Hydrological activities in Malaysia began in the late of 19th century. The first rainfall station in Peninsular Malaysia was built in the year of 1878Â located inÂ Tanglin Clinic, Kuala Lumpur (known first as the Tanglin Hospital).
From 1879 to 1900, rainfall gauges installed manually in 19 hospitals in the peninsula for public health research. With the establishment of Drainage and Irrigation Department (formerly the Department of Drainage and Irrigation) in 1932, the rainfall station network increased dramatically in the early 19th century in 1900 to help the development of water resources and agriculture.
Following the flood occuredÂ in 1971, the hydrology unit was established in DID in 1972. National Hydrological Network has been restructured to meet international standards.
By 1985, the frequency of rainfall station construction by DID has meet World Metereological Organization.
In 1995, the Hydrological Branch has been upgraded to the Hydrology Division in the development of operational activities and hydrological applications.
With this achievement, hydrological activity continued in a more scientific and specifiedÂ in the field of operation, applications andÂ scientific hydrology. Today, hydrological activity has been known as one of the main functions to the sustainability of water resources planning, development and management.
BSAH DID Penang had manage about 67Â Hydrological network Station (including 23Â National stations) are active for hydrological data collection and monitoring of drought and floods.
To meet the expectations of internal and external customers to achieve quality planning.
Malaysia DID / DID Penang is responsible to achieve the objectives of quality management of hydrological data by ensuring all the data taken from the National Hydrological Station Network is always carried out efficiently and effectively to sustainable development with the commitment of the following:
â€¢ Collecting all types of data from all network stations Hydrology National Hydrology with performance data for each station is about 95% and to be reported to the Division of Water Resources Management and Hydrology within 30 days for non-rural stations and remote stations.
â€¢ Spreading of Hydrological data according to specifications and schedule as set out within seven (7) working days.
â€¢ Reduce customer complaints to the extent not exceeding 10% per annum of the total.
â€¢ Provide flood reports during the next 24 hours.
â€¢ To prepare drought monitoring reports every two weeks during the dry season or every 1 month at the regular season.
â€¢ Ensure that the support group of BSAHÂ attend the courses related to Hydrology at least once a year.