1029

Lat.

34.1871

USA

Texas

River:

Red

Long.

-98.9422

Site name:

Vernon

Contributing area:

52628

km2

Ratio to Comparison Station:

2.23

Latest measurement:

15-Nov-09

Mean annual runoff:

354

(2003-2007)

Hydrologic status:

Normal flow

Total runoff this year:

346

Latest M/C ratio:

0.99

Seven day total:

Estimated current discharge:

601

m3/sec

Percent of mean 7-day total:

92.3

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

Ice-cover determination:

5 yr recurrence flood:

1174

m3/sec

(from Log Pearson III analysis)

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

1155

m3/sec

(from Gumbel Extreme Value analysis)

Comparison Station Information:

Ruliff, Tex. (4150700)

Contributing Area:

sq mi

23585

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)

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

162

2002

no data

28.1

23.6

36.5

35.7

37.7

397

2003

37.2

32.3

36.1

35.5

35.9

34.9

32.5

29.3

30.6

31.6

27.9

33.0

412

2004

32.5

35.1

33.5

33.6

35.9

35.8

33.0

36.7

30.7

37.2

31.9

35.6

325

2005

32.1

26.5

30.4

31.4

27.5

19.8

3.0

29.6

28.3

29.8

33.7

32.9

242

2006

30.5

27.4

16.3

21.3

22.5

21.4

20.2

21.9

33.1

0.0

393

2007

26.7

31.8

33.3

33.4

40.3

36.2

35.7

31.7

31.8

31.7

31.1

29.5

346

2008

32.5

28.7

28.3

27.8

27.9

27.0

29.8

26.8

29.0

28.6

31.1

28.3

299

2009

31.5

28.4

24.8

25.0

27.5

33.6

31.7

30.3

24.0

25.0

17.0

0.0

Mean Annual Runoff:

Standard Deviation:

Trend in Annual Runoff (slope)

-11.22

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