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Weather Modification Division of the Malaysian Meteorological Department was established in 1973. This division was responsible to carried out cloud seeding operation when it needed. In year 1977, cloud seeding operation has been carried out over MADA (Muda Agriculture Development Authority) catchments area. This operation is to enhance the rainfall over Pedu and Muda dams to ensure that there would be sufficient water supply for double cropping in MADA area.
In 1979, MMD had carried out cloud seeding operation over the Temengor catchments after received a request from National Electricity Limited Company (formerly National Electricity Board). The objective of the operation was to induce and enhance rain to maintain the reservoir water storage of Temengor Dam above the operating level for hydroelectric power generation.
Similar cloud seeding operations were also carried out over the catchments of other dams, such as Durian Tunggal in Malacca; Langat, Klang Gate, Semenyih and Sungai Tinggi dams in Klang Valley to augment water resources to meet the needs of industrial and domestic water consumption during long dry spells. In 1997, when the country experienced severe haze during the El Nino episode, the Malaysian Meteorological Service was requested to carry out cloud seeding operations as an attempt to create rain to help to reduce the effect of haze and forest fire on the socio-economic activities of the country.
The Weather Modification Division carries out cloud seeding operation to enhance rainfall over dams. Sufficient water supply to dams is necessary to meet the needs of agricultural, industrial, hydroelectric power generation and domestic water consumption. Cloud seeding operations are also carried out as an attempt to create rain to help to reduce the effect of haze and forest fire which affects the socio-economic activities of the country.
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