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Ordinary kriging and the construction of a digital elevation model

In: Geografický časopis, vol. 49, no. 2
Peter P. Siska
Rok, strany: 1997, 91 - 113
Jazyk: eng
Kľúčové slová:
geostatistics, variogram, interpolation, geographic information system
Typ dokumentu: článok/journal
O článku:
Implementation of geostatistical methods into natural resource management studies marked the end of the I980s and the beginning of the 1990s. Areas of application included soil .science, entomology, ecology, forestry, and geography, among others. In particular, ordinary kriging has seen widespread use in recent years. Its use can be expected to increase as understanding of the procedure and availability of geostatistical software increases. One objective for this páper is to introduce kriging to a new audience. During this period there has also been a dramatic increase in Geographic Information Systems (GIS) both in terms of capabilities and the breadth of applications. Many GIS applications make use of digital elevation models (DEMs), most of which have been generated from elevation point data using deterministic models. We present results of research into the use geostatistical methods to develop and test a stochastic (probabalistic) DEM. Both GIS and spatial statistical software were used during the process of generating and analyzing the data and displaying the resulting DEM. The use of stochastic methods was motivated by the observation that many earth-related attributes are generated by stochastic processes. Kriging was the spatial statistical tool selected for model development. Results corraborated the hypothesis that kriging can produce highly accurate DEMs. The density and distribution of sample locations determines the absolute accuracy.
Ako citovať:
ISO 690:
Siska, P. 1997. Ordinary kriging and the construction of a digital elevation model. In Geografický časopis, vol. 49, no.2, pp. 91-113. 0016-7193.

Siska, P. (1997). Ordinary kriging and the construction of a digital elevation model. Geografický časopis, 49(2), 91-113. 0016-7193.
O vydaní:
Vydavateľ: Geografický ústav SAV/Institute of Geography of the Slovak Academy of Sciences