Ralph a wilson jr (5 risultati)

Condizione: New.

Condizione: New.

Soft cover. Condizione: Good. ORIGINAL 1966 PUBLICATION; softcovers; ex-corporate library; light foxing of endpages and edges; light creasing of corners of covers and leaves; o/w in good condition. Book.

Paperback. Condizione: New. Print on Demand. This book presents a model for predicting moisture content of fine dead wildland fuels to enhance fire behavior prediction and fuel modeling systems. The model, developed from data taken in pine stands at Petawawa, Ontario, goes beyond current systems by including a method of accounting for the drying of surface fuels by solar radiation. Initial fuel moisture is determined using one of five options based on weather data from the past week. The model can also account for elevation differences by adjusting temperature and humidity to the fire location. The model's accuracy is validated against measured data, and its performance is found to be good in both shaded and sunny conditions. The Canadian Standard Daily Fine Fuel Moisture Code (FFMC) is described, as is a Canadian Hourly Fine Fuel Moisture Code. The book concludes by discussing diurnal predictions, and presents nomenclature, and equations used to derive the model, as well as additional appendices with methods for correcting initial shade conditions and determining sunrise and sunset. This timely book fills an important gap in the literature on fire behavior prediction and fuel modeling. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.…

Paperback. Condizione: New. Print on Demand. This book introduces a groundbreaking model for predicting the moisture content of fine dead wildland fuels, a critical element in assessing wildfire behavior. Building upon existing moisture models, the author incorporates key factors such as solar radiation, shade, and precipitation, addressing limitations in prior methods, particularly underestimation in northern latitudes with forest canopies and inaccuracy after rainfall events. The model leverages the Canadian Fine Fuel Moisture Code, integrating it with diurnal predictions and accounting for elevation differences. The result is a robust system that accurately predicts fuel moisture content throughout the day and night, considering atmospheric conditions, vegetation, and terrain. The book's significance lies in providing fire managers and field personnel with a reliable tool to evaluate fire situations, plan operational strategies, and enhance overall wildfire management practices. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.…