Sissa River Ai Sissa, Ai Sisa, Waesesa, Wae Woki River | |
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Native name | Aesesa (Indonesian) |
Location | |
Country | Indonesia |
State | East Nusa Tenggara |
Physical characteristics | |
Source | Inielika |
• location | Flores |
• elevation | 1,400 m (4,600 ft) |
Mouth | Flores Sea |
• coordinates | 8°29′S121°18′E / 8.483°S 121.300°E |
Length | 87 km (54 mi) |
Basin size | 1,230 km2 (470 sq mi) |
Discharge | |
• average | 7.5 m3/s (260 cu ft/s) |
The Sissa River (Aesesa River) is a river of Flores, East Nusa Tenggara, Indonesia. [1] [2] The 87-km river flows from a southwest to northeast direction, with the upstream at Mount Inielika north of Bajawa, Ngada Regency, and discharges into the Flores Sea near Mbay, Nagekeo Regency.
The watershed (Indonesian: Daerah Aliran Sungai/DAS) Aesesa has an area of 1,230 km2 with a round form, comprising two regencies: Ngada Regency and Nagekeo Regency. The upstream at Ngada Regency near Bajawa is called "Wae Woki River". The major tributaries are:
Aesesa river has a length of 87 km [3] with an average discharge of around 7.5 m3/second [4]
The inhabitants along the Aesesa River use the water for agriculture, with the help of "Sutami Dam" at Nggolo Mbay, District of Aesesa, Nagekeo Regency which distributes the water to farmlands around 6,452 hectares in Nagekeo Regency at an average discharge of 14.69 m3/second. [5] Upstream, there are several waterfalls, like "Ogi Waterfall" and "Soso Waterfall". Ogi waterfall has a height of more than 30 meters and is utilized as a major tourist attraction of Bajawa. [6]
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The river flows in the middle to the north of Flores with predominantly tropical savanna climate (designated as Aw in the Köppen-Geiger climate classification). [8] The annual average temperature in the area is 26 °C. The warmest month is November, when the average temperature is around 30 °C, and the coldest is February, at 23 °C. [7] The average annual rainfall is 1686 mm. The wettest month is January, with an average of 302 mm rainfall, and the driest is September, with 8 mm rainfall. [9]
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