We'd like to understand how you use our websites in order to improve them. Register your interest. Use of satellite remote sensing techniques coupled with aerial photo-interpretation greatly aid in planning ground water exploration, and pin pointing well sites In this study, airborne and space borne data was used for qualitative evaluation of ground water resources and a critical appraisal of such study in combination with hydrogeological and hydrogeophysical techniques for ground water exploration and development in Keonjhar district of Orissa. The study area has been divided into various geomorphic units based on visual interpretation of Landsat TM false colour composite on. Digital image processing techniques such as principal component analysis and brightness index were used for generating classified outputs. The features like valley fills, pediments ete appeared clearly on the classified image.
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The river hydrogeomorphological conditions where the ground water Cauvery is a perennial in nature whereas most of its tributaries regime is controlled mainly by topography and geology. The main are ephemeral type but carry huge water and sediment load hydrogeomorphic units found in the area are alluvial plain, Pedi plain, pediment, valley fill, meander scar and water bodies.
Groundwater in this hard rock terrain with remnants of In the area under study the palaeochannels were identified palaeochannels is multivariate in nature because of its relation to and demarcated using geo-coded IRS-1C FCC False Colour topography, depth and extent of weathered material overlying bed Composite on , scale with the aid of Survey India rock and interconnection of joints and faults. The rock formations encountered here belongs to gneiss which covers I.
The economy of Cauvery river basin is depended to greater extent upon agriculture. The challenge is therefore to make the IV. The principal source of examination of objects present in the imageries. The procedure ground water recharge in the basin is through rainfall.
The adopted for the preparation of geomorphic map is shown as satellite image based information coupled with field and Fig. Interpretation of satellite images help in delineating the Satellite image Image Interpretation Ancillary data present and past landforms. Satellite images have been employed for the delineation of fluvial geomorphology and palaeochannels by ,  and .
A number of studies have also been carried out using remote sensing techniques for Yes Verify geomorphological and geological studies which include the No investigations of , ,  and . Transfer Interpreted data, Pre-field mapping, and II. Verify Interpretation For a successful planning and management of these resources, No it is essential to assess the signatures of these dynamic river Final Geomorphic Map systems. The present investigation is undertaken to prepare hydrogeomorphological map and their characteristics in parts of upper Cauvery river basin using satellite images on , Figure 1.
Steps adopted for the preparation of the map scale. Image consistent manner. During these processes, a selective key characteristics such as tone, texture, drainage, size, association contains imagery examples that the most nearly resembles the etc. An elimination key is an orderly Based on the nature of origin, occurrence and composition, arrangement in which the interpretation proceeds step by step these units have been classified as land forms of fluvial and from the general to the specific and leads to the elimination of denudational origin.
Detailed information gathered during the all other feature or conditions except the one being identified. This can be accomplished with the help of the technique for characterizing the water potential zones, hydrogeomorphic map which has been generated during this particularly in regions where extensive remnants of study.
Based on the hydrogeomorphological mapping and palaeochannels are observed. The area under investigation is collated data it was estimated that very good to good characterized by fluvial and denudational hydrogeomorphic groundwater prospects cover the dominant part of the area of units.
The hydrogeomorphological map is prepared by study, particularly which are nearer to the palaeochannels. In recent years extensive use of satellite along this belt. Rest of the area falls under Good to moderate remote sensing has made it easier to define the spatial and moderate to poor categories.
Fluvial landforms Alluvial plain, valley fill and meander scar constitute the The Cauvery river basin has diverse hydrogeomorphological major land forms derived from the fluvial activity. Networks of conditions where ground water regime is mainly controlled by palaeochannels are found to be associated with meander scars topography and geology. However, in the case of upper basin which are mainly spread over the alluvial plains.
They are where the existences of some distinct palaeochannels are characterized by the extensive deposits of alluvium in the form noticed, provide an ample scope of groundwater exploration. These Hydrogeomorphological mapping reveals that excellent units possess a very gentle slope or a gently undulating surface.
Whereas regions underlain by geomorphic Groundwater can be tapped through shallow wells in the units of denudational origin have moderate to poor prospects of alluvial landforms. The wells tapping the palaeochannels potential water resources. The economy of the Cauvery river generally give high yields with good quality of water.
In basin to a large extent depends agriculture where the water addition, a few natural and artificial tanks are found adjoining constitutes the key prerequisite, hence the water exploitation in to major valley fills which facilitate the surface water sources.
Remote sensing techniques can be applied effectively for preparing B. Denudational Landforms water resource management. Pediments and Pediplains constitute the main units of denudational landforms. Pediplains and pediments have  J. Krishnamurthy, N. Venkataesa Kumar, V. Jayraman, and M. Manivel, moderate and poor potentials of groundwater respectively.
Pediments  M. Mohammed Aslam and A. Whereas, the pediplains are characterized by a large  S. Palanivel, A. Ganesh and J. Saraf, and P. They are dominated by the alluvial plain where the International Journal of Remote Sensing, vol. In the deeper aquifer Subramanyan, K. Keshavasamy, K. Hanumantha Rao, and S. K groundwater occurs along the fractures and weathered zones. The yield of the  O. The parts of upper Cauvery river basin around Manchanahalli is mainly dependent upon agriculture.
Related Papers. By Mohammed Aslam and Balasubramanian A. Identification of palaeochannels around Cauvery river near Talakad, Karnataka using remote sensing data. By Mohammed Aslam. By Dr.
M C Manjunatha. By Anjali Gupta. Evaluation of hydrogeomorphological landforms and lineaments using GIS. By Leo cln. Download pdf. Remember me on this computer.
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Hydrogeomorphological mapping as a tool in groundwater exploration
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