Title: Finding the Right Pixel Size
Authors: HENGL TOMISLAV
Citation: SOIL SCIENCE SOCIETY OF AMERICA JOURNAL vol. 32 no. 9 p. 1283-1298
Publisher: SOIL SCI SOC AMER
Publication Year: 2006
JRC N°: JRC31417
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC31417
Type: Articles in Journals
Abstract: Paper discusses empirical and analytical rules to select a suitable grid resolution for output maps and based on the inherent properties of the input data. The choice of grid resolution was related with the cartographic and statistical concepts: scale, computer processing power, positional accuracy, size of delineations, inspection density , spatial dependence structure and complexity of terrein. These were further related with the concepts from the general statistic and information theory such as Nyquist frequency concept from signal processing and equations to estimate the probability density function. Selection of grid resolution was demonstrated using four datasets: (1) GPS positioning data, (2) map of agricultural plots, (3) point dataset from soil mapping, (4) contour map used for prodution of digital elevation model.
JRC Institute:Institute for Environment and Sustainability

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