Sunday, December 8, 2013

Watershed Management - Online Resources

RIVER BASINS IN ANDHRA PRADESH


BASIN
SUB BASIN ID
SUBBASIN
NO. OF WATERSHEDS
12. GODAVARI
1
BETWEEN GAIKWAD AND POCHAMPAD (GODAVARI MIDDLE)
26

2
INDRAVATI
37 

3
KOLAB AND OTHERS (GODAVARI LOWER)
33

4
MANJRA
28

5
PRANHITA AND OTHERS
28

6
UPSTREAM OF GAIKWAD (GODAVARI UPPER)
15

7
WARDHA
46

8
WEINGANGA
69
33. VAMSADHARA 
1
NAGVATI AND OTHERS
19 

2
VAMSADHARA AND OTHERS
19 
16. KRISHNA
1
BHIMA LOWER
26

2
BHIMA UPPER
40

3
KRISHNA LOWER
43

4
KRISHNA MIDDLE
19

5
KRISHNA UPPER
56

6
TUNGABHADRA LOWER
45

7
TUNGABHADRA UPPER
31

WATERSHED ATLAS OF INDIA

In this Atlas, the entire river systems of the country have been divided into 6 Water Resources Region, which has been further, divided into 35 basins and 112 catchments.  These catchments have been further divided into 500 sub-catchments and 3237 watersheds. 


Category of Hydrologic Units in India
S. No.
Category of Hydrologic Units
Size Range (ha)
No. of Units
1.
Water Resource Region
270,00,000-1130,00,000
6
2.
Basins
30,00,000-300,00,000
35
3.
Catchments
10,00,000-50,00,000
112
4.
Sub-catchments
200,000-10,00,000
500
5.
Watersheds
20,000-300,000
3237
6.
Sub-watersheds
5,000-9,000
12000
7.
Micro-watersheds
500-1,500
400000


(Source: Watershed Atlas of India http://cgwb.gov.in/watershed)

Water Resource Regions in India:

1. Indus
2. Rivers draining into Arabian Sea
3. Rivers draining into Bay of Bengal
4. Brahmaputra Drainage
5. Minor River Draining into other Basin/Country
6. Island Drainage