Ogan River

Ogan River is a river in South Sumatra, Indonesia.[1]

Ogan River
Sungai Ogan, Air Ogan, Aek Ogan
Location of river mouth
Ogan River (Indonesia)
Location
CountryIndonesia
Physical characteristics
SourceBarisan Mountains
 • locationSouth Sumatra

The Ogan River is a tributary of Musi River in Southern Sumatra. Flowing entirely in the South Sumatra province, it rises in Barisan Mountains (Bukit Barisan) and meanders slowly eastwards to join Musi River at Kertapati, Palembang.[2] The Ogan ranks as the third longest river in South Sumatra (behind Musi and Komering). The river either borders or cuts through the regency of South OKU, OKU, OKI, and Ogan Ilir.

Ogan and Pegagan tribe lived along the Ogan and its tributaries. Most were peasant or merchant. The river served first as vital transportation artery and communications link. Formed from thick layers of this river's silt deposits, the Ogan River Valley is one of the most fertile agricultural regions of the province.

Geography

The river flows in the southern area of Sumatra with predominantly tropical rainforest climate (designated as Af in the Köppen-Geiger climate classification).[3] The annual average temperature in the area is 24 °C. The warmest month is October, when the average temperature is around 26 °C, and the coldest is January, at 22 °C.[4] The average annual rainfall is 2902 mm. The wettest month is November, with an average of 435 mm rainfall, and the driest is August, with 83 mm rainfall.[5]

Ogan River
Climate chart (explanation)
J
F
M
A
M
J
J
A
S
O
N
D
 
 
341
 
 
25
20
 
 
275
 
 
25
21
 
 
326
 
 
26
21
 
 
363
 
 
26
22
 
 
161
 
 
26
21
 
 
128
 
 
27
22
 
 
146
 
 
26
21
 
 
83
 
 
26
21
 
 
83
 
 
29
20
 
 
171
 
 
31
21
 
 
435
 
 
29
21
 
 
389
 
 
26
22
Average max. and min. temperatures in °C
Precipitation totals in mm
Source: [4]

See also

References
  1. Rand McNally, The New International Atlas, 1993.
  2. Air Ogan – Geonames.org.
  3. 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.
  4. "NASA Earth Observations Data Set Index". NASA. 30 January 2016.
  5. "NASA Earth Observations: Rainfall (1 month – TRMM)". NASA/Tropical Rainfall Monitoring Mission. 30 January 2016.

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