Research Reports: Recent submissions

  • TR-11 : Study of parameters affecting base flow 
    Chachadi, A. G.; Mishra, G. C. (National Institute of Hydrology, 1986)
    Base flow computation plays an important role for assessment of lean flow in a river. airing passage of flood in a river the river stage rises which leads to recharging of the ...
  • TR-10 : Determination of reach transmissivity under various hydrologic boundary conditions 
    Mishra, G. C. (National Institute of Hydrology, 1986)
    Reach transmissivity for a canal or stream is a site specific constant which depends on canal geometry and aquifer boundary. The reach transmissivity, when multiplied with depth to water table position from the water ...
  • TR-9 : Some studies on plotting position formulae for Gumbell EV-1 distribution 
    Seth, S. M.; Goel, N. K. (National Institute of Hydrology, 1986)
    Probability plots are used in flood frequency analysis to fit the probability distributions to given flood series, to identify the outliers and to assess goodness of fit. If the objective of such a ...
  • TR-8 : Water balance of a reservoir 
    Jain, S. K. (National Institute of Hydrology, 1986)
    The water accounting of reservoirs is necessary for their proper management. The purpose of water balance of a reservoir is to estimate the various components representing inflows, outflows and change ...
  • TR-7 : Use of personal computer for preparation of reports 
    Chalisgaonkar, Deepa (National Institute of Hydrology, 1986)
    Today personal computer are becoming a popular tool for problem solving in diverse fields including scientific, business, medicine, schools, house management etc. because they need only normal commercial ...
  • TR-6 : Water quality modelling of rivers 
    Bhatia, K. K. S.; Jain, C. K. (National Institute of Hydrology, 1986)
    Water quality in flowing waters, is closely linked to the total water quality in the basin and hence it becomes imperative that water quality assessment and river basin planning ...
  • TR-5 : Ecosystem simulation submodels flora and fauna 
    Lohani, Vinay K. (National Institute of Hydrology, 1986)
    The present report forms a part of a series of reports which when combined together will result to description of development of a comprehensive watershed resources development ...
  • TR-4 : Statistical analysis of rainfall in Belgaum district, Karnataka 
    Seth, S. M.; Ramasastri, K. S.; Nirupama, P. (National Institute of Hydrology, 1986)
    Belgaum district in Karnataka has been experiencing drought continuously for the past few years. To study the phenomenon of low rainfall in the district, statistical analysis of ...
  • TR-3 : Storage in confined aquifer with flowing artesian well 
    Chandra, Satish; Mishra, G. C. (National Institute of Hydrology, 1986)
    Flowing wells are uncommon occurrences resulting from erratic geological process. The discharge of a flowing well depends on the difference between the elevations of the piezometric head in the aquifer ...
  • TR-2 : Suitability of power transformation based Gumbel EV-1 distribution for flood frequency analysis 
    Seth, S. M.; Singh, R. D.; Perumal, M. (National Institute of Hydrology, 1986)
    Estimation of a flood corresponding to a specified recurrence interval at a particular point on a river system is the most common problem for the engineers, scientists and others involved in design ...
  • TR-1 : Cause of negative outflow in muskingum method 
    Perumal, M. (National Institute of Hydrology, 1986)
    The Muskingum method is a widely used method for routing floods in rivers and channels. The applicability of the method has increased after Cunge related the parameters of the method, based on the conventional difference ...
  • TR-17 : Simple techniques for forecasting of monsoon rainfall and runoff and application to Mahanadi river at Hirakund 
    Goel, N. K. (National Institute of Hydrology, 1986)
    Monsoon period (June to Oct.) is a crucial period as nearly 90% of annual rainfall and runoff is received during this period in Indian subcontinent. The water resources planning activities e.g. . ...
  • TR-16 : Overland flow modelling 
    Palaniappan, A. B.; Ramasastri, K. S. (National Institute of Hydrology, 1986)
    Surface flow estimation is needed by planners and managers of water resource system. Most of the analysis are based on linear systems, wherein the watershed is assumed to be virgin. But, ...
  • TR-15 : Mathematical modelling of moving storms 
    Ramasastri, K. S. (National Institute of Hydrology, 1986)
    The magnitude of peak flood and the shape of a flood hydrograph depend not only on the magnitude of total storm rainfall depths but also on its distribution in space and with ...
  • TR-14 : Estimating evaporation losses from lakes and reservoirs 
    Sikka, A. K.; Goyal, S. K. (National Institute of Hydrology, 1986)
    Engineers, planners and all concerned with water resources require an estimate of evaporation losses from lakes and reservoirs for the efficient reservoir operation and the water balance ...
  • TR-13 : Development of a variable parameter simplified hydraulic flood routing model for rectangular channels 
    Perumal, M. (National Institute of Hydrology, 1986)
    A variable parameter simplified hydraulic method based on the approximation of the St. Venant's equations which describe the one dimensional flow in a channel or river has been developed for routing floods in channels ...
  • UM-10 : Muskingum cunge routing procedure 
    Seth, S. M.; Palaniappan, A. B. (National Institute of Hydrology, 1984)
    Experience and observations of flood flows in river show that the flood peak attenuates as it travels downstream. Although lateral flow and flow from tributaries may add up to the flow and lead ...
  • UM-9 : Model parameter evaluation using catchment characteristics 
    Seth, S. M.; Singh, R. D. (National Institute of Hydrology, 1984)
    In view of growing development of water resources in many projects, it becomes necessary to estimate discharge values for ungauged watersheds or sites within a region. The simplest way is to ...
  • UM-8 : Unit Hydrograph Derivation 
    Seth, S. M.; Singh, R. D. (National Institute of Hydrology, 1984)
    The unit hydrograph technique is a simple tool being used by most of the water resources development organisations for the estimation of flood flows. Although number of techniques are available ...
  • UM-7: Finite Element Aquifer Flow Model 
    Seethapathi, P. V. (National Institute of Hydrology, 1984)
    The purpose of this report is to describe how to model aquifer systems with AQUIFEM-1, a finite element aquifer flow model developed by Massachusetts Institute of Technology and implemented at the Institute for ...

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