نتایج جستجو برای: wildfire

تعداد نتایج: 3925  

Journal: :Ecology 2015
Sharon Hood Anna Sala Emily K Heyerdahl Marion Boutin

Induced defense is a common plant strategy in response to herbivory. Although abiotic damage, such as physical wounding, pruning, and heating, can induce plant defense, the effect of such damage by large-scale abiotic disturbances on induced defenses has not been explored and could have important consequences for plant survival facing future biotic disturbances. Historically, low-severity wildf...

2016
Adam Walker Rodney Pope Robin Marc Orr

BACKGROUND Firefighting is a highly stressful occupation with unique physical challenges, apparel and environments that increase the potential for dehydration. Dehydration leaves the firefighter at risk of harm to their health, safety and performance. The purpose of this review was to critically analyse the current literature investigating the impact of fighting 'live' fires on firefighter hydr...

Journal: :Journal of environmental quality 2006
Jeffrey J Whicker John E Pinder David D Breshears

Assessments of contaminant-related human and ecological risk require estimation of transport rates, but few data exist on wind-driven transport rates in nonagricultural systems, particularly in response to ecosystem disturbances such as forest wildfire and also relative to water-driven transport. The Cerro Grande wildfire in May of 2000 burned across ponderosa pine (Pinus ponderosa Douglas ex P...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Jennifer K Balch Bethany A Bradley John T Abatzoglou R Chelsea Nagy Emily J Fusco Adam L Mahood

The economic and ecological costs of wildfire in the United States have risen substantially in recent decades. Although climate change has likely enabled a portion of the increase in wildfire activity, the direct role of people in increasing wildfire activity has been largely overlooked. We evaluate over 1.5 million government records of wildfires that had to be extinguished or managed by state...

2006
Isaac J. Larsen Joel L. Pederson John C. Schmidt

As in many areas of high relief, debris flows are an important process linkage between hillslopes and the Green River in the canyons of the eastern Uinta Mountains, yet the physical conditions that lead to debris flow initiation are unknown. A recent episode of enhanced debris-flow and wildfire activity provided an opportunity to examine the geomorphic impact of fire and the processes by which ...

2011
A. L. Westerling B. P. Bryant H. K. Preisler T. P. Holmes H. G. Hidalgo S. R. Shrestha

Large wildfire occurrence and burned area are modeled using hydroclimate and landsurface characteristics under a range of future climate and development scenarios. The range of uncertainty for future wildfire regimes is analyzed over two emissions pathways (the Special Report on Emissions Scenarios [SRES] A2 and B1 scenarios); three global climate models (Centre National de Recherches Météorolo...

Journal: :Journal of public health management and practice : JPHMP 2015
Adam Resnick Brian Woods Heidi Krapfl Barbara Toth

OBJECTIVE This study examined the association between PM2.5 levels and emergency department (ED) visits for selected health outcomes in Albuquerque, New Mexico, during the Wallow fire of 2011. DESIGN Measurements of 24-hour average concentrations of PM2.5 obtained from the City of Albuquerque were used to calculate wildfire smoke exposure in Albuquerque. Daily ED visits were collected by the ...

Journal: :Remote Sensing 2018
Kangjoon Cho Yonghyun Kim Yongil Kim

Thermal data products derived from remotely sensed data play significant roles as key parameters for biophysical phenomena. However, a trade-off between spatial and spectral resolutions has existed in thermal infrared (TIR) remote sensing systems, with the end product being the limited resolution of the TIR sensor. In order to treat this problem, various disaggregation methods of TIR data, base...

2017
Daniel R. Miller Isla S. Castañeda Raymond S. Bradley Dana MacDonald

Climatic and environmental change has a direct effect on wildfire frequencies and distributions throughout many regions of the world. Reconstructions from natural archives such as lake sediments can extend temporally limited historical records of regional wildfire activity over longer timescales through sedimentary charcoal analysis or examining polycyclic aromatic hydrocarbon (PAH) concentrati...

2015
X. Yue

We estimate future area burned in the Alaskan and Canadian forest by the mid-century (2046–2065) based on the simulated meteorology from 13 climate models under the A1B scenario. We develop ecoregion-dependent regressions using observed relationships between annual total area burned and a suite of meteorological variables and fire weather indices, and apply these regressions to the simulated me...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید