Download or read book Canadian Forest Fire Weather Index as a Predictor of Soil Moisture Content written by R. S. McAlpine and published by . This book was released on 1983 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Canadian Forest Fire Weather Index System as a Predictor of Total Soil Moisture Content as Estimated by the Thornthwaite Water Balance written by R. S. McAlpine and published by . This book was released on with total page 2 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 Development and Structure of the Canadian Forest Fire Weather Index System written by C. E. Van Wagner and published by . This book was released on 1987 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparing the Fire Danger Rating Systems of Canada and the US FWI versus NFDRS written by Benjamin Schwarz and published by GRIN Verlag. This book was released on 2014-09-01 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seminar paper from the year 2014 in the subject Forestry / Forestry Economics, grade: 1,3, University of Toronto, language: English, abstract: This paper describes and compares conceptually the Fire Weather Index (FWI) system of Canada and the National Fire Danger Rating System (NFDRS) of the USA. The relatively simple FWI system rates fire danger for all Canada and is based on empirical field-data derived from a single fuel type. The laboratory-based NFDRS, in contrast, allows more specification for distinct fire danger areas and models fuel moisture more abstract and in different classifications. Relative strengths and weaknesses with regard to the vegetative conditions in the particular country are discussed. The use of empirical data and the good and simple representation of soil moisture are the major strengths of the FWI system. The NFDRS wins through its possibility to model specifically a distinct fire danger area and through the consideration of live fuel moisture content. The conclusion of this paper is that both systems can benefit from each other. A combination of the simplicity of the FWI and specialization on a distinct area through the site descriptors similar to the ones of the NFDRS is proposed.
Download or read book Publication written by Canadian Forestry Service and published by . This book was released on 1972 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diurnal Variation in the Fine Fuel Moisture Code written by B. D. Lawson and published by Canadian Forest Service. This book was released on 1996 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest fire managers must be able to predict the normal variation in fine fuel moisture around the clock, since it is a critical factor that affects the behaviour and control of wildfires and prescribed burns. The Canadian Forest Fire Weather Index System contains a Fine Fuel Moisture Code (FFMC) that produces a standard daily index of expected fine fuel moisture at the mid-afternoon peak of fire danger, but does not output normal diurnal variation in FFMC. This paper documents the development and updating of an earlier model of diurnal variation in FFMC, presents the underlying equations and a lookup table, and announces the availability of a computer program version of the model for various user applications.
Download or read book Tables for the Canadian Forest Fire Weather Index System written by Canadian Forestry Service and published by Environment Canada, Canadian Forestry Service. This book was released on 1984 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fourth edition of tables for calculating the six standardcomponents of the Canadian Forest Fire Weather Index System. Thefirst three components are fuel moisture codes that follow dailychanges in the moisture contents of three classes of forestsfuel; the final three are fire behaviour indexes that representrate of spread, amount of available fuel, and fire intensity. The system provides a uniform method of rating fire danger acrossCanada.
Download or read book Modeling Moisture Content of Fine Dead Wildland Fuels written by Richard C. Rothermel and published by . This book was released on 1986 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes a model for predicting moisture content of fine fuels for use with the BEHAVE fire behavior and fuel modeling system. The model is intended to meet the need for more accurate predictions of fine fuel moisture, particularly in northern conifer stands and on days following rain. The model is based on the Canadian Fine Fuel Moisture Code (FFMC), modified to account for solar heating of fuels and to predict diurnal trends in fine fuel moisture. The model may be initiated without extensive data on prior weather. When compared to the FFMC and the fire behavior officers' procedures, the new model gave consistently better predictions over the complete range of fuel conditions.
Download or read book Structure of the Canadian Forest Fire Weather Index written by C. E. Van Wagner and published by . This book was released on 1974 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Forest Fire Weather Index Tables written by and published by . This book was released on 1978 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Forest Research written by and published by . This book was released on 2015 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Drought Code Component of the Canadian Forest Fire Behavior System written by J. A. Turner and published by Department of the Environment, Canadian Forestry Service ; Information Canada. This book was released on 1972 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ground truthing the Drought Code written by Bruce D. Lawson and published by . This book was released on 1996 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Users of the Canadian Forest Fire Weather Index System are required to precede computation of the drought code component each spring by first calculating a mathematical model of overwinter recharge of moisture in the forest floor. Limitations of the model, required for operational simplicity, have led to requests for a field sampling procedure that can be used to verify the model when and where desired. This report describes a standard procedure for destructively sampling the forest floor by depth class, oven-drying the material, and comparing the actual moisture contents against empirically derived regression equations of forest floor moisture versus drought code for representative mature coastal and interior British Columbia forests, and for white spruce forests in southern Yukon. The field verification procedures and calibration equations presented will be applicable to drought code start-up at any time during the fire season.
Download or read book Equations and FORTRAN Program for the Canadian Forest Fire Weather Index System written by C. E. Van Wagner and published by . This book was released on 1985 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development and Structure of the Canadian Forest Fire Behavior Prediction System written by Canada. Forestry Canada. Fire Danger Group and published by . This book was released on 1992 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Canadian Forest Fire Behavior Prediction (FBP) System is a subsystem of the larger Canadian Forest Fire Danger Rating System, which also includes the Canadian Forest Fire Weather Index (FWI) System. The FBP system provides quantitative estimates of head fire spread rate, fuel consumption, fire intensity and fire description and gives estimates of fire area, perimeter, perimeter growth rate and flank and back fire behaviour. This report describes the structure and content of the system and its use with forest fire characteristics.
Download or read book Conference on Fire and Forest Meteorology written by and published by . This book was released on 1987 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
