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ETD_Amoah 08-28-2022.pdf (2.36 MB)

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Mapping Wetlands Using GIS and Remote Sensing Techniques, A Case Study of Wetlands in Greater Accra, Ghana

Amoah, Michael Kofi Mborah
http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1660601620356502

Abstract Details

2022, Master of Science (MS), Bowling Green State University, Geology.
The goal of this study is to explore land use and land cover (LULC) trends in Greater Accra Metropolitan Area (GAMA), a highly urbanized coastal region in Ghana by analyzing historical change rates and forecasting future scenarios. As industrialization and basic anthropological necessities increase in the region, natural land resources, specifically wetlands, are undergoing adverse changes. With the help of Modules for Land Use Change Evaluation (MOLUSCE) which is a plugin in QGIS, the study identifies land-use changes in GAMA for 2002, 2013, and 2020 as well as forecasts and establishes potential land-use changes in 2030 and 2040. The presented approach incorporates well-known algorithms such as artificial neural networks (ANN) for computing transition potential maps coupled with cellular automata (CA) simulation. To analyze their impact on LULC between 2002 and 2013, five criteria were used in the CA-ANN framework, including elevation, slope, distance from roads, distance from towns, and distance from rivers. The validation of simulated LULC maps for 2020 indicates a good level of accuracy, with a kappa value of 0.70 and a correctness percentage of 78.50%. The future scenarios between 2020 and 2040 indicate that urban development and sprawl are expected to increase annually at a dynamic degree rate of 0.86% at the expense of natural land covers such as wetlands and vegetation. The major road network in GAMA spearheads the growth of developed areas, while slope and elevation act as constraints. A high ratio of impervious to pervious surfaces confirms the rapid urbanization of the area. Urbanization is likely to have a more detrimental effect on natural habitats in the near future less so in the distant future. This study emphasizes the importance of establishing appropriate urban planning policies and management methods for sustainable environmental conservation.
Peter Gorsevski, PhD. (Committee Chair)
Kefa Otiso, PhD. (Committee Member)
Yu Zhou, PhD. (Committee Member)
68 p.
Environmental Science; Geographic Information Science
Wetlands; LULC; Land, Use, Land, Cover; CA; Cellular, Automata; ANN; Artificial, Neural, Network; MOLUSCE;

Recommended Citations

Citations

  • Amoah, M. K. M. (2022). Mapping Wetlands Using GIS and Remote Sensing Techniques, A Case Study of Wetlands in Greater Accra, Ghana [Master's thesis, Bowling Green State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1660601620356502

    APA Style (7th edition)

  • Amoah, Michael. Mapping Wetlands Using GIS and Remote Sensing Techniques, A Case Study of Wetlands in Greater Accra, Ghana. 2022. Bowling Green State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1660601620356502.

    MLA Style (8th edition)

  • Amoah, Michael. "Mapping Wetlands Using GIS and Remote Sensing Techniques, A Case Study of Wetlands in Greater Accra, Ghana." Master's thesis, Bowling Green State University, 2022. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1660601620356502

    Chicago Manual of Style (17th edition)

bgsu1660601620356502
102
© 2022, all rights reserved.
This open access ETD is published by Bowling Green State University and OhioLINK.