Lake Khanka
Lake Khanka (Russian: о́зеро Ха́нка; simplified Chinese: 兴凯湖; traditional Chinese: 興凱湖; pinyin: Xīngkǎi Hú, also known as Lake Xingkai), is a freshwater lake located on the border between Primorsky Krai, Russia and Heilongjiang province, Northeast China (at 45°0′N 132°25′E / 45.000°N 132.417°E / 45.000; 132.417). At its closest point, it is situated 79 kilometres (49 mi) east of the city of Jixi, Heilongjiang. The area of the lake is 4,190 square kilometres (1,620 sq mi), of which 3,030 km2 (1,170 sq mi) (72%) is located in Russia and 1,160 km2 (450 sq mi) (28%) in China.
Physical data
The lake's drainage basin covers an area of 16,890 square kilometres (6,520 sq mi), of which 97% is in Russian territory. It has 4,000 to 4,400 km2 (1,500 to 1,700 sq mi) of water surface area. It is fed by 23 rivers (8 in China and 15 in Russia), but the only outflow of the lake is the Songacha River.
The lake's average depth is 4.5 metres (15 ft), while its maximum depth is 10.6 m (35 ft). Its average volume is 18.3 cubic kilometres (4.4 cu mi), though it can fill up to 22.6 km3 (5.4 cu mi). The lake belongs to the Ussuri River System, which is part of Amur River System. The maximum monthly mean temperature is 21.2 °C (70.2 °F) (July), while the minimum monthly mean temperature is −19.2 °C (−2.6 °F). Rainfall mainly occurs in summer, reaching 750 millimetres (30 in) annually.