Positional Accuracy Evaluation of Google Earth using RTK GNSS Network Surveying Case Study: Mahasarakham Province
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Published:
Nov 15, 2021
Keywords:
GNSS, EGM96, TGM2017, RMSE
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Abstract
This study aims to provide an understanding of the horizontal positional accuracy and Google Earth height compare with Static GNSS surveying. The results showed the RMSE obtained in E, N, Z(EGM96), and Z (TGM2017) were 1.316, 1.331, 3.558, and 4.453 m. respectively with a horizontal error range of -2.834 m to 1.930 m and a vertical error range of -0.673 m to 8.874 m in all 48 measured points. The results show Google Earth cannot provide high accuracy coordinate and the height of google earth is not so sensitive to immediate changes in ground topography.
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Srihanu, N., & Kaewplang, S. (2021). Positional Accuracy Evaluation of Google Earth using RTK GNSS Network Surveying Case Study: Mahasarakham Province. Journal of Applied Informatics and Technology, 4(1), 32-47. Retrieved from https://ph01.tci-thaijo.org/index.php/jait/article/view/244728
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References
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Goudarzi, M. A., & Landry, R. J. (2017). Assessing horizontal positional accuracy of Google Earth imagery in the city of Montreal, Canada. Geodesy and Cartography, 43(2), 56-65.
Kattan, R., Abdulrahman, F., & Hassan, H. (2016). Evaluating the accuracy of Google Earth DEM using GPS Coordinates, Case study: Duhok Governorate. Journal of University of Duhok (JDU), 19, 1-16.
Mulu, Y. A., & Derib, S. D. (2019). Positional Accuracy Evaluation of Google Earth in Addis Ababa, Ethiopia. Artificial Satellites, 54(2), 43-56.
Rusli, N., Pa’suya, M. F., & Talib, N. (2016, April). A comparative accuracy of Google Earth height with MyGeoid, EGM96 and MSL. In IOP Conference Series: earth and environmental science. IOP Conference Series (pp. 1-6).