Premium
A robust‐resistant spatial analysis of soil water infiltration
Author(s) -
Cressie N. A. C.,
Horton R.
Publication year - 1987
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr023i005p00911
Subject(s) - variogram , infiltration (hvac) , spatial variability , environmental science , soil science , estimator , tillage , geostatistics , spatial dependence , spatial analysis , hydrology (agriculture) , geology , kriging , geotechnical engineering , statistics , mathematics , remote sensing , geography , meteorology , ecology , biology
Data taken at adjacent spatial locations often exhibit correlation which must be taken into account in their analysis. Geostatistical methods, originally developed for the mining industry, have proven to be adaptable to hydrological problems. This paper concentrates on estimating the spatial correlations between soil water infiltration observations, with special emphasis on resistant methods to remove nonstationarity. After this removal, robust semivariogram estimators are used to examine the spatial dependencies for various tillage treatments. There is some indication that infiltration characteristics inherit different types of spatial dependency, depending on the tillage treatment applied.