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Apport de la télédétection à l'inventaire et à la gestion des ressources en eau

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  • M. Lenco

Abstract

[fre] La télédétection aérienne ou par satellite fournit des résultats spectaculaires dans le domaine de l'eau où d'ores et déjà des méthodes de traitement et d'interprétation s'avèrent opérationnelles. La photo-interprétation d'images et les traitements informatiques font apparaître des phénomènes reconnus et classés en fonction de leur nature et de leur intensité, et ils permettent l'obtention de cartes par voie automatisée ainsi que le calcul des surfaces correspondant aux différentes catégories. La télédétection apparaît comme un outil précieux pour dresser des inventaires et surtout gérer les ressources en eau en fonction des disponibilités et des besoins d'information exprimés par les responsables de l'hydrologie, de l'agriculture, de l'urbanisation et de l'industrie, de l'environnement, de l'aménagement du territoire et de la planification régionale. Des exemples tirés d'expériences nord-américaines et françaises illustrent quelques possibilités offertes par ce nouveau moyen d'investigation rapide et souvent peu coûteux. [eng] The contribution of teledetection to the inventory and management of water resources - Télédétection by plane or satelite provides spectacular results where water is concerned as in this field methods of interpretation are already operational. Photo-interpretation of images and their computerization show up phenomena that are recognized and classified according to their nature and their intensity. They enable maps to be mechanically drawn up and the areas corresponding to the different categories to be calculated. Télédétection seems to be an invaluable tool for drawing up inventories and above all for managing water resources according to what is available and to the need for information expressed by water experts, farming, town planning, industry, environment, country planning, and regional planning. Examples drawn from experiments in France and in North America show some of the possibilities afforded by this new, quick and often inexpensive means of investigation.

Suggested Citation

  • M. Lenco, 1978. "Apport de la télédétection à l'inventaire et à la gestion des ressources en eau," Économie rurale, Programme National Persée, vol. 127(1), pages 35-36.
  • Handle: RePEc:prs:recoru:ecoru_0013-0559_1978_num_127_1_2589
    DOI: 10.3406/ecoru.1978.2589
    Note: DOI:10.3406/ecoru.1978.2589
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