List of countries by length of coastline

An example of the coastline paradox. If the coastline of Britain is measured using a scale interval of 200 km (left), then the length of the coastline is about 2400 km. Using a scale interval of 50 km (right), the length of the coastline is about 3400 km.

Overview

The coastline paradox states that a coastline does not have a well-defined length. Measurements of the length of a coastline behave like a fractal, being different at different scale intervals (distance between points on the coastline at which measurements are taken). The smaller the scale interval (meaning the more detailed the measurement), the longer the coastline will be.[Note 1] This "magnifying" effect is greater for convoluted coastlines than for relatively smooth ones. Treated as fractals, coastlines can however be measured. For example, the coast of Great Britain has a size of about 28000 km1.43, which is called its Hausdorff measure.[1]

  • Data marked The World Factbook or TWF covers 198 countries and 55 territories, from the book published by the Central Intelligence Agency. In addition to coastline lengths, this is the source of the land area used to calculate the "coast/area ratio" for both TWF and WRI (see below) coastline measurement. This ratio measures how many meters of coastline correspond to every square kilometer of land area. The ratio illustrates the ease of accessibility to the country's coast from every point in its interior. Therefore, an island country like Maldives, or a country carved by the sea like Greece, is more likely to have a high ratio, while a landlocked country will have a ratio of zero. Note that the scales at which The World Factbook figures were measured are not stated, nor is it known whether the figures are all reported using the same scale, thus the figures are not necessarily comparable across different countries.
  • Data marked World Resources Institute or WRI covers 182 independent countries and 13 dependencies, based on data calculated in 2000 from the World Vector Shoreline, United States Defense Mapping Agency, 1989. It may include territories whose status have changed. According to their technical notes, the "coastline length was derived from the World Vector Shoreline database at 1:250,000 scale. The estimates (...) were calculated using a Geographic Information System (GIS) and an underlying database consistent for the entire world. The methodology used to estimate length is based on the following: 1) A country's coastline is made up of individual lines, and an individual line has two or more vertices and/or nodes. 2) The length between two vertices is calculated on the surface of a sphere. 3) The sum of the lengths of the pairs of vertices is aggregated for each individual line, and 4) the sum of the lengths of individual lines was aggregated for a country. In general, the coastline length of islands that are part of a country, but are not overseas territories, are included in the coastline estimate for that country (e.g., Canary Islands are included in Spain). Coastline length for overseas territories and dependencies are listed separately. Disputed areas are not included in country or regional totals."[2]

