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Author: Harry Thomas Gisborne Publisher: Forgotten Books ISBN: 9781527834774 Category : Languages : en Pages : 68
Book Description
Excerpt from Measuring Fire Weather and Forest Inflammability In October or November of each year all meteorological equipment should be checked over, and before April 1 all damaged instruments should be repaired or replaced. At stations where measurements are discontinued at the close of each fire season all instruments should be carefully cleaned at that time and safely stored to prevent theft or damage during the winter. Unless this is done there may be un desirable delay in beginning measurements in the spring. Chart forms for all automatic recording instruments should always be clearly labelled to show station represented and dates included. It is best to write the date above the noon line for each day, and the station name in the blank space at one end of the chart. Proper designation of each chart record is highly important in order to prevent confusion and perhaps later loss of the data. 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.
Author: Harry Thomas Gisborne Publisher: Forgotten Books ISBN: 9781527834774 Category : Languages : en Pages : 68
Book Description
Excerpt from Measuring Fire Weather and Forest Inflammability In October or November of each year all meteorological equipment should be checked over, and before April 1 all damaged instruments should be repaired or replaced. At stations where measurements are discontinued at the close of each fire season all instruments should be carefully cleaned at that time and safely stored to prevent theft or damage during the winter. Unless this is done there may be un desirable delay in beginning measurements in the spring. Chart forms for all automatic recording instruments should always be clearly labelled to show station represented and dates included. It is best to write the date above the noon line for each day, and the station name in the blank space at one end of the chart. Proper designation of each chart record is highly important in order to prevent confusion and perhaps later loss of the data. 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.
Author: Ralph Melvin Nelson Publisher: Forgotten Books ISBN: 9781528123204 Category : Technology & Engineering Languages : en Pages : 32
Book Description
Excerpt from How to Measure Forest Fire Danger in the Southeast Much emphasis is placed on close adherence to standards of location and operation. If not observed, the relative weights given to the several variables on the meters will no longer apply and results will be erroneous. 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.
Author: George M. Jemison Publisher: Forgotten Books ISBN: 9780266824633 Category : Languages : en Pages : 66
Book Description
Excerpt from The Measurement of Forest Fire Danger in the Eastern United States and Its Application in Fire Prevention and Control: A Progress Report; January 1, 1942 It points out the small changes in fire danger conditions which may greatly influence the difficulty of fire control. 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.
Author: Arthur P. Brackebusch Publisher: Forgotten Books ISBN: 9780265893296 Category : Languages : en Pages : 62
Book Description
Excerpt from Gain and Loss of Moisture in Large Forest Fuels Log moisture content did not provide a usable index of seasonal, monthly, or current fire danger severity. There are two main reasons for the failure' (1) fire danger, as now measured, is based upon the moisture content of fine fuels, which respond to weather much more rapidly than logs, and (2) two logs of approximately the same size had such different moisture contents at one time and from one time to another that the results from one were not comparable with the results from the other. Log moisture was found to decrease continuously, almost without regard to midsummer rain, from the last decade of June, which received approximately inch of rain, to the first decade after August 15 that received a similar amount. Rain falling between June 25 and August 15 had practically-no lasting effect upon log moisture content. Fire danger, in fuel types which include much pole and log-sized fuel, can be expected to increase greatly between July 10 and August 15 because of constant moisture losses. The present system of fire danger measurement makes no allowance for any intensification of the cumulative factor of danger during this period. The evidence indicates that the two main factors which determine how dry a log will become are its moisture content at the beginning of the summer desiccation period, and the length of the desiccation period. The log moisture at the beginning of the period will depend to a large extent on the amount of spring rain. It is therefore believed that a good index of the inflammability of large fuels during late season can be worked out on the basis of the amount of spring rain and the length of the summer desiccation period. A direct measure of log flammability can be obtained by measuring the average moisture content of the logs themselves, provided logs of the same size can be found which will have the same moisture content at any time and which will react the same from year to year. 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.
Author: Stuart Bevier Show Publisher: Forgotten Books ISBN: 9780483110564 Category : Business & Economics Languages : en Pages : 30
Book Description
Excerpt from Weather Conditions and Forest Fires in California Comparing further the evaporation and the humidity records, it is found that days of equal evaporation may be either days of low relative humidity and low wind movement, or days of high relative humidit and high wind movement. Whether or not such days are of equa importance so far as fires are concerned is at least open to question. The evaporation records generally do not show as high peaks in September as in June, although the fire history demon strates conclusively that the September periods are incomparably worse than those earlier in the year. The investigations of evapora tion from water surface have shown conclusively the importance of sunshine in the evaporations formulae; and this may be the factor that is operative in our records since obviously the number of hours of sunshine per day is considerably less in September than in June. At any rate, it is by no means proved that evaporation is anything more than a general indicator of fire hazard. However, it is undoubtedly true that within a short period, when evaporation is increasing, fire hazard likewise is increasing, but not necessarily in the same ratio in which the evaporation changes. If a longer record is considered, as for an entire fire season, it does not follow at all that days of equal evaporation represent days of equal fire hazard. In general, it may be fairly said of evaporation records that the days of highest evaporation do not always correspond to the days of greatest fire hazard. In many of the records, although days of great fire hazard correspond to peaks of evaporation, these peaks are not necessarily the highest of the season. It was believed originally that it would be possible to establish absolute rates of evaporation as indicating different degrees of fire hazard. An examination of the data at hand does not permit any such distinction to be made. Some of the highest absolute rates are attained at points of considerable elevation and relatively low rates at points in the foothill and lower forest region. The value of the evaporation data would seem to lie purely in the direction and gen eral elevation of the curve. Any fine-drawn attempts to establish a mathematical basis of forecasting is going far beyond the capacities of the present instruments. The data are, however, of the highest value in post-season studies, and undoubtedly a series of records over a period of years may prove of decided advantage in deter mining the relative difficulty of handling fires in the different seasons and in deciding whether any long-time fluctuations, as demanded by the sun-spot theory, have taken place. 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.
Author: Harry Thomas Gisborne
Author: Harry Thomas Gisborne
Author: Harry Thomas Gisborne
Author: U.S. National Park Service. Branch of Forestry
Author: H. T. Gisborne
Author: United States. Department of Agriculture
Author: Ralph Melvin Nelson
Author: George M. Jemison
Author: Arthur P. Brackebusch
Author: ANSON WILLIAM. LINDENMUTH
Author: Stuart Bevier Show