Application of Geo-Spatial Technique for Flood Inundation Mapping of Low Lying Areas
Flooding is one of the severe disaster causes mass demolition of properties and affected human lives. In hazardous flood of year 2006, 90–95 % of Surat city, India, was under water and so that local planner as well as decision makers need accurate information on the spatial distribution, magnitude, depth of flooding and land use affected by such floods. Surat city is majorly partitioned into seven different zones named north zone, east zone, central zone, south zone, south-east zone, south-west zone, and west zone. Purpose of this study is to determine inundation of water in low laying areas of west zone. By procedure of Geo-reference along with Ground Control Point (GCP) and GPS points, 0.5 m interval contour map for west zone is introduced. Digitization of contour through GIS software and Digital Elevation Model (DEM) of West Zone through ArcGIS software is carried out. Probable submergence area for rescue work is also scrutinized. Graph of submergence area of West Zone according Town Planning Scheme (TPS) versus water level and flood Inundation map are generated which specify that West Zone and its TPS are low lying areas in Surat whose 20–25 km2 area will be submerge when water level exceeds 12 m height (MSL). The accuracy and validation of DEM is calculated by comparison with actual observed data at the time of flooding.
KeywordsDigital elevation model Flood Inundation mapping RS & GIS Vulnerability
The authors would like to express their sincere thanks to Bhaskaracharya Institute For Space Applications and Geo-Informatics, National Bureau of Soil Survey and Land Use Planning, National Resources Information System, Survey of India, Central Water Commission, Irrigation Department, Surat Municipal Corporation and Technical Bulletin-Report on Reconnaissance Soil Survey of Surat District for providing necessary data, facilities and support during the study period.
- Agnihotri P, Patel J (2008) Preparation of flood reduction plan for Surat city and surrounding region (India). Int J Trans Fluid Mech 2(3):116–125Google Scholar
- Andrysiak PB, Maidment DR (2000) Visual floodplain modeling with geographical informatioain modeling with geographical information systems (GIS). The University Of Texas at Austin, AustinGoogle Scholar
- Casale R, Margottini C (1999) Floods and landslides: integrated risk assessment. Springer, Berlin, pp 147–189Google Scholar
- CWC (2000–2001) Water year book 2000–2001, Tapi Basin, Hydrological observation circle, Gandhinagar, Gujarat, IndiaGoogle Scholar
- Kresch DL, Mastin M, Olsen T (2002) Fifty-year flood-inundation maps for Olanchito, Honduras, US Geological Survey, Tacoma, Washington, USA. The SurveyGoogle Scholar
- Patel DP, Dholakia MB (2010) Identifying probable submergence area of Surat city using digital elevation model and geographical information system. World Appl Sci J 9:461–466Google Scholar
- Patel DP, Gajjar CA, and Srivastava PK (2012b) Prioritization of Malesari mini-watersheds through morphometric analysis: a remote sensing and GIS perspective. Environ Earth Sci, pp 1–14Google Scholar
- Patel DP, Srivastava PK (2013) Flood hazards mitigation analysis using remote sensing and GIS: correspondence with town planning scheme. Water Resour Manage, pp 1–16Google Scholar
- Pistocchi A, Mazzoli P (ed) (2002) Use of HEC-RAS and HEC-HMS models with ArcView for hydrologic risk management. In: IEMS 2002 proceeding international environmental modelling and software society conference, Lugano, Switzerland, pp 305–310Google Scholar
- Sulebak J (2000) Applications of digital elevation models. DYNAMAP Project, OsloGoogle Scholar
- Sutanta H (2002) Spatial modeling of the impact of land subsidence and sea level rise in a coastal urban setting, case study: Semarang, Central Java, Indonesia (Thesis). Type, M.Sc. thesis, International Institute for Geo-Information and Earth Observation, ITC, Enschede, The NetherlandsGoogle Scholar