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Browsing Technical Notes by Issue Date

Browsing Technical Notes by Issue Date

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  • TN-2 : Evaluation of irrigation system losses for Upper Ganga Canal area 
    Seethapathi, P. V.; Jeyaseelan, A. T. (National Institute of Hydrology, 1981)
    Optimal utilisation of water resources requires a proper estimation of conveyance losses from the water conveyance system and the application losses. The losses from the canal conveyance are mainly due ...
  • TN-3 : Finite element ground water flow model (aquifer)-Upper Ganga Command Area 
    Seethapathi, P. V.; Roy, Gautam (National Institute of Hydrology, 1983)
    Computer models of ground water aquifers have become a commonly used tool for the analysis and evaluation of ground water schemes. A computer model allows the scientists to do a better job in an ...
  • TN-5 : Water balance and interaction of large depression storage with aquifer in Ghaggar Basin 
    Mishra, G. C.; Bhar, A. K. (National Institute of Hydrology, 1983)
    Interaction of depression storage and aquifer till recently was either neglected or taken as a residual of a water balance study. Understanding of the interaction of surface water body with the aquifer is ...
  • TN-4 : Unsteady flow to a large-diameter well influence by a river and a no flow boundary 
    Mishra, G. C.; Chachadi, A. G. (National Institute of Hydrology, 1983)
    Large-diameter wells are extensively used in many parts of the world. The cheapness and simplicity of construction and operation of these wells are often the main reasons for their use. Besides, large diameter wells ...
  • TN-1 : Water availability study for river "Ganga" (Bhimgoda to Narora) 
    Seethapathi, P. V.; Dhason, S. R. B. (National Institute of Hydrology, 1983)
    Water availability of the Upper Ganga basin between Bhimgoda and Narora has been analysed, with the existing diversion works and those under construction in the Uttar Pradesh (U.P.) State. The analysis is ...
  • TN-9 : Unsteady flow to a multiaquifer flowing well 
    Mishra, G. C. (National Institute of Hydrology, 1984)
    Using discrete kernel technique, analytical solution has been obtained for unsteady flow to a well tapping any number of aquifers which are separated by aquicludes and have different initial hydraulic heads. ...
  • TN-13 : Regional aquifer simulation 
    Seethapathi, P. V. (National Institute of Hydrology, 1984)
    Over the past two decades ground water has become topic of discussion and investigation and as a result the knowledge and understanding of ground water conditions have radically improved. ...
  • TN-6 : Estimation of seepage from canal using tracer technique 
    Mishra, G. C. (National Institute of Hydrology, 1984)
    Loss of water due to seepage from irrigation canals constitutes a substantial percentage of the total usable water. By the time the water reaches the field, it has been estimated that the seepage losses are of the ...
  • TN-8 : Study of reach transmissivity for stream aquifer interaction 
    Mishra, G. C. (National Institute of Hydrology, 1984)
    A river comprising boundary of flow domain is often encountered in regional groundwater flow modelling. When a river fully penetrates an aquifer and has considerable stream discharge, the river ...
  • TN-12 : Methodology for estimation of design storm 
    Ramasastri, K. S.; Seth, S. M. (National Institute of Hydrology, 1984)
    Estimation of 'Design Flood is a first and vital step in the design process for a large range of water resources development works. The design flood is generally derived from the design storm ...
  • TN-7 : Study of depth-area-duration and depth-duration characteristics 
    Seth, S. M.; Ramasastri, K. S.; Singh, Pratap (National Institute of Hydrology, 1984)
    Some of the extreme storms in the contiguous areas of Saurashtra and Rajasthan forming part of the arid and semi-arid belt in India were analysed by the depth-area-duration and depth-duration ...
  • TN-10 : Artificial recharge of groundwater 
    Lohani, Vinay K.; Seethapathi, P. V. (National Institute of Hydrology, 1984)
    Development of the groundwater resources in various parts of the world has been increasing in recent years as development of surface water resources approaches the point of full potential. The ...
  • TN-11 : Water requirement of crops 
    Lohani, Vinay K.; Seethapathi, P. V. (National Institute of Hydrology, 1984)
    It has become essential to make effective use of the available water resources allocated for agricultural purposes. Besides better methods of land preparation, proper management of irrigation ...
  • TN-29 : Estimation of evapotranspiration under variable soil moisture situation 
    Soni, B. (National Institute of Hydrology, 1985)
    Evapotranspiration (ET) is the amount of water transpired by the plant and evaporated from the soil surface. ET from vegetated surface is a function of several process like radiation exchanges, vapour transport ...
  • TN-16 : System specific programme inputs for documented Programmes 
    Karawade, Deepa (National Institute of Hydrology, 1985)
    FORTRAN is now used on all major computer systems. Major versions in vogue are FORTRAN, FORTRAN II and FORTRAN IV. Each new version made a few changes in the basic instruction ...
  • TN-22 : Data requirements and data preparation for DAMBRK programme 
    Chandra, Satish; Perumal, M. (National Institute of Hydrology, 1985)
    Planning and design requirements for a wide range of projects, such as emergency preparedness and location of nuclear power plants, have generated widespread interest in dam break floods analysis. Although much ...
  • TN-30 : Design and performance of large diameter wells in hard rock areas 
    Chachadi, A. G.; Mishra, G. C. (National Institute of Hydrology, 1985)
    Unsteady flow to a large-diameter well in a confined aquifer has been analysed by discrete kernel approach for the case where the pumping rate is a quadratic function of drawdown. The equation assumed to hold good between ...
  • TN-14 : Flow towards well with storage in leaky aquifers 
    Seethapathi, P. V. (National Institute of Hydrology, 1985)
    The formulation of strategy for the optimal management of groundwater demands a knowledge of the relationship between the pump ages in the wells to the drawdowns in the aquifers both in spatial ...
  • TN-28 : Study of soil moisture using neutron probe 
    Chand, Ramesh; Seth, S. M.; Singh, R. D. (National Institute of Hydrology, 1985)
    Soil moisture studies provide potential information in the field cf agriculture, meteorology and hydrology. In the field of agriculture, Information on soil moisture is needed for many ...
  • TR-20 : Identification of hydroenvironmental indices 
    Gaindhar, Vipin; Sinha, Asha; Karawade, Deepa; Nanda, N. K. (National Institute of Hydrology, 1985)
    This piece of work is aimed at design and implementation of a Management Information System Package for the employees of National Institute of Hydrology, Roorkee. This utility package computerizes ...

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