Download or read book Using Fire weather Forecasts and Local Weather Observations in Predicting Burning Index for Individual Fire danger Stations written by Owen P. Cramer and published by . This book was released on 1958 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Using Fire Weather Forecasts and Local Weather Observations in Predicting Burning Index for Individual Fire Danger Stations Classic Reprint written by Owen P. Cramer and published by Forgotten Books. This book was released on 2018-03-17 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Using Fire-Weather Forecasts and Local Weather Observations in Predicting Burning Index for Individual Fire-Danger Stations Any agency engaged in forest-fire control needs accurate weather forecasts and systematic procedures for making the best use of predicted and reported weather information. This study explores the practicability of using several tabular and graphical aids for con verting area forecasts and local observations of relative humidity and wind Speed into predicted values for individual fire-danger stations. Difficulties in preparation and use of these aids by field personnel were investigated during 2 summers on 5 ranger districts in the na tional forests of Oregon and Washington. Emphasis was given to ac curacy of predictions of changes and other situations important to fire control. Actually tested were: (1) aids for adapting area forecasts of wind speed and relative humidity, (2) a procedure for predicting wind speed, (3) aids for the use of predicted relative humidity in forecast ing fuel moisture, and (4) routine statistical procedures for predicting wind Speed, fuel moisture, relative humidity, and burning index class. Performance of the various methods varied considerably be tween stations, depending on the complexity of the relation between station weather and the prevailing weather situation. Aids utilizing area forecasts could not, of course, correct basic forecast errors. Aids based on climatic averages would be incorrect with any depar ture from a normal weather situation. Difficulty of aid preparation was another serious handicap. Nevertheless, certain aids showed real promise for some stations, thus permitting more intensive use of forecasts and other weather information now available. In the course of the study, improvements were made in methods previously suggested for predicting the burning index. But, perhaps most import ant, the study emphasizes that much more research will be needed before fire weather and fire danger can be predicted with enough ac curacy to meet adequately the needs of forest-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.
Download or read book The National Fire Weather Data Library written by Roland William Furman and published by . This book was released on 1975 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Economic Considerations in Douglas fir Stand Establishment written by T. A. McClay and published by . This book was released on 1955 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1952 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book USDA Forest Service General Technical Report PNW written by and published by . This book was released on 1977 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Foresters Almanac 1977 written by and published by . This book was released on 1977 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current Federal Meteorological Research and Development Activities written by United States. Weather Bureau and published by . This book was released on 1963 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Available Publications Pacific Northwest Forest and Range Experiment Station written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1965 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Forester s Almanac written by and published by . This book was released on 1977 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Using Fire Weather Data in Prescribed Fire Planning written by Roland William Furman and published by . This book was released on 1979 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Meteorological and Geoastrophysical Abstracts written by and published by . This book was released on 1997 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Test of Wind Predictions for Peak Fire danger Stations in Oregon and Washington written by Owen P. Cramer and published by . This book was released on 1957 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Changes in Fire Weather Distributions written by Lucy Anne Salazar and published by . This book was released on 1984 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data that represent average worst fire weather for a particular area are used to index daily fire danger; however, they do not account for different locations or diurnal weather changes that significantly affect fire behavior potential. To study the effects that selected changes in weather databases have on computed fire behavior parameters, weather data for the northern Rocky Mountains were treated as probability distributions, then used in computer simulation to estimate distributions of rate-of-spread (ROS) and fireline intensity (FLI). Sensitivity of ROS and FLl to weather input changes was analyzed by varying the source and amount of weather data, and diurnally adjusting temperature and relative humidity. In eight representative cases, a minimum amount of data produced the lowest cumulative probabilities of ROS and FLl, and data from a higher elevation produced the highest values. For long-term planning, within the region studied, a small subset of weather data distributions was adequate for estimating probabilistic distributions of ROS and FLI. Joint probabilities of ROS and FLI differed substantially among test cases. Fire behavior values obtained with observed data were higher than those obtained with diurnally adjusted data. The simulation techniques used are appropriate for use in long-term fire management planning models.
Download or read book Research Paper written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1961 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Weather Guide for the Canadian Forest Fire Danger Rating System written by B. D. Lawson and published by . This book was released on 2008 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: This weather guide includes detailed specifications for locating and instrumenting fire weather stations, taking weather observations, and overwintering the Drought Code component of the FWI System. The sensitivity of the FWI System components to weather elements is represented quantitatively. The importance of weather that is not directly observable is discussed in the context of fuel moisture and fire behavior. Current developments in the observation and measurement of fire weather and the forecasting of fire danger are discussed, along with the implications for the reporting of fire weather of increasingly automated fire management information systems.
Download or read book Fire Management Notes written by and published by . This book was released on 1997 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
