Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Titre : Management of water resources in India A study on the role of hydrological information system HIS

Auteur : Ranjan, Hridaya J

Université de soutenance : Acharya Nagarjuna University

Grade : Doctor of Philosophy (PhD) 2017

Résumé
Life cannot exist without water. Water is a prime natural resource and a basic human need. Water operates in and through the hydrologic cycle continuously moving, changing form and getting recycled all the while for being available for direct use. The real problem with water therefore, is that of availability and accessibility. Increase in the number of water users causes ’water scarcity’ which is quantitative ; pollution of existing water results in ’water stress’ which is qualitative. External threat like climate change also causes ’water risk’, affecting the availability of water both quantitatively and qualitatively. Water risk is an issue about which everybody should be really concerned about. _ To avert ’water crisis’ as at present and in the future, proper management of the water resources is only the solution. But the science of water, called hydrology, is very complex, since water has many forms, goes through many processes and is influenced by many drivers. Therefore, for effective management of water resources, it is essential to have full and systematic information about water that is reliable, comprehensive and scientific. Such water information system is popularly called as ’Hydrological Information System (HIS)’. Effectiveness of management of water resources depends on the quality of ’HIS’. For optimizing the quality of ’HIS’, what is required is, periodic identification of further ’Hydrological information needs (HIN)’ and incorporation of those ’HIN’ into the HIS, thereby ensuring that the utility of ’HIS’ in the management of water resources gets perpetually improved. The world in which we live is experiencing all the water related dangers such as scarcity, stress and risk. Increasing population and urbanization world over, are the chief among several other reasons for this situation. Surprisingly, imprudent management is also a reason for the existing hydrological poverty across the globe.
The good news about water is that it is the most manageable natural resource. For this reason, throughout human history water has always prompted human beings to harness it. That is why, any study on water is always quite exciting, extremely essential and highly rewarding. Of all times in history, the study of water is the most relevant to the present times, when we are witnessing the climate affecting temperatures of the globe leading to changes in precipitation and evaporation. Extreme events like storms, tsunamis, floods and drought are also causing strain on the water resources.

Présentation et version intégrale (Shodhganga)