Buni River

Buni River Cibuni, Tjibuni
Native name	Ci Buni (Indonesian)
Location
Country	Indonesia
State	West Java
Region	Cianjur Regency, Bandung Regency
Physical characteristics
Source
• location	Mount Patuha, West Java, Indonesia
• elevation	2,200 m (7,200 ft)
Mouth	Indian Ocean
• location	Sindangbarang, Indonesia
• coordinates	7°26′09″S106°47′36″E / 7.4359°S 106.7932°E / -7.4359; 106.7932
• elevation	1 m (3 ft 3 in)
Length	109 km (68 mi)
Basin size	1,435 km2 (554 sq mi) [1]
Basin features
River system	DAS Cibuni (DAS220718) [1]
Waterbodies	Situ Patenggang
Basin Management Authority	BPDAS Citarum-Ciliwung [1]
Southern coast of Java. The mouth of the Cibuni (blue pin) and the location of Patenggang Lake (green pin) in the upper sub-basin in the Patuha valley.

Buni River (Indonesian: Ci Buni, Sungai Cibuni) is a river in southern West Java, Indonesia. The 109-km-long river flows in the Bandung and Cianjur regencies, with the upstream at the west slope of Mount Patuha and discharge into the Indian Ocean. ^{[2] [3]}

Geography

The river flows in the southwest area of Java with predominantly tropical rainforest climate (designated as Af in the Köppen-Geiger climate classification). ^[4] The annual average temperature in the area is 18 °C. The warmest month is October, when the average temperature is around 20 °C, and the coldest is August, at 18 °C. ^[5] The average annual rainfall is 3766 mm. The wettest month is December, with an average of 570 mm rainfall, and the driest is September, with 89 mm rainfall. ^[6]

Hidrology

Ci Buni is the main river in the Cibuni river system, covering a total area of 1,435 km² (554 sq mi) across three regencies, including Cianjur, Bandung and Sukabumi . The upper part of the Cibuni Basin is adjacent to the upper part of the Citarum Basin in the north, where the flow of the Citarum River goes northward in Java and flows into the Java Sea. Meanwhile, the Cibuni Basin directs its stream southward and flows into the Indian Ocean. ^[7]

The upstream is located in Rancabali of Bandung Regency, then it flows to the southwest direction to Pasirkuda, Tanggeung, Kadupandak, and Agrabinta (all in Cianjur Regency) then turns to the southeast passing Sindangbarang, Cianjur at the south coast of Java. ^[8] The main tributaries of Ci Buni are:

1. Cijampang
2. Cilumut
3. Cibangoah
4. Cidolog
5. Cikarang
6. Cibalapulang

With the high rainfall between 2239 mm to 5579 mm, the river has high debit and large watershed area for the population to be the source of drinking water, irrigation and washing. ^[8] Along the stream is a topical forest with diverse plants, fish, birds, boars, apes, wild cats and reptiles. ^[9] Closer to the ocean, the river mouth widens to almost 200 m and hosts sweet water crocodiles. ^[9]

See also

• Catchment hydrology
• Drainage divide
• Drainage basins of the South Coast of Java
• List of rivers of Java
• List of rivers of Indonesia
• List of drainage basins of Indonesia

References

1. Hukum Online. "Keputusan Menteri Kehutanan No. SK.511/MENHUT-V/2011" (in Indonesian).
2. Ci Buni 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. 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: 1633–1644. doi: 10.5194/hess-11-1633-2007 . Retrieved 30 January 2016.
5. "NASA Earth Observations Data Set Index". NASA. 30 January 2016. Archived from the original on 10 May 2020. Retrieved 31 May 2018.
6. "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 May 2018.
7. "Peta Interaktif". WebGIS MenLHK (in Indonesian).
8. Dwi Kurnia Adi Yuda. Kajian Pembangunan Waduk Cibuni Sebagai Upaya Pemenuhan Kebutuhan Air Baku Di Wilayah Kabupaten Cianjur Bagian Selatan Archived 2017-09-06 at the Wayback Machine . JBPTITBPP. 2009.
9. Flora and Fauna of Cibuni