Site ID:

2227

Lat.

-0.3409

Indonesia

Kalimantan Timur

River:

Mahakam Swamps

Long.

116.1443

Site name:

Muarapahu

Contributing area:

33534

km2

Ratio to Comparison Station:

1.44

Latest measurement:

5-Nov-09

Mean annual runoff:

1021

(2003-2007)

Hydrologic status:

Normal flow

Total runoff this year:

1252

Latest M/C ratio:

1.20

Seven day total:

Estimated current discharge:

360

m3/sec

Percent of mean 7-day total:

73.6

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

Ice-cover determination:

5 yr recurrence flood:

6671

m3/sec

(from Log Pearson III analysis)

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

6353

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

111

2002

no data

32.1

14.0

9.2

9.6

46.0

571

2003

80.0

69.8

54.5

120.5

63.8

24.3

19.5

13.7

11.9

37.5

9.7

66.1

847

2004

78.6

105.3

178.8

93.2

156.6

68.6

35.6

21.6

11.2

20.8

10.6

66.5

1346

2005

140.5

112.8

139.8

260.6

235.6

140.1

59.7

72.4

78.2

74.3

3.7

28.6

1264

2006

128.6

92.4

104.5

171.5

214.2

193.2

200.0

93.0

49.6

17.3

0.0

1077

2007

29.0

80.6

70.1

71.7

278.3

161.3

82.5

51.8

52.2

26.6

73.7

99.4

1252

2008

95.4

76.5

116.3

166.7

105.5

83.3

69.7

58.2

68.4

138.3

157.0

893

2009

113.5

120.7

139.6

116.0

96.3

99.0

95.6

69.6

22.7

10.8

9.3

0.0

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