Site ID:

2550

Lat.

9.3846

Panama

River:

Changuinola

Long.

-82.5231

Site name:

Contributing area:

3220

km2

Ratio to Comparison Station:

0.06

Latest measurement:

12-Oct-09

Mean annual runoff:

566

(2003-2007)

Hydrologic status:

Normal flow

Total runoff this year:

925

Latest M/C ratio:

1.09

Seven day total:

Estimated current discharge:

m3/sec

Percent of mean 7-day total:

91.0

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

Ice-cover determination:

5 yr recurrence flood:

293

m3/sec

(from Log Pearson III analysis)

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

273

m3/sec

(from Gumbel Extreme Value analysis)

Comparison Station Information:

Boca del Cerro (4362600)

Contributing Area:

sq mi

50458

sq km

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

Notes:

Discharge calibration based on comparison of monthly means (maximum flows, minimum flows and mean discharge) from a station in the region

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

2002

no data

0.0

2003

0.0

2004

0.0

612

2005

0.0

5.7

63.9

107.1

8.2

0.0

79.2

70.8

115.0

70.5

91.5

266

2006

39.1

0.0

89.4

67.5

69.7

0.0

820

2007

70.0

40.3

68.3

58.4

73.5

70.3

82.0

63.9

83.2

72.8

68.1

69.6

925

2008

67.6

53.5

57.0

66.5

82.6

74.9

82.6

106.2

81.1

62.2

99.4

92.0

780

2009

89.4

73.0

86.9

65.1

76.7

80.5

97.0

84.5

84.4

42.2

0.0

Mean Annual Runoff:

656

Standard Deviation:

407

Trend in Annual Runoff (slope)

149.53

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