282

Lat.

-18.0285

Namibia

Chobe

River:

Chobe

Long.

24.6050

Site name:

Kavimba

Contributing area:

146424

km2

Ratio to Comparison Station:

3.86

Latest measurement:

26-Oct-09

Mean annual runoff:

(2003-2007)

Hydrologic status:

Normal flow

Total runoff this year:

183

Latest M/C ratio:

1.10

Seven day total:

Estimated current discharge:

m3/sec

Percent of mean 7-day total:

99.3

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

Ice-cover determination:

5 yr recurrence flood:

4958

m3/sec

(from Log Pearson III analysis)

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

5138

m3/sec

(from Gumbel Extreme Value analysis)

Comparison Station Information:

Kamativi G/w (1491200)

Contributing Area:

sq mi

37973

sq km

(Data from this gaging station are used for the calibration to discharge, with an adjustment for different contributing areas)

Notes:

Discharge values are not calibrated to actual discharge; site is recording influxes of Zambezi River flood backwater (personal communication, G. van langenhove)

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

2002

no data

0.0

0.1

0.7

0.2

2003

0.1

1.7

0.1

16.6

9.6

2.9

0.2

0.1

0.0

0.1

2004

0.1

6.1

10.0

8.8

2.4

0.1

2005

0.1

0.0

0.1

0.4

2006

0.6

0.1

0.2

7.8

7.3

0.9

0.1

0.0

265

2007

0.1

77.0

82.5

73.7

27.3

4.2

0.3

0.1

183

2008

0.1

0.3

38.8

56.0

63.4

19.2

4.4

0.1

0.8

0.1

274

2009

0.1

28.0

103.2

91.6

35.3

12.2

2.4

0.2

0.8

0.0

Mean Annual Runoff:

Standard Deviation:

109

Trend in Annual Runoff (slope)

16.8

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