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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.
Groundwater overexploitation occurs in heavily populated coastal areas of Java, including in Jakarta and Semarang. In Jakarta, it has caused seawater intrusion up to 10 km (6.2 mi) from the coast and land subsidence at a rate of 2–34 cm/year in east Jakarta. [7] In Semarang, land subsidence occurs at a rate of 9 cm/year. [8]
It was a large-scale air quality disaster. The total costs are estimated at US$9 billion to health care, air travel and business. In 2013, the air quality in Singapore sank to its lowest in 15 years due to smoke from Sumatran fires. Singapore urged Indonesia to do more to prevent illegal burning. [13]
In April 1994, Dunia Air Tawar, known as Taman Aquarium Air Tawar at that time, acquired a pair of wild caught largetooth sawfish from Lake Sentani, which died in 2005, making it the only public aquarium to keep sawfish in Indonesia. [12] A large featherback kept by Dunia Air Tawar was said to be the extinct Chitala lopis.
The Jakarta Flood Canal (Indonesian: Kanal Banjir Jakarta) refers to two canals that divert floods from rivers around Jakarta instead of going through the city. This first flood control channel was designed by Hendrik van Breen, an engineer working for the Dutch East Indian Department van Burgelijke Openbare Werken (BOW—lit.
The Research Organization for Life Sciences and Environment (Indonesian: Organisasi Riset Ilmu Pengetahuan Hayati dan Lingkungan, ORIPHL but also known as ORHL) is one of Research Organizations under the umbrella of the National Research and Innovation Agency (Badan Riset dan Inovasi Nasional, BRIN).
Central Jakarta Administrative City (Kota Administrasi Jakarta Pusat) is bounded by North Jakarta to the north, East Jakarta to the east, South Jakarta to the south, and West Jakarta to the west. It is subdivided into eight districts ( kecamatan ), listed below with their areas and their populations at the 2010 census [ 2 ] and 2020 Census, [ 3 ...
The proportion of the core city's (Jakarta) population to that of the entire metropolitan area also declined significantly. In 2020, the population of Jakarta was only 30.4% of the total population of the Jakarta metropolitan area, continuing the decline from 54.6% in 1990 to 43.2% in 2000 and 35.5% in 2010.