Hello all... I don't think I'm yet worthy of this list since I am in the very beginnings of learning the art of GIS. I'm currently taking an introductory...
2
WARR Benjamin
benjamin.warr@...
Nov 22, 2000 3:49 pm
Hi All, When performing SIS we have a choice of the max. no. of data nodes and simulated nodes to use . Is there a general rule defining the number of ...
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Isobel Clark
drisobelclark@...
Nov 22, 2000 3:49 pm
The number or density of nodes which you simulate depends solely on why you are doing the simulation and the resolution you need for your study. Also, of...
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Pierre Goovaerts
goovaert@...
Dec 1, 2000 9:01 am
Hi, One of the primary objectives of stochastic simulation is to reproduce patterns of spatial variability and in sequential simulation it is ensured by using ...
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Edzer J. Pebesma
e.pebesma@...
Dec 1, 2000 1:16 pm
... A far superior implementation of the concept of multiple grid simulation is found in gstat, found at http://www.geog.uu.nl/gstat/ Suppose you want to...
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Edzer J. Pebesma
e.pebesma@...
Dec 1, 2000 9:49 pm
... For maximum pure-ness: yes. (But then we should also use global neigbourhoods all the time :-) You can of course do this, if you've got the time and ...
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jeff.myers@...
Dec 1, 2000 9:49 pm
Ooops! The seminar is on December 12, 2000. Jeff -- * To post a message to the list, send it to ai-geostats@... * As a general service to the users,...
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Isobel Clark
drisobelclark@...
Dec 1, 2000 9:49 pm
... Sounds really fast, which is an advantage but is't this outweighed by the fact that you have to follow the same path every time? I understood from the ...
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jeff.myers@...
Dec 1, 2000 9:49 pm
For those of you who happen to live in the Denver, Colorado area, I will be giving a half-day seminar on geostatistical applications at the former Rocky Flats...
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Isobel Clark
drisobelclark@...
Dec 5, 2000 8:19 am
Those of you interested might like to know that the textbook Practical Geostatistics 2000 (by Isobel Clark and Bill Harper) is being adopted for teaching ...
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remko duursma
rduursma@...
Dec 5, 2000 8:19 am
Dear listmembers, I have a question: "How much of the world's forests are located on slopes greater than 10%?" Ideally, an answer would consist of a frequency...
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Patrick van Laake
vanlaake@...
Dec 5, 2000 8:19 am
... Remco, I suggest you browse to the website of the EROS Data Center of the USGS. There you can pick up GTOPO30, a 30 arc-second DEM from which you can...
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Chuck Ehlschlaeger
chuck@...
Dec 5, 2000 8:19 am
... Before you spend time downloading files, you should ask yourself the following questions: 1) What is MY definition of slope? Do you want to use slope...
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Patrick van Laake
vanlaake@...
Dec 5, 2000 11:02 pm
... Chuck, I completely agree with you. Too many people already use data that is not suitable for the kind of analysis they are trying to perform, either...
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Martin Hodder (ntl)
martin@...
Dec 6, 2000 6:31 pm
Hello, I am a newbie to this list and to the areas of spatial statistics. I am currently using the HUFF spatial function, but I heard there is a new algorithm....
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Berterretche, Mercedes
Mercedes.Berterretche...
Dec 10, 2000 11:39 am
I'm working with field data (plots of 25 x 25 m) and satellite images (Landsat 25 x 25 m and Ikonos 4 x 4 m). I've been using some geostatistical procedures...
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Bambang Trisasongko
bht@...
Dec 10, 2000 11:39 am
... Mercedes, I am also interested on multiresolution analysis. I had several works using MRA, some based on Jim Vrabel's work. However, I do not have any...
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Isobel Clark
drisobelclark@...
Dec 10, 2000 11:39 am
... you could solve the problem by using non co-located cokriging -- what Bill Harper and I called MUCK when we invented it back in the mid 1980s. Both kinds...
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Chuck Ehlschlaeger
chuck@...
Dec 13, 2000 7:01 pm
... The following papers deal with multiresolution analysis, the first analyzing area class data, the 2nd and 3rd analyzing continuous data. All three articles...
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Jennifer Dungan
jdungan@...
Dec 15, 2000 11:56 am
... Hi Mercedes, Knowing a little about these data, I know your variable of interest is measured in the field. It is therefore defined on the 25 x 25m...
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Jonathan Seaquist
jonathan.seaquist@...
Dec 15, 2000 11:56 am
Greetings Dear Members, My question will be brief and stems from my own confusion regarding 'regression kriging'; Basically, what is the difference between...
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Celia Bulit
cbulit@...
Dec 21, 2000 3:16 pm
Dear all: does anyone help me about deleting some pairs using Variowin? This option (F11) appears inactive when I am trying to look at the pairs. thanks a lot...
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Isobel Clark
drisobelclark@...
Dec 21, 2000 3:16 pm
... At the risk of having my knuckles rapped again, this issue is explained clearly in Chapter 3 of Practical Geostatistics 1979 by Isobel Clark, which is...
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mercury1@...
Dec 21, 2000 3:17 pm
Hi Folks! This is my first post to this list. Hope it is not out of place. I need a way to compare two small populations (very small sample sizes..5 and...
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J-F Lenain - L.A.S.E.H.
lenain@...
Dec 21, 2000 3:17 pm
You can use nonparametric tests like bootstrap or permutation (randomization) tests: they give better results with nonnormal and small samples. they can be...
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Berterretche, Mercedes
Mercedes.Berterretche...
Dec 21, 2000 3:18 pm
I would like to thank all the suggestions I received to work with data at different resolutions. In some of the suggested papers, the performance of the...
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McKenna, Sean A
samcken@...
Dec 21, 2000 3:19 pm
Our department at Sandia National Laboratories in Albuquerque, New Mexico, USA is looking for a permanent hire in the general area of spatial statistics. The...
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Duane F. Marble
marble.1@...
Dec 21, 2000 3:19 pm
Moving entities leave continuous space-time tracks. These may be trucks, animals, ships, etc. We often sample these tracks so that the location of the entity...
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Pol Hermans
pol.hermans@...
Dec 21, 2000 3:19 pm
Dear members of the list, I'm a mining engineering student, following an introductional geostatistics course (22.5h). In a theoretical exercise, a...
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Eric LEWIN
eric.lewin@...
Dec 21, 2000 3:19 pm
... My thinking is that, on one hand, there is no theoretical lower limit to the minimum number of data, except the evident "at least one" ! (or two if some...
