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1 Nov 19, 2017
GEOLOGICAL, GEOMORPHOLOGICAL AND LINEAMENT MAPPING USING REMOTE SENSING AND GIS - A TOOL FOR LAND USE PLANNING IN TIRUCHCHIRAPPALLI DISTRICTS OF TAMIL NADU

Land use planning is mandate for developing countries like India. This study aims to map the distribution of rock units, geomorphological landforms and lineaments Patten across a Tiruchchirappalli district for land use planning. Geological map is a graphical presentation of geological observations and interpretations on a horizontal plane. The geological survey of India map has been used for Geological map creation and Landsat OLI satellite data for geomorphological landforms mapping in 1:50000 scale. The lineament map was created using Shuttle Radar Topography Mission (SRTM) satellite data. Granite gneiss and Charnockite were majorly covered in the study area. In the geomorphological landforms alluvial plain, pediment, pediplain were highly observed in the mapping. From the interpretation of lineaments NE-SW, NW-SE trends were vastly mapped. It can be used effectively in different urban Land use planning practices and geomorphological hazard mapping....

Authors: A. Balukkarasu, B. Santhosh Kumar.

2 Nov 19, 2017
INVESTIGATION OF RAIN WATER HARVESTING POTENTIAL FOR SUSTAINABLE WATER MANAGEMENT

Rapid urbanisation followed by the increase of paved surfaces conditions the infiltration of rain water into the soil. As the water demand started increasing with spiralling population, open wells and bore wells started drying up. The problem becomes very severe if no sincere attempt is made to replenish the ground water table with rainwater during the monsoon. In this paper, a study is carried out to estimate the runoff volume for B.S.Abdur Rahman Crescent University (BSACU) campus, Vandalur, Chennai, India by using Soil Conservation Service (SCS) curve number (CN) method. The water supply and demand for the university is studied in detail. The campus area is divided into sub watersheds and then the runoff is estimated using ArcGIS. The elevations at very closed intervals are measured using Global Positioning System (GPS) data collector and a Digital Elevation Model (DEM)of the campus area is generated. The sub watersheds contributing water in the study area are delineated with the help of Digital Elevation Model of the area. The subsequent runoff is calculated using the parameters such as rainfall, landuse, soil and slope. From the study it is found that about 74% of the rainfall is going away as runoff from the studyarea. Suitable sites for recharge pits are suggested. Based on this study, it is suggested that suitable other harvesting methods are also to be adopted to save water and supplement the increasing water demand of the growing university for which the maps prepared in this study are useful....

Authors: M.V.Molykutty, K.Kanmani, N.Maharajan.

3 Nov 19, 2017
INVESTIGATION OF COASTAL LANDFORMS ALONG THE SOUTHEAST COAST OF INDIA USING REMOTE SENSING AND GIS TECHNIQUES

Coastal geomorphology map could help in various coastal zone management planning. Coastal geomorphology map of Gulf of Mannar from Dhanushkodi to Tuticorin was prepared using LISS-III satellite data and Survey of India (SOI) topographic sheets on 1: 50,000 scale and validated by ground truth. Various coastal landform units have been identified and delineated based on the remote sensing data. The coastal landforms in study region are grouped in to marine, fluvial-marine, fluvial, Aeolian and biogenic landforms. Most of the landform units such as spits, beach ridges, beaches, strand line, back swamp, mud flat etc. indicate that the coast is pro-grading towards the seaward side....

Authors: M. Thanikachalam, S. K. Nimalan.

4 Nov 19, 2017
MAPPING OF URBAN GROWTH IN THANJAVUR CITY USING SHANNON ENTROPY ANALYSIS

Thanjavur city is agriculture based one and it is engulfing into a higher urban growth rate. In this context, the present study analyses the urban growth of Thanjavur city between 1970-2014 using geospatial data with Shannon entropy analysis for identifying the direction of growth. Based on the analysis, the buffer zones are created and growth has been characterized as first, second and third level of sprawl. The study concluded that the city is sprawling rapidly towards southern part, also observed it affect the agricultural land as it leading to conversion of land into built up areas....

Authors: Rajakokila K, Neelakantan R.

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  • Vol 2, Issue 5 Sept 2012 will be published on 22 Sept 2012 Evening. Kindly wait for little more time. Posted by Admin.