Topographic survey based ecological impact assessment provides a mechanism for data integration, development, management and output presentation in a spatial environment. This research involved incorporating spatial data of all salient points at the Permanent Site of Federal Polytechnic, Oko, Anambra state to find a solution to the erosion menace. Differential Global Positioning System (DGPS) receiver was used to acquire spatial data of buildings, roads, spot height, drainages, catchment pits, etc. The topographic data were processed using ArcGIS software to analyze and produce the topographic maps. Presentations from the topographic survey revealed that the catchment topography runs between 160m – 198m height above the datum, the total area of the catchment area being 216320.653m2, perimeter is 2604.449m and the length of the mainstream is 1125.428m. Topographic maps of the area were used to assess the impact of the ecology on the area of study by analyzing the built up area, surface roughness, impervious and pervious surfaces. Hydraulic design of the drainage using best hydraulic section principle for most economic section to carry the flow was determined to solve the erosion problems in the catchment area. The flow rate obtained was 2.55m3/s and dimensions of the channel to be 1.1m depth and 2.2m width. The design of the selected structural members was done to mitigate against the erosion menace in the study area.
| Published in | American Journal of Applied Mathematics (Volume 12, Issue 5) |
| DOI | 10.11648/j.ajam.20241205.18 |
| Page(s) | 183-199 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Ecological Impact Assessment, Topographic Survey, Geo-Database, Spatial Analysis, Fluid Dynamics, Hydraulic Design and Rectangular Drainage Design
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APA Style
Ogundeji, A. F., Nnamdi, E. C. (2024). Ecological Impact Assessment of Permanent Site of Federal Polytechnic Oko Using Topographic Survey Method. American Journal of Applied Mathematics, 12(5), 183-199. https://doi.org/10.11648/j.ajam.20241205.18
ACS Style
Ogundeji, A. F.; Nnamdi, E. C. Ecological Impact Assessment of Permanent Site of Federal Polytechnic Oko Using Topographic Survey Method. Am. J. Appl. Math. 2024, 12(5), 183-199. doi: 10.11648/j.ajam.20241205.18
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Download@article{10.11648/j.ajam.20241205.18,
author = {Ayodele Femi Ogundeji and Ezugwu Charles Nnamdi},
title = {Ecological Impact Assessment of Permanent Site of Federal Polytechnic Oko Using Topographic Survey Method
},
journal = {American Journal of Applied Mathematics},
volume = {12},
number = {5},
pages = {183-199},
doi = {10.11648/j.ajam.20241205.18},
url = {https://doi.org/10.11648/j.ajam.20241205.18},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajam.20241205.18},
abstract = {Topographic survey based ecological impact assessment provides a mechanism for data integration, development, management and output presentation in a spatial environment. This research involved incorporating spatial data of all salient points at the Permanent Site of Federal Polytechnic, Oko, Anambra state to find a solution to the erosion menace. Differential Global Positioning System (DGPS) receiver was used to acquire spatial data of buildings, roads, spot height, drainages, catchment pits, etc. The topographic data were processed using ArcGIS software to analyze and produce the topographic maps. Presentations from the topographic survey revealed that the catchment topography runs between 160m – 198m height above the datum, the total area of the catchment area being 216320.653m2, perimeter is 2604.449m and the length of the mainstream is 1125.428m. Topographic maps of the area were used to assess the impact of the ecology on the area of study by analyzing the built up area, surface roughness, impervious and pervious surfaces. Hydraulic design of the drainage using best hydraulic section principle for most economic section to carry the flow was determined to solve the erosion problems in the catchment area. The flow rate obtained was 2.55m3/s and dimensions of the channel to be 1.1m depth and 2.2m width. The design of the selected structural members was done to mitigate against the erosion menace in the study area.
},
year = {2024}
}
TY - JOUR T1 - Ecological Impact Assessment of Permanent Site of Federal Polytechnic Oko Using Topographic Survey Method AU - Ayodele Femi Ogundeji AU - Ezugwu Charles Nnamdi Y1 - 2024/10/18 PY - 2024 N1 - https://doi.org/10.11648/j.ajam.20241205.18 DO - 10.11648/j.ajam.20241205.18 T2 - American Journal of Applied Mathematics JF - American Journal of Applied Mathematics JO - American Journal of Applied Mathematics SP - 183 EP - 199 PB - Science Publishing Group SN - 2330-006X UR - https://doi.org/10.11648/j.ajam.20241205.18 AB - Topographic survey based ecological impact assessment provides a mechanism for data integration, development, management and output presentation in a spatial environment. This research involved incorporating spatial data of all salient points at the Permanent Site of Federal Polytechnic, Oko, Anambra state to find a solution to the erosion menace. Differential Global Positioning System (DGPS) receiver was used to acquire spatial data of buildings, roads, spot height, drainages, catchment pits, etc. The topographic data were processed using ArcGIS software to analyze and produce the topographic maps. Presentations from the topographic survey revealed that the catchment topography runs between 160m – 198m height above the datum, the total area of the catchment area being 216320.653m2, perimeter is 2604.449m and the length of the mainstream is 1125.428m. Topographic maps of the area were used to assess the impact of the ecology on the area of study by analyzing the built up area, surface roughness, impervious and pervious surfaces. Hydraulic design of the drainage using best hydraulic section principle for most economic section to carry the flow was determined to solve the erosion problems in the catchment area. The flow rate obtained was 2.55m3/s and dimensions of the channel to be 1.1m depth and 2.2m width. The design of the selected structural members was done to mitigate against the erosion menace in the study area. VL - 12 IS - 5 ER -
Surveying and Geoinformatics Department, Federal Polytechnic Oko, Oko Town, Nigeria
Civil Engineering Department, Alex Ekwueme Federal University Ndufu Alike, Abakaliki, Nigeria
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