Site ID:

242

Lat.

16.3120

Thailand

Maha Sarakham

River:

Chi

Long.

102.9910

Site name:

Kosum Phisai

Contributing area:

28616

km2

Ratio to Comparison Station:

1.23

Latest measurement:

10-Nov-09

Mean annual runoff:

265

(2003-2007)

Hydrologic status:

Normal flow

Total runoff this year:

461

Latest M/C ratio:

1.10

Seven day total:

Estimated current discharge:

m3/sec

Percent of mean 7-day total:

40.1

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

Ice-cover determination:

5 yr recurrence flood:

1931

m3/sec

(from Log Pearson III analysis)

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

1803

m3/sec

(from Gumbel Extreme Value analysis)

Comparison Station Information:

Tokwe Confluence D/s C/s (1495240)

Contributing Area:

7280

sq mi

23237

sq km

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

Notes:

Comparison station is placeholder, only; this site is not yet calibrated to actual discharge

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

575

2002

no data

25.8

84.8

229.4

150.3

84.3

407

2003

111.5

56.1

6.0

13.7

10.3

22.1

57.8

26.6

34.0

22.0

23.1

23.9

458

2004

95.1

77.8

31.1

9.0

46.8

52.5

43.0

47.9

5.2

14.2

23.1

11.9

231

2005

82.6

96.4

11.6

4.3

0.4

1.6

17.5

7.8

3.0

0.3

4.9

0.5

2006

0.5

0.2

0.4

1.4

7.8

10.6

7.5

0.3

3.3

0.0

196

2007

46.8

78.3

11.1

0.3

1.9

11.0

10.3

5.8

0.3

10.7

12.9

6.4

461

2008

63.7

39.2

3.9

1.7

37.2

14.7

8.2

10.9

27.0

95.7

89.5

69.3

228

2009

115.2

59.6

3.0

1.6

26.7

7.0

3.0

1.4

0.3

3.1

7.4

0.0

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