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| Format: | Artículo científico |
| Language: | es |
| Published: |
Universidad Nacional Autónoma de México
2001
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| Online Access: | https://www.redalyc.org/articulo.oa?id=56904602 |
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Table of Contents:
- Detección de cambios en la morfología litoral de Punta Zacatal y parte occidental de Isla del Carmen, Campeche, mediante el análisis multitemporal de imágenes de satélite Alvaro Gerardo Palacio Aponte Ciencias de la Tierra Coastiine changes near infrared bands During the last 25 years. significant geomorphological changes have been detected in the coastiline of PuntaZacatal and the western region of isla del Carmen, Campeche, as consequence of the current littoral dynamics andthe influence of urban and industrial development.In order to detect such changes, a color overlay and composition image analysis was carried out using three LandsatMSS satellite images dated 1974, 1986 and 1992. A near-infrared band (0.8-I.l!~m) was applied to each primarycolor; assigning color ta high-reflectance values showing changes in land distribution. And absence of color to waterbodies and land that remained unchanged. The color presence/absence relationship for each mage allowed to detectcoastal accretion, erosion and stable areas in a false-color composite. Aflerwards a supervised classification wascanducted to obtain areas and percentages, which were verified by means of multi-temporal photointerpretation andGPS fielidwork validation. 2001 artículo científico 0188-4611 https://www.redalyc.org/articulo.oa?id=56904602 es http://www.redalyc.org/revista.oa?id=569 Investigaciones Geográficas (Mx) application/pdf Universidad Nacional Autónoma de México Investigaciones Geográficas (Mx) (México) Num.46