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| | Encyclopedia :: encyclopedia : Köppen climate classification (Site not responding. Last check: 2007-11-01) |
 | | Occasionally, a third, lower-case letter is added to ET climates if either the summer or winter is clearly drier than the other half of the year; thus Qikiqtaruk, or Herschel Island, off the coast of Canada's Yukon Territory, becomes ETw, with Pic du Midi de Bigorre in the French Pyrenees acquiring an ETs designation. |
 | | If the precipitation is more or less evenly spread throughout the year, ETf may be used, such as for Hebron, Labrador. |
 | | Seasonal precipitation letters are almost never attached to EF climates, mainly due to the difficulty in distinguishing between falling and blowing snow, as snow is the sole source of moisture in these climates. |
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