Shoreline maps of Gujarat and Puducherry released

Shoreline maps of Gujarat and Puducherry released

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India: Jairam Ramesh, Minister of State for Environment and Forests (I/C) launched the shoreline study maps of Gujarat and Puducherry. These maps are approved by the respective state governments. Ramesh said, “The coastline of India is undergoing changes due to various anthropogenic and natural interventions. Most of the shoreline changes are on account of the structures which have been developed/constructed along the foreshore of the country. Several of these developments are not compatible with the dynamic nature of the shoreline.”

The shoreline study was assigned to Institute for Ocean Management (IOM), Chennai. The maps for Orissa and Tamil Nadu are waiting for the state governments’ approval. These maps will be made available on the website of SICOM at www.ncscm.org/sicom.

A dedicated website for documentation and dissemination of the information to the public and all stakeholders with regard to the Integrated Coastal Zone Management Project was also launched today. It was initiated with the assistance of the World Bank including the activities relating to coastal zone management in the country. Society of Integrated Coastal Management (SICOM) set up this website which will provide all information relating to the project that is being implemented by SICOM and the State Project Management Units of Orissa, West Bengal and Gujarat including the National Centre for Sustainable Coastal Management.

The new website will act as a communication channel for information dissemination. It will showcase various Integrated coastal zone management (ICZM) projects executed by National Project Management Unit, State Project Management Unit and Project Executing Agencies and create a community platform for active interaction between SICOM and the stakeholders. Public can actively contribute ideas, opinions, views on activities related to ICZM projects. The website contains grievances recording and redressal mechanism.

Meanwhile, Survey of India has submitted inception report on mapping, delineation and demarcation of the hazard line along India’s coast. The inception report includes digital elevation model of 0.5meter, contour lines of 0.5metres elevation, ortho rectified photographs in 1:10,000 scales, hazard line marked down on ortho rectified prints, hazard line demarcated on the ground villages boundaries with name, village roads. Other features would include river, lakes, sea, railway lines, channels, etc.

The process of hazard line mapping along the coast involves digital aerial photography at 9cm GSD and photogrammetric surveys and preparation digital terrain model at 0.5m for the entire mainland coast; collection of historical tide gauge data and its analysis to determine 100years flood levels; analysis of maps and satellite imagery/Aerial Ortho imagery since, 1967 to predict the erosion line over the next 100years; preparation of composite maps, showing the hazard line on the digital data and transfer of the hazard line to topographic maps for public dissemination. Once the hazard line is delineated, ground markers will be constructed. This is important as the revenue maps used for local planning purposes are not comparable to topographic maps.

Source: PIB