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Water Availability in High Mountain Glacial River in Nepal

Gautam Rajkarnikar Nepal    

July 14,2013  


Khumbu Meteorological  Sta/on  

Sta/on :  Dingboche  Meteorolgical  sta/on   Place  :    Dingboche   Al/tude:  4320  m   Parameters:  Thermo-­‐hygrograph  ,  Solar  Radia/on   Recorder,  Anemometer   •   Manual  Rain  Gauge  and  Totalizer   •   AWS  –  Data  logger.   •  •  •  • 


Meteorological Sta/on  


HYDROLOGICAL  STATION  

•  •  •  •  •  •  •  • 

Sta/on no  :  666   River  :  Imja  Khola   Place:  Dingboche   Lat  :  27º53’40”   Long  :  85º56’40”   Al/tude:  4320  m   Catchments  Area:  135  km2   Established:  1987  


Imja khola    at  Dingboche    


Monthly Average  Discharge,  Imja  Khola   Sta/on  Number:  666 Loca/on:  Dingboche River:  Imja

La/tude:      27  53  40 Longitude:  86  56  40 AVERAGE  MONTHLY  AND  YEARLY  DISCHARGE  (in  m3/s)

Year

1990 1991   1992   1993   1994   1995   1996   1997   1998   2000   Average  

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Year

1.42 1.49   1.50   1.43   1.43   1.27   1.30   1.30   1.72   0.98  

1.50 1.29   1.42   1.33   1.33   1.26   1.39   1.37   1.77   1.02  

1.42 1.56   1.45   1.41   1.07   1.25   1.36   1.45   2.02   1.15  

1.44 1.57   1.66   1.49   1.12   1.25   1.46   1.46   2.54   1.63  

1.83 2.50   1.95   2.87   1.26   1.90   2.21   2.22   3.18   2.01  

1.97 4.21   3.42   3.64   2.61   3.26   2.53   3.12   5.03   2.74  

5.70 6.15   4.21   3.78   3.57   4.25   3.59   5.09   3.95   4.56  

4.44 6.16   5.19   5.17   4.87   5.25   4.67   5.43   5.00   5.60  

2.97 3.95   4.64   3.95   3.95   3.15   4.03   3.93   3.91   2.43  

1.88 3.04   3.29   3.04   2.80   2.36   2.69   2.89   3.05   1.65  

2.14 3.10   2.63   3.10   2.01   2.40   1.60   2.24   3.11   1.24  

1.99 2.12   2.28   2.12   1.43   1.30   1.32   2.00   2.13   0.88  

2.39 3.10   2.80   2.78   2.29   2.41   2.35   2.71   3.12   2.16  

1.38

1.37

1.41

1.56

2.19

3.25

4.49

5.18

3.69

2.67

2.36

1.76

2.61


Hydrograph of  Imja  Khola     Average Monthly Discharge of Imja Khola

7 6

1990 1991

Discharge in m3/s

5

1992 1993

4

1994 1995

3

1996 1997 1998

2

2000 Average

1 0 Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec


Gauge sta/on,  Pangboche  


Langtang Meteorological  Sta/on  

•  •  •  •  •  •  •  •  • 

Sta/on: Langtang   Place:  Kyangjing   Lat:  28º13’00”   Long:  85º37’00”   Al/tude:  3920m   Parameters:  Thermo-­‐hygrograph,  Anemometer   Manual  raingauge,  Totalizer,   AWS  Data  logger   Established  date:1987  Jul  17  


Langtang Meteorological  Sta/on  


Langtang Hydrological  Sta/on  

•  •  •  •  •  •  •  •  • 

Sta/on no  :  446.1   River  Name  :  Langtang  khola  (  Source:  Langtang  Glacier)   Lat:  28º13’00”   Long:  85º33’00”   Al/tude  :  3800  m   Catchment  area:  340  km2   Place:  Kyangjing   Parameters:  staff  Gauge  1  m  to  4  m   Established:  1987  Jul  17  


Langtang  Hydrological  Sta/on    


Langtang Khola  


Monthly Average  Discharge,Lantang  Khola   Sta$on  number:  446.1   Loca$on:  Langtang  Village   River:  Langtang  Khola  

La$tude:      28  13  00   Longitude:  85  37  00   AVERAGE MONTHLY AND YAERLY DISCHARGE (in m3/s)

1993 1994   1995   1996   1997   1998   1999   2000   2001   2002   2003   2004   2005   2006   Average  

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Year

3.06 2.51   2.36   3.11   2.40   3.03   2.59   ...   2.32   1.26   3.46   2.62   2.48   2.48   2.59  

2.91 2.44   2.37   3.02   2.32   3.03   2.65   ...   1.95   0.827   2.98   2.19   2.23   2.24   2.39  

2.49 2.41   2.35   2.72   2.25   2.66   2.68   1.08   1.87   1.26   2.86   2.4   2.19   2.12   2.24  

2.73 2.42   2.46   2.57   2.41   2.87   6.62   1.27   2.49   1.96   3.43   2.65   2.30   2.20   2.74  

4.48 3.24   2.85   4.71   5.13   5.22   10.8   3.50   3.79   2.97   4.70   4.09   3.46   3.44   4.46  

8.68 9.52   13.4   12.3   10.6   13.0   12.3   8.33   6.62   9.22   9.10   6.29   10.6   9.37   9.95  

13.7 11.6   13.0   13.4   14.7   15.5   15.7   11.3   11.6   14.2   11.3   11.4   12.5   12.1   13.0  

14.2 12.4   12.8   12.9   13.5   14.5   15.4   10.7   11.5   12.9   12.4   11.9   12.1   11.7   12.8  

10.4 9.06   9.62   9.20   13.7   11.1   10.6   8.96   7.80   8.57   10.5   8.62   8.09   9.13   9.67  

4.24 5.36   4.70   4.76   10.0   7.79   4.15   4.14   4.01   5.66   5.77   4.15   4.27   4.26   5.24  

3.49 4.46   3.44   3.41   5.77   4.19   2.53   3.02   3.14   4.25   4.17   2.99   3.09   2.80   3.63  

3.02 3.12   3.32   2.74   2.93   2.61   2.43   2.34   2.55   3.69   3.54   2.59   2.75   2.44   2.86  

6.12 5.71   6.05   6.23   7.14   7.12   7.37   ...   4.98   5.56   6.18   5.17   5.50   5.36   6.04  


Hydrograph of  Lantang  Khola   Average Monthly Discharge of Langtang Khola

18 1993

16

1994 1995

14

1996 1997

12 Discharge (m3/s)

1998 1999

10

2000 2001

8

2002

6

2003 2004

4

2005 2006

2

Average

0 Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec


Conclusions •  The monitoring station should be telemetry to get information/ data on real time basis. •  Strong database including snow and glacier information needs to be established. •  The observation network should be sustainable. •  Networks be equipped with robust tools and trained human resources for data collection, compilation, and processing.


Thank You

Gautam Rajkarnikar: Water availability in high mountain glacial river in Nepal  

Slides for presentation given to High Mountains Adaptation Partnership in Huaraz, Peru on 13 July 2013.

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