List

Note: non-sovereign areas in italic

Country The World Factbook[3] World Resources Institute[2] Land area
km2 (TWF)[4]
Coast/area ratio (m/km2)
# km # km (TWF) (WRI)
 World[Note 2]1,162,3061,634,701148,940,0007.8011.0
 Others[Note 3]356,000
 Canada1202,0801265,5239,093,50722.229.2
 Norway258,133753,199304,282191175
 Indonesia354,720495,1811,811,56930.252.5
 Greenland[Note 4]44,0872,166,08620.4
 Russia437,653[Note 5]3110,31016,377,7422.306.74
 Philippines536,289833,900341,353122114
 Japan629,7511229,020364,48581.679.6
 Australia725,760666,5307,682,3003.358.66
 United States819,9242133,3129,147,5932.1814.6
 Antarctica17,96814,000,0001.28
 New Zealand915,1341717,209264,53757.265.1
 China1014,5001130,0179,326,4101.553.22
 Greece1113,6761915,147131,957104115
 United Kingdom1212,4291619,717241,93051.481.5
 Mexico139,3301423,7611,943,9454.8012.2
 Italy147,600289,226294,14025.831.4
 Croatia157,368[5]425,66455,974112101
 Denmark167,314445,31642,434172125
 Turkey177,200318,140783,5629.1910.4
 India187,5001817,1812,973,1932.355.78
 Chile196,435578,563743,8128.65106
 Brazil207,491933,3798,459,4170.8863.95
 Micronesia, Federated States of216,112921,2957028,7101,840
 Solomon Islands225,313269,88027,986190353
 Papua New Guinea235,1521520,197452,86011.444.6
 Argentina244,989308,3972,736,6901.823.07
 Iceland254,970298,506100,25049.684.8
 Spain[Note 6]264,964347,268498,9809.9514.6
 Metropolitan France274,853337,330640,4277.5811.4
 Madagascar284,828259,935581,5408.3017.1
 Malaysia294,675279,323328,65714.228.4
 Estonia303,794612,95642,38889.569.7
 Cuba313,7352114,519109,82034.0132
 Svalbard3,58762,04557.8
 Bahamas, The323,5422411,23810,0103541,120
 Vietnam333,444[Note 7]2311,409310,07011.136.8
 Thailand343,219357,066510,8906.3013.8
 Sweden353,2181326,384410,3357.8464.3
 Colombia363,208415,8751,038,7003.095.66
 Coral Sea Islands3,095<3>1,000,000
 Somalia373,333503,898627,3375.316.21
 Iran383,294[Note 8]405,8911,636,1001.593.85
 French Southern and Antarctic Lands2,948.4[Note 9]7,667.6385
 Venezuela392,800376,762882,0503.177.67
 South Africa402,798513,7511,214,4702.303.09
 Ukraine412,782454,953579,3304.808.55
 Saudi Arabia422,640327,5722,149,6901.233.52
 Vanuatu432,528593,13212,189207257
 French Polynesia2,5255,8303,8276601,520
 Korea, North442,495494,009120,40820.733.3
 Panama452,490435,63774,34033.575.8
 Mozambique462,470366,942786,3803.148.83
 Egypt472,450395,898995,4502.465.92
 Peru482,414553,3621,279,9961.892.63
 Korea, South492,4132212,47896,92024.9129
 Germany502,389523,624348,6726.8510.4
 New Caledonia2,2543,62418,275123198
 Ecuador512,237474,597276,8418.0816.6
 Eritrea522,234[5]543,446101,00022.134.1
 Oman532,092652,810309,5006.769.08
 Burma541,9302014,708653,5082.9522.5
 Yemen551,906583,149527,9683.615.96
 Morocco561,835732,009446,3004.114.50
 Portugal571,793632,83091,47019.630.9
 Haiti581,771771,97727,56064.371.7
 Libya591,770712,0251,759,5401.011.15
 Angola601,600672,2521,246,7001.281.81
 Namibia611,572841,754823,2901.912.13
 Taiwan621,566.3742,00732,26048.662.2
 Palau631,5194593,310
 Northern Mariana Islands1,4824643,190
 Ireland641,448386,43768,88321.093.4
 Tanzania651,424533,461885,8001.613.91
 Sri Lanka661,340642,82564,63020.743.7
 United Arab Emirates671,318622,87183,60015.834.3
 Costa Rica681,290702,06951,06025.340.5
 Dominican Republic691,288881,61248,32026.733.4
 Falkland Islands1,28812,173106
 Finland701,2501031,119303,8154.11102
 Tunisia711,148791,927155,3607.3912.4
 Kiribati721,143781,9618111,4102,420
 Fiji731,129464,63818,27461.8254
 Faroe Islands1,1171,393802
Western Sahara1,110266,0004.17
 Pakistan741,046662,599881,9121.192.95
 Jamaica751,02210289510,83194.482.6
 Algeria76998901,5572,381,7410.4190.654
 Cape Verde77965971,1214,033239278
  Spratly Islands 926<5>200,000
 Nicaragua78910801,915119,9907.5816.0
 Gabon79885722,019257,6673.437.84
 Nigeria80853603,122910,7680.9373.43
 Sudan81853682,2451,861,484[6]0.4581.21
 Honduras82832[Note 10]821,878111,8907.4416.8
 Mauritania83754941,2681,030,7000.7321.23
 Hong Kong7339551,054695906
 Timor-Leste8470614,87447.5
 British Indian Ocean Territory6986011,600
 Uruguay85660981,096175,0153.776.26
 Cyprus866481126719,24170.172.6
 Maldives87644752,0022982,1606,720
 Bangladesh88580563,306130,1684.4625.4
 Liberia8957910484296,3206.018.74
 Qatar9056310090911,58648.678.5
 Ghana91539106758227,5332.373.33
 Kenya92536891,586569,1400.9422.79
 Senegal93531911,327192,5302.766.89
  Paracel Islands 5187.7566,800
 Côte d'Ivoire94515105797318,0031.622.51
 Puerto Rico5011,0948,87056.5123
 Kuwait9549910775617,81828.042.4
