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This is a list of river catchment areas, also known as drainage basins, in Indonesia. Based on the National River Basin Classification map, Indonesia has a total of 42,210 river basins organized as a basis for determining watershed management policies.
The area of the Jakarta Special District is 662 km 2 of land area and 6,977 km 2 of sea area. [2]Jakarta lies in a low, flat basin, averaging 7 metres (23 ft) above sea level; [citation needed] 40% of Jakarta, particularly the northern areas, is below sea level, [3] while the southern parts are comparatively hilly.
Water supply and sanitation in Indonesia is characterized by poor levels of access and service quality. More than 16 million people lack access to an at least basic water source and almost 33 million of the country's 275 million population has no access to at least basic sanitation . [ 4 ]
Floods have hit Jakarta several times in the past, including in 1621, 1654, 1918, 1942, 1976, 1996, 2002, 2007, 2013 and 2015. A significant contributing factor is that a substantial part of Jakarta is low-lying; some 24,000 ha (240 km 2) of the main part of Jakarta are below sea level. [6]
Severe floods have been reported to have hit Jakarta in the past, including in 1621, 1654, 1918, 1942, 1976, 1996, 2002 and 2007. An important part of the flooding problem is caused by the fact that a substantial part of Jakarta is low-lying.
The province of South Sulawesi experiences flooding annually. Due to development of a low-pressure area in the Timor Sea coupled with increased humidity in the wet season, the rainfall levels in the area increased significantly, with the Meteorology, Climatology, and Geophysical Agency issuing an extreme weather warning between 21 and 26 January 2019. [3]
On 16 March 2019, a flash flood struck Jayapura Regency in the province of Papua, Indonesia due to torrential rain, with a separate landslide occurring in the city of Jayapura several hours later. At least 113 people were killed in the two events.
The Krukut River is a river flowing in Jakarta originating in Bogor Regency. [1] In the past the river was clean and one of the tourist attractions during the Dutch East Indies administration, but due to denser housing on the banks and lack of maintenance, the water turned dark and filled with trash, causing routine flooding in rainy seasons.