This case study discusses the utility of remote sensing images images for coastal zone mapping, for determining the priority areas of coastal repair and for the assessment of flood damage of the agricultural areas. Areas of erosion and accretion, mangrove forest depletion and agricultural land uses were identified. In addition, the identification of a series of recessional marine shorelines from SAR images have provide an understanding of marine transgression and sea level changes in coastal Guyana. In Jordan, there is an urgent need to manage and utilise the water resources in order to comply with the immediate and projected water demand in the country. All the known aquifers have been explored.
Water harvesting is a national priority as water supplies are being depleted by intensive pumping.
The main concern is to optimise the utilisation of the ground water resources and to protect them against depletion and pollution. This study reports on the use of remote sensing data fusion techniques for water harvesting programs, and for hydrogeological mapping. The delineation of basalt, limestone, and sandstone units based on their characteristic SAR textural and topographic features are significant. The high permeability of the basalt makes it possible to extract large quantities of potable water. These two case studies demonstrate the need to use appropriate remote sensing techniques to assist in environmental protection programs in the developing world.