A method is presented to calculate the incident radiant heat flux and the temperatures reached on any point of a tank surface when this tank is engulfed in a pool-fire during the fire transitory state (developing phase). 1he method used to calculate the radiant heat flux on the cylinder is based on a three-dimensional formulation and uses the definition of a surface to establish the flame conto...

8 A comprehensive model for predicting the dynamics of spills from LNG and oil product tankers 9 is constructed from fluid mechanics principles and empirical properties of oil and LNG spills on 10 water. The analysis utilizes the significant tanker hold and discharge flow area dimensions to specify 11 the cargo liquid outflow history and the ensuing pool characteristics, including the establish...

A comprehensive and quantitative evaluation of the effects of fire on ecosystem nitrogen (N) is urgently needed for directing future fire research and management. This study used a meta-analysis method to synthesize up to 185 data sets from 87 studies published from 1955 to 1999. Six N response variables related to fire were examined: fuel N amount (FNA) and concentration (FNC), soil N amount (...

Temperate forest soils store globally significant amounts of carbon (C) and nitrogen (N). Understanding how soil pools of these two elements change in response to disturbance and management is critical to maintaining ecosystem services such as forest productivity, greenhouse gas mitigation, and water resource protection. Fire is one of the principal disturbances acting on forest soil C and N st...

Fire is a major natural disturbance factor in boreal forests, and the frequency of forest fires is predicted to increase due to climate change. Nitrogen (N) is a key determinant of carbon sequestration in boreal forests because the shortage of N limits tree growth. We studied changes in N pools and fluxes, and the overall N balance across a 155-year non stand-replacing fire chronosequence in su...

Date_____________ The final copy of this thesis has been examined by the signators, and we find that both the content and the form meet acceptable presentation standards of scholarly work in the above mentioned discipline. Thesis directed by Professor Carol A. Wessman Soil carbon is the largest pool of terrestrial organic carbon. Black carbon (BC) is the most recalcitrant fraction of that pool....