cover image: Hydro Electric Survey of India. Preliminary Chapter on the Water Power Resources of India

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Hydro Electric Survey of India. Preliminary Chapter on the Water Power Resources of India

1919

But in the majority of cases the extent to which a scheme is capable of economic develoment can only be determined after a careful examination of the catchment area and of the site of the proposed works ; after a carful and prolonged investigation of the rainfall and run-off records and especially in an undeveloped country after an' investigation of the mineral and forestal or agricultural [...] " It has usually been understood that the usefulness of water supply depends on the possibility of maintaining its uniformity over the whole period of the year and that the maximum useful power is strictly limited by the minimum power which by the aid of any suggested storage system will be available towards the end of the longest probable period of drought. [...] The actual run-off from the catchment area is the all important factor and the ratio of run-off to rainfall varies with the physical charateristics of the area the vegetation and the climate so that rainfall gaugings cannot be substituted for the more laborious and costly collection of continuous records of river levels combined with frequent gaugings of flow. [...] Correspondence and the records of the Patent Offices show that there is a widespread idea that much power is going to waste in the tides and in the slow moving rivers of the plains ;. this is true but in the upshot it is commercial and not engineering considerations that must necessarily prevail and these are against the utilization of such sources of power. [...] Where rivers are fed from the highest mountains the precipitation is largely in the form of snow and the immediate run-off is small ; the melting of the snow from about April onwards coincides with the driest season and thus tends both directly to equalize the flow of the rivers and - also to feed distant springs.
development
Pages
126
Published in
India
SARF Document ID
sarf.141696
Segment Pages Author Actions
Frontmatter
i-vi J.W. Meares view
Introduction
i-viii unknown view
Chapter I — Water Power in General
1-5 unknown view
Chapter II — Weather and Water
6-9 unknown view
Chapter III — Localites and Surveys
10-12 unknown view
Chapter IV — Power and its Uses
13-25 unknown view
Chapter V — Control of Water Pawer
26-32 unknown view
Chapter VI — the Water Power Resources of India
33-48 unknown view
Chapter VII — Future Work of the Hydro Electric Survey
49-56 J.W. Meares view
Appendix I
57-61 unknown view
Appendix II
62-62 unknown view
Appendix III
63-64 unknown view
Appendix IV
65-65 unknown view
Appendix v
66-68 unknown view
Appendix VI
69-70 unknown view
Appendix VII
71-73 unknown view
Appendix VIII
74-75 unknown view
Appendix IX
76-83 unknown view
Appendix X
84-88 unknown view
Appendix XI
89-93 unknown view
Appendix XII
94-94 unknown view
Appendix XIII
95-99 unknown view
Appendix IV
100-105 unknown view
Addenda to List of Sites
106-108 unknown view

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