Research Reports: Recent submissions

  • 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 ...
  • 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-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-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 ...
  • UM-1/2011 : NIH_Re SyP reservoir systems package (Version — 1) 
    Goel, M. K.; Chalisgaonkar, Deepa (National Institute of Hydrology, 2011)
    Because of the high time and space variability of rainfall and uncertain nature of monsoon in our country, storage reservoirs form one of the most important components of a water resources development project. The principal ...
  • UM-1/2010 : Web based hydrology and water resources information system for India 
    Chalisgaonkar, Deepa; Rathore, D. S.; Jain, S. K. (National Institute of Hydrology, 2010)
    Water Resources management deals with technical, as well as socio-economic and ecological aspects and calls for an integrated approach and a comprehensive hydrological information system have become the key for efficient ...
  • UM-1/99-2000 : Learning package for hydrology 
    Chalisgaonkar, Deepa (National Institute of Hydrology, 1999)
    Computers have become an integral part of everyday life. In the new millennium everybody is should be computer literate as early as possible to keep pace with the developments taking place in the field of Information ...
  • UM-1/98-99 : Procedures for systematic processing of rainfall data 
    Mehta, Rama D.; Chalisgaonkar, Deepa (National Institute of Hydrology, 1998)
    Hydrometeorological analysis forms an important and integral part of hydrological research. One of the important parameters needed for this purpose is the rainfall which itself forms a part of the hydrological cycle. ...
  • UM-3/97-98 : Expert System for Unit Hydrograph Analysis 
    Sarkar, Archana; Singh, R. D. (National Institute of Hydrology, 1997)
    As the unit hydrographs establish a relationship between the excess rainfall and the direct runoff hydrograph, they are of immense value in the study of the hydrology of a catchment. They are of great use in (i) the ...
  • UM-2/97-98 : Software for hydrological data year book 
    Chalisgaonkar, Deepa; Mehta, Rama D. (National Institute of Hydrology, 1997)
    Automated data processing using high speed computers has immense potential for handling large volume of hydrologic data in a quick and economic way. In India, a large number of agencies are involved in collection ...

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