Site ID:

2107

Lat.

26.6920

China

Jiangxi

River:

Gan

Long.

114.8191

Site name:

Majiashou

Contributing area:

25630

km2

Ratio to Comparison Station:

1.10

Latest measurement:

21-Nov-09

Mean annual runoff:

556

(2003-2007)

Hydrologic status:

Normal flow

Total runoff this year:

734

Latest M/C ratio:

1.25

Seven day total:

Estimated current discharge:

570

m3/sec

Percent of mean 7-day total:

143.1

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

Ice-cover determination:

5 yr recurrence flood:

2297

m3/sec

(from Log Pearson III analysis)

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

2259

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

203

2002

no data

52.7

18.1

21.8

60.5

50.3

404

2003

59.9

47.0

46.0

121.1

47.3

10.6

38.2

20.8

1.8

3.9

5.3

1.8

375

2004

2.6

20.7

28.3

95.3

65.1

5.6

49.2

54.2

11.9

10.2

17.5

14.2

675

2005

14.6

29.3

54.6

130.6

98.5

17.6

88.7

48.2

21.5

41.1

52.6

77.6

641

2006

56.4

29.9

98.5

157.1

73.9

26.6

75.0

74.6

18.7

30.3

0.0

684

2007

55.3

64.1

80.3

138.6

84.8

17.3

56.8

47.6

31.3

32.7

42.0

32.6

734

2008

39.1

62.8

91.5

140.0

82.1

19.5

93.8

62.4

24.1

26.6

49.5

42.3

558

2009

33.6

32.8

69.5

131.8

49.5

14.3

82.6

58.3

21.7

27.4

36.1

0.0

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