http://117.252.14.250:8080/jspui/handle/123456789/6860 2026-04-05T17:37:52Z 2026-04-05T17:37:52Z National Institute of Hydrology http://117.252.14.250:8080/jspui/handle/123456789/6869 2022-06-15T21:41:26Z 2006-01-01T00:00:00Z

Contents National Institute of Hydrology

2006-01-01T00:00:00Z Behera, G. Bhanumurthy, V. Raju, P. V. Jonna, S. Rao, V. Venkateshwar Rao, G. S. Murthy, C. S. Sankar, E. Siva Hakeem, K. Abdul Rao, K. H. V. Durga http://117.252.14.250:8080/jspui/handle/123456789/6868 2023-04-19T20:14:18Z 2006-01-01T00:00:00Z

1-Role of Remote Sensing in Water Management Under Extreme Events of Droughts and Floods. Behera, G.; Bhanumurthy, V.; Raju, P. V.; Jonna, S.; Rao, V. Venkateshwar; Rao, G. S.; Murthy, C. S.; Sankar, E. Siva; Hakeem, K. Abdul; Rao, K. H. V. Durga Remote sensing is a reliable and cost-effective tool for managing extreme water conditions such as floods and droughts. The timeliness of satellite data is critical in flood management, rescue operations, damage assessment, planning the flood plains and to formulate long term strategies. In conditions of water scarcity, satellite data are useful for monitoring and assessing the drought severity and consequent impact on agricultural production. It can be used to forecast reservoirs inflows, which is helpful in initiating advance measures to cope with water scarcity. The changes in live storage capacities due to sedimentation can also be captured through satellite data, facilitating realistic assessment of water storage and efficient storage reservoir management under extreme conditions.

2006-01-01T00:00:00Z Ramesh, K. J. Reddy, K. Mruthyunjaya Nagaraju, A. Ramakrishna Ramanamurthy, M. V. Rao, G. Prasad Ramesh, Y. http://117.252.14.250:8080/jspui/handle/123456789/6867 2022-06-15T21:35:11Z 2006-01-01T00:00:00Z

2-Framework Development of Hydrometeorological Observational Network and Flood Hazard Mitigation Modelling Systems. Ramesh, K. J.; Reddy, K. Mruthyunjaya; Nagaraju, A. Ramakrishna; Ramanamurthy, M. V.; Rao, G. Prasad; Ramesh, Y. An appropriate real-time hydrometeorological observational network is designed and established for developing a full-scale hazard mitigation modeling system in respect of floods covering 24 rivers with an objective to develop an enhanced technical capacity to deal with the floods in future using all available technologies and modeling tools. The framework includes set of hydrological and hydrodynamic models, storm surge inundation assessment along with suitable Geographical Information System (GIS) interfacing for facilitating the quantification and spatial description of the impact offloading (in terms of river and surge inundation) with a sufficient lead-time so as to plan for effective relief routing plans/rehabilitation strategies. Performance evaluation of the hazard mitigation modeling systems for the past flood events is presented in this study.

2006-01-01T00:00:00Z Sharda, V. N. Ojasvi, P. R. http://117.252.14.250:8080/jspui/handle/123456789/6866 2022-06-15T21:30:25Z 2006-01-01T00:00:00Z

3-Moderation of Floods and Mitigation of Droughts through Integrated Watershed Management . Sharda, V. N.; Ojasvi, P. R. Frequent occurrence of floods and droughts in the country is a cause of serious concern for the planners, policy makers, hydrologists, conservationists and environmentalists. Spatial and temporal distribution of rainfall coupled with erratic and extreme events results in recurring floods and droughts affecting large areas and populations and inflicting huge monetary losses. To overcome this gigantic problem, management of water at micro-level is essential which can only be accomplished by following the concept of integrated watershed management. Government of India has launched massive watershed development programmes in the country through its key ministries and funding support from international agencies. Experiences presented in this paper clearly demonstrate that efficient management of natural resources following watershed approach not only maximize productivity on sustainable basis but also help in moderating floods in downstream reaches and mitigate the impact of droughts during rain deficit years. The flow regimes are altered and redistributed over the year with reduction of peak flows and monsoonal runoff while improving perenniality of streams during the lean periods. However, community participation during the planning and implementation of these programmes should be ensured to sustain the tangible and intangible benefits during the withdrawal phase. A systematic approach is needed to critically evaluate the long-term impact of watershed development programmes on changing hydrological behaviour of watersheds at micro-level and macro-level in different agro-climatic regions of the country.

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