Vietnam War: Forest Fire as a Military Weapon - Paperless Archives
Vietnam War: Forest Fire as a Military Weapon - Paperless Archives
Vietnam War: Forest Fire as a Military Weapon - Paperless Archives
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SECRET<br />
CLIMATE MI-NHSB<br />
MILD WINTER, NON-HUMID, SHORT BURN SEASON<br />
Cool to frosty subtropical and similar climates-nearly frostfree to occ<strong>as</strong>ional frosts-having low to moderate<br />
(+) values and low (-) values for the year, 1-4 "B" months. Examples are:<br />
Precipitation No. of Months Yearly Humidity Values<br />
Location Pattern "H_ "D' "B" t H<br />
Rosario. Argen. Steppe 5 0 1 +90 -i<br />
Austin, Tex<strong>as</strong> Steppe I 3 3 +49 -22<br />
(NOTE: This climate and FF-NHSB are of limited occurrence. <strong>War</strong>m or hot climates that are non-humid will<br />
usually have a long burning se<strong>as</strong>on.)<br />
Temperature: Slows plant growth during winter, but gr<strong>as</strong>ses are green at that time.<br />
Precipitation: Limits growth of trees, steppe pattern favors gr<strong>as</strong>sland.<br />
Major vegtation ty•s: Gr<strong>as</strong>sland with woodland thickets.<br />
Ground-story vegetation: Gr<strong>as</strong>s and low shrubs.<br />
Amount: Low to moderate dry weight.<br />
Moisture content: low at end of dry se<strong>as</strong>on.<br />
Litter lat:<br />
Mainly current gr<strong>as</strong>s production, little accumulation.<br />
Total available fuel weight onaa good burning day: 0.16 pounds per square foot.<br />
Burn days: Fairly definite burning period at the driest locations, but burn days are not predictable under the<br />
moister steppe climates.<br />
Desiccation needs: Not needed except in woodland thickets, which should receive a foliar spray of 3 lý . a.c., of<br />
a 1: 1 mix of 2,4-D and 2,4,5-T in diesel oil to make a total of S gallons per acre.<br />
Dates for example location (Austin, Tex<strong>as</strong>, Fig. B9):<br />
I. Spray in late March or early April.<br />
2. Burn in August.<br />
I<br />
iSECRET 3.23