DBPapers
DOI: 10.5593/SGEM2014/B22/S9.007

ANALYSIS OF SPATIAL DISTRIBUTION OF GEODETIC CONTROL POINTS AND LAND COVER

K. Pokonieczny, E. Bielecka, P. Kaminski
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-11-7 / ISSN 1314-2704, June 19-25, 2014, Book 2, Vol. 2, 49-56 pp

ABSTRACT
The article presents results of the analysis of spatial distribution of third order of geodetic control points with reference to land cover. The results are referred to regular 200 m grid. Grid cells attributed by number of geodetic control points, dominated land cover type, and high above sea level were classified by k-means algorithm in 4 clusters. The choice of optimal clusters number has been preceded by the V-fold cross-validation test. The outcomes are presented as choropleth map. Particular clusters of grids type have been assigned to specific colour increasing in value in accordance with density of control points and degree of compliance with the requirements of Polish regulations. Conducted study indicates that number of geodetic control points which are located on particular area depend on type of land cover and topography (in 50%). Taking into consideration the results authors recommend that diversification of land cover should be accommodated during network layout.

Keywords: geodetic control, land cover, spatial analysis, spatial statistics, k-means clustering