Nav: Home

Researchers develop new EcoCity model for mitigating urban heat islands

June 06, 2017

Urban land-use/cover changes and their effects on the eco-environment have long been an active research topic in the urbanization field. Prof. KUANG Wenhui's group at the Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, has developed the EcoCity model for regulating urban land cover structures and thermal environments, and has established eco-regulation thresholds for urban surface thermal environments.

This research has shown that the difference in thermal environments among urban functional areas is closely related to the proportion of land-cover components. This work was published in Science China Earth Sciences.

The EcoCity model is based on the multidisciplinary integration of urban geography, urban climatology and urban ecology. The model is closely linked to "spatial location theory" in urban geography, "radiation and energy balance" in urban climatology, and provided the parameterization program for regulating land-cover components and thermal environment in urban planning and management application.

The EcoCity model can simulate the future urban expansion under different scenarios and predict the proportions of urban impervious surface areas and greenness, and the induced urban heat island effect. The core function of this model is the spatially-explicated information acquisition, including the proportion of impervious surface areas in different functional zones, the intensity of urban heat island, and the indexes of human comfort degree.

The results provide fundamental data for regulating the impervious surface ratios in different functional zones and supporting urban heat island mitigation in future urban expansion.

Using Beijing as a study area, the researchers found significantly different surface temperatures in different functional zones, especially between urban impervious surfaces and green space. What's more, the temperatures in various surface covers were different.

"The difference in thermal environments among various urban functional zones is closely related to the composition of major land covers," said Prof. KUANG.

"The analysis of ecological thresholds of impervious surfaces and green space within various functional zones shows their different roles in thermal regulation effects. The urban-rural frontier and urban interior structure are characterized by high dynamics, structural complexity, and land-cover mosaics, resulting in challenges in obtaining accurate results for urban land cover components."

The EcoCity model and associated high-precision data and map products have been applied in different fields such as environmental protection, urban planning, and earthquake recovery.
-end-


Chinese Academy of Sciences Headquarters

Related Green Space Articles:

When green means stop
Optogenetics has revolutionized how researchers investigate cellular behavior and the function of large and interconnected tissues such as the brain.
Experiment aboard space station studies 'space weather'
To study conditions in the ionosphere, Cornell University research engineer Steven Powell and others in the College of Engineering have developed the FOTON (Fast Orbital TEC for Orbit and Navigation) GPS receiver.
Buying green doesn't make you green: QUT study
Company bosses need to walk-the-walk when it comes to greening their business with technology, with new QUT research finding that just buying green IT, doesn't make you green.
For space station astronauts, spinal muscles shrink after months in space
While astronauts on long space missions do not experience a change in spinal disc height, the muscles supporting the spine weaken, find researchers at University of California San Diego School of Medicine.
France-Australia space cooperation: CNES and CSIRO sign space ballooning agreement
CNES President Jean-Yves Le Gall and CSIRO Chief Executive Larry Marshall signed a cooperation agreement for the PILOT mission which will map the direction and intensity of the Milky Way's magnetic field and gain new insights into the magnetic properties of interstellar dust grains.
Blue, green or 'nol'?
New Northwestern University research shows that even in infants too young to speak, the object categories infants form and their predictions about objects' behavior, are sculpted by the names we use to describe them.
Green Gitmo
Following President Obama's plans to close the military prison at Guantánamo Bay, Cuba, a conservation biologist and a professor of law are proposing to transform the naval base into a marine research center and international peace park.
Not-so-simple green
Two researchers from UCSB's Bren School examine the dark side of 'green' products.
Green Detergents developed from MIT Portugal Ph.D. thesis win the 'Green Project Awards'
Did you know that, when cleaning your house, you may also be polluting the planet?
Better catalysts for green energy
A new study, just published in Nature Materials, provides a detailed account of how to control the electron charge of nanoparticles of platinum, an important catalyst in fuel cells, to maximize the efficiency of the process.

Related Green Space Reading:

Best Science Podcasts 2019

We have hand picked the best science podcasts for 2019. Sit back and enjoy new science podcasts updated daily from your favorite science news services and scientists.
Now Playing: TED Radio Hour

Anthropomorphic
Do animals grieve? Do they have language or consciousness? For a long time, scientists resisted the urge to look for human qualities in animals. This hour, TED speakers explore how that is changing. Guests include biological anthropologist Barbara King, dolphin researcher Denise Herzing, primatologist Frans de Waal, and ecologist Carl Safina.
Now Playing: Science for the People

#SB2 2019 Science Birthday Minisode: Mary Golda Ross
Our second annual Science Birthday is here, and this year we celebrate the wonderful Mary Golda Ross, born 9 August 1908. She died in 2008 at age 99, but left a lasting mark on the science of rocketry and space exploration as an early woman in engineering, and one of the first Native Americans in engineering. Join Rachelle and Bethany for this very special birthday minisode celebrating Mary and her achievements. Thanks to our Patreons who make this show possible! Read more about Mary G. Ross: Interview with Mary Ross on Lash Publications International, by Laurel Sheppard Meet Mary Golda...