Browsing by Author "Aryee, J."
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Item The continuous search for new port governance models: experiences from a developing country(Journal of Shipping and Trade, 2023) Andersen, T.; Aryee, J.; Acheampong, G.; Hansen, A.S.This paper bridges port governance and stakeholder theory to contribute to new understandings of changed stakeholder relations due to the building of new container terminals. The case of the newly inaugurated very large high-tech container terminal commissioned to and developed and operated by Meridian Port Services (MPS), in the Port of Tema, Ghana, provides the empirical foundation for investigating the new stake holder engagement. Through focus groups, descriptive statistics, and a series of quali tative and open-ended interviews carried out in structured stakeholder events, the paper aims to deliver new knowledge relevant to the many hybrid port governance systems seen today. Moreover, it wants to inform authorities and companies about the implications of diferent strategic choices and how changes progress. The study shows that despite shared goals of efciency, all parties involved have had major difculties in fnding a new port governance model, which they all consider fair and which can contribute to a continuously economically sustainable port management practice.Item Stakeholder legitimacy and efficiency: the case of innovation at the Port of Tema, Ghana(International Journal of Business and Globalisation, 2022) Acheampong, G.; Aryee, J.; Andersen, T.; Hansen, A.S.Our study set out to explore the relationship between legitimacy in the form of social license that stakeholders grant the National Single Window Project (NSWP) and port efficiency at the Port of Tema, as well as bounding conditions on this relationship. We collected stakeholder legitimacy data in line with with the social license to operate (SLO) framework on the National Single Window Project implementation at the port and stakeholder-perceived port efficiency in Tema. We found that there is an -shaped relationship between legitimacy and port efficiency. We also found that port cooperation and relational intensity dampens the relationship between legitimacy and portability. efficiency. Our study offers an alternative perspective on port management that view ports as isolated units, which provides a partial understanding of their functioning. We opine that viewing ports as networks of stakeholders provides an improved understanding.Item Variabilities in Rainfall Onset, Cessation and Length of Rainy Season for the Various Agro-Ecological Zones of Ghana(2015) Amekudzi, L.K.; Yamba, E.I.; Preko, K.; Asare, E.O.; Aryee, J.; Baidu, M.; Codjoe, S.N.A.This paper examines the onset and cessation dates of the rainy season over Ghana using rain gauge data from the Ghana Meteorological Agency (GMet) over the period of 1970–2012. The onset and cessation dates were determined from cumulative curves using the number of rainy days and rainfall amount. In addition, the inter-annual variability of the onset and cessation dates for each climatic zone was assessed using wavelet analysis. A clear distinction between the rainfall characteristics and the length of the rainy season in the various climatic zones is discussed. The forest and coastal zones in the south had their rainfall onset from the second and third dekads of March. The onset dates of the transition zone were from the second dekad of March to the third dekad of April. Late onset, which starts from the second dekad of April to the first dekad of May, was associated with the savannah zone. The rainfall cessation dates in the forest zone were in the third dekad of October to the first dekad of November, and the length of the rainy season was within 225–240 days. The cessation dates of the coastal zone were within the second and third dekad of October, and the length of rainy season was within 210–220 days. Furthermore, the transition zone had cessation dates in the second to third dekad of October, and the length Climate 2015, 3 417 of the rainy season was within 170–225 days. Lastly, the savannah zone had cessation dates within the third dekad of September to the first dekad of October, and the length of rainy season was within 140–180 days. The bias in the rainfall onset, cessation and length of the rainy season was less than 10 days across the entire country, and the root mean square error (RMSE) was in the range of 5–25 days. These findings demonstrate that the onset derived from the cumulative rainfall amount and the rainy days are in consistent agreement. The wavelet power spectrum and its significant peaks showed evidence of variability in the rainfall onset and cessation dates across the country. The coastal and forest zones showed 2–8-and 2–4-year band variability in the onsets and cessations, whereas the onset and cessation variability of the transition and savannah zones were within 2–4 and 4–8 years. This result has adverse effects on rain-fed agricultural practices, disease control, water resource management, socioeconomic activities and food security in Ghana.