Use of Very High Spatial Resolution Satellite Imagery for Thematic Applications: a Review

* Corresponding author This study was partly carried out in the framework of the project “Using satellite images for automatic mapping of forest clear cuts and new plantations” (Project number 130), funded by Programa AGRO, Medida 8 – Desenvolvimento Tecnológico e Demonstração, Acção 8.1 – Desenvolvimento Experimental e Demonstração (DE&D) Abstract – The launch, in recent years, of several very high spatial resolution satellite (VHSRS) systems for civilian use has initiated a new era in Remote Sensing and Earth Observation, creating both new opportunities and challenges. The aim of this paper is to provide an overview of the use of VHSRS imagery, with a focus on thematic applications. Thematic applications constitute the majority of the work done with VHSRS images but there are also a substantial number of photogrammetric studies and others addressing imagery properties (such as positional accuracy) or algorithms for information extraction. Within thematic applications land resources predominate, covering essentially the fields of natural resources management, spatial planning, urban areas, forestry and agriculture. The potential applications of VHSRS images have not yet been fully explored and more studies are needed to investigate further some of the enhanced characteristics but also limitations of these images.