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Browsing Technical Notes by Title

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  • 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-15 : Seepage from water bodies 
    Bhargava, D. N.; Chandra, Satish; Mishra, G. C. (National Institute of Hydrology, 1985)
    A mathematical model for seepage studies from two parallel canals has been developed and interference of two parallel canals is studied. One of the canals is situated on ...
  • 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-17 : Drought analysis using soil moisture simulation approach 
    Sikka, A. K.; Mishra, G. C. (National Institute of Hydrology, 1985)
    A number of drought indices have been developed in past. Most of these indices appear to be adhoc and consider either rainfall alone or take some account of soil water storage and loss of water from this storage ...
  • TN-18 : Parameterization of hydrogeological factors in groundwater study 
    Mishra, G. C.; Chachadi, A. G. (National Institute of Hydrology, 1985)
    Walton has presented a relationship of transmissivity with specific capacity for wells having negligible storage. These graphs are used for estimation of transmissivity provided storage coefficient ...
  • 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-21 : Data aquisition system 
    Seth, S. M.; Goyal, V. C. (National Institute of Hydrology, 1985)
    Data acquisition systems are used for collection, pre-processing and storage of signals. They provide an accurate, real-time analysis along with data collection and transmission for ...
  • 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-24 : Exchange of flow between river and aquifer system 
    Mishra, G. C. (National Institute of Hydrology, 1986)
    A mathematical ground water flow model has been developed to predict the exchange of flow between a partially penetrating river and a homogeneous infinite aquifer. The model considers the changes in river ...
  • TN-25 : Guidelines for sample survey for minor irrigation works 
    Singh, Sushil K.; Seethapathi, P. V. (National Institute of Hydrology, 1986)
    Water balance study means the book keeping of water of a region/basin in relation to the components of entire hydrologic cycle or part of it, done over a specified period. It is an effective tool ...
  • TN-26 : Watershed Resources development model 
    Lohani, Vinay K. (National Institute of Hydrology, 1985)
    The present report describes a concept involving management of natural resources of the watershed including land, water, flora and fauna for their sustained yields. The extent of watershed resources and the problems ...
  • TN-27 : Seepage from parallel canals 
    Bhargava, D. N.; Chandra, Satish; Mishra, G. C. (National Institute of Hydrology, 1985)
    The evolution of water table due to recharge from a strip source has been analysed. The analysis has been extended to find the evolution of water table due to seepage from two parallel canals. It ...
  • 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 ...
  • 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-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-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-31 : Application of resistivity method for moisture estimation in top soil layer 
    Goyal, V. C.; Seth, S. M. (National Institute of Hydrology, 1985)
    Use of resistivity method is well established in ground water exploration. Studies of unsaturated zone are important because they can provide information about soil moisture content ...
  • TN-32 : Evaluation of component of water balance of a river reach 
    Palaniappan, A. B.; Ramasastri, K. S. (National Institute of Hydrology, 1987)
    The water balance has been used for computing seasonal and geographic patterns of irrigation demand, soil moisture stress , prediction of stream flow and water tables elevations. Although, ...
  • TN-33 : Hydrologic models for mountainous areas 
    Ramasastri, K. S.; Verdhan, Anand; Kumar, Avadhesh (National Institute of Hydrology, 1987)
    Estimation of runoff in Mountainous areas is required for the design, development and management of Water Resources Projects. Since the mountainous catchments have a complicated hydrological behaviour, the ...
  • TN-34 : Thermal stratification in reservoirs 
    Bhatia, K. K. S. (National Institute of Hydrology, 1987)
    A lake's vertical thermal regime has dual significance to the water quality modeller. Temperature has direct importance as it influences the rates of chemical and bio chemical ...

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