Morphometric analysis of lower Enyong creek basin in South Eastern Nigeria; its implications for applied studies

Abstract

The drainage basin analysis is important in any hydrological investigation such as study of hydrologic processes, management of wetlands, flood, erosion and landslides susceptibility studies, assessment of groundwater potential and groundwater management. Also, existing theories and models such as the laws of drainage composition can be verified. In the light of the foregoing, the present paper describes the drainage characteristics of the lower Enyong Creek, which is underlain by varying geologic formations. viz; Asu River Formations e.g the Abakiliki Anticlinorium to the recent alluvium in the south It involved detailed map-based quantitative analyses of two 4th order sub-catchments in the study area. The drainage pattern is mainly dendritic type. It is observed that the drainage density value is low which indicates the basin is highly permeable subsoil and thick vegetative cover. The elongation ratio value reveals that the basin is strongly elongated and stream abstraction process constrained by heterogeneous geologic materials. This study would help the local people to utilize the resources for sustainable development of the basin area.

Morphometric analysis and its implication on flood and erosion management in Lower Kwa Iboe River, South Eastern Nigeria

“…Several studies [2] Also remarked that it is basically time consuming and inaccurate as compare to the GIS approach. Today, Remote sensing and Geographical Information System (GIS) techniques are increasingly being used for morphometric analysis of drainage basins throughout the world [51], ASTER DEM and SRTM DEM remains the two major sources of digital elevation model for watershed studies. These sources provide a useful overview of the application of remotely sensed data to investigate river form.…”

“…However, recent and historic planform change assessment provides an important context for river management. Evident from studies on river basins especially in humid tropical are among the most extreme fluvial environments in the world due to a combination of unplanned urbanization, high variability in annual rainfall and infrequent occurrences of intense tropical storms which generate an energetic and powerful flow regime [51]. Regrettably, studies on channel morphology that is sculpted by fluvial processes is relatively understudied in Kwa Iboe River.…”

Análisis de la red hídrica de la subcuenca Yanayacu, Ancash-Perú, 2022

“…Según Udosen et al (2021), una alta densidad de drenaje indica un material subterráneo impermeable, una vegetación escasa y un relieve montañoso. Además, Dal-Ré (2003) indica que la densidad de drenaje puede variar de 0,5 para cuencas con drenaje pobre hasta 3,0 km/km 2 para cuencas con excelente drenaje.…”