نتایج جستجو برای: heat wave

تعداد نتایج: 415316  

2015
Kai Zhang Tsun-Hsuan Chen Charles E Begley

BACKGROUND Heat waves have been linked to increased risk of mortality and morbidity, and are projected to increase in frequency and intensity in a changing climate. Houston and other areas in Texas experienced an exceptional heat wave in the summer of 2011 producing the hottest August on record. This study aims to assess the health-related impact of this heat wave. METHODS Distributed lag mod...

P Sharma R Kumar,

In this paper the propagation of harmonic plane waves in a homogeneous anisotropic magneto-piezothermoelastic diffusive body with fractional order derivative is studied. The governing equations for a homogeneous transversely isotropic body in the context of the theory of thermoelasticity with diffusion given by Sherief et al. [1] are considered as a special case. It is found that three types of...

2014
Shia T. Kent Leslie A. McClure Benjamin F. Zaitchik Tiffany T. Smith Julia M. Gohlke

BACKGROUND A deeper understanding of how heat wave definition affects the relationship between heat exposure and health, especially as a function of rurality, will be useful in developing effective heat wave warning systems. OBJECTIVE We compared the relationships between different heat wave index (HI) definitions and preterm birth (PTB) and nonaccidental death (NAD) across urban and rural ar...

2016
Honglang Duan Jianping Wu Guomin Huang Shuangxi Zhou Wenfei Liu Yingchun Liao Xue Yang Zufei Xiao Houbao Fan

Heat waves in combination with drought are predicted to occur more frequently with climate warming, yet their interactive effects on crop carbon and water balance are still poorly understood. Hence, research on the capacity of crops to withstand and recover from the combined stress is urgently needed. This study investigated the effects of drought and heat wave on a crop species as well as the ...

H. Ghazizadeh M. Marefat,

Based on the recently introduced fractional Taylor’s formula, a fractional heat conduction constitutive equation is formulated by expanding the single-phase lag model using the fractional Taylor’s formula. Combining with the energy balance equation, the derived fractional heat conduction equation has been shown to be capable of modeling diffusion-to-Thermal wave behavior of heat propagation by ...

2010
Cascade J. B. Sorte Adam Fuller Matthew E. S. Bracken C. J. B. Sorte

Extreme events, such as heat waves, are predicted to increase in frequency, duration, and severity as a consequence of climate change. However, global change research generally focuses on increases in mean temperatures and fails to address the potential impacts of increasingly severe heat waves. In addition, climate change may interact with another primary threat to biodiversity, non-native spe...

2015
Dana Habeeb Jason Vargo Brian Stone

Exposures to dangerously high temperatures are a public health threat expected to increase with global climate change. Heat waves exacerbate the risks associated with heat exposure, and urban residents are particularly vulnerable to threats of heat waves due to the urban heat island effect. To understand how heat waves are changing over time, we examine changes in four heat wave characteristics...

2015
Kai Chen Lei Huang Lian Zhou Zongwei Ma Jun Bi Tiantian Li

To examine the spatial variation of stroke mortality risk during heat wave, we collected 418 stroke mortality cases with permanent addresses for a severe heat wave (July 28-August 15, 2010) and 624 cases for the reference period (July 29-August 16, 2009 and July 27-August 14, 2011) in Nanjing, China. Generalized additive models were used to explore the association between location and stroke mo...

اعتمادیان, الهه, دوستان, رضا,

Climate risks are the inherent features of Earth's climate. The occurence of heat wave is one of these natural phenomena. Heat waves, one of the basic appearances of climate change, are very important because of frequency and damage of life and property, (Haddow et al, 2008). Frequency of heat wave occurence in recent years, is one of the aspects of climatic changes and extreme weather (Matthie...

2014
Kai Zhang Yeh-Hsin Chen Joel D. Schwartz Richard B. Rood Marie S. O’Neill

BACKGROUND Heat wave and health warning systems are activated based on forecasts of health-threatening hot weather. OBJECTIVE We estimated heat-mortality associations based on forecast and observed weather data in Detroit, Michigan, and compared the accuracy of forecast products for predicting heat waves. METHODS We derived and compared apparent temperature (AT) and heat wave days (with hea...

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