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Nguyen, T. A. (2013). Proposed longitudinal axis using for the data provincial cadastral under the accuracy of maps from the land value. Journal of Geodesy and Cartography, (17), 5–9. https://doi.org/10.54491/jgac.2013.17.78
Abstract
This scientific article analyses the development of spherical harmonic coefficient models from different data sources and calculates the height anomaly in Vietnam by changing the maximum degree of spherical harmonic coefficients. The result shows that by not using detail gravity data, spherical harmonic coefficient models are only effective for spherical harmonic expansion to degree 180.
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