Surface & Ground Water Resources- 1 | Engineering Hydrology - Civil Engineering (CE) PDF Download

 Page 1


 
 
 
Figure 6.  Normal onset dates for Monsoon (Courtsey: India Meteorological 
Department) 
 
 
 
 
 
 
 
 
 
 
Page 2


 
 
 
Figure 6.  Normal onset dates for Monsoon (Courtsey: India Meteorological 
Department) 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 7.  Normal withdrawal dates for Monsoon (Courtsey: India Meteorological 
Department) 
 
 
1.1.2 Runoff 
  
Runoff is the water that flows across the land surface after a storm event.  As 
rain falls over land, part of that gets infiltrated the surface as overland flow.  As 
the flow bears down, it notches out rills and gullies which combine to form 
channels.  These combine further to form streams and rivers. 
  
The geographical area which contributes to the flow of a river is called a river or a 
watershed.  The following are the major river basins of our country, and the 
 
Page 3


 
 
 
Figure 6.  Normal onset dates for Monsoon (Courtsey: India Meteorological 
Department) 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 7.  Normal withdrawal dates for Monsoon (Courtsey: India Meteorological 
Department) 
 
 
1.1.2 Runoff 
  
Runoff is the water that flows across the land surface after a storm event.  As 
rain falls over land, part of that gets infiltrated the surface as overland flow.  As 
the flow bears down, it notches out rills and gullies which combine to form 
channels.  These combine further to form streams and rivers. 
  
The geographical area which contributes to the flow of a river is called a river or a 
watershed.  The following are the major river basins of our country, and the 
 
corresponding figures, as obtained from the web-site of the Ministry of Water 
Resources, Government of India (http://www.wrmin.nic.in) is mentioned 
alongside each. 
 
1. Indus (Figure 8) 
2. Ganges (Figure 9) 
3. Brahmaputra (Figure 10) 
4. Krishna (Figure 11) 
5. Godavari (Figure 12) 
6. Mahanandi (Figure 13) 
7. Sabarmati (Figure 14) 
8. Tapi (Figure 15) 
9. Brahmani-Baitarani (Figure 16) 
10. Narmada (Figure 17) 
11. Pennar (Figure 18) 
12. Mahi (Figure 19) 
 
 
Page 4


 
 
 
Figure 6.  Normal onset dates for Monsoon (Courtsey: India Meteorological 
Department) 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 7.  Normal withdrawal dates for Monsoon (Courtsey: India Meteorological 
Department) 
 
 
1.1.2 Runoff 
  
Runoff is the water that flows across the land surface after a storm event.  As 
rain falls over land, part of that gets infiltrated the surface as overland flow.  As 
the flow bears down, it notches out rills and gullies which combine to form 
channels.  These combine further to form streams and rivers. 
  
The geographical area which contributes to the flow of a river is called a river or a 
watershed.  The following are the major river basins of our country, and the 
 
corresponding figures, as obtained from the web-site of the Ministry of Water 
Resources, Government of India (http://www.wrmin.nic.in) is mentioned 
alongside each. 
 
1. Indus (Figure 8) 
2. Ganges (Figure 9) 
3. Brahmaputra (Figure 10) 
4. Krishna (Figure 11) 
5. Godavari (Figure 12) 
6. Mahanandi (Figure 13) 
7. Sabarmati (Figure 14) 
8. Tapi (Figure 15) 
9. Brahmani-Baitarani (Figure 16) 
10. Narmada (Figure 17) 
11. Pennar (Figure 18) 
12. Mahi (Figure 19) 
 
 
 
 
 
Page 5


 
 
 
Figure 6.  Normal onset dates for Monsoon (Courtsey: India Meteorological 
Department) 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 7.  Normal withdrawal dates for Monsoon (Courtsey: India Meteorological 
Department) 
 
 
1.1.2 Runoff 
  
Runoff is the water that flows across the land surface after a storm event.  As 
rain falls over land, part of that gets infiltrated the surface as overland flow.  As 
the flow bears down, it notches out rills and gullies which combine to form 
channels.  These combine further to form streams and rivers. 
  
The geographical area which contributes to the flow of a river is called a river or a 
watershed.  The following are the major river basins of our country, and the 
 
corresponding figures, as obtained from the web-site of the Ministry of Water 
Resources, Government of India (http://www.wrmin.nic.in) is mentioned 
alongside each. 
 
1. Indus (Figure 8) 
2. Ganges (Figure 9) 
3. Brahmaputra (Figure 10) 
4. Krishna (Figure 11) 
5. Godavari (Figure 12) 
6. Mahanandi (Figure 13) 
7. Sabarmati (Figure 14) 
8. Tapi (Figure 15) 
9. Brahmani-Baitarani (Figure 16) 
10. Narmada (Figure 17) 
11. Pennar (Figure 18) 
12. Mahi (Figure 19)