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<p>This paper conducts an extensive morphometric analysis of the Afram River Basin to assess its hydrological behaviour and its implications for the sustainable management of water resources. These were the goals: to calculate the critical linear, areal, and relief parameters; examine how these parameters affect runoff, infiltration, erosion, and drainage capacity; and interpret their applicability to climate-resilient planning. The ArcGIS 10.8.2 and ERDAS IMAGINE were used to process Landsat 8 OLI/TIRS and SRTM DEM (30&#xa0;m) data to delineate the basin, classify stream orders, derive slope and calculate quantitative morphometric indicators. Findings indicate a low drainage density of 0.28&#xa0;km/km<sup>2</sup>, a mean bifurcation ratio of 1.86, and a dendritic pattern characterised by dominance of 256 first-order streams and an overall stream length of 2213.43&#xa0;km, suggesting an elongated watershed with slow runoff concentration and low flash-flood potential, but high water stress in dry seasons. The originality of this piece of work lies in the direct connection of these morphometric indicators to Sustainable Development Goal (SDG) 6 through the identification of groundwater recharge areas, slopes prone to erosion, and areas of hydrological sensitivity, all of which are necessary for Integrated Water Resources Management (IWRM). The results offer evidence-based recommendations for enhancing basin-level water security and climate adaptation in the Afram Basin.</p>

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Analysis of morphometric parameters in the Afram River Basin: a comprehensive study for sustainable water resource management

  • 期刊论文

  • 发表日期：

    2026年2月23日

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  • I. Aninakwah,
  • M. Anim,
  • B. Aboagye,
  • E. Aninakwah,
  • N. Edoh,
  • P. Owusu-Ansah,
  • O. P. Yeboah,
  • P. A.-G. Kyeremeh

摘要

This paper conducts an extensive morphometric analysis of the Afram River Basin to assess its hydrological behaviour and its implications for the sustainable management of water resources. These were the goals: to calculate the critical linear, areal, and relief parameters; examine how these parameters affect runoff, infiltration, erosion, and drainage capacity; and interpret their applicability to climate-resilient planning. The ArcGIS 10.8.2 and ERDAS IMAGINE were used to process Landsat 8 OLI/TIRS and SRTM DEM (30 m) data to delineate the basin, classify stream orders, derive slope and calculate quantitative morphometric indicators. Findings indicate a low drainage density of 0.28 km/km2, a mean bifurcation ratio of 1.86, and a dendritic pattern characterised by dominance of 256 first-order streams and an overall stream length of 2213.43 km, suggesting an elongated watershed with slow runoff concentration and low flash-flood potential, but high water stress in dry seasons. The originality of this piece of work lies in the direct connection of these morphometric indicators to Sustainable Development Goal (SDG) 6 through the identification of groundwater recharge areas, slopes prone to erosion, and areas of hydrological sensitivity, all of which are necessary for Integrated Water Resources Management (IWRM). The results offer evidence-based recommendations for enhancing basin-level water security and climate adaptation in the Afram Basin.