title: gzip compression ratio of an ASCII file
body: <p>So I have a <a href="http://i.stack.imgur.com/v2gwd.png" rel="nofollow">remote sensing image</a> in an ASCII format packed as *.gz
  <br>
  <br>
  Packed file has 7.46 MB<br>
  Unpacked file has 635 MB
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  What is the reason for that? Is it a matter of gzip compression method or a structure of an ASCII file?
  <br><br></p>