نتایج جستجو برای: urban climate

تعداد نتایج: 334492  

2016
Kevin Gallo George Xian

Two gridded data sets that included (1) daily mean temperatures from 2006 through 2011 and (2) satellite-derived impervious surface area, were combined for a spatial analysis of the urban heat-island effect within the Dallas-Ft. Worth Texas region. The primary advantage of using these combined datasets included the capability to designate each 1 1 km grid cell of available temperature data as u...

Journal: :Annals of the Academy of Medicine, Singapore 2006
Joyce Klein Rosenthal Paul W Brandt-Rauf

1 Doctoral candidate in urban planning Columbia University, Graduate School of Architecture, Planning & Preservation, New York City, USA 2 Chair of Department of Environmental Health Sciences, Mailman School of Public Health, New York City, USA 3 Professor of Medicine and Professor of Earth and Environmental Engineering, Columbia University, New York City, USA Address for Correspondence: Joyce ...

2014
Simon G. Haberle David M. J. S. Bowman Rewi M. Newnham Fay H. Johnston Paul J. Beggs Jeroen Buters Bradley Campbell Bircan Erbas Ian Godwin Brett J. Green Alfredo Huete Alison K. Jaggard Danielle Medek Frank Murray Ed Newbigin Michel Thibaudon Don Vicendese Grant J. Williamson Janet M. Davies

The composition and relative abundance of airborne pollen in urban areas of Australia and New Zealand are strongly influenced by geographical location, climate and land use. There is mounting evidence that the diversity and quality of airborne pollen is substantially modified by climate change and land-use yet there are insufficient data to project the future nature of these changes. Our study ...

2017
So Yoon Kim Brian H. S. Kim

Increasing precipitation by climate change and the growing number of impervious areas present greater risk of disaster damage in urban areas. Urban green infrastructure can be an effective mitigation alternative in highly developed and concentrated area. This study investigates the effect of various types of urban green infrastructure on mitigating disaster damage in Korea. Tobit model is used ...

2015
Daniel L. Childers Mary L. Cadenasso Brian McGrath Marc A. Rosen

Cities around the world are facing an ever-increasing variety of challenges that seem to make more sustainable urban futures elusive. Many of these challenges are being driven by, and exacerbated by, increases in urban populations and climate change. Novel solutions are needed today if our cities are to have any hope of more sustainable and resilient futures. Because most of the environmental i...

Journal: :محیط شناسی 0
علی اکبر شمسی پور هیئت علمی دانشکده جغرافیا، دانشگاه تهران صدرالدین علوی پناه دانشجوی دکتری رشته تغییرات جهانی اقلیم و محیط زیست، دانشکده جغرافیا، دانشگاه هومبولت، برلین سلمان قریشی دانشکده جغرافیا، دانشگاه هومبولت، برلین

1. introductionhumans have actively managed and transformed the world’s landscapes for millennia. after the industrial revolution (between 1820 and 1840) with increase in sanitation, food security and quality of life the human population increased tremendously. urbanization, the demographic transition from rural to urban, is associated with shifts from an agriculture-based economy to mass indus...

Journal: :محیط شناسی 0
سعید ورامش دانشجوی دکترای جنگلداری، دانشکدة منابع طبیعی و علوم دریایی دانشگاه تربیت مدرس سید محسن حسینی دانشیار گروه جنگلداری، دانشکدة منابع طبیعی و علوم دریایی دانشگاه تربیت مدرس. نوراله عبدی استادیار گروه مرتع و آبخیزداری، دانشکده کشاورزی و منابع طبیعی، دانشگاه آزاد اسلامی، واحد اراک

co2 is the main greenhouse gas which urban forests have a high potential to absorb and sequestrate it. the air pollution of tehran is one of the most important environmental problems of the iran. to do this research 40 years old stands of robinia pseudoacacia and fraxinus rotundifolia and the surrounding barren land ( as blank) were selected in chitgar forest park of tehran and the amount of ca...

2015
Yinghui Xiao

The Koppen Climate Classification system is one of the examples dissecting global climate process into uniform zones. Due to the fractal structure of geographic phenomenon, the classification of climate zones may be applied at different scales to promote further understanding of climate system at the human-environment interface. This research presents a workflow of classifying climate zones by ...

2013
Elisaveta P. Petkova Radley M. Horton Daniel A. Bader Patrick L. Kinney

Increased heat-related mortality is projected to be among the major impacts of climate change on human health, and the United States urban Northeast region is likely to be particularly vulnerable. In support of regional adaptation planning, quantitative information is needed on potential future health responses at the urban and regional scales. Here, we present future projections of heat-relate...

2017
Liyi Xu Erwan Monier Adam Schlosser Randolph Kirchain Jeremy Gregory erwan monier randolph Kirchain

The climate mitigation potential of U.S. urban infrastructure albedo enhancement is explored using multidecadal regional climate simulations. Increasing albedo from 0.2 to 0.4 results in summer daytime surface temperature decreases of 1.5°C, substantial reductions in health-related heat (50% decrease in days with danger heat advisory) and decreases in energy demand for air conditioning (15% dec...

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