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| HAL : hal-00464061, version 1 |
| Fiche détaillée |  Récupérer au format |
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| Geocarto International 5, 3 (1990) 31-36 |
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| Monitoring the decrease of Lake Chad from space |
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| Lucien Wald 1 |
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| (1990) |
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| Observations from space of the open water areas within Lake Chad are presented. They complement and sustain the earlier study of Mohler et al. (1989), which demonstrates a decrease of about 90 percent in surface between 1966 and 1986. Further, Meteosat images were processed to obtain weekly maps of albedo following the scheme of Moussu et al. (1989). The analysis of these maps throughout the year reveals the functioning of the lake as well as the large variability of the open water areas during a year. |
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| 1 : | Centre de Télédétection et d'Analyse des Milieux Naturels (CTAMN) |
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Mines ParisTech |
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| Domaine | : | Planète et Univers/Sciences de la Terre/Climatologie Sciences de l'environnement/Milieux et Changements globaux Sciences de l'Homme et Société/Géographie Planète et Univers/Océan, Atmosphère Sciences de l'ingénieur/Traitement du signal et de l'image Informatique/Traitement du signal et de l'image |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00464061, version 1 | |
| http://hal-ensmp.archives-ouvertes.fr/hal-00464061 | |
| oai:hal-ensmp.archives-ouvertes.fr:hal-00464061 | |
| Contributeur : Lucien Wald | |
| Soumis le : Mercredi 14 Avril 2010, 10:16:15 | |
| Dernière modification le : Mercredi 14 Avril 2010, 15:02:01 | |
