IMAGES

  1. 1: The Vaal River catchment area. Source: DWAF (2002)

    hypothesis of vaal river

  2. 1: The Vaal River catchment area. Source: DWAF (2002)

    hypothesis of vaal river

  3. Vaal River Map along with the Sampling Points: Vereeniging (A

    hypothesis of vaal river

  4. Major dams in the Integrated Vaal River System (IVRS) (note: their

    hypothesis of vaal river

  5. Vaal River

    hypothesis of vaal river

  6. Maps and Diagrams

    hypothesis of vaal river

COMMENTS

  1. Vaal River

    The Vaal River (/ ˈ v ɑː l / Afrikaans pronunciation:; Khoemana: ǀHaiǃarib) is the largest tributary of the Orange River in South Africa.The river has its source near Breyten in Mpumalanga province, east of Johannesburg and about 30 kilometres (19 mi) north of Ermelo and only about 240 kilometres (150 mi) from the Indian Ocean. It then flows westwards to its confluence with the Orange ...

  2. Vaal River

    Vaal River, northern tributary of the Orange River, South Africa.Rising at Sterkfontein Beacon near Breyten, in Mpumalanga province, it flows 750 miles (1,210 km) southwest to its confluence with the Orange near Douglas; the Vaal's middle section forms most of the Free State's northern provincial boundary. It is basically a plateau river and occupies a shallow bed.

  3. Impact of Human activities on the Waterval River located in the Vaal

    Rand Water's chemical water quality data from 1991 to 2000 were used to assess the water quality of the Waterval River, which contributes about 111 x 106m3 of water to the Vaal River annually.

  4. (PDF) Climate influences on Vaal River flow

    Abstract and Figures. A study of climatic influences on Vaal River discharge, near Johannesburg, South Africa, finds that peak summer flows in the period 1979-2014 coincide with ocean-atmosphere ...

  5. Climate influences on Vaal River flow

    A study of climatic influences on Vaal River discharge, near Johannesburg, South Africa, finds that peak summer flows in the period 1979-2014 coincide with ocean-atmosphere interaction in the east Atlantic. The analysis has three parts: inter-annual influences by correlation of summer discharge with climate fields, atmosphere and ocean ...

  6. (PDF) Effects of human activities on the Waterval River, Vaal River

    Rand Water's chemical water quality data from 1991 to 2000 were used to assess the water quality of the Waterval River, which contributes about 111 x 106m3 of water to the Vaal River annually.

  7. (PDF) Water and the human culture of appropriation: the Vaal River up

    The Vaal River is said to have continuously suffered many environmental insults over the years (Rogerson 1990;van Riet and Tempelhoff 2009) due to its close proximity to major industrial and ...

  8. Climate influences on Vaal River flow

    A study of climatic influences on Vaal River discharge, near Johannesburg, South Africa, finds that peak summer flows in the period 1979-2014 coincide with ocean-atmosphere interaction in the east Atlantic. The analysis has three parts: inter-annual influences by correlation of summer discharge with climate fields, atmosphere and ocean composites of 14 peak flow months, and a case study ...

  9. PDF The Vaal River catchment: Problems and research needs

    The Vaal River catchment: Problems and research needs

  10. Pollution Of The Vaal River System In South Africa: A Case Study

    The Vaal River is one of South Africa's strongest flowing rivers. It is home to the Vaal Dam, which supplies water to the Gauteng Province, South Africa's economic hub. Over the years, the failing wastewater treatment system in the catchment area has led to continued pollution of the river, compromising this critical resource and the ...

  11. PDF The Vaal River Inquiry Provisional Report

    of river flora and other competing species in the river caused by pollution of the Vaal. Livestock . The Vaal Report . 3 . which consume water from the Vaal have reportedly died. T he flow of raw sewerage on public streets, paths, and into homes poses a major healthhazard to people and is an obvious

  12. Assessment of natural and anthropogenic influences on ...

    The Vaal River Basin is an economically significant area situated in the interior of South Africa (SA), where mining, industrial, domestic and agricultural activities are very intense. ... The Bartlett's test of sphericity tests the null hypothesis that the correlation matrix is an identity matrix. The significance value is less than 0.05 ...

  13. GEOGRAPHY GRADE 12 RESEARCH TASK 2018

    NB: Choose the river/stream closest to your school as an area of study AND conduct your research by following the steps outlined below: Step 1: Formulate the hypothesis: Human activities impact negatively on the quality of water and the flow pattern in the section of the Vaal River passing the town of Parys.

  14. PDF A Critical Assessment of the Causes and Impacts of Water Pollution- the

    the case of the Vaal River in Emfuleni Local Municipality Kholiswa Xaba Student no: 391364 School of Architecture and Planning University of the Witwatersrand . Johannesburg, South Africa Supervisor: Dr Brian Boshoff A research report submitted to the Faculty of Engineering and the Built Environment, University of the Witwatersrand, in partial ...

  15. Effects of human activities on the Waterval River, Vaal River catchment

    Abstract. Rand Water's chemical water quality data from 1991 to 2000 were used to assess the water quality of the Waterval River, which contributes about 111 x 10 6 m 3 of water to the Vaal River annually. Due to a biological community's ability to reflect water quality changes over time, biomonitoring was undertaken to support chemical water quality monitoring.

  16. PDF Information Analysis and Data Gathering Report

    State and North-West Provinces. The Vaal River flows in a westerly direction to the Lower Vaal WMA. It is the middle WMA within the Vaal River System. The following major tributaries drain into this section of the Vaal River and into the Bloemhof Dam: Renoster River, Vals River, Sand River, Vet River and the Schoonspruit River.

  17. Vaal River pollution is beyond acceptable levels: SAHRC

    The Vaal River system, on which approximately 19 million people depend for drinking water and commercial use, is polluted beyond acceptable standards. This is the finding of the SA Human Rights ...

  18. Tiny weevils are waging war on the invasive water lettuce plant choking

    Since then, the infestation has covered up to 40km of the river in the Vaal Barrage area, around the town of Vanderbijlpark, and threatens to spread downstream of the 1,200km long Vaal River.

  19. 'A story of South Africa': Emfuleni residents fed up with Vaal River

    29 Oct 2021 3. Fish continue to die from sewage pollution in the Vaal despite years-long efforts by activists to hold local authorities accountable. It's a story you've heard before, and as ...

  20. Research TASK Grade 12 2024

    THE RESEARCH TASK A HYPOTHESIS TESTING APPROACH TO RESEARCH TASKS IN GEOGRAPHY FET Table 1: Research Activity and Due Date Steps Marks Descriptor(s) Term Formulation of the hypothesis Due Date: ... Vaal River A study of the human impact on flow patterns of the Jukskei river in Alexandra Catchment and river management in Gauteng Challenges ...

  21. Vaal River Map along with the Sampling Points: Vereeniging (A

    The river has its source in the east of Johannesburg, Drakensberg Mountains in Mpumalanga; also, about 240 km from the Ocean and about 30 km north of Ermelo. ... View in full-text Context 2