dear list members, i just read a paper of Kuzyakova, Romanenkov and Kuzyakov: Application of Geostatistics in Processing the Results of Soil and Agrochemical...
881
Adrian MartÃnez V...
amvargas@...
Feb 5, 2003 4:02 pm
Question about Block Lognormal Kriging. For the Point Lognormal Kriging the unbiased estimator of z* is z*(u)=exp[y*(u) + SigmaSK^2(u)/2] where: SigmaSK^2>>>...
882
Isobel Clark
drisobelclark@...
Feb 6, 2003 8:09 am
Adrian I don't do simple kriging, but both forms of the complete backtransform are available in the papers presented at Geocongress 1998 and Pribram 1999....
883
José Quintín Cu...
cuador@...
Feb 6, 2003 8:09 am
Adrián, You most read the following papers: Rivoirard, J. 1990, A Review of Lognormal Estimation for In Situ Reserves, Math. Geol. Vol. 22, No. 2, pp 213-221....
884
Dobler, Lorenz
lorenz.dobler@...
Feb 6, 2003 8:09 am
hello list, you can see the paper here (hope the link works): http://www.uni-hohenheim.de/~kuzyakov/I-EaSS1b.pdf look at page 3 (1221) here they describe the...
885
Jozsef.Fabian@...
jozseffabian
Feb 7, 2003 10:49 am
Dear list members, I am a GIS programmer at Hungarian Central Statistical Office, and trying to make a work about statistical connections between time required...
886
Roger Bivand
Roger.Bivand@...
Feb 7, 2003 10:49 am
... This is an interesting analysis, with quite a lot of features. 1) What are the localities? Can their behaviour (as local councils etc.) affect the tax per...
887
Ercan Yesilirmak
ercanyesilirmak@...
Feb 7, 2003 10:49 am
Dear list members Do you know how to obtain the papers presented in GeoENV2002? Ercan Yesilirmak __________________________________________________ Do you...
888
Antje Müller
anmuller@...
Feb 7, 2003 4:25 pm
Dear members of the mailing - list, I deal with the interpolation method kriging. My question is how to get reliable confidence intervals if the data doesn't...
889
correa sandra
correasan
Feb 10, 2003 7:59 am
HI Antje: I am working with OK trying to get confidence intervals, Deutsch and Journel (1997) discuss on page 125 the calculation of "Error Simulation", as I...
890
Nicole Gerlach
gerlacn@...
Feb 11, 2003 1:37 pm
Question about normal score transformation with regard to kriging. I would like interpolate soil-parameters, which have been transformed by the normal score...
891
Francisco Jesús M...
fjmoral@...
Feb 11, 2003 1:37 pm
Dear list members, Now, I am studying the distribution of a plague (Helicoverpa armigera Hb.) in tomato parcels, using geostatistics techniques. I have got...
892
Gregoire Dubois
aigeostats
Feb 11, 2003 1:38 pm
Dear all, I'm looking for papers investigating the sensitivity of automatic variogram fitting functions to outliers. I'm aware of Genton's work on robust...
893
Adrian MartÃnez V...
amvargas@...
Feb 11, 2003 1:38 pm
I'm working with GSLIB90, and I need to perform Universal krigin with a lineal drift in vertical direction. The question is: a) It's necessary to...
894
Pierre Goovaerts
goovaert@...
Feb 11, 2003 4:38 pm
Dear Nicole, We discussed this problem in the following paper: Saito, H. and P. Goovaerts. 2000. Geostatistical interpolation of positively skewed and censored...
896
Serele, Charles
Charles.Serele@...
Feb 12, 2003 1:41 pm
Hello All, I'm looking some C codes to compute and fit (with spherical and exponential models) experimental variograms. I know that many software can do that,...
897
Gregoire Dubois
aigeostats
Feb 13, 2003 10:49 am
CALL FOR PAPERS ACM GIS November 7-8, 2003, New Orleans, Louisiana USA http://www.esri.com/events/acm/index.htm Introduction ================= The 11th...
898
Gregoire Dubois
aigeostats
Feb 13, 2003 11:44 am
Dear all, here is a summary of the two replies I got to my question on robust variograms and automatic mapping: 1) The following reading was suggested by...
899
Chaosheng Zhang
Chaosheng.Zhang@...
Feb 14, 2003 10:26 am
Dear all, I have two different questions: 1. Following the discussions about back transformation for log- and normal score transformations, how about back...
900
Soeren Nymand Lophaven
snl@...
Feb 14, 2003 10:26 am
Dear list, Some time ago I asked the following question: I am currently working with spatial interpolation of geophysical data. Each observation is associated...
901
Soeren Nymand Lophaven
snl@...
Feb 14, 2003 10:26 am
Dear list I have a question regarding estimation of the cross semivariogram, given by: gamma(h)=1/2N(h)*sum((z_i-z_j)(y_i-y_j)) where y and z are the two...
902
Isobel Clark
drisobelclark@...
Feb 14, 2003 11:53 am
Soeren What you have here is sometimes known as a co-located cross semi-variogram and only pairs of samples with both variables can be included in its...
903
Wilmer Rivers
Wilmer@...
Feb 17, 2003 8:10 am
... In addition the the quite helpful responses you received, you might also want to take a look at the following paper: Craig A. Schultz et al. (1998),...
904
Digby Millikan
digbym@...
Feb 17, 2003 8:10 am
Could someone summarize their understanding of estimation variance (as opposed to kriging variance). Thanks in advance. Regards Digby -- * To post a message to...
905
Aldo Solari [APS]
aldo.solari@...
Feb 17, 2003 8:10 am
Dear all, I wonder whether anyone is aware of any software package (other than TableCurve3D) or FORTRAN 90 libraries which will do surface fittings...
906
Digby Millikan
digbym@...
Feb 17, 2003 8:10 am
I meant explain. Regards Digby -- * To post a message to the list, send it to ai-geostats@... * As a general service to the users, please remember to post...
907
Valquiria Ferraz Quir...
vfquirin@...
Feb 17, 2003 8:10 am
Dear all, I wrote to you a few weeks ago about some questions on estimating the optimum size of sampling plots. I found in one article that there is a program...
908
Martin Roseveare
martin_roseveare@...
Feb 17, 2003 8:10 am
Surfer 8 by Golden Software, Colorado US, offers a wide range of exact and inexact interpolators for surface fitting and includes reporting of goodness of fit...
909
Edzer J. Pebesma
e.pebesma@...
Feb 17, 2003 1:12 pm
Valquiria, OSSFIM calculates block kriging prediction errors as a function of data grid spacing, block size, and variogram model Any block kriging program can...
910
Francisco Jesús Mo...
fjmoral@...
Feb 17, 2003 1:12 pm
Dear list members, here is a summary of the replies I got to my question. Any further idea will be very appreciated too. ... From: Francisco Jesús Moral...
