Technical Notes: Recent submissions

  • TN-47 : Long term prediction of ground water regime in an internal draining basin 
    Kamal; Purandara (National Institute of Hydrology, 1988)
    An internally draining basin is one which is entirely without well defined natural streams or artificial surface drain. An example is the internal basins occupying the western Haryana and north eastern Rajasthan with ...
  • TN-46 : Assessment of groundwater in hard rock areas 
    Agarwal, Amit; Purandara, B. K. (National Institute of Hydrology, 1988)
    The present study is. an attempt to evaluate the ground water resources occurring in the hard rock regions. In this note the various disciplines involved in hydrogeology are discussed ...
  • TN-43 : Instrumentation for snow measurement 
    Singh, Pratap; Sharma, S. C. (National Institute of Hydrology, 1988)
    Reliable measurement of snowfall and estimation of snow cover is important for estimation of snowmelt. Unlike in the other countries where the areas of snowfall and accumulation ...
  • TN-40 : Metamorphism and remote sensing physics of snow 
    Patra, S. K.; Chhonkar, R. P. S. (National Institute of Hydrology, 1987)
    Snow and ice are significant elements of the world hydrological system, which occur subject to tremendous variation space. After the snow is deposited the particle shapes are modified ...
  • TN-39 : Resistivity and SP techniques for study of groundwater pollution 
    Goyal, V. C.; Nachiappan, Rm. P. (National Institute of Hydrology, 1987)
    Surface geoelectrical methods are now a days increasingly applied in solving a range of hydro geological problems involving both quantity and quality issues, particularly in the problem ...
  • TN-38 : Positive impacts of water resources on environment projects 
    Kumar, Sudhir; Sharma, Aditya (National Institute of Hydrology, 1988)
    In recent years the effects of water resources projects on environment is being propagated in a negative sense in news media, papers etc., which is affecting the water resources development. ...
  • TN-37 : Drainage in heavy soils 
    Soni, B.; Arora, Manohar (National Institute of Hydrology, 1987)
    Drainage of heavy land is largly governed by the fact that the hydraulic conductivity of the subsoil is generally too low to allow percolation of excess rain water to lower ...
  • TN-36 : Study of glacier melt and physics of glaciers 
    Singh, Pratap (National Institute of Hydrology, 1987)
    The existence of a Perennial ice mass depends on the interplay of accumulation and ablation processes. Over a time scale of a year or more on a glacier, accumulation processes dominate in the upper reaches ...
  • TN-45 : Estimation of evapotranspiration 
    Kumar, C. P.; Mishra, G. C. (National Institute of Hydrology, 1988)
    Next to rainfall, evapotranspiration is the most important term in the water balance of catchment areas. The subject of evapotranspiration, which includes evaporation of water from land and water ...
  • TN-35 : Instrumentation and measuring techniques for flow measurements in mountainous area 
    Verdhen, Anand (National Institute of Hydrology, 1987)
    Flow measurements in mountainous areas are comparatively difficult and need a special attention. Stream flow is the combined result of all the climatological and geographical ...
  • 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 ...
  • 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-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-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-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-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-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-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-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-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 ...

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