Site ID:

1589

Lat.

-22.2905

Madagascar

Fianarantsoa

River:

Vohipeno

Long.

47.7773

Site name:

Vohipeno

Contributing area:

3812

km2

Ratio to Comparison Station:

0.23

Latest measurement:

15-Nov-09

Mean annual runoff:

489

(2003-2007)

Hydrologic status:

Normal flow

Total runoff this year:

482

Latest M/C ratio:

1.06

Seven day total:

Estimated current discharge:

m3/sec

Percent of mean 7-day total:

124.7

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

Ice-cover determination:

5 yr recurrence flood:

149

m3/sec

(from Log Pearson III analysis)

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

146

m3/sec

(from Gumbel Extreme Value analysis)

Comparison Station Information:

Maroangaty (1389600)

Contributing Area:

7280

sq mi

16866

sq km

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

Notes:

Rating equation is based on monthly mean, maximum, and minimum M/C compared to gaging station discharge values.

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

153

2002

no data

28.5

25.2

31.1

29.7

38.6

475

2003

42.4

39.8

47.8

52.9

45.6

40.2

33.4

34.8

31.6

20.9

32.5

587

2004

50.4

57.5

61.2

67.0

66.1

50.3

48.8

38.0

38.7

29.7

30.3

49.0

505

2005

49.7

50.3

59.2

49.6

43.0

38.5

41.2

46.1

36.8

32.2

28.9

29.4

392

2006

40.2

41.4

41.5

41.8

40.6

34.5

43.3

40.9

35.8

32.4

0.0

485

2007

36.5

43.1

59.7

54.0

42.9

44.6

43.5

40.5

37.3

28.7

27.4

26.6

482

2008

30.5

51.5

50.9

44.4

42.3

35.9

42.9

48.9

43.6

33.5

23.6

33.9

471

2009

33.7

40.8

58.0

54.6

50.9

45.8

47.0

46.0

40.9

34.8

18.1

0.0

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