Download variowin.zip from Basics for using Variowin Download variowin.zip from http://www-sst.unil.ch/research/variowin/#DOWNLOAD

Variowin 2.21 Installation unzip variowin.zip in a temp directory run Install.exe to get the bellow variowin 2.2 folder

Variowin 2.21 Prevar2D Module Prevar2D – A program for computing a 2D pair comparison file from a Geo-EAS data file

Variowin 2.21 Prevar2D Module Opening an Input File (.dat) Click on the Open option of the File menu of Prevar2D to get the File Open window. Chose a .dat file and Click on the OK button of this window. Partial Contents of the Example.dat file Example.dat - Geostatistical Environmental Assessment Software 5 Easting Northing Arsenic ppm G16.9 stored in columns 21-30. Cadmium ppm F10.3 Also, notice the 'ROW Identifier' below. This Lead ppm F10.3 is not counted as a variable (must use quotes) 288.0 311.0 .850 11.5 18.25 'Sample 1' 285.6 288.0 .630 8.50 30.25 'Sample 2' 273.6 269.0 1.02 7.00 20.00 'Sample 3' 280.8 249.0 1.02 10.7 19.25 'Sample 4' 273.6 231.0 1.01 11.2 151.5 'Sample 5' 276.0 206.0 1.47 11.6 37.50 'Sample 6' 285.6 182.0 .720 7.20 80.00 'Sample 7' 288.0 164.0 .300 5.70 46.00 'Sample 8' 292.8 137.0 .360 5.20 10.00 'Sample 9' 278.4 119.0 .700 7.20 13.00 'Sample 10' 360.0 315.0 .050 3.90 21.25 'Sample 11'

Variowin 2.21 Prevar2D Module Setting XY Coordinates Click on the XY-Coordinates… of the Settings menu option. Choose X and Y coordinates and press OK button. Setting Limits Click on the Limits… of the Settings menu option. Choose the Attribute name and press the Apply and then the Exit button. 1 2 3

Variowin 2.21 Prevar2D Module Prevar2D – A program for computing a 2D pair comparison file from a Geo-EAS data file Running Prevar2D Press the Run! option of the Prevar2D window menu in order to create the .pcf (Pair Comparison File) file that will be used as input for the Vario2D with pcf Module

Variowin 2.21 Vario2D Module

Variowin 2.21 Vario2D Module Opening a .pcf file In the Open option of the File menu choose a pcf file to be used for creating variograms. Press OK after the file was choosen. Setting variogram parameters Click on the Settings… option of the menu bar to open the Settings window. Click on the options you want to use as settings for the variograms’ creation. Click on the Apply button to end your choices.

Variowin 2.21 Vario2D Module

Variowin 2.21 Vario2D Module

Variowin 2.21 Vario2D Module

Variowin 2.21 Model Module

Choosing the variogram Variowin 2.21 Model Module Opening a .var file In the Open option of the File menu choose a variogram file (.var) to be used for model the variograms. Press OK after the file was choosen. Choosing the variogram Choose one variogram of the list that appears in the Experimental variograms window. Press OK button after your choice.

Variowin 2.21 Model Module Setting model parameters Click on the Settings… option of the menu bar to open the Settings window. Click on the options you want to use as settings for the variograms’ model. Click on the Apply button to end your choices.

Modeling the Variograms Variowin 2.21 Model Module Modeling the experimental variogram Modeling the Variograms Click on the Model option of the menu bar of the Model Window Change Parameter values to model the experimental variograms Try to find a modeled variogram with a good fit, small Nugget, Sill next to the global Covariance and a reasonable Range Click on Store button to store the variogram modeled parameters

Variowin 2.21 Grid Display Module

Variowin 2.21 EXAMPLE WITH ELEVATION DATA FROM CANCHIM REGION USING RESIDUAL ELEVATIONS

Variowin 2.21 Prevar2D Module Opening an Input File (.dat) Click on the Open option of the File menu of Prevar2D to get the File Open window. Chose a .dat file and Click on the OK button of this window. Partial Contents of the elevfilt.dat file

Variowin 2.21 Prevar2D Module Settings XY Coordinates, Limits and Run !

Variowin 2.21 Vario2D Module Opening a .pcf file In the Open option of the File menu choose a pcf file to be used for creating variograms. Press OK after the file was choosen. Setting variogram parameters Click on the Settings… option of the menu bar to open the Settings window. Click on the options you want to use as settings for the variograms’ creation. Click on the Apply button to end your choices.

Variowin 2.21 Vario2D Module Displaying Variogram Surfaces Choose Variogram Surface… of the Calculate option of the Vario2D menu. Choose a Variable Name, set other window parameters and press the OK button tho show the Variogram Surface.

Variowin 2.21 Vario2D Module Displaying Directional Variograms Choose Directional Variogram… of the Calculate option of the Vario2D menu. Choose a Variable Name, set other window parameters and press the OK button tho show the Variogram.

Variowin 2.21 Vario2D Module Saving the Variogram File Choose Save As… of the File option of the Vario2D menu. Type a name in the Filename: text field. Press the OK button to save the .var file in the current Directory. The saved file will have a table format and will contain the variogram and its associated values (means and variances)

Choosing the variogram Variowin 2.21 Model Module Opening a .var file In the Open option of the File menu choose a variogram file (.var) to be used for model the variograms. Press OK after the file was choosen. Choosing the variogram Choose one variogram of the list that appears in the Experimental variograms window. Press OK button after your choice.

Variowin 2.21 Model Module Setting model parameters Click on the Settings… option of the menu bar to open the Settings window. Click on the options you want to use as settings for the variograms’ model. Click on the Apply button to end your choices.

Modeling the Variograms Variowin 2.21 Model Module Modeling the experimental variogram – Exponencial Model Modeling the Variograms Click on the Model option of the menu bar of the Model Window Change Parameter values to model the experimental variograms Try to find a modeled variogram with a good fit, small Nugget, Sill next to the global Covariance and a reasonable Range Click on Store button to store the variogram modeled parameters

Modeling the Variograms Variowin 2.21 Model Module Modeling the experimental variogram – Spherical Model Modeling the Variograms Click on the Model option of the menu bar of the Model Window Change Parameter values to model the experimental variograms Try to find a modeled variogram with a good fit, small Nugget, Sill next to the global Covariance and a reasonable Range Click on Store button to store the variogram modeled parameters

Variowin 2.21 Model Module Modeling experimental variograms – Exponential Models – VarioWin and SPRING Nugget Effect = 2.3, Range = 980.75, Sill = 198.83,