Fire Control Notes 1951 Vol 12

Excerpt from Fire Control Notes, 1951, Vol. 12: A Periodical Devoted to the Technique of Forest Fire Control In order to separate the effects of risk and flammability (burning index), a method of rating the severity of fire seasons, reported in a previous article,2 is used. Briefly, the number of expected fires is calculated from the cumulated burning indexes as reported from the fire-danger stations, assuming for purposes of the calculation that an unchanging risk prevails. Then the expected and the actual number of fires are plotted for a number of years. To show this, data from all northeastern national forests and States, excepting Delaware (for which information is not available), are graphed in figure 1. It is evident that both the number of actual and expected fires took a sharp upswing in 1949. The trends are not exactly the same but the amount of divergence is small - 1949 ratio 1948 ratio For the region as a whole, the risk was almost the same in 1949 as it was in 1948, and it can therefore be concluded that the difference in the number of fires between the years was caused by weather conditions. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.