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Ci Asem River Ci Asem, Sungai Ciasem, Ciasem, Tjiasem, Tji Asem
Ciasem mouth
Location
Country	Indonesia
Province	West Java
Physical characteristics
Source	Mount Tangkuban Perahu
• location	Cicadas, Subang regency
• coordinates	6°44′56″S 107°36′41″E / 6.748750°S 107.611500°E / -6.748750; 107.611500
Mouth	Ciasem bay, (Java Sea)
• location	Blanakan, Subang Regency
• coordinates	6°13′28″S 107°41′45″E / 6.224475°S 107.695886°E / -6.224475; 107.695886
Basin size	745 km (288 sq mi)
Basin features
River system	Ciasem basin
Bridges	Pantura Ciasem bridge
Basin management unit	BPDAS Citarum Ciliwung
map shows the river source (green pin) near Lembang flowing northward and emptying into Ciasem Bay (blue pin) in the Java Sea.

Asem River (Ci Asem) is a river in northern West Java province on Java island, Indonesia. The river rises on Mount Tangkuban Perahu and discharges into the Bay of Ciasem, Java Sea, traversing Ciasem, Subang Regency, around 90 km east of the capital Jakarta.

Hydrology

Asem River is one of the three main rivers in the Subang Regency. There are a total of 21 rivers and 61 tributaries in the watershed area of (Daerah Aliran Sungai/DAS) Ciasem of 745 km. Compared to the other two main rivers - Ci Punegara and Ci Lamaya - Asem River and its many tributaries all flow only within the Subang Regency. The river has a total length of 60 kilometer until the northern coast.

Geography

The river flows in the northwest area of Java with a predominantly tropical monsoon climate (designated as Am in the Köppen-Geiger climate classification). The annual average temperature in the area is 25 °C. The warmest month is September when the average temperature is around 28 °C, and the coldest is July, at 24 °C. The average annual rainfall is 2810 mm. The wettest month is January, with an average of 454 mm of rainfall, and the driest is September, with 14 mm of rainfall.

See also

• List of rivers of Indonesia
• List of rivers of Java
• List of drainage basins of Indonesia

References

1. ^ "Keputusan Menteri Kehutanan Nomor SK.511/MENHUT-V/2011 Tahun 2011 - Pusat Data Hukumonline".
2. Ci Asem at Geonames.org (cc-by); Last updated 2013-06-04; Database dump downloaded 2015-11-27
3. Rand McNally, The New International Atlas, 1993.
4. ^ Sering Menelan Korban Jiwa, Inilah Catatan Kelam Sungai Ciasem yang Misterius dan Melegenda - Soeara Rakjat. December 17, 2016.
5. Peel, M C; Finlayson, B L; McMahon, T A (2007). "Updated world map of the Köppen-Geiger climate classification". Hydrology and Earth System Sciences. 11 (5): 1633–1644. Bibcode:2007HESS...11.1633P. doi:10.5194/hess-11-1633-2007. Retrieved 30 January 2016.
6. "NASA Earth Observations Data Set Index". NASA. 30 January 2016. Archived from the original on 11 May 2020. Retrieved 31 December 2018.
7. "NASA Earth Observations: Rainfall (1 month - TRMM)". NASA/Tropical Rainfall Monitoring Mission. 30 January 2016. Archived from the original on 19 April 2019. Retrieved 31 December 2018.

6°13′23″S 107°41′45″E / 6.22306°S 107.69583°E / -6.22306; 107.69583

• Rivers of West Java
• Ciasem basin