Distribution of kriging error and stationarity of the variogram in a coal property |
| |
| Authors: | Bruce A Bancroft and Gerald R Hobbs |
| |
| Institution: | (1) Consolidation Coal Company, Consol Plaza, 15241 Pittsburgh, Pennsylvania;(2) Department of Statistics and Computer Science, West Virginia University, 36505 Morgantown, West Virginia |
| |
| Abstract: | If a particular distribution for kriging error may be assumed, confidence intervals can be estimated and contract risk can be assessed. Contract risk is defined as the probability that a block grade will exceed some specified limit. In coal mining, this specified limit will be set in a coal sales agreement. A key assumption necessary to implement the geostatistical model is that of local stationarity in the variogram. In a typical project, data limitations prevent a detailed examination of the stationarity assumption. In this paper, the distribution of kriging error and scale of variogram stationarity are examined for a coal property in northern West Virginia. |
| |
| Keywords: | distribution of kriging error variogram stationarity coal geostatistics contract risk |
| 本文献已被 SpringerLink 等数据库收录！ |
|
