This study assesses the positional shift of existing control points and management practices found in and around Assosa town. The static GPS measurement technique was used as an independent source and a point wise method were used to assess the positional shift and accuracy level evaluation. Due to unavailability of local CORS station, two first order GCPs were used as a reference during static GPS measurement. After measurement was conducted depending on the baseline length between control point marks, the STC desktop software and online CSRS-PPP post processing technique was used. Thus, the positional accuracy of selected GCPs of STC Post processing technique has a mean error of 0.324 m and whereas the GCPs of CSRS-PPP has a mean error of 0.571 m. Horizontal distance error obtained with the STC differential technique is ranging from 0 to 0.83 m which is inconsistent relative to the range 0.437 m to 0.815 m obtained from online CSRS-PPP solution. The positional accuracy of GCPs was also assessed using horizontal distance error of both processed techniques. The positional accuracy of GCPs at 95% confidence level is between -0.117 m and 0.765 m with STC and between 0.395 m and 0.747 m in online CSRS-PPP solution. Based on the result, the accuracy level of existing GCPs found in Assosa town, does not meet the FGDC accuracy. This was mainly associated with perception of communities on ground control point management activities. The study revealed almost low communities practice and control point management responsiveness. Finally, study suggested that there should be participatory guidance to establish and manage the ground control points.
| Published in | American Journal of Science, Engineering and Technology (Volume 9, Issue 3) |
| DOI | 10.11648/j.ajset.20240903.12 |
| Page(s) | 163-174 |
| 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 |
Control Points, Static GNSS Measurement, Positional Shift, Positional Accuracy, Management Practice
| [1] | T. Z. Tadesse Hailu, Engdawork Assefa, “Land use planning implementation and its effect on the ecosystem in Addis,” vol. 13, no. October, 2023. |
| [2] | FIGURE, CADASTRE 2014 and Beyond Editor, no. 61. 2014. |
| [3] | M. Abd-elazeem, A. Farah, and F. A. Farrag, “Geodetic Science Geodetic Science,” vol. 1, no. 3, 2011, |
| [4] | K. N. Otah, M. A. Emakoji, and M. A. Okono, “ISSN: 3027-169X Ekete - International Journal of Advanced Research Vol. 1 No. 1, Aug. 2023,” vol. 1, no. 1, pp. 19–27, 2023. |
| [5] | A. Miskas and A. Molnar, “Establishing a Reference Network in Parts of Amhara Region, Ethiopia Using Geodetic GPS Equipment,” no. 3117, 2009. |
| [6] | A. Guidara, G. Fersi, F. Derbel, and M. Ben Jemaa, “ScienceDirect Impacts Impacts of of Temperature Temperature and and Humidity Humidity variations variations on on RSSI RSSI in in indoor indoor Wireless Sensor Networks Wireless Sensor Networks,” vol. 00, 2018. |
| [7] | S. Timilsina, “Precise Point Positioning (PPP): Method and its Geodetic Usage,” pp. 59–63, 2019. |
| [8] | J. C. Liang Li, Chun Jia, Lin Zhao and J. L. and J. Ding, “Real-Time Single Frequency Precise Point Positioning Using SBAS Corrections,” 2016, |
| [9] | E. Stott and R. D. Williams, “Ground Control Point Distribution for Accurate Kilometre-Scale Topographic Mapping Using an RTK-GNSS Unmanned Aerial Vehicle and SfM Photogrammetry,” pp. 1–21, 2020. |
| [10] | A. Farah, “VARIATION OF STATIC-PPP POSITIONING ACCURACY USING GPS-SINGLE FREQUENCY OBSERVATIONS (ASWAN, EGYPT),” vol. 52, no. 2, 2017, |
| [11] | Z. Qile, “BDS / GNSS instantaneous centimeter-level Precise Point Positioning (PPP): method and applications,” no. December, 2022. |
| [12] | M. Zahirudin, B. Mohammed, M. Binti, and A. Manaf, “Establishment of control points using GNSS- RTK technique,” vol. 02001, 2024. |
| [13] | P. Jansson, “A Comparison of Different Methods Using GNSS RTK to Establish Control Points in Cadastral Surveying,” 2018. |
| [14] | E. Y. Belay, W. Godah, M. Szelachowska, and R. Tenzer, “ETH – GM21 : A new gravimetric geoid model of Ethiopia developed using the least-squares collocation method Journal of African Earth Sciences ETH – GM21 : A new gravimetric geoid model of Ethiopia developed using the least-squares collocation method,” no. July, pp. 21–22, 2021, |
APA Style
Yeneneh, M. F., Addis, G. K., Benti, T. R. (2024). Assessment of Ground Control Points Positional Shift and Management Practices: Evidences from Assosa Town, Western Ethiopia. American Journal of Science, Engineering and Technology, 9(3), 163-174. https://doi.org/10.11648/j.ajset.20240903.12
ACS Style
Yeneneh, M. F.; Addis, G. K.; Benti, T. R. Assessment of Ground Control Points Positional Shift and Management Practices: Evidences from Assosa Town, Western Ethiopia. Am. J. Sci. Eng. Technol. 2024, 9(3), 163-174. doi: 10.11648/j.ajset.20240903.12
AMA Style
Yeneneh MF, Addis GK, Benti TR. Assessment of Ground Control Points Positional Shift and Management Practices: Evidences from Assosa Town, Western Ethiopia. Am J Sci Eng Technol. 2024;9(3):163-174. doi: 10.11648/j.ajset.20240903.12
