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Rao, Krishna
- Morphometric Analysis of Nanjangud Taluk, Mysore District, Karnataka, India Using GIS Techniques
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Authors
Affiliations
1 Department of Studies in Geology, University of Mysore, Manasagangothri, Mysore-570 006, Karnataka, IN
2 Department of Studies in Geology, University of Bangalore, Bangalore-570 001, Karnataka, IN
1 Department of Studies in Geology, University of Mysore, Manasagangothri, Mysore-570 006, Karnataka, IN
2 Department of Studies in Geology, University of Bangalore, Bangalore-570 001, Karnataka, IN
Source
Nature Environment and Pollution Technology, Vol 11, No 1 (2012), Pagination: 129-134Abstract
An attempt has been made to study drainage morphometry and its influence on hydrology of Nanjanagud taluk. For detailed study, data for preparing DEM, aspect grid and slope maps, geographic information system (GIS) was used in evaluation of linear, areal and relief aspects of morphometric parameters. The study reveals that the elongated shape of the area is mainly due to guiding effect of thrusting and faulting. In all 41 sub-basins in Nanjangud taluk have been selected for the study. Quantitative morphometric analysis has been carried out for linear, relief and aerial aspects for all the sub-basins. The streams up to fourth order can be seen in all the sub-basins. The morphometric analysis reveals that Hullahalli sub-basin has lower value of drainage density, stream frequency, elongation ratio, relief ratio and infiltration number indicating highly permeable sub-soil materials under dense vegetation cover. Except Hullahalli sub-basin, all the other sub-basins show fractured, resistant, permeable rocks and drainage network seems to be not affected by tectonic disturbances.Keywords
Morphometric Analysis, Drainage Characteristics, Nanjanagud Taluk, Sub-Basins, GIS.- Studies on Land Use, Land Cover and Soil Texture of Harve Watershed, Chamarajanagar District, Karnataka, Using Remote Sensing and GIS Techniques
Abstract Views :131 |
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Authors
D. Nagaraju
1,
C. Papanna
1,
G. Mahadevaswamy
1,
H. T. Lakshmikanth Raju
1,
P. C. Nagesh
2,
Krishna Rao
2
Affiliations
1 Department of Studies in Geology, University of Mysore, Manasagangotri, Mysore-570 006, Karnataka, IN
2 Department of Geology, Bangalore University, Jnanabharathi, Bangalore-560 056, Karnataka, IN
1 Department of Studies in Geology, University of Mysore, Manasagangotri, Mysore-570 006, Karnataka, IN
2 Department of Geology, Bangalore University, Jnanabharathi, Bangalore-560 056, Karnataka, IN
Source
Nature Environment and Pollution Technology, Vol 10, No 2 (2011), Pagination: 289-292Abstract
Land use, land cover, and soil texture studies are important for watershed characteristics. Most of the hydrological phenomenon depend upon these characteristics. Remote sensing is a powerful spin-off from space exploitation, and it has emerged as a tool for watershed characteristics, planning and management in recent times. The integrated approach of remote sensing and GIS has capabilities of data explanation, storage, retrieval and manipulation, and plays an important role for systematic analysis of various lithological, geomorphological, soil hydrological and land use characterization following the synoptic and multi-spectral coverage of terrain. In the present study, IRS-IB, 26 January 2004 satellite data have been analyzed in conjunction with topographical data of Harve watershed for land use, land cover and soil texture studies of a watershed under the GIS environment.Keywords
Remote Sensing, GIS, Storage Retrieval, Harve Watershed.- Hydrogeochemical Evaluation of Kuderu Microwatershed of Kabini River Basin, Karnataka, India
Abstract Views :139 |
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Authors
D. Nagaraju
1,
C. Papanna
1,
G. Mahadevaswamy
1,
H. T. Lakshmikanth Raju
1,
P. C. Nagesh
2,
Krishna Rao
2
Affiliations
1 Department of Studies in Geology, University of Mysore, Manasagangotri, Mysore-570 006, Karnataka, IN
2 Department of Geology, Bangalore University, Jnanabharathi, Bangalore-560 056, Karnataka, IN
1 Department of Studies in Geology, University of Mysore, Manasagangotri, Mysore-570 006, Karnataka, IN
2 Department of Geology, Bangalore University, Jnanabharathi, Bangalore-560 056, Karnataka, IN
Source
Nature Environment and Pollution Technology, Vol 10, No 1 (2011), Pagination: 95-98Abstract
Microwatershed covering Kuderu, Dasanur and other adjoining villages was selected for a detailed accounting of the groundwater budget. Groundwater is the main source of water for agriculture and livestock. The net annual recharge available for minor irrigation is estimated at 438 ham thereby reaching grey category. Further exploration without recharging the groundwater body needs vigilance. Construction of artificial recharge structures are suggested. The quality of water is generally suited for drinking and irrigation purposes.Keywords
Kabini River Basin, Groundwater Quality, Artificial Recharge.- Groundwater Development Studies Using Remote Sensing and GIS Techniques in Drought Prone Area of Chamarajanagar District, Karnataka, India
Abstract Views :116 |
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Authors
D. Nagaraju
1,
G. Mahadevaswamy
1,
S. Siddalingamurthy
1,
P. C. Nagesh
1,
Krishna Rao
2,
G. V. Pankaja
3
Affiliations
1 Department of Studies in Geology, University of Mysore, Manasagangothri, Mysore-570 006, Karnataka, IN
2 Department of Studies in Geology, University of Bangalore, Bangalore, Karnataka, IN
3 Department of Mathematics, N.I.E. College, Mysore, Karnataka, IN
1 Department of Studies in Geology, University of Mysore, Manasagangothri, Mysore-570 006, Karnataka, IN
2 Department of Studies in Geology, University of Bangalore, Bangalore, Karnataka, IN
3 Department of Mathematics, N.I.E. College, Mysore, Karnataka, IN
Source
Nature Environment and Pollution Technology, Vol 10, No 4 (2011), Pagination: 661-664Abstract
While water supply is a crucial issue, there is an evidence to suggest that the quality of groundwater supplies is also under threat in recent years. This is the result of salinisation and increasing trend of groundwater exploitation and heterogeneous terrain condition of hard rock area posing major problem in groundwater exploration. Groundwater exploitation has been on the rise in Chamarajanagar district, Karnataka. Competing demands have grown in face of perennial water shortages, a situation which has been exaggerated by drought condition in the past decade. Integrated and environmentally sustainable development strategies have become inevitable for micro-level planning these days. Geographic Information System (GIS) was used for spatial analysis and integration. Geomedia Professional 5.1 GIS software was adopted in this process. The ranked maps were spatially integrated and the district area was divided into very good, good, moderate and low groundwater potential zones. Aquifer thickness map was generated by intersection of well inventory, sub-surface geological, geophysical and groundwater potential data. Based on aquifer thickness, aquifer was categorized into deep aquifer, shallow aquifer and moderately deep aquifer. By combining groundwater potential zone and aquifer thickness, the watershed area was reclassified into eleven priority zones, recommended for different agricultural practices, groundwater development and management of aquifer recharge.Keywords
Groundwater Development, Remote Sensing, GIS, Salinization, Drought Prone Area.- Assessment Studies ofGroundwater Recharge in Nagamangala Taluk, Mandya District, Karnataka Using Remote Sensing and GIS Techniques
Abstract Views :141 |
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Authors
Affiliations
1 Deptt. of Studies in Geology, University of Mysore, Manasagangotri, Mysore-570 006, Karnataka, IN
1 Deptt. of Studies in Geology, University of Mysore, Manasagangotri, Mysore-570 006, Karnataka, IN