Steps involved in the live access example:

• Browser requests GIF image from PMEL site.
  
  
• PMEL Live Access Server passes request to Ferret.
  
  
• Ferret requests subset of monthly COADS SST data from local disc.
  
  
• Ferret requests subset of monthly NCEP Marine data from CDC/NOAA in Boulder.
  
  
• Ferret regrids COADS to NCEP grid, differences, generates a GIF image and returns the GIF image to the Live Access Server.
  
  
• Live Access Server returns GIF image to the browser.