 Latvia9649811656662,2498.009.09
 Seychelles974911097474551,0801,640
 Guyana98459951,154196,8492.335.86
 Netherlands99451[Note 11]811,91433,89313.356.5
 Cambodia100443961,127176,5152.516.38
 Poland101440991,032312,6791.413.30
 Tonga1024191019097175841,270
 Samoa1034031204632,821143164
 Cameroon104402831,799469,4400.8563.83
 Sierra Leone104402861,67771,6205.6123.4
 Guatemala106400122445107,1593.734.15
 Turks and Caicos Islands389948410
 Belize107386761,99622,80616.987.5
 Suriname107386114620156,0002.473.97
 Marshall Islands109370.4692,1061812,05011,600
 Curaçao364444820
 Albania11036211364927,39813.223.7
 Trinidad and Tobago1103621107045,12870.6137
 Bulgaria112354121457108,4893.264.21
 Guinea-Bissau113350573,17628,12012.4113
 Comoros1143401194692,235152210
 Guinea115320871,615245,7171.306.57
 Djibouti11631412344323,18013.519.1
 Georgia11731012437669,7004.455.39
 El Salvador11830710875620,72114.836.5
 Equatorial Guinea11929611560328,05110.621.5
 Montenegro120293.513,81251.37
 Israel121273[Note 12]13620520,33013.410.1
 Lebanon12222512529410,23022.028.7
 Romania122225111696229,8910.9793.03
 São Tomé and Príncipe124209128269964217279
 Malta125252.81137198316800627
 Singapore126193129268687281390
 Syria126193134212183,6301.051.15
 U.S. Virgin Islands1883903465431,130
 Mauritius1281771184962,03087.2244
 Congo, Republic of the129169135205341,5000.4950.600
 Bahrain130161132255760212336
 Brunei1301611272695,26530.651.1
 Cayman Islands160264606
 Isle of Man160572280
 Saint Lucia132158139166606261274
 Antigua and Barbuda133153126289442.6346653
 Dominica134148141152751197202
 Christmas Island138.91351,030
 Saint Kitts and Nevis135135261517
 Wallis and Futuna129142908
 Guam125.5544231
 Jan Mayen124.1377329
 Benin136121140153110,6221.091.38
 Grenada136121133252344352733
 Cook Islands138120236508
 Saint Pierre and Miquelon120242496
 American Samoa116199583
 Bermuda103180541,9103,330
 Heard Island and McDonald Islands101.9412247
 Tokelau101128,420
 Saint Helena, Ascension and Tristan da Cunha100[Note 13]308325
 Barbados1399714397430226226
 Lithuania1409013125862,6801.444.12
 United States Pacific Island Wildlife Refuges85.722.413,820
 Saint Vincent and the Grenadines14184130264389216679
 Akrotiri and Dhekelia83.8253.8[6]330
 British Virgin Islands80151530
 Gambia1428011750310,0008.0050.3
 Ashmore and Cartier Islands74.1514,800
 Jersey70116603
 Aruba68.5107180381594
 Belgium14366.51447630,2782.202.51
 Niue14464260246
 Anguilla6191670
 Saint Martin58.9[Note 14]54.41,080
 Iraq14558142105437,3670.1330.240
 Togo146561455354,3851.030.975
 Pitcairn Islands51471,090
 Guernsey5078641
 Slovenia14746.61464120,1512.312.03
 Macau413628.21,4501,280
 Gaza Strip40360111
 Montserrat40102392
 Congo, Democratic Republic of the148371381772,267,0480.01630.0781
 Norfolk Island3236889
 Nauru14930211,430
 Bouvet Island29.649604
 Cocos (Keeling) Islands26141,860
 Jordan15026[Note 15]1472788,8020.2930.304
 Tuvalu1512426923
 Bosnia and Herzegovina152201482351,1870.3910.449
 Wake Island19.36.52,970
 Gibraltar126.51,850
 Clipperton Island11.161,850
 Navassa Island85.41,480
 Monaco1534.122,050
 Saint Barthélemy NA21
 Sint MaartenNA[Note 16]340.0147
 South Georgia and the South Sandwich IslandsNA3,9030.000128
 Kazakhstan1540[Note 17]484,5282,699,70001.68
 Turkmenistan1550[Note 18]931,289469,93002.74
 Azerbaijan1560[Note 19]10387182,629010.5
 West Bank0[Note 20]5,6400
 Afghanistan15801490652,23000
 Andorra15904680
 Armenia1600149028,20300
 Austria1610149082,44500
 Belarus16201490202,90000
 Bhutan1630149038,39400
 Bolivia164014901,083,30100
 Botswana16501490566,73000
 Burkina Faso16601490273,80000
 Burundi1670149025,68000
 Central African Republic16801490622,98400
 Chad169014901,259,20000
 Czech Republic1700149077,24700
 Ethiopia171014901,000,00000
 Hungary1720149089,60800
 Kyrgyzstan17301490191,80100
 Laos17401490230,80000
 Lesotho1750149030,35500
 Liechtenstein17601600
 Luxembourg177014902,58600
 Macedonia1780149025,43300
 Malawi1790149094,08000
 Mali180014901,220,19000
 Moldova1810149032,89100
 Mongolia182014901,553,55600
   Nepal18301490143,35100
 Niger184014901,266,70000
 Paraguay18501490397,30200
 Rwanda1860149024,66800
 San Marino1870610
 Serbia188088,3610
 Slovakia1890149048,10500
 South Sudan1900644,329[6]0
 Swaziland1910149017,20400
  Switzerland1920149039,99700
 Tajikistan19301490141,51000
 Uganda19401490197,10000
 Uzbekistan1950851,707425,40004.01
  Vatican City19600.440
 Zambia19701490743,39800
 Zimbabwe19801490386,84700
 French Guiana763
 Guadeloupe581
 Martinique369
 Caribbean Netherlands361
 Réunion219

