6.9.1. Downloading data and changing projection — COLOSS

with a file archiving program of your choice (if you need additional software for this task, the program “7-zip” is a good choice: ) into your ArcGIS working directory (e.g. the GISBEEBOOK folder). Note: data in zipped folders cannot be seen in ArcGIS applications so you must first unzip. tab in the layer properties, you see that CLC06 is a 1 band raster dataset with 8 bit unsigned integer values (that correspond to different land cover categories) at 100 m horizontal resolution. Because it covers all Europe, the CLC06 raster is quite large and the rendering on the screen may take some time. We will improve the performance by clipping to the extent of interest. The coordinate system is different (ETRS89_ETRS_LAEA) than the one used in Switzerland therefore it is best to project it into the same coordinate reference system as the other layers (CH1903 LV03). Now, add the CLC06 layer into a new blank *.mxd by dragging the layer from ArcCatalog into ArcMap directly, or using the Be patient, this is a large file and it will take some time to complete (~ 10 minutes but depends on your processing system). You will get a pop-up at the bottom right-hand side of your screen when the process has finished. The resulting projected raster (g100_06_ch1903.tif) will be automatically added to the *.mxd. The original CLC06 layer can now be removed from the document as it is no longer needed: Source.

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Last Modified: April 29, 2014 @ 12:00 am