title: How to set chunk size of netCDF4 in python?
body: <p>I can see the default chunking setting in netCDF4 library, but I have no idea how to change the chunk size.</p>
  
  <pre><code>from netCDF4 import Dataset    
  volcgrp = Dataset('datasets/volcano.nc', 'r')
  data = volcgrp.variables['abso4']
  print data.shape
  print data.chunking()
  &gt;(8, 96, 192)
  &gt;[1, 96, 192]
  </code></pre>
  
  <p>Is there anyone who can help with the setting?</p>