Site ID:

2547

Lat.

9.4980

Panama

River:

Sixaloa

Long.

-82.6316

Site name:

Contributing area:

2520

km2

Ratio to Comparison Station:

0.05

Latest measurement:

12-Oct-09

Mean annual runoff:

649

(2003-2007)

Hydrologic status:

Normal flow

Total runoff this year:

990

Latest M/C ratio:

1.14

Seven day total:

Estimated current discharge:

m3/sec

Percent of mean 7-day total:

135.0

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

Ice-cover determination:

5 yr recurrence flood:

185

m3/sec

(from Log Pearson III analysis)

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

186

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

652

2005

0.0

5.8

81.8

90.7

14.2

0.0

85.5

85.6

76.0

100.1

112.4

340

2006

42.2

0.0

87.0

104.2

106.9

0.0

953

2007

77.8

61.1

60.6

93.1

67.2

89.1

83.4

80.7

76.4

103.5

79.4

81.0

990

2008

85.0

70.5

82.2

88.8

70.2

57.3

94.3

86.3

76.5

84.8

86.9

107.3

816

2009

79.7

78.4

100.6

88.8

79.6

88.4

99.4

74.5

83.0

43.1

0.0

Mean Annual Runoff:

734

Standard Deviation:

446

Trend in Annual Runoff (slope)

163.36

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