NIH Digital Repository: Recent submissions

  • SA-2 : Reservoir Operation Studies 
    Yoganarsimhan, G. N. (National Institute of Hydrology, 1983)
    This state-of-art report deals with problems associated with operation of a single purpose/multi-purpose reservoir. Starting with heuristic procedures of reservoir operation, the general ...
  • SA-1 : Time series modelling 
    Kumar, Arun (National Institute of Hydrology, 1982)
    Hydrologic variables might vary in space, as well as time and are represented by either continuous or discrete series. Much of the statistical methodology is concerned with models in which ...
  • RN-49 : Overland flow in mountainous areas 
    Kumar, Avadhesh; Ramasastri, K. S. (National Institute of Hydrology, 1986)
    Runoff in mountainous regions results from rainfall, snowmelt and glacier-melt. The different components of runoff are generally considered to be surface run off, sub-surface runoff and ...
  • RN-48 : Regional approaches for flood estimation in mountainous area 
    Kumar, Avadhesh; Ramasastri, K. S. (National Institute of Hydrology, 1986)
    Floods in mountainous areas are the catchment's response due to precipitation and are influenced not only by catchment and stream characteristics but also storm characteristics and vegetal and land use changes. More ...
  • RN-46 : Snowmelt processes 
    Singh, Pratap (National Institute of Hydrology, 1986)
    The accurate forecasting of the volume of snowmelt runoff likely to occur is of great importance for water resources management, especially to those responsible for operation of multipurpose reservoirs. [he ...
  • RN-45 : Remote sensing application to sedimentation studies 
    Bhar, A.K. (National Institute of Hydrology, 1986)
    Monitoring of sediment load in water bodies is an integrated part of any water resources management programme. After the advent of satellite age, remote sensing technique with its unique synoptic and repetitive ...
  • RN-44 : Rainfall simulator studies 
    Kumar, Avadhesh; Palaniappan, A. B.; Ramasastri, K. S. (National Institute of Hydrology, 1987)
    Hydrologic analysis of watershed response to rainfall carried, out using lumped models, or mathematical models are quite common. These models involve certain parameters determined from the historical data and are ...
  • RN-42 : Procedure for hydrological network design 
    Seth, S. M.; Kumar, Rakesh (National Institute of Hydrology, 1986)
    Network design enters into most aspects of hydrology. Meteorological and hydrological data characteristics of watersheds, provide the basis for all water studies and determine the major ...
  • RN-41 : Analysis of low flow to investigate drought characteristics and plan water use management 
    Verma, P. K.; Sikka, A. K. (National Institute of Hydrology, 1986)
    In spite of the lack of a unified definition of drought among the community of scientific professionals, it is basically agreed to be a situation of prolonged water deficit for given use, caused due to ...
  • RN-40 : Comprehensive review of drought indices 
    Sikka, A. K. (National Institute of Hydrology, 1986)
    Scores of drought definitions are available in the literature developed by a variety of disciplines because it affects so many economic and social sectors. Drought holds different connotations to different people. The ...
  • RN-39 : Remote sensing applications for flood inundation studies 
    Bhar, A.K. (National Institute of Hydrology, 1986)
    Mankind is beset with flood problems from the very ancient time. Fury of flood leaves its crippling effect on the economy. Flood inundation is one of the basic data need to understand, combat ...
  • RN-38 : Measurement of snow and estimation of snow cover 
    Singh, Pratap (National Institute of Hydrology, 1986)
    The rivers draining out of the Himalayan region derive a major portion runoff from snow and ice melt. For runoff forecasting, irrigation planning, supply of drinking water and industrial use etc. reliable and ...
  • RN-37 : Hydrological aspects of droughts 
    Singh, R. D. (National Institute of Hydrology, 1986)
    Drought forms one extreme end of the hydrologic cycle. It represents a period of abnormally dry weather sufficiently prolonged for the lack of precipitation to cause a serious hydrological imbalance and connotations of ...
  • RN-36 : Vegetation management for increased water yield 
    Sikka, A. K.; Lohani, Vinay K. (National Institute of Hydrology, 1985)
    Studies done in India and elsewhere have indicated that the vegetation management practices have a great potential in increasing water yield from a watershed. The vegetation management practices include ...
  • 26-Aspects of reservoirs water quality : Monitoring and assessment of pollution level 
    Mendhe, P. P.; Garibdas, C. D.; Dange, M. M. (National Institute of Hydrology, 2008)
    The water quality of lakes and reservoirs is an important subject with respect to environmental pollution and community development. Lakes and reservoirs, being convenient water bodies of surface water are vulnerable to ...
  • 27-Evaluation of water quality of religious tanks: A case study of Ghodawadi tank 
    Kumari, Veena; Lal, Bipin Bihari (National Institute of Hydrology, 2008)
    Wetlands are regarded as direct or indirect life supporting systems for millions of living beings. Human civilizations have started on the bank of major rivers. Based on the need, many lakes and tanks have been made by ...
  • 28-Seasonal changes In Zooplankton community thriving in wastewater - Fed Fish Ponds 
    Goswami, Abhishek Roy; Chattopadhyay, B.; Datta, Siddhartha; Mukhopadhyay, S. K. (National Institute of Hydrology, 2008)
    East Calcutta Wetlands, Ramsar site No 1208, receive domestic and industrial wastes of Kolkata city both in solid and liquid forms. In the wetlands several small and large ponds are excavated which receive the raw wastewater ...
  • 29-Physico-chemical study of Panzara Dam, Maharashtra 
    Desai, Jigna; Nandre, Yogesh; Tank, S. K. (National Institute of Hydrology, 2008)
    In this study, water quality of the Panzara down has been studied based on the physico-chemical and bacteriological parameters. The results have been compared with the norms of WHO. The results of microbial analysis has ...
  • 30-Methyl Mercury: Sources, Impacts and Effects on Lake Water Quality 
    Ladwani, Krishna; Ladwani, Kiran; Ramteke, D. S.; Wate, S. R. (National Institute of Hydrology, 2008)
    Mercury is both a global pollutant and a contaminant that is to a potentially toxic species (Methyl mercury) under the natural condition found in the environment. Its compounds are present as the trace contaminants in ...
  • 31-Potential effects of phosphorus on lake water quality 
    Ladwani, Kiran; Ladwani, Krishna; Ramteke, D. S.; Wate, S. R. (National Institute of Hydrology, 2008)
    Pollution resulting from increased human activities is threating lakes. Its effects have been characterized by serious eutrophication. A steady increase of phosphorus loading is most important factor of lake eutrophication. ...