Site ID:

1060

Lat.

17.9154

Mexico

River:

Usumacinta

Long.

-92.0480

Site name:

Contributing area:

70234

km2

Ratio to Comparison Station:

3.02

Latest measurement:

14-Nov-09

Mean annual runoff:

731

(2003-2007)

Hydrologic status:

Normal flow

Total runoff this year:

1124

Latest M/C ratio:

1.54

Seven day total:

Estimated current discharge:

1869

m3/sec

Percent of mean 7-day total:

38.4

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

Ice-cover determination:

5 yr recurrence flood:

6747

m3/sec

(from Log Pearson III analysis)

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

6631

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

290

2002

no data

41.1

37.4

76.5

68.7

66.8

665

2003

60.2

54.6

64.7

58.7

51.0

26.7

44.7

51.7

39.4

50.5

65.4

98.1

643

2004

73.3

47.3

59.0

51.0

39.5

52.9

50.1

44.4

34.3

67.9

67.4

56.4

812

2005

54.7

46.9

50.6

38.2

32.5

33.0

12.5

70.3

108.2

180.1

99.2

85.6

723

2006

66.5

66.8

59.2

48.2

41.3

49.4

96.4

127.6

82.5

85.0

0.0

811

2007

70.2

57.3

59.0

56.3

53.3

40.0

33.5

34.5

75.9

119.6

133.6

78.1

1124

2008

57.0

51.1

52.0

49.2

52.5

39.4

115.0

134.6

81.6

203.5

199.2

88.6

519

2009

66.2

58.3

60.8

56.5

49.1

25.5

46.6

42.0

40.5

48.3

25.2

0.0

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