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Geography of Tunisia

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Geography of Tunisia

Geography of Tunisia
Continent Africa
Region Northern Africa
Coordinates
Area Ranked 93rd
 • Total 163,610 km2 (63,170 sq mi)
 • Land 95%
 • Water 5%
Coastline 1,148 km (713 mi)
Borders Total land borders:
1,424 km
Algeria 965 km, Libya 459 km
Highest point Jebel ech Chambi
1,544 m
Lowest point Chott el Djerid
-17 m
Longest river Medjerda River
450 km

Tunisia is a country located in Northern Africa, bordering the Mediterranean Sea, between Algeria and Libya. Its geographic coordinates are . Tunisia occupies an area of 163,610 square kilometres, of which 8,250 are water. Tunisia borders Algeria for 965 km and Libya for 459 km.

Contents

  • Maritime claims 1
  • Physical geography 2
    • Climate 2.1
    • Largest cities 2.2
    • Natural resources 2.3
  • Environment 3
  • Extreme points 4
  • See also 5
  • References 6

Maritime claims

  • Contiguous zone: 24 nmi (44.4 km; 27.6 mi)
  • Territorial sea: 12 nmi (22.2 km; 13.8 mi)

Physical geography

Topographic map of Tunisia.

Tunisia is situated on the Mediterranean coast of North Africa, midway between the Atlantic Ocean and the Nile Delta. It is bordered by Algeria on the west and Libya on the south east. It lies between latitudes 30° and 38°N, and longitudes 7° and 12°E. An abrupt southward turn of the Mediterranean coast in northern Tunisia gives the country two distinctive Mediterranean coasts, west-east in the north, and north-south in the east

Tunisia is about the size of the American state of Wisconsin. Despite its relatively small size, Tunisia has great environmental diversity due to its north-south extent. Its east-west extent is limited. Differences in Tunisia, like the rest of the Maghreb, are largely north-south environmental differences defined by sharply decreasing rainfall southward from any point. The Dorsal, the eastern extension of the Atlas Mountains, runs across Tunisia in a northeasterly direction from the Algerian border in the west to the Cape Bon peninsula in the east. North of the Dorsal is the Tell, a region characterized by low, rolling hills and plains, again an extension of mountains to the west in Algeria. In the Khroumerie, the northwestern corner of the Tunisian Tell, elevations reach 1,050 meters (3,440 feet) and snow occurs in winter. The Sahel, a broadening coastal plain along Tunisia's eastern Mediterranean coast, is among the world's premier areas of olive cultivation. Inland from the Sahel, between the Dorsal and a range of hills south of Gafsa, are the steppes. Much of the southern region is desert. Tunisia has a coastline 1,148 kilometres (713 miles) long. In maritime terms, the country claims a contiguous zone of 24 nautical miles (44 kilometres; 28 miles), and a territorial sea of 12 nautical miles (22 kilometres; 14 miles).

Climate

Tunisia's climate is hot-summer Mediterranean climate (Köppen climate classification Csa) in the north, where winters are mild with moderate rainfall and summers are hot and dry. Temperatures in July and August can exceed 40 °C (104 °F) when the tropical continental air mass of the desert reaches the whole Tunisia. Winters are mild with temperatures rarely exceeding 20 °C (68 °F) (exception is the south-west of the country). The south of the country is desert. The terrain in the north is mountainous, which, moving south, gives way to a hot, dry central plain. As we go to the south, the climate naturally becomes hotter, drier and sunnier. The southern part has therefore a hot desert climate (Köppen climate classification BWh) with extremely hot summers, warm winters and very low annual rainfall amount. Daytime temperatures consistently turn around 45 °C (113 °F) during summers. However, the warmth of winters is only during daytime because nights can be cold in the desert. A series of salt lakes, known as chottzz or shatts, lie in an east-west line at the northern edge of the Sahara Desert, extending from the Gulf of Gabes into Algeria. The lowest point is Chott el Djerid, at − 17 m (−55.8 ft), and the highest is Jebel ech Chambi, at 1,544 metres (5,066 ft). Annual average rainfall amount is lower than 500 mm (19.68 in) nearly everywhere in Tunisia. Tunisia is therefore a dry, semi-arid country. Areas with a pre-Saharan climate receive below 250 mm (9.84 in) and areas with a typical Saharan climate receive below 100 mm (3.94 in) of annual average precipitation. The southernmost part receives rainfall as low as 50 mm (1,97 in) in areas around El Borma, along the Algerian border.

Largest cities

Cities in Tunisia
Rank Name Population, 2006 Population, 2008 Governorate
1. Tunis 989,000 993,000 Tunis
2. Sfax 881,600 904,900 Sfax
3. Nabeul 714,500 733,500 Nabeul
4. Sousse 568,100 590,400 Sousse
5. Ben Arous 531,200 555,700 Ben Arous
6. Kairouan 550,300 553,800 Kairouan
7. Bizerte 532,900 538,900 Bizerte
8. Monastir 475,200 494,900 Monastir
9. Ariana 447,200 473,100 Ariana
10. Medenine 440,200 447,400 Medenine

source: Institut National de la Statistique - Tunisie

Natural resources

Tunisia possesses petroleum, phosphates, iron ore, lead, zinc, salt and arable land. 3,850 km² of land is irrigated in Tunisia. The use of land in the country is demonstrated in the following table.

Land use
Use Percentage of Area (2011)
arable land 17.35%
permanent crops 14.63%
other 68.02%

Environment

Current environmental issues for Tunisia include:

Tunisia is a party to the following international agreements: Biodiversity, Climate Change, Climate Change-Kyoto Protocol, Desertification, Endangered Species, Environmental Modification, Hazardous Wastes, Law of the Sea, Marine Dumping, Ozone Layer Protection, Ship Pollution (MARPOL 73/78) and Wetlands. Tunisia has signed, but not ratified the Marine Life Conservation agreement.

Tunisia, like other North African countries, has lost much of its prehistoric biodiversity due to the ongoing expanding human population; for example, until historic times there was a population of the endangered primate Barbary Macaque, Macaca sylvanus.[1] The Monk Seal is now extirpated from Tunisia.[2]

Extreme points

This is a list of the extreme points of Tunisia, the points that are farther north, south, east or west than any other

  • *Note: this is also the northern-most point of the African continent

See also

References

  1. ^ C. Michael Hogan, (2008) , Globaltwitcher.com, ed. Nicklas StrombergBarbary Macaque: Macaca sylvanus
  2. ^ Anthony Ham and Abigail Hole (2004) Tunisia, third ed., published by Lonely Planet, 312 pages, ISBN 1-74104-189-9
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