Utility and optimization of LANDSAT-derived burned area maps for southern California

2020 ◽  
Vol 42 (2) ◽  
pp. 486-505
Author(s):  
Emanuel Arnal Storey ◽  
Krista R. Lee West ◽  
Douglas A. Stow
Ecosphere ◽  
2016 ◽  
Vol 7 (5) ◽  
Author(s):  
N. R. Faivre ◽  
Y. Jin ◽  
M. L. Goulden ◽  
J. T. Randerson

2012 ◽  
Vol 113 ◽  
pp. 301-307 ◽  
Author(s):  
Owen F. Price ◽  
Ross A. Bradstock ◽  
Jon E. Keeley ◽  
Alexandra D. Syphard

2014 ◽  
Vol 23 (8) ◽  
pp. 1119 ◽  
Author(s):  
Michael Billmire ◽  
Nancy H. F. French ◽  
Tatiana Loboda ◽  
R. Chris Owen ◽  
Marlene Tyner

Santa Ana winds have been implicated as a major driver of large wildfires in southern California. While numerous anecdotal reports exist, there is little quantitative analysis in peer-reviewed literature on how this weather phenomenon influences fire progression rates. We analysed fire progression within 158 fire events in southern California as a function of meteorologically defined Santa Ana conditions between 2001 and 2009. Our results show quantitatively that burned area per day is 3.5–4.5 times larger on Santa Ana days than on non-Santa Ana days. Santa Ana definition parameters (relative humidity, wind speed) along with other predictor variables (air temperature, fuel temperature, 10-h fuel moisture, population density, slope, fuel loading, previous-day burn perimeter) were tested individually and in combination for correlation with subsets of daily burned area. Relative humidity had the most consistently strong correlation with burned area per day. Gust and peak wind speed had a strong positive correlation with burned area per day particularly within subsets of burned area representing only the first day of a fire, >500 ha burned areas, and on Santa Ana days. The suite of variables comprising the best-fit generalised linear model for predicting burned area (R2 = 0.41) included relative humidity, peak wind speed, previous-day burn perimeter and two binary indicators for first and last day of a fire event.


2014 ◽  
Vol 23 (6) ◽  
pp. 799 ◽  
Author(s):  
Nicolas Faivre ◽  
Yufang Jin ◽  
Michael L. Goulden ◽  
James T. Randerson

Wildfire ignition requires a combination of an open spark, and suitable weather and fuel conditions. Models of fire occurrence and burned area provide a good understanding of the physical and climatic factors that constrain and promote fire spread and recurrence, but information on how humans influence ignition patterns is still lacking at a scale compatible with integrated fire management. We investigated the relative importance of the physical, climatic and human factors regulating ignition probability across Southern California’s National Forests. A 30-year exploratory analysis of one-way relationships indicated that distance to a road, distance to housing and topographic slope were the major determinants of ignition frequency. We used logistic and Poisson regression analyses to model ignition occurrence and frequency as a function of the dominant covariates. The resulting models explained ~70% of the spatial variability in ignition likelihood and 45% of the variability in ignition frequency. In turn, predicted ignition probability contributed to some of the spatial variability in burned area, particularly for summer fires. These models may enable estimates of fire ignition risk for the broader domain of Southern California and how this risk may change with future population and housing development. Our spatially explicit predictions may also be useful for strategic fire management in the region.


1981 ◽  
Vol 24 (1) ◽  
pp. 151-151
Author(s):  
Lillian Glass ◽  
Sharon R. Garber ◽  
T. Michael Speidel ◽  
Gerald M. Siegel ◽  
Edward Miller

An omission in the Table of Contents, December JSHR, has occurred. Lillian Glass, Ph.D., at the University of Southern California School of Medicine and School of Dentistry, was a co-author of the article "The Effects of Presentation on Noise and Dental Appliances on Speech" along with Sharon R. Garber, T. Michael Speidel, Gerald M. Siegel, and Edward Miller of the University of Minnesota, Minneapolis.


2001 ◽  
Vol 120 (5) ◽  
pp. A215-A216
Author(s):  
C CONTEAS ◽  
J PRUTHI ◽  
R BURCHETTE

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