GEOLOGY
GEOMORPHOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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quantity/ type of vegetation
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land use
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rock type
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all of the above
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Detailed explanation-1: -Hydrographs are affected by physical (size and shape of drainage basin; geology; vegetation) and human (land use change and water abstraction) factors.
Detailed explanation-2: -Flood influencing factors-(a) slope, (b) elevation, (c) curvature, (d) TWI, (e) SPI, (f) BUI, (g) Geology, (h) soil type, (i) land use land cover, (j) MFI, (k) proximity to natural drainage, (l) proximity to sewers and storm water drainage.
Detailed explanation-3: -The main factors affecting hydrograph shape are: 1) Drainage characteristics: basin area, basin shape, basin slope, soil type and land use, drainage density, and drainage network topology. Most changes in land use tend to increase the amount of runoff for a given storm (e.g., Chow et al., 1988; Singh, 1989; Bras, .
Detailed explanation-4: -Hydrograph: It is a continuous plot of instantaneous discharge (runoff) v/s time. It results from a combination of physiographic and meteorological conditions in a watershed and represents the integrated effects of climate, hydrologic losses, surface runoff, interflow, and groundwater flow.