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Fan and fern shaped catchment

Webd) Fan shaped catchments give greater runoff because tributaries are nearly of same size and hence time of concentration of runoff is nearly same. On the contrary, discharges … WebThe catchment areas are classified depending upon the shape as follows (2.5): a. Fan shape. b. Fern leaf-type or elongated. a. Fan Shape: The shape of a catchment may …

Institute of Technology (Polytechnic), Navi Mumbai

WebQualitatively, shapes are described as rectangular, square, fern, fan, parallel etc. Fan shaped-peak occurs early because of shorter time of concentration, narrow hydrograph … Web7. 4.SHAPE AND SIZE OF CATCHMENT AREA Large area - more runoff Fan shaped catchment - more runoff Fern shaped catchment - less runoff 5. VEGETATION IN THE CATCHMENT AREA Great extent of vegetation cover- more runoff 6. GEOLOGICAL FEATURES OF THE AREA Hard surface- more runoff Area with cracks, flanks - less … light weights or heavy weights https://oakwoodfsg.com

Runoff: Meaning, Types and Factors Rainfall Geography

WebIn the case of fern-shaped and fan-shaped catchments, a unit storm gives rise to two distinct types of hydrographs. They are illustrated in Figure 1.7. They are illustrated in Figure 1.7. TIME HYDROGRAPHS Figure 1.7 The fern-shaped catchment gives a … WebA fan-shaped catchment (Fig. 2.1) produces larger runoff compared to that produced by fern-shaped catchment. Similarly, a catchment with vegetal cover yields lesser runoff … WebFan shaped catchment gives greater runoff 4) Characteristics of catchment : a. Rocky strata – heavy runoff b. Compactive strata - heavy runoff c. Sandy strata – reduced runoff d. if more area of catchment is cultivated ,surface runoff will be less. e. Presence of vegetation covers reduces the runoff during smaller storm. light-bot-2205

Hydrology (Runoff and factors affecting Run off)

Category:CAUSES OF FLOOD - SlideShare

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Fan and fern shaped catchment

1 module run off (1) - SlideShare

WebThe fan shape watershed tends to produce higher peak rate of runoff very early than the fern shape, due to the fact that in former one all parts of the watershed contribute the runoff to the outlet simultaneously, comparatively in little period of time than the fern shape watershed. 3. Slope of Watershed: WebThe most common shapes are given as under: i. Fan shape; and ii. Fern shape. The fan shape watersheds are normally in circular shape; and fern shape watersheds are in elongated form. 3. Watershed Classification Based on Soil: These are mentioned as below: i. Red soil watershed; and ii. Black soil watershed. 4.

Fan and fern shaped catchment

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WebShape of catchment: If catchment area is fan shaped, silting will be more. If catchment area is fern shaped, silting will be less. 3. Slope of country: If slope is steep, more particles will be erodes because of high velocity of runoff & … WebA fan-shaped catchment produces greater flood intensity since all the tributaries are nearly of the same length and hence the time of concentration is nearly the same and is less, whereas in the fern-shaped catchments, the time of concentration is more and the discharge is distributed over a long period Assume Runoff Coefficient is 0.42 Unit ...

WebOct 6, 2024 · Then, a fan-shaped model is proposed and applied to Xi’an Metro Line 1 to generate catchment areas. The number and angle of fan areas are determined … WebDhatarwadi Dam has a fan shape (see figure 3) catchment having area of 221 sq.km Due to its fan shaped catchment t c was very less and playing very important role for occurring flashy...

WebA fan-shaped catchment produces greater flood intensity than a fern-shaped catchment f• Steep rocky catchments with less vegetation will produce more runoff compared to flat tracts with more vegetations. If the vegetation is thick greater is the absorption of water, soless runoff. If the direction of the storm WebSep 8, 2024 · This is because the tributaries in the case of Fan shaped basin are nearly of same size and length and lead their discharges at the …

WebOct 5, 2024 · The shape of the catchment also affect the surface runoff and flood. For a fan-shaped catchment, the time of concentration will be less and hence the peak flow will be more. But in case of fern-leaf type catchment of the same area and storm, the time of concentration will be more. 6.

http://ecoursesonline.iasri.res.in/mod/page/view.php?id=125274 medicare disability benefits over 65WebIf the catchment is unsymmetrical so that the drainage channel is along one edge of the catchment, the overland flow length can be approximated as (Area/Channel length). The two cases of symmetrical and one-sided … light-artWebFern & Fawn’s designs are created using local and wild flora & foliage. We source from our expanding gardens, local flower farmers, and the roadsides where eventually the town … light-armedWebFeb 8, 2024 · Ferns love moist soil and shady conditions, but some are even known to thrive in hanging baskets. While a fern requires more devotion and routine care when placed in … light-bodied red winelight-based hair removal in baliWebShape and size of the catchment: If the catchment area is large runoff will be more. If the catchment area is fan shaped runoff at outlet will be more as all the water contributes to … light-based hair removal in phuketWeb4.2 CATCHMENT CHARACTERISTICS. The entire area of a river basin whose surface runoff (due to a storm) drains into the river in the basin is considered as a hydrologic unit and is called drainage basin, watershed or catchment area of the river flowing (Fig. 4.3). The boundary line, along a topographic ridge, separating medicare disability 2 year waiting period