Index of ftp://polar.ncep.noaa.gov/arc/data/ifr_alt
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![[DIR]](/icons/folder.gif) env | 8.00Kb | March 2 2011 |
| er1 | 8.00Kb | March 2 2011 |
| er2 | 16.00Kb | March 2 2011 |
| gfo | 8.00Kb | March 2 2011 |
| js1 | 8.00Kb | March 2 2011 |
| js2 | 4.00Kb | March 2 2011 |
| psd | 4.00Kb | March 2 2011 |
| tpx | 16.00Kb | March 2 2011 |