### Convert a map file from IMAGE 2.2 SRES scenarios

This application converts the binary map files of the IMAGE CD into asciiGrid files, which can be read by GIS software. The asciiGrid file consists of a map header and 720 by 360 numbers. NODATA is represented by -9999.

You can select one file or all the files in a directory to convert. The default option is converting one file.

An IMAGE map-file is composed of data about multiple years (usually 5) and in some cases also about an extra dimension (i.e. crop type). Conversion results in a asciiGrid file per year per dimension (if applicable). The files will be stored in the selected outputdirectory and will be named: <filename>_<year>[_<dimension number>].asc

Converting an IMAGE map file requires the next steps:

1. Find the data
2. Find out the name of a IMAGE map
3. Convert the file(s) with this application

#### How to find the data

The data are organised per scenario. The folder data contains the scenario subfolders (i.e. B1, B2, A2, etc.). Each scenario-folder contains a map folder with all the mapfiles of that scenario. You can select the Whole directory option and browse to the map folder of a particular scenario or select the one file option and browse to the file to convert. Note: converting a whole directory will result in approximately 250 MB data.

#### How to determine the name of a particular IMAGE map

- Start the User Support System (USS)
- Navigate to and select the map (blue boxes in USS) you want to convert
- Go to menubar Edit and select Widget; a dialog appears
- The filename is the uppercase part of the widget property.

For example: in case of the landcover map the widget property is:
integer GLCTb[66663](t)
The filename of the map is the Uppercase string GLCT

#### How to convert the file

- Start m2Gis.exe
- Choose between the options one file or whole directory
- Browse to the scenario folder, the map folder and select the file (option one file) or select the map folder (option whole directory)
- Browse to an outputdirectory on your system
- Activate convert
- Wait until finished....