Browsing by Author "Coleman, T. L."

Now showing 1 - 6 of 6
  • Thumbnail Image
    Biodiversity management using remotely sensed data and GIS technologies: The case of Digya National Park, Ghana
    Twumasi, Yaw A.; Coleman, T. L.; Manu, Andrew (The International Society of Photogrammetry and Remote Sensing (ISPRS), 2005)
    Effective management of biodiversity resources in nature reserves requires accurate and up-to-date information to determine the type of land cover and land use over time. This study employed Landsat TM and ETM+ data to develop a database for Digya National Park in Ghana which will assist in the management and formulation of policies and offer decision-making tasks related to park management. The study revealed that the most significant cause of deforestation in Digya National Park is the expanding Lake Volta, which accounted for two-thirds of all deforestation factors. Other factors included human settlement and the extension of illegal farming activities. The paper concludes by outlining policy recommendations such as the need for the Wildlife Department to coordinate its protection efforts with Departments of the Government of Ghana which have authority over the Volta Dam and also to involve the community in the decision making process both at the local and national level.
  • The impact of urban growth and long-term climatic variations on the sustainable development of the City of Niamey, Niger
    Twumasi, Yaw A.; Manu, Andrew; Coleman, T. L.; Maiga, I. A. (Piscataway, NJ: Institute of Electrical and Electronics Engineers Inc., 2005)
    This paper examines the combined effect of population growth and climate change in the area surrounding Niamey, Niger. Using GIS technology, the study is able to look at a number factors and compare them through a time series dataset. The study finds that population growth is occurring at a period of agricultural decline due to the sensitivity of the surrounding Sahelian plain. It is realized that more sensitive systems for agricultural production are necessary to prevent soil erosion, drinking water contamination, and a sustained food supply so that the city does not exceed carrying capacity.
  • Thumbnail Image
    Remote sensing and GIS application in coastal zone management: A case study of Ghana
    Twumasi, Yaw A.; Manu, Andrew; Coleman, T. L. (The Geo-Information Society of South Africa, 2005)
    This presentation provides background on the historical significance of coastal ecosystems and current natural and human-caused threats. A study was undertaken to use Landsat TM and ETM+ images to detect land degradation along the east coast of Ghana and create an information database to assist in the effective planning and management of resources along the coast of Ghana. The presentation concludes with recommendations for the application of remote sensing and GIS data to coastal policy formation.
  • Use of geospatial information management as a decision support tool in land use planning: A case of Ghana
    Twumasi, Yaw A.; Manu, Andrew; Coleman, T. L.; Osei, A. (2006)