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River Flows

RIVER FLOWS
The hydrometric network used for the control and day to day operations of the Kariba reservoir comprise of thirteen stations where water levels are monitored daily.  Flow measurements are carried out at eight of these stations which include the Victoria Falls, one of the key stations on the Zambezi River.

Coincidentally, the maximum flow recorded at Victoria Falls was during the early construction phase of Kariba Dam in March 1958 at 10,000 cubic metres per second.  The lowest flows recorded to date at Victoria Falls were during the 1995/96 season which had an annual mean flow of 390 cubic metres per second, whereas the Long Term Mean Annual flow at Victoria Falls is 1,100 cubic metres per second.

FLOWS AT SELECTED STATIONS:

Chavuma

Flows on the Zambezi River at Chavuma rose steadily due to rainfall activities being recorded around the catchment area. The flow closed the week under review at 72m3/s on 20th November 2017, while the flow observed last year on the same date was 57m3/s.

From:

14 November 2017

To:

20 November 2017

From:
14 November 2017
To:
20 November 2017
DateFlow(m3/s)
14/11/201763
15/11/201766
16/11/201766
17/11/201767
18/11/201769
19/11/201771
20/11/201772

Nana's Farm

This station is located about 33km upstream of Victoria Falls.  Since there is no major tributary between this site and the falls, flows measured at this station can be considered as flows passing over the falls.

Flows on the Zambezi River at Nana’s Farm are in recession with fluctuations being recorded due to localised rainfall and closed the week under review at 208m3/s on 21st November 2017, while the flow observed last year on the same date was 188m3/s.

From:

15 November 2017

To:

21 November 2017

From:
15 November 2017
To:
21 November 2017
DateFlow(m3/s)
15/11/2017216
16/11/2017219
17/11/2017217
18/11/2017219
19/11/2017215
20/11/2017209
21/11/2017208

Victoria Falls/Big Tree

Flows at Victoria Falls are in recession with fluctuation in flows being recorded.  The end of the week flow was 180m3/s on 21st November 2017. Last year on the same date, the flow was 157m3/s.  

From:

15 November 2017

To:

21 November 2017

From:
15 November 2017
To:
21 November 2017
DateFlow(m3/s)
15/11/2017198
16/11/2017198
17/11/2017192
18/11/2017192
19/11/2017186
20/11/2017186
21/11/2017180

Ngonye

Flows on the Zambezi River at Ngonye are in recession with fluctuations being recorded in flows and closed the week under review at 214 m3/s on 21st November 2017, while last year’s flow on the same date was 205m3/s.

From:

15 November 2017

To:

21 November 2017

From:
15 November 2017
To:
21 November 2017
DateFlow(m3/s)
15/11/2017199
16/11/2017199
17/11/2017203
18/11/2017206
19/11/2017206
20/11/2017206
21/11/2017214