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The Gulf of Bothnia
The northern Gulf of the Baltic Sea
Gulf of Bothnia
Swedish Language
As Bottniska Viken,
Finnish
Pohjan Lahti), is the northern gulf of the Baltic Sea, the west coast is
Sweden
The east coast is
Finland
. The Gulf of Bothnia covers an area of about 117,000 square kilometres (45,200 sq mi), is 725 kilometres (450 mi) long from north to south and 80 to 240 kilometres (50 to 150 mi) wide from east to west.
The southern mouth of the bay is almost enclosed by the Aland Islands. The sea is extremely low in salt and freezes for five months in winter.
- Chinese name
- The Gulf of Bothnia
- Foreign name
- Gulf of Bothnia
- Geographical position
- The northern Baltic Sea
- Area product
- 117000 km²
- Littoral state
- Sweden, Finland
- Innermost part
- 295 m (965 ft)
- Average depth
- About 60 m (200 ft)
catalogue
The Gulf of Bothnia
There are many sawmills along the coast. Of northern Europe on the Baltic Sea between Finland and Sweden. It is 650 kilometers long, 250 kilometers wide at its widest point, and covers an area of 117,000 square kilometers.
The average depth is 61 meters, and the deepest is 294 meters. Many rivers feed into it. The Gulf of Bothnia has a unique Marine environment, it is covered with snow for many months of the year, the cold temperature creates the unique environmental characteristics here, the biodiversity is not high, the salt content of the water is low, only 2‰. The freezing period is 3-5 months. The south Kevarken Strait leads to the Baltic Sea.
Main ports: Pori, Vasa, Oulu (Finland), Gavle, Umea (also translated as Umea) (Sweden) and so on.
Salt content: Due to the small exchange of seawater between the Baltic Sea and the outer sea, and the high latitude and low evaporation, the salinity is low. Moreover, the salinity of the sea gradually decreases from the outlet of the Baltic Sea to the inland part of the Gulf of Bothnia, which has the lowest salt content in the Baltic Sea, from 5-7 pSU in the south to 2-4 pSU in the north. Because the salt content is low, it is easy to freeze, so the freezing period is often as long as six months.
The Gulf of Bothnia is located north of 60° N latitude and has a cold climate with average temperatures of -5 to -10 ° C in January and 15-17 ° C in July. The sea temperature is low, below 0℃ in winter, the ice period is as long as 210 days, and the ice thickness is 17 meters. 18-20℃ in summer. Tidal range 0.2 m. Northwest of
Temperate continental climate
The precipitation is relatively small, concentrated in summer, the annual temperature difference is larger on the lee slope, the sea area is small, and the ocean water vapor is less.
