., Kuhlmann, B., & Schröter, K. (2016). Large-scale, seasonal flood risk analysis for agricultural crops in Germany. Environmental Earth Sciences, 75(18), 1289.
- Vojtek, M., & Vojteková, J. (2016). Flood hazard and flood risk assessment at the local spatial scale: a case study. Geomatics, Natural Hazards and Risk, 7(6), 1973-1992.
- Cao, C., Xu, P., Wang, Y., Chen, J., Zheng, L., & Niu, C. (2016). Flash flood hazard susceptibility mapping using frequency ratio and statistical index methods in coalmine subsidence areas. Sustainability, 8(9), 948.
- Chang, H. S., & Chen, T. L. (2016). Spatial heterogeneity of local flood vulnerability indicators within flood-prone areas in Taiwan. Environmental Earth Sciences, 75(23), 1484.
- Bhuiyan, S. R., & Al Baky, A. (2014). Digital elevation based flood hazard and vulnerability study at various return periods in Sirajganj Sadar Upazila, Bangladesh. International journal of disaster risk reduction, 10, 48-58.
- Tholons (2013). 2014 Tholons top 100 outsourcing destinations: Rankings.
- Viswanathan, V., & Tharkar, S. (2010). Can the divide be bridged: Overview of life in urban slums in India. Indian journal of community medicine: official publication of Indian Association of Preventive & Social Medicine, 35(1), 198
- Mohan, M., Pathan, S. K., Narendrareddy, K., Kandya, A., & Pandey, S. (2011). Dynamics of urbanization and its impact on land-use/land-cover: a case study of megacity Delhi. Journal of Environmental Protection, 2(09), 1274.
- Turok, I., & McGranahan, G. (2013). Urbanization and economic growth: the arguments and evidence for Africa and Asia. Environment and Urbanization, 25(2), 465-482.
- Ranger, N., Hallegatte, S., Bhattacharya, S., Bachu, M., Priya, S., Dhore, K., ... & Herweijer, C. (2011). An assessment of the potential impact of climate change on flood risk in Mumbai. Climatic change, 104(1), 139-167.
- Glaser, S., Glaser, R., Drescher, A., Pfeiffer, C., Schliermann-Kraus, E., Lechner, M., & Vencatesan, J. (2008). Geo-communication for risk assessment and catastrophe prevention of flood events in the coastal areas of Chennai.
- Bhuvana, N., & Aram, I. A. (2019). Facebook and Whatsapp as disaster management tools during the Chennai (India) floods of 2015. International journal of disaster risk reduction, 39, 101135.
- Gupta, A. K., & Nair, S. S. (2010). Flood risk and context of land-uses: Chennai city case. Journal of Geography and Regional Planning, 3(12), 365.
- Suriya, S., & Mudgal, B. V. (2012). Impact of urbanization on flooding: The Thirusoolam sub watershed–A case study. Journal of hydrology, 412, 210-219.
- Suriya, S., Mudgal, B. V., & Nelliyat, P. (2012). Flood damage assessment of an urban area in Chennai, India, part I: methodology. Natural hazards, 62(2), 149-167
- Mariappan, V. N., & Devi, R. S. (2012). Chennai coast vulnerability assessment using optical satellite data and GIS techniques. Int. J. Remote Sensing GIS, 1(3), 175-182.
- Mishra, A. K. (2016). Monitoring Tamil Nadu flood of 2015 using satellite remote sensing. Natural Hazards, 82(2), 1431-1434.
- Muneerudeen, A. (2017). Urban and landscape design strategies for flood resilience in Chennai city (Master's thesis). IV. SEENIRAJAN, M., NATARAJAN, M., THANGARAJ, R., & BAGYARAJ, M. (2017). STUDY AND ANALYSIS OF CHENNAI FLOOD 2015 USING GIS AND MULTICRITERIA TECHNIQUE. JOURNAL OF GEOGRAPHIC INFORMATION SYSTEM, 9(02), 126.
- Assessment, A. R. (2018). Chennai floods 2015.
- Dhiman, R., VishnuRadhan, R., Eldho, T. I., & Inamdar, A. (2019). Flood risk and adaptation in Indian coastal cities: Recent scenarios. Applied Water Science, 9(1), 5.
- Dewan, A. M., Nishigaki, M., & Komatsu, M. (2004). DEM based flood extent delineation in Dhaka City, Bangladesh. Journal of the Faculty of Environmental Science and Technology, 9(1), 99-110
- Park, K., & Won, J. H. (2019). Analysis on distribution characteristics of building use with risk zone classification based on urban flood risk assessment. International journal of disaster risk reduction, 38, 101192.
- Waghwala, R. K., & Agnihotri, P. G. (2019). Flood risk assessment and resilience strategies for flood risk management: A case study of Surat City. International Journal of Disaster Risk Reduction, 40, 101155.
- Bae, S., & Chang, H. (2019). Urbanization and floods in the Seoul Metropolitan area of South Korea: What old maps tell us. International Journal of Disaster Risk Reduction, 37, 101186. [44] Cutter, S. L., & Finch, C. (2008). Temporal and spatial changes in social vulnerability to natural hazards. Proceedings of the National Academy of Sciences, 105(7), 2301-2306.
- Kim, Y. O., Seo, S. B., & Jang, O. J. (2012). Flood risk assessment using regional regression analysis. Natural hazards, 63(2), 1203-1217.
- Im, E. S., Jung, I. W., & Bae, D. H. (2011). The temporal and spatial structures of recent and future trends in extreme indices over Korea from a regional climate projection. International Journal of Climatology, 31(1), 72-86.
- Sakieh, Y. (2017). Understanding the effect of spatial patterns on the vulnerability of urban areas to flooding. International journal of disaster risk reduction, 25, 125-136.