Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 62 for “"forest fire"”.
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Particle Filter Based Mosaicking for Forest Fire Tracking
… size, shape, and location characteristics of a forest fire. However, noise in measurements used to compute pose (location and attitude) of the on-board camera leads to significant errors in the processing of collected video data. Typical methods using MAVs to track fires attempt to find single …
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Integrating remote sensing and terrain data in forest fire modeling
Forest fire policies are changing. Managers now face conflicting imperatives to re-establish pre-suppression fire regimes, while simultaneously preventing resource destruction. They must, therefore, understand the spatial patterns of fires. Geographers can facilitate this understanding by …
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Characterizing Boreal Forest Fire Disturbance Boundaries Through Space And Time In Ontario
The Ontario boreal forest contains vast natural resources but is increasingly threatened by wildland fires, which are becoming more frequent and affecting larger areas due to climate change. In response, this thesis compares wildland fire boundaries derived from vegetation index slopes with those …
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Information Collection in Forest Fire Response Operations; A Foundation for Situation Awareness
The management of an emergency response, like forest fire response, requires high levels of coordination, efficient communication and effective situation awareness within the team. Critical response decisions are based on timely and effective collection and processing of large amounts of constantly …
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Early Forest Fire Detection Using Texture Analysis of Principal Components from Multispectral Video
… spatial attributes of a smoke plume for Early Forest Fire Detection. Image processing techniques are used on multispectral (red, green, blue, mid-wave infrared, and long-wave infrared) video to segment and indentify the presence of a smoke plume within a scene.</p> <p>The temporal and spectral …
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Early Forest Fire Detection Using Texture, Blob Threshold, and Motion Analysis of Principal Components
<p>Forest fires constantly threaten ecological systems, infrastructure and human lives. The purpose behind this study is minimizing the devastating damage caused by forest fires. Since it is impossible to completely avoid their occurrences, it is essential to accomplish a fast and appropriate …
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Early Forest Fire Detection via Principal Component Analysis of Spectral and Temporal Smoke Signature
… analyzed with consideration of wind factor and fire detection range to determine if a fire is present within a scene. Infrared spectral data is shown to contribute little information concerning the smoke signature. Moreover, finalized processing techniques are focused on the blue spectral band …
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Vegetation and Forest Fire Dynamics in Alberta: A Ground and Remote Sensing Data Analysis
… comprehensive analysis of the interplay between forest fires and vegetation dynamics in Alberta, Canada, under the lens of climate change. By synthesizing data from remote sensing, climate records, and fire databases, the study reveals the intricate relationships between vegetation cover changes …
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Three Enabling Technologies for Vision-Based, Forest-Fire Perimeter Surveillance Using Multiple Unmanned Aerial Systems
… process information regarding the condition of forest fires is essential to cost-effective, safe, and efficient fire fighting. Advances in sensory and autopilot technology have made miniature unmanned aerial systems (UASs) an important tool in the acquisition of information. This thesis …
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Forest fire management in Portugal : developing system insights through models of social and physical dynamics
Managing forest fires is a serious national problem in Portugal. Burned area has increased steadily over the past several decades, with particularly devastating years in 2003 and 2005. Ignitions also spike dramatically in summer, which greatly strains firefighting resources and leads to fires that …
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Modeling the Cumulative Effects of Forest Fire on Watershed Hydrology: A Post-fire Application of the Distributed Hydrology-Soil-Vegetation Model (DHSVM)
… a cumulative effects assessment tool in the post-fire landscape of a forested watershed in this region. The model was first calibrated to the pre-fire watershed conditions using six years of historic streamflow data. DHSVM was able to accurately simulate the general shape of the measured …
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Modeling the Cumulative Effects of Forest Fire on Watershed Hydrology: A Post-fire Application of the Distributed Hydrology-Soil-Vegetation Model (DHSVM)
… a cumulative effects assessment tool in the post-fire landscape of a forested watershed in this region. The model was first calibrated to the pre-fire watershed conditions using six years of historic streamflow data. DHSVM was able to accurately simulate the general shape of the measured …
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Improvement of MM5 Model Forecast by Ingesting Newly Archived Satellite Data and Estimation of Forest Fire Emissions Contribution to Ozone Peaks Using CMAQ Modeling System
… in California and Nevada from grid-averaged wildfire emissions from NEI02 (National Emissions Inventory 2002); and (3) investigation of two prescribed fire events to the contribution of O3 peaks to background concentration levels. The 3D-Var code was first modified to use WINDSAT wind vectors as …
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The Development and Testing of a Fire Simulator Exercise
<p>A forest fire simulation exercise was developed for the purpose of supplementing forest fire instruction, presenting students with decision-making situations encountered on forest fires, and introducing them to the fire simulator at Stephen F. Austin State University. The final exercise was …
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The Effects of the Non-Climatic Inhomogeneities in Surface Weather Station Records on Long Term Trends in Canadian Fire Weather Index System Codes.
… interest in the effects of climate change on forest fire regimes, there has been a proliferation of studies analyzing the past fire weather trends using daily surface weather stations data. However, not all studies take account of such data's inherent inconsistencies (inhomogeneities) from …
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Fighting Forest Fires in the Western United States: an Educational Filmstrip and Manual for Teaching Forest Conservation
… for informing people about the methods of forest fire control employed in the Western United States. The project was specifically intended to assist the teacher of forest conservation at the seventh grade level, but it should also prove useful in teaching at other levels.
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A Study of Beaver Pond Morphology and Site Characteristics After Disturbance in Eastern Glacier National Park, Montana
… Mary Lake site was subjected to an extensive forest fire in the watershed in 2006. The latter two sites are adjacent to human-constructed reservoirs. Aerial photos were used to create maps in a Geography Information System for all three site locations over a twenty year span from 1991-2011. …
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Natural regeneration and ecological succession in Pinus kesiya watershed plantations in northern Thailand : implications on plantation management
… in Thailand began in the 1960s by the Royal Forest Department. The aim was to reforest abandoned swidden areas and grasslands in order to reduce erosion and to produce timber and fuel wood. Today there are about 150, 000 ha of P. kesiya plantations in northern Thailand. Most of these …
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