Site ID:

709

Lat.

47.2696

France

River:

Cher

Long.

1.7011

Site name:

Contributing area:

8817

km2

Ratio to Comparison Station:

0.22

Latest measurement:

13-Nov-09

Mean annual runoff:

500

(2003-2007)

Hydrologic status:

Normal flow

Total runoff this year:

531

Latest M/C ratio:

0.93

Seven day total:

Estimated current discharge:

m3/sec

Percent of mean 7-day total:

78.6

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

Ice-cover determination:

5 yr recurrence flood:

304

m3/sec

(from Log Pearson III analysis)

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

302

m3/sec

(from Gumbel Extreme Value analysis)

Comparison Station Information:

Blois (6123300)

Contributing Area:

sq mi

40630

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 comparison of monthly means 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

164

2002

no data

34.8

37.8

30.3

25.6

35.4

520

2003

39.1

36.5

39.2

50.2

73.2

71.0

63.4

35.2

25.7

25.3

25.0

36.2

524

2004

39.5

36.6

39.7

47.9

59.3

62.1

64.3

44.2

40.5

26.4

32.4

31.7

468

2005

37.6

39.4

37.2

47.6

57.4

65.8

8.1

40.6

37.2

28.8

31.7

36.7

424

2006

26.7

19.9

29.8

49.7

67.8

63.4

59.5

41.6

33.6

31.9

0.0

566

2007

31.6

32.4

54.7

64.2

67.3

69.3

62.1

51.0

43.4

37.4

29.5

22.9

531

2008

17.9

29.9

39.1

54.9

64.6

75.1

70.2

43.4

40.5

36.9

26.6

32.0

477

2009

23.9

32.2

33.6

52.9

72.8

65.4

62.9

46.9

37.6

35.7

13.0

0.0

Mean Annual Runoff:

506

Standard Deviation:

Trend in Annual Runoff (slope)

3.1

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