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Download@article{10.11648/j.ajset.20240903.12,
author = {Mihret Fentahun Yeneneh and Gizachew Kassaw Addis and Teha Romanu Benti},
title = {Assessment of Ground Control Points Positional Shift and Management Practices: Evidences from Assosa Town, Western Ethiopia
},
journal = {American Journal of Science, Engineering and Technology},
volume = {9},
number = {3},
pages = {163-174},
doi = {10.11648/j.ajset.20240903.12},
url = {https://doi.org/10.11648/j.ajset.20240903.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajset.20240903.12},
abstract = {This study assesses the positional shift of existing control points and management practices found in and around Assosa town. The static GPS measurement technique was used as an independent source and a point wise method were used to assess the positional shift and accuracy level evaluation. Due to unavailability of local CORS station, two first order GCPs were used as a reference during static GPS measurement. After measurement was conducted depending on the baseline length between control point marks, the STC desktop software and online CSRS-PPP post processing technique was used. Thus, the positional accuracy of selected GCPs of STC Post processing technique has a mean error of 0.324 m and whereas the GCPs of CSRS-PPP has a mean error of 0.571 m. Horizontal distance error obtained with the STC differential technique is ranging from 0 to 0.83 m which is inconsistent relative to the range 0.437 m to 0.815 m obtained from online CSRS-PPP solution. The positional accuracy of GCPs was also assessed using horizontal distance error of both processed techniques. The positional accuracy of GCPs at 95% confidence level is between -0.117 m and 0.765 m with STC and between 0.395 m and 0.747 m in online CSRS-PPP solution. Based on the result, the accuracy level of existing GCPs found in Assosa town, does not meet the FGDC accuracy. This was mainly associated with perception of communities on ground control point management activities. The study revealed almost low communities practice and control point management responsiveness. Finally, study suggested that there should be participatory guidance to establish and manage the ground control points.
},
year = {2024}
}
TY - JOUR T1 - Assessment of Ground Control Points Positional Shift and Management Practices: Evidences from Assosa Town, Western Ethiopia AU - Mihret Fentahun Yeneneh AU - Gizachew Kassaw Addis AU - Teha Romanu Benti Y1 - 2024/09/06 PY - 2024 N1 - https://doi.org/10.11648/j.ajset.20240903.12 DO - 10.11648/j.ajset.20240903.12 T2 - American Journal of Science, Engineering and Technology JF - American Journal of Science, Engineering and Technology JO - American Journal of Science, Engineering and Technology SP - 163 EP - 174 PB - Science Publishing Group SN - 2578-8353 UR - https://doi.org/10.11648/j.ajset.20240903.12 AB - This study assesses the positional shift of existing control points and management practices found in and around Assosa town. The static GPS measurement technique was used as an independent source and a point wise method were used to assess the positional shift and accuracy level evaluation. Due to unavailability of local CORS station, two first order GCPs were used as a reference during static GPS measurement. After measurement was conducted depending on the baseline length between control point marks, the STC desktop software and online CSRS-PPP post processing technique was used. Thus, the positional accuracy of selected GCPs of STC Post processing technique has a mean error of 0.324 m and whereas the GCPs of CSRS-PPP has a mean error of 0.571 m. Horizontal distance error obtained with the STC differential technique is ranging from 0 to 0.83 m which is inconsistent relative to the range 0.437 m to 0.815 m obtained from online CSRS-PPP solution. The positional accuracy of GCPs was also assessed using horizontal distance error of both processed techniques. The positional accuracy of GCPs at 95% confidence level is between -0.117 m and 0.765 m with STC and between 0.395 m and 0.747 m in online CSRS-PPP solution. Based on the result, the accuracy level of existing GCPs found in Assosa town, does not meet the FGDC accuracy. This was mainly associated with perception of communities on ground control point management activities. The study revealed almost low communities practice and control point management responsiveness. Finally, study suggested that there should be participatory guidance to establish and manage the ground control points. VL - 9 IS - 3 ER -
Land Administration and Management, Assosa Agricultural Technical and Vocational Education Training College, Assosa, Ethiopia
Natural Resource Economics and Management, Assosa Agricultural Technical and Vocational Education Training College, Assosa, Ethiopia
