Terai<300m

Siwalik900-1500m

Lesser Himalaya

3600-4600m

Greater Himalaya> 4600m

Outer Himalaya1500- 3500m

Tibetan Plateau

4000m

Western DisturbancesNov. – March/April

SW MonsoonJune – Sep

Glaciers – 10%Winter snow cover 35-50 % Maximum monsoon precipitation at 1500 – 3000 m asl

Monsoon (June-Sep.)

Western disturbances

Decreasing strength

Decreasing strength

DETAILSDETAILS SATLUJ SATLUJ BEAS BEAS Basin AreaBasin Area 21163 Km21163 Km22 12377 Km12377 Km22

Elevation RangeElevation Range Max. Elevation – 6734 Max. Elevation – 6734

mm

Min. Elevation – 326 mMin. Elevation – 326 m

Max. Elevation – 6617 mMax. Elevation – 6617 m

Min. Elevation – 308 mMin. Elevation – 308 m

Land use Land use

features features

Forest , Snow cover, Forest , Snow cover,

Water, Barren land Water, Barren land

Forest , Snow cover, Forest , Snow cover,

Water, Barren land Water, Barren land

Average Annual Average Annual

Rainfall Rainfall

1416 mm1416 mm 1843 mm1843 mm

Major ReservoirMajor Reservoir Bhakra Nangal DamBhakra Nangal Dam Maharana Pratap Sagar Maharana Pratap Sagar

Snow/glacier Snow/glacier

melt contributionmelt contribution

in annual flowin annual flow

55%55% 35%35%

0

500

1000

1500

2000

2500

3000

3500

1977 1982 1987 1992 1997 2002 2007

Year

Flux

(MC

M)

Flux

Average

Linear (Flux)

Average = 1803 MCM

Chhatru (Chenab)

Batal (Chenab)

Beaskund-2 (Beas)Beaskund-1 (Beas)

Volume - 49%Area - 43%Recession – 7.5 m/yr

Volume -7%Area - 5%Recession – 26 m/yr

Volume -26%Area - 22%Recession – 54m/yr

Volume - 48%Area - 41%Recession – 2 m/yr

1980

2006

Phutse glacier

Khardug glacier

Nangtse glacier

Unnamed vanished glacier

Site of GLOF washed out bridge

Site of GLOF washed out Road

Pond sites

Road washed off Flood mark on the banks of lake

Washed of Culvert enroute to Pangong Lake

1996

1997

0

2 0 0 0

4 0 0 0

6 0 0 0

8 0 0 0

Dis

char

ge (

m3 /s

)

O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S1 9 9 6 1 9 9 7 1 9 9 8 1 9 9 9

O b served d isch a rge

S im u la ted d isch a rge

R a in fa ll ru n o ff

M elt ru n o ff

B ase flow

0

400

800

1200

1600

2000

2400

2800

Stre

amfl

ow (

m /s

)

1996/97 1997/98 1998/99

3

N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N

F igu re 4 : O b served an d sim u la ted d a ily stream flo w fo r th e S a tlu j R iver a t B h a k ra fo r a p er io d o f 3 y ea rs (19 96 /97 - 1 99 8 /99 ).

O b se rv ed s tream flo w

S im u la ted s tre am flo w

S im u la ted b ase flo w

TTHHAANNKKSS