Re: AI-GEOSTATS: Anisotropy with varying Range and Sill

2001-09-10 Thread Syed Shibli
On Monday, September 10, 2001, at 12:19 PM, Isobel Clark wrote: > Any basic Geostatistics book will show you models with > varying ranges and sills with direction. > > Except mine. We believe that sill varying with > direction is a symptom of deeper problems such as > non-stationarity, trend, d

Re: AI-GEOSTATS: Anisotropy with varying Range and Sill

2001-09-10 Thread Isobel Clark
Any basic Geostatistics book will show you models with varying ranges and sills with direction. Except mine. We believe that sill varying with direction is a symptom of deeper problems such as non-stationarity, trend, discontinuities, etc etc. Isobel Clark http://uk.geocities.com/drisobelclark

AI-GEOSTATS: Anisotropy with varying Range and Sill

2001-09-10 Thread Yadollah Waghei
Hi AI-Geostats member I have an Anisotropic Spatial Data Set on which,Sill and Range (and also nugget effect) are both varying with direction, I need a method or refrence article for modelling the variogram structure of such data in 2-Dim. space. Please introduce a method and/or a reference arti