Study Of Reservoir Sedimentation Impactstudy Of Reservoir-PDF Free Download

STUDY OF RESERVOIR SEDIMENTATION IMPACTSTUDY OF RESERVOIR
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PARTICIPATING, C G AGENCIES, PROJECT LEADER, Water Resources Department. Govt of Chhattisgarh Raipur, PROJECT PARTNER, National Institute of Hydrology. Regional Centre Sagar M P, PROJECT DURATION 3 YEAR. TOTAL BUDGET ESTIMATE Rs 34 33 Lakh, WRD Govt of Chhattisgarh. p Rs 22 26 Lakh, NIH RC Sagar Rs 12 07 Lakh, NEED OF SCIENTIFIC STUDY ON RESERVOIR.
SEDIMENTATION, Soil water are two important natural resources. Nature takes 200 to 400 years to build up 1 cm of topsoil. About 12 000 M tones of soil lost every year by water action. Reduced capacities affect reservoir operation and irrigation efficiencies. Priority areas for conservation measures can be fixed on the basis of. soil loss assessment, Cropping pattern can be modified and yield can be increased. The results of the sediment modeling can be implemented on other. reservoirs and designing of new projects, Conservation measures suggested will reduce the incoming sediment. in to reservoir and increase the life of the reservoir and project. Dissemination of knowledge and findings will be able to develop the. awareness in farmers and other departments for soil conservation. OBJECTIVES OF THE STUDY, 1 Assessment of present status of reservoir storage by estimating revised. capacity using remote sensing approach, 2 Sediment modeling.
3 Assessment of soil loss from catchment area, 4 Prioritization of catchment area based on geomorphological characteristics. sediment yield and risk of erosion and soil loss from sub catchments. 5 Detection of change in land use and other environmental parameters. responsible for sedimentation in reservoir, 6 Development of management plan for catchment area with area specific soil. conservation measures for minimizing sedimentation in reservoir. STUDY AREA, Kodar reservoir is situated on river Kodar which is a tributary of Mahanadi. Location Tahsil Mahasamund Raipur, Latitude 21 11 50 N Longitude 82 10 40 E. Year of start of operation 1976 77, Dead Storage Level 286 04 m.
Full Reservoir Level 295, Gross Storage Capacity 160 35 MCM. Dead Storage Capacity 11 33 MCM, No of villages served 49. Head works consist of, Earthen dam 3 26 km long, Top width of dam 4 577 m. Waste weir 183 m long, Left Bank Canal LBC Length is 23 23 30. 30 km CCA is 16066 ha ha, Right Bank Canal RBC Length is 10 60 km CCA is 7406 ha.
Length of distributaries 67 75 km, Length of minors 278 km. Total culturable area 53679 acres 21740 ha, L B C 36436 acres. R B C 17243 acres, DRAINAGE MAP UP TO KODAR RESERVOIR. Catchment area 317 17 sq km, Mean rainfall 1433 1 mm. Topography, Hilly steep, Water spread FRL 8850 acres.
LAND USE MAP, Main land uses are, Forest on ridges. Agriculture, g cu tu e o, Waste land, Water bodies. SOIL TYPES IN CATCHMENT OF KODAR RESERVOIR, Soil is mainly fine. Susceptible to, excessive erosion, METHODOLOGY, 1 Preparation of inventory on hydrology meteorology geology land. use soil reservoir elevations and other details, Collection and analysis of rainfall reservoir details levels land use.
pattern drainage etc, Contours geology geomorphology hydrogeomorphology. type soil depth, depth infiltration rate, rate hydraulic conductivity etc. Procurement of remote sensing data on the basis of reservoir. 2 Instrumentation and collection of hydrological and sediment data. in different inflowing tributaries, Upgrading of gauge discharge and sediment sampling sites. Regular collection and monitoring of sediment samples. 3 Preparation of thematic maps on drainage soil type land use. contours villages road network geology in GIS environment. Preparation of base map of Kodar reservoir includes river network. and reservoir, Generation of thematic maps of catchment area contour soils. land use g geology, gy road and rail network villages g etc and.
development of Digital Elevation Model in GIS environment. METHODOLOGY, 4 Estimation of revised reservoir capacity using remote sensing. Determination of revised water spread areas at different elevations by. digital image analysis of remote sensing data, Estimation of revised capacity and computation of losses at different. 5 Application of sediment prediction model, Analysis of hydro meteorological discharge and sediment samples. Application of suitable sediment yield model, 6 Prioritization of catchment area based on soil loss using. geomorphological characteristics Universal Soil Loss Equation. USLE and sediment yield, Determination of present land uses in the catchment area from.
remote sensing g data and estimation of soil loss from various sub. catchments using USLE model, Determination geomorphological characteristics of sub catchments. Determination of sediment yield using suitable model from sub. catchments, Prioritize the sub catchments considering the present state of stress. and environmental degradation, METHODOLOGY, 7 Impact assessment analysis on sedimentation and runoff due to. degradation in the catchment, Suggestion for suitable measures of soil conservation in the. catchment area, Analysis of impact of suggested measures on sediment.
8 Preparation of catchment area treatment plan, Development of management plan for the catchment area consisting. of priority areas extent of erosion suitable conservation measures. and their effect on erosion from the catchment and catchment area. treatment plan, Water Resources Department Govt of Chhattisgarh. Hydrological and hydro meteorological data collection and preparation of. Upgradation of gauging and sediment sampling sites. Monitoring of hydrological and hydro meteorological data. Processing, i and d analysis, l i off hydrological. h d l i l and d hydro meteorological, h d t l i l data. statistical methods SWDES and HYMOS, Generation of various thematic maps using GIS.
Evaluation of soil properties, Development of catchment area treatment plan. Interim report preparation yearly and final report submission. Dissemination of knowledge g findings, g and application. pp of the management, field engineers and common people through preparation of Manual leaflets. booklets and by organizing workshops, National Institute of Hydrology. Hydrology Regional Centre, T h i l supportt for, Technical f monitoring.
it i off data, d t procurement, Assessment of present land use using remote sensing data and GIS for the. catchment area, Estimation of soil loss from the catchment. Assessment of sedimentation in the reservoir, Development of sediment prediction model. Prioritization of environmentally stressed areas in the catchment. Impact assessment analysis on sediment yield, TIME SCHEDULE. First Year, Data collection and p, preparation, epa ation of inventory.
Upgradation of gauging and sediment sampling sites. Monitoring of hydrological and hydro meteorological data. Processing and analysis of hydrological and hydro meteorological data. Generation of various thematic maps using GIS, Interim report preparation 1st year. Second Year, Monitoring of hydrological and hydro meteorological data. Processing and analysis of hydrological and hydro meteorological data. Evaluation of soil properties, Assessment of present land use using remote sensing data and GIS. Assessment of reservoir sedimentation, Estimation of soil loss from the catchment. study of reservoir sedimentation impactstudy of reservoir sedimentation impact assessment and development of catchment area treatment plan for kodar reservoir in chhattisgarh statechhattisgarh state submitted to hp ii cell central water commission new delhi by water resources department water resources department govt of chhattisgarh raipur

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