Site ID:

530

Lat.

47.2618

USA

River:

Red River (of the North)

Long.

-96.8425

Site name:

Halstad

Contributing area:

65000

km2

Ratio to Comparison Station:

0.72

Latest measurement:

12-Nov-09

Mean annual runoff:

114

(2003-2007)

Hydrologic status:

Normal flow

Total runoff this year:

Latest M/C ratio:

1.05

Seven day total:

Estimated current discharge:

223

m3/sec

Percent of mean 7-day total:

94.0

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

Ice-cover determination:

M< -11000

5 yr recurrence flood:

1748

m3/sec

(from Log Pearson III analysis)

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

1851

m3/sec

(from Gumbel Extreme Value analysis)

Comparison Station Information:

# USGS 05092000 RED RIVER OF THE NORTH AT DRAYTON, ND

Contributing Area:

34800

sq mi

90129

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 4-day running means

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

7.2

6.0

6.3

7.1

8.9

2003

6.6

6.2

6.4

7.2

18.6

7.6

8.3

7.9

6.7

8.4

5.6

6.7

101

2004

5.9

5.5

8.3

7.9

9.1

16.1

6.6

10.2

9.1

6.7

7.8

7.3

100

2005

6.3

5.3

6.0

11.4

15.1

0.6

12.6

12.3

9.4

8.7

6.2

121

2006

6.2

5.3

8.5

45.1

10.5

6.4

7.2

11.1

11.5

9.0

0.0

153

2007

13.5

6.2

20.5

24.8

18.6

16.1

9.0

10.4

7.7

10.4

8.9

6.8

2008

6.0

5.5

6.3

6.2

8.5

13.3

8.2

9.1

8.8

8.6

7.2

7.9

126

2009

5.8

5.3

10.8

42.8

17.8

7.2

8.0

6.9

9.9

8.5

3.4

0.0

Mean Annual Runoff:

111

Standard Deviation:

22.5

Trend in Annual Runoff:

4.91

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