Site ID:

888

Lat.

69.1877

USA

River:

Coleville

Long.

-153.1106

Site name:

Contributing area:

34250

km2

Ratio to Comparison Station:

0.68

Latest measurement:

12-Nov-09

Mean annual runoff:

216

(2003-2007)

Hydrologic status:

Ice covered

Total runoff this year:

248

Latest M/C ratio:

1.05

Seven day total:

Estimated current discharge:

124

m3/sec

Percent of mean 7-day total:

125.0

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

Ice-cover determination:

5 yr recurrence flood:

1200

m3/sec

(from Log Pearson III analysis)

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

1206

m3/sec

(from Gumbel Extreme Value analysis)

Comparison Station Information:

Hughes, Alas. (4103500)

Contributing Area:

sq mi

50305

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 summer monthly means from a station in the region; ice-covered constant discharge of 124 m3/sec is assumed.

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

223

2003

5.3

8.8

9.7

9.4

9.7

47.6

49.1

37.9

13.2

15.5

6.7

9.7

236

2004

9.7

9.1

9.7

9.4

10.0

42.4

50.2

42.3

24.1

9.7

9.4

9.7

207

2005

9.7

8.8

9.7

9.4

9.7

43.9

40.0

30.6

19.5

10.1

5.3

9.7

153

2006

9.7

8.8

9.7

9.4

9.7

48.8

54.6

1.7

0.0

228

2007

9.7

8.8

9.7

9.4

9.7

44.3

41.8

37.5

32.9

5.7

9.4

9.1

248

2008

9.7

9.1

9.7

9.4

11.6

63.9

46.6

37.5

21.7

9.7

9.4

9.7

218

2009

9.7

8.8

9.7

9.4

10.8

52.1

42.0

33.3

30.7

7.3

4.7

0.0

Mean Annual Runoff:

216

Standard Deviation:

Trend in Annual Runoff (slope)

4.23

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