Bøger af Sm. Ramasamy

The authors, as geologists, were endowed with the fortune of working in Geomatics technology comprising Remote Sensing, GIS, GPS, etc. with a focused vision to bring out the Quaternary geological history of different parts of Indian Peninsular, the senior author during the last four decades and the co-authors during the last one and half decades. As geomorphology, one of the major branch of geology, not only dealing with external landscape architecture of the planet earth but also bears the records on the Quaternary tectonics, riverine, coastal, aeolian, glacial, volcanic and other geomorphic processes of the Quaternary period, the authors were stimulated to carry out studies on the riverine life histories, shoreline changes and offshore land building phenomena, the recent earth movements from the geomorphic anomalies, Holocene tectonics and their control over Quaternary deltas, etc. Besides unfurling the geological history of the Quaternary period, geomorphology has been deeply studied by the authors with the focus on mapping and mitigation of natural disasters like seismotectonics, landslides, response of coastal geomorphology to tsunami surges, floods, etc.

Due to unprecedented growth in population and the resultant massive mining of energy resources, especially the non-renewable resources and also water resources, these resources have gradually become scarce commodities. Hence the geoscientists and the technocrats from all over the world have embarked into many fold research programmes for locating newer reservoirs of these resources and also to develop models to conserve and sustainably exploit them. As this involves the total understanding of the rock types, tectonic architecture, geomorphology and reservoir conditions, the Geomatics technology comprising Remote Sensing, Geographic Information System (GIS), etc have been found to be vital tools in the inventory and management of these resources; While the former due to its synoptivity, multispectral nature and repeativity and the latter by virtue of its capability to store, manipulate and model huge volume of spatial and non-spatial data. Divergent geological provinces and processes are brought out deserving concepts and methods on geology, 3D visualization of subsurface lineaments, SRTM based lineament mapping, spatio-linear modeling of hard rock aquifer systems, 3D visualization of oil bearing structures, etc., both as field geologists and as researchers.

The book "Landslide Research- The DST's Initiatives" is a compilation of over 21 Scientific articles on various aspects of Landslides viz: Overviews, Earth system processes and Landslides, Landslide hazard Zonation mapping, Geotechnical investigations, instrumentation and early warning of Landslides, Satellite based monitoring of Landslides, site specific investigations etc. These articles are the outcome of the studies carried by various academicians, researchers and the research institutions under the funding of NRDMS/DST in different geological provinces of Indian subcontinent. These articles provide wider and deeper spectrum of information on earth system processes like post collision tectonics of Shillong plateau, Churachandpur-Mao fault and up-warping of Tirumalai hills and the Landslides; different geo-spatial and geo-statistical techniques and optimisation of methods for Landslide hazard zonation mapping from Western Ghats of South India, BIS based methods of LHZ mapping and Geotechnical investigations encompassing RMR, SMR & Kinematic studies of landslides of northeastern region; instrumentation and forewarning of Jakhri Landslides, wireless sensor based Landslide monitoring of Munnar (Kerala); SAR interferometery based monitoring of Nainital and Mansadevi landslides; and site specific landslides studies of Kailasaur (Himalayas), Rawana slides (Himachal Pradesh), geophysical studies of Landslides of Mizoram region, Malin landslides (Maharashtra) , techniques of diagnosing active movements from Nilgiris etc.

Due to unprecedented growth in population and the resultant massive mining of energy resources, especially the non-renewable resources and also water resources, these resources have gradually become scarce commodities. Hence the geoscientists and the technocrats from all over the world have embarked into many fold research programmes for locating newer reservoirs of these resources and also to develop models to conserve and sustainably exploit them. As this involves the total understanding of the rock types, tectonic architecture, geomorphology and reservoir conditions, the Geomatics technology comprising Remote Sensing, Geographic Information System (GIS), etc have been found to be vital tools in the inventory and management of these resources; While the former due to its synoptivity, multispectral nature and repeativity and the latter by virtue of its capability to store, manipulate and model huge volume of spatial and non-spatial data. Divergent geological provinces and processes are brought out deserving concepts and methods on geology, 3D visualization of subsurface lineaments, SRTM based lineament mapping, spatio-linear modeling of hard rock aquifer systems, 3D visualization of oil bearing structures, etc., both as field geologists and as researchers.