See also

Notes

  1. The smaller the scale interval mathematically, the more detailed and the "greater the scale of the map", in common usage. See scale (map).
  2. World total includes countries not listed and coastline for disputed areas.
  3. 95 nations and other entities are islands that border no other countries. For the list, see the reference below: "CIA World Factbook: Coastline".
  4. Greenland is an autonomous country within Denmark.
  5. Russia has an additional 850 km of coastline along the Caspian Sea, which is landlocked.
  6. Includes coastline length for the Canary Islands.
  7. Excludes minor outlying islands.
  8. Iran has an additional 784 km of coastline along the Caspian Sea, which is landlocked and Including 30 islands in the South and North Islands.
  9. Does not include Île Saint-Paul and Îles Crozet (data unavailable) or Adelie Land claim to Antarctica.
  10. Includes coastline in the Gulf of Fonseca (163 km).
  11. In 1900, the Dutch coastline measured approximately 1400 km. It has significantly been reduced by the closing of the Zuiderzee by the Afsluitdijk in 1932 (250 km) and the closing of several sea arms by the Delta Works (700 km).
  12. Israel has an additional coastline along the Dead Sea and the Sea of Galilee (both landlocked), with a total length of 63 km.
  13. Excluding Ascension Island (data unavailable).
  14. Figure represents coastline of entire island, including Sint Maarten (administered by the Netherlands).
  15. Jordan has an additional 50 km of coastline along the Dead Sea, which is landlocked.
  16. Coastline included in figure for Saint Martin (administered by France).
  17. Kazakhstan has a coastline with the Caspian Sea, which is landlocked, with a total length of 1,894 km.
  18. Turkmenistan has a coastline with the Caspian Sea, which is landlocked, with a total length of 1,768 km.
  19. Azerbaijan has a 713-km coastline along the Caspian Sea, which is landlocked.
  20. The West Bank has a 40-km coastline along the Dead Sea, which is landlocked.

References

  1. Measuring the Size of Britains Coast (German): https://upload.wikimedia.org/wikipedia/commons/6/62/K%C3%BCstenl%C3%A4nge_Gro%C3%9Fbritanniens.pdf%5Bpermanent+dead+link%5D
  2. 1 2 "Coastal and Marine Ecosystems — Marine Jurisdictions: Coastline length". World Resources Institute. Archived from the original on 2012-04-19. Retrieved 2012-03-18.
  3. CIA World Factbook: Coastline
  4. CIA World Factbook: Area
  5. 1 2 Includes coastline of minor outlying islands.
  6. 1 2 3 Figure represents total area rather than land area.

Further reading

  • Eric Bird (2011). "1.5 Coastline length". Coastal Geomorphology: An Introduction. John Wiley and Sons. ISBN 978-1-119-96435-3.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.