Site ID:

235

Lat.

13.6109

Cambodia

Batdambang

River:

O Rontens Banb

Long.

103.3365

Site name:

Phumi Srah Chhuk

Contributing area:

307

km2

Ratio to Comparison Station:

0.03

Latest measurement:

10-Nov-09

Mean annual runoff:

121

(2003-2008)

Hydrologic status:

Normal flow

Total runoff this year:

155

Latest M/C ratio:

1.57

Seven day total:

Estimated current discharge:

m3/sec

Percent of mean 7-day total:

249.5

(today's value compared to mean for same period, 2003-2007)

Ice-cover determination:

5 yr recurrence flood:

m3/sec

(from Log Pearson III analysis)

Status Codes: 1 = Low flow, 2 = Normal flow, 3 = Flood, 4 = Major Flood

m3/sec

(from Gumbel Extreme Value analysis)

Comparison Station Information:

Ban Chot (2969082)

Contributing Area:

sq mi

11886

sq km

(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)

Notes:

Drainage area may be incorrect; causing the discharge estimate to be too low.

Discharge and runoff, based on satellite remote sensing (NASA AMSR-E data)

(For U.S, sites, nearby ground station discharge may also be shown)

2008-Present

2002-Present

Annual

Monthly Total Runoff (mm), computed from above satellite-based discharge data

Runoff

(mm)

Jan

Feb

Mar

April

May

June

July

Aug

Sept

Oct

Nov

Dec

122

2002

no data

6.0

42.9

58.3

12.2

2.5

111

2003

1.1

0.9

2.9

11.1

18.1

5.8

20.5

12.3

13.3

25.4

-0.9

1.0

134

2004

1.3

1.8

1.7

9.1

8.0

26.8

12.8

35.9

31.8

7.4

-1.8

-1.1

2005

-1.3

-1.8

0.4

7.2

11.3

25.1

5.5

6.6

4.2

16.0

8.1

3.0

118

2006

0.8

0.5

0.1

4.7

8.3

10.9

21.0

13.0

12.3

46.2

0.0

128

2007

3.6

-0.2

1.0

2.1

36.4

23.5

15.7

0.8

5.2

19.2

17.6

3.2

155

2008

2.5

1.1

1.5

3.3

15.1

12.5

3.0

4.6

27.2

53.1

20.9

10.6

133

2009

5.5

0.5

2.0

5.9

9.5

5.3

2.4

0.7

23.2

63.4

14.7

0.0

2010

0.0

Mean Annual Runoff (mm):

121

Standard Deviation:

Trend in Annual Runoff (slope)

0.96

Discharge is estimated via a rating equation directly from the remote sensing data (M/C ratio) shown below.