Vietnam War: Forest Fire as a Military Weapon - Paperless Archives

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CLIMATE CL-HUYL
COOL WINTER; HUMID YEARLONG
Cool to semi-cold marine, frosty subtropical, and warm continental climates-with winter frosts-having no -D"
months and no *B" months. Examples are:
Precipitation No. of Months Yearly Humidi y Valu4s
Location Pattern "H' 'D" "B
Alexandria, La. Humid 6 0 0 + 186 0
Vicksburg, Miss. Humid 8 0 0 +257 0
Table Mtn., S. Aft. Humid 9 0 0 +329 0
Columbia. S.C. Humid 6 0 0 +205 0
Atlanta, Ga. Humid 6 0 0 +252 0
Little Rock, Ark. Humid 7 0 0 +197 0
Tatoosh L., Wash. Humid 12 0 0 +386 0
Holyhead Wales Humid 12 0 0 +339 0
Edinburgh, Scot. Humid 12 0 0 +306 0
Temperatun: Some evergreen woody plants and many gasses grow through the winter. Typically, the winter frosts
restrict occurrence of broad-leaved evergreen trees.
freciipttation: Not limiting under the typical humid precipitation pattern, except for short dry periods in most years,
Major veetation types: Mainly deciduous hardwood or conifer forests, with many mixtures of the two. Heath
grows under coolest marine climates.
Ground-story vegctation: Under forest canopy the woody plants are tree seedlings, vines, and scattered shrubs.
Heath or grass occur outside of forest types.
Amount: Low to moderate dry weight.
Moisture content: High most of year; lowest in the Fall.
Litter layer: Mainly current leaf fail and grass rough; some accumulation of old dead material, especially in coolest
Total available fuel weight on a good burning day: 0.16 pounds per square foot in hardwaods; 0.23 pounds per
square foot in conifers.
Burn days: No bum season; best odds during driest Fall months.
Desiccation needs: Must remove forest canopy and kill understory woody plants for successful burning. Use either
a foliage spray or an application of pellets to the soil.
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