Geography of Jersey

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Jersey
Native name: Jèrri
Jersey-islands.png
Map of islands of Bailiwick of Jersey
Geography of Jersey is located in France
Geography of Jersey

Jersey (off the coast of France)
Geography
Location English Channel
Coordinates 49°11′24.06″N 2°6′36″W / 49.1900167°N 2.11000°W / 49.1900167; -2.11000Coordinates: 49°11′24.06″N 2°6′36″W / 49.1900167°N 2.11000°W / 49.1900167; -2.11000
Archipelago Channel Islands
Area 119.49 km2 (46.14 sq mi)
Length 14 km (8.7 mi)
Width 8 km (5 mi)
Coastline 70 km (43 mi)
Highest elevation 143 m (469 ft)
Highest point Les Platons
Country
United Kingdom
Crown dependency  Jersey
Demographics
Population 97,8571 (as of 2011)
Density 819 /km2 (2,121 /sq mi)
Ethnic groups English and Norman-French descent. Portuguese and Polish minorities

This article describes the geography of Jersey, an island territory in the English Channel. The island of Jersey has an area of 119 square kilometres, with 70 kilometres of coastline. Jersey claims a territorial sea of 3 nmi (5.6 km; 3.5 mi) and an exclusive fishing zone of 12 nmi (22.2 km; 13.8 mi).

Jersey is the largest and southernmost of the Channel Islands. It is located north of Brittany and west of the Cotentin Peninsula in Normandy. About 30% of the population of the island is concentrated in Saint Helier, which is a parish and the capital town of the island.

Physical geography

Besides the main island, the bailiwick includes other islets and reefs with no permanent population: Les Écréhous, Les Minquiers, Les Pierres de Lecq, Les Dirouilles.

The highest point in the island is Les Platons on the north coast, at 136 metres (446 ft). Parts of the parish of St Clement in the south were previously below sea-level but the construction of a seawall and infilling of low land has probably left only a few pockets of land below mean sea level. The terrain is generally low-lying on the south coast, with some rocky headlands, rising gradually to rugged cliffs along the north coast. On the west coast there are sand dunes. Small valleys run north to south across the island. Very large tidal variation exposes large expanses of sand and rock to the southeast at low tide.

Climate

The climate in the island is temperate, with mild winters and cool summers. Although the minimum daily temperature can fall below freezing in the winter, the monthly average temperature does not. The Atlantic Ocean has a moderating effect on temperature in Jersey, as water has a much greater specific heat capacity than air and tends to heat and cool slowly throughout the year. This has a warming influence on coastal areas in winter and a cooling influence in summer.

The highest temperature recorded was 36.0 °C (96.8 °F) on 9 August 2003, and the lowest temperature recorded was −10.3 °C (13.5 °F) on 5 January 1894. By comparison, higher temperatures are found in mainland United Kingdom, which achieved 38.5 °C (101.3 °F) in Faversham, Kent on 10 August 2003. The impact of the Atlantic Ocean and costal winds ensure that Jersey is cooler than the UK during the summer months.

Snow falls rarely in Jersey, some years will pass with no snow fall at all.

Climate data for Jersey
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average high °C (°F) 8.3
(46.9)
8.4
(47.1)
10.4
(50.7)
12.5
(54.5)
15.8
(60.4)
18.4
(65.1)
20.4
(68.7)
20.6
(69.1)
18.7
(65.7)
15.4
(59.7)
11.7
(53.1)
9.2
(48.6)
14.2
(57.6)
Average low °C (°F) 4.3
(39.7)
3.8
(38.8)
5.3
(41.5)
6.5
(43.7)
9.3
(48.7)
11.8
(53.2)
13.9
(57)
14.3
(57.7)
12.9
(55.2)
10.6
(51.1)
7.5
(45.5)
5.0
(41)
8.8
(47.8)
Rainfall mm (inches) 93.1
(3.665)
68.9
(2.713)
66.1
(2.602)
56.4
(2.22)
55.6
(2.189)
47.5
(1.87)
44.6
(1.756)
49.5
(1.949)
63.9
(2.516)
103.4
(4.071)
105.4
(4.15)
111.3
(4.382)
865.8
(34.087)
Avg. rainy days (≥ 1.0 mm) 14.8 11.7 11.7 10.1 8.9 7.5 7.1 7.3 9.2 13.6 15.2 15.2 132.2
Mean monthly sunshine hours 66.1 91.6 134.0 196.5 236.7 245.4 252.7 235.3 184.6 118.8 79.9 63.2 1,904.8
Source: Met Office2

Natural resources

The main natural resource on this island is arable land. 66% of the island's land is used as such, and the remaining 34% is used for other purposes.

Environment

Current environmental issues for Jersey include waste disposal, air pollution and traffic.

References

  1. ^ 2011 census results
  2. ^ "Jersey: Climate Period: 1981-2010". Met Office. Retrieved February 5, 2013. 

External links

This exaggerated-colour image of Jersey was taken on September 23, 2000, by NASA's Terra satellite.
topographic relief image







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