BACKGROUND

My principal resources for studying geostatistics are:

1. "An Introduction to Applied Geostatistics" by Edward H. Isaaks and R. Mohan Srivastava, 1989, Oxford University Press, ISBN 0195050134.
    
2. "Data Analysis in the Earth Sciences Using Matlab" by Gerard V. Middleton, 2000, Prentice Hall, ISBN 0133935051. (Section 8.4: Geostatistics.)

This page introduces you to my geostatistics data sets.

Thanks to Jef Caers (Stanford University) and R. Mohan Srivastava, I assembled the data sets of Reference 1.

EXHAUSTIVE DATA

Here, I present the Walker Lake data set as two files:

File walker1.dat is from one of the above gentlemen. File walker1.dat has four columns: x, y, U, V (in that order).
 
File walker2.dat has five columns. The fifth column has the "T" values.

I might consider walker2.dat complete and not offer walker1.dat. But since I created walker2.dat, and since I am imperfect, I include walker1.dat from The Masters so you might feel more comfortable.

The x-coordinate and y-coordinate values are only for reference. (Well, I have never found a need for those columns in computations.) How did I separate the columns of data? One way: I used commands in the "vi/ex" editor. Another way: I read the entire file (after deleting the header lines) into Matlab. Once there, I assigned columns from the initial array to 1-D arrays.

Or, you can copy the individual columns of data from here:

u1all.dat,  v1all.dat,  t1all.dat.

Once you have individual columns, you probably want to convert them to 2-D arrays. Or, you can copy the individually gridded data from here:

ugrid.dat,  vgrid.dat,  tgrid.dat.

Isn't this an easy way to start?   User beware!   I strongly suggest that you plot your data. (I use Matlab's simple contour command.) Compare your plots to Figure 1.1, p.5, for the U and V data and Figure 5.5, p.74, for the T data. Satisfy yourself that your data are correctly oriented.

PATCH DATA FOR CHAPTERS 2, 3, 4

Chapters 2, 3, and 4 use 10 x 10 patches from the exhaustive V and U data sets. Below, for your pleasure, are these data presented in different ways.

100.dat: the 100 x, y, U, V data in four columns with a header line to identify the columns.
100u.dat: the 100 U values in a single column.
1010u.dat: the 100 U values as a 10 x 10 grid.
100v.dat: the 100 V values in a single column.
1010v.dat: the 100 V values as a 10 x 10 grid.

Verify the data by referring to Figures 2.1 and 3.1. Be aware that the rows of the Figures are reversed from the rows of my 10x10 data sets. My origin is the upper left corner whereas the origin used in the Figures is the lower left corner. This comes out fine when plotted in Matlab. Check it for yourself!