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A chart datum is the water level surface serving as origin of depths displayed on a nautical chart and for reporting and predicting tide heights. A chart datum is generally derived from some tidal phase, in which case it is also known as a tidal datum. [1] Common chart datums are lowest astronomical tide (LAT) [1] and mean lower low water (MLLW).
MHW may be an abbreviation for: Marine heatwave; Mbukushu language (ISO 639 code: mhw), spoken in Namibia; Mean high water; Mental health worker, a medical abbreviation;
Lower Vaal WMA, or Lower Vaal Water Management Area (coded: 10), includes the following major rivers: the Harts River, Molopo River and Vaal River, and covers the following Dams: Spitskop Dam Harts River
It is named after the Vaal River and the Harts River, the Vaal River being its major tributary. [1] Water from a diversion weir in the Vaal River, near Warrenton, flows through a 1,176 km long network of canals. This system provides irrigation water to a total of 39,820ha scheduled land, industrial water to six towns and other industrial water ...
The Multihundred-watt radioisotope thermoelectric generator (MHW RTG) is a type of US radioisotope thermoelectric generator (RTG) developed for the Voyager spacecraft, Voyager 1 and Voyager 2. [1] The Voyager generators continue to function more than 45 years into the mission.
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. [1]
The construction of Vaal Dam started during the depression of the early thirties and the dam was completed in 1938 with a wall height of 54.2 metres (178 ft) above lowest foundation and a full supply capacity of 994,000,000 cubic metres (3.51 × 10 10 cu ft). The dam is a concrete gravity structure with an earthfill section on the right flank.
Vaal Reefs is a gold bearing reef which is mined near the town of Orkney in Dr Kenneth Kaunda District Municipality in the North West province of South Africa. The town of Orkney is home to a large gold mining operation originally owned by AngloGold Ashanti , a company that was originally incorporated in 1944 under the name of Vaal Reefs ...