WFM = PREGRN + [ (WOODA + WOODB * MClOOO) - PREGRN] * GREN 



pregreen minimum moisture 



climate dependent intercept and slope from table 3 

 1000-h TL fuel moisture 



fraction of the greening-up period that has elapsed 



If a second green-up occurs during a growing season, the woody fuel moisture in- 

 creases from its current value instead of from the pregreen value. 



After greenup is complete, (GREN = 1.0) the woody fuel moisture is calculated from: 



WFM = WOODA + WOODB * MClOOO 



until the shrubs become dormant. At that time the woody fuel moisture is set back to 

 the minimum value specified by the climate class. Figure 8 illustrates a typical woody 

 fuel moisture profile and its relation to the 1000-h TL fuel moisture. 



where: PREGRN = 



WOODA, 

 WOODB 



MClOOO = 

 GREN 



14 



