Depraetere Christian. (2016). The island effect on the global sclae : size, ranking and shape of oceanic islands. In :
Kelman I. (ed.), Baldacchino G. (ed.). Island studies : critical concepts in geography, vol. 4. 21 p. (Critical Concepts in Geography). ISBN 978-1-138-01459-6.
Titre du document
The island effect on the global sclae : size, ranking and shape of oceanic islands
Année de publication
2016
Type de document
Partie d'ouvrage
Auteurs
Depraetere Christian
In
Kelman I. (ed.), Baldacchino G. (ed.) Island studies : critical concepts in geography, vol. 4
Source
2016,
21 p. (Critical Concepts in Geography). ISBN 978-1-138-01459-6
Much has been said about islands but no global definition of this geographical phenomenon has so far been made available. A normative approach is consequently difficult to adopt. A database was put together involving 1,085 islands in the size range of 100km2 to 1,000,000km2. Each digitized file of the coastline is linked to the following information: name, country, basic planimetric figures (surface, coastal length), location (latitude and longitude in degrees), and scale of the map used for planimetric purposes. From this sample, a study of the relationships between surfaces and frequencies highlights a simple statistical law which can be related to properties of a fractal structure. A surface area-based hierarchical method is presented to depict the degree and type of ‘cephalic’ structure of the archipelago. Some coastal form indices are presented, with their significance related to the geomorphological context of some islands.
Plan de classement
Géographie générale [021GEOGEN]
;
Applications diverses [122APPLIC]
Descripteurs
ILE ; ARCHIPEL ; BASE DE DONNEES ; HIERARCHIE ; MORPHOLOGIE ; COTE ; FRACTAL ; SUPERFICIE ; INSULARITE
