The Bian River or Mbian River is a river of western part of Papua, in the province of Papua, Indonesia.[1] Its total length is 580.6 km and width around 70 – 1447.1 m.[2] Some 900 people in its upper course are said to speak the language Bian Marind.[3]
Bian River Wai Bian, Bian-rivier, Sungai Bian | |
---|---|
Location | |
Country | Indonesia |
State | Papua |
Physical characteristics | |
Source | Butiptiri |
• location | Southeast of Asike |
Mouth | Arafura Sea |
• location | District of Okaba, Merauke |
Length | 580.6 km (360.8 mi) |
Width | |
• minimum | 70 m (230 ft) |
• maximum | 1,447.1 m (4,748 ft) |
The river flows in the southern area of Papua with predominantly tropical rainforest climate (designated as Af in the Köppen-Geiger climate classification).[4] The annual average temperature in the area is 23 °C. The warmest month is October, when the average temperature is around 25 °C, and the coldest is June, at 20 °C.[5] The average annual rainfall is 2952 mm. The wettest month is May, with an average of 405 mm rainfall, and the driest is August, with 62 mm rainfall.[6]
In the district of Muting (Merauke Regency), the Bian River is a nature reserve by the order of the Ministry of Forestry[7] as the habitat of various protected flora and fauna, among others: Archerfish and Asian arowana.[8]