Sunday, March 29, 2009

Progress for 3/29

Today I took time to fix all the DEM data so that I would have one large file that covered the entire study area. Before i executed the merge operation, I had to compile all the DEM quads that I had for merging.

After i had all the data collected I did the Merge command for every 15 DEM files. I did this because last night I set all the files to Merge and it ended up not finishing when I left it overnight. Since i did the DEM merges in sections, I ended up with about 15 new DEM files, which I ended up merging into the final, large DEM file.

All this took quite a long time since the processing required to merge the DEM files is very high. The data size of the DEM is also another issue since it takes up more that 1GB on my computer.

Tomorrow I will be creating slope, aspect, and insolation files from the new merged DEM files that I created today.

Currently completed 34/90 hours as of 3/29/2009

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