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Actuality of summer urban heat island and the impact of urban planning “wedge-shaped greenland” to reducing the intensity of urban heat island in Beijing. J Appl Meteor Sci, 2005, 16(3): 357-366. DOI:  10.11898/1001-7313.20050310.
Citation: Actuality of summer urban heat island and the impact of urban planning “wedge-shaped greenland” to reducing the intensity of urban heat island in Beijing. J Appl Meteor Sci, 2005, 16(3): 357-366. DOI:  10.11898/1001-7313.20050310.
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Actuality of Summer Urban Heat Island and the Impact of Urban Planning “Wedge-shaped Greenland” to Reducing the Intensity of Urban Heat Island in Beijing

  • 1.

    National Meteorological Center, Beijing 100081

  • 2.

    Institute of Atmospheric Physics, CAS, Beijing 100029

  • 3.

    Beijing Institute of Landscience Gardening, Beijing 100102

  • 4.

    Department of Atmospheric Sciences, School of Physics, Peking University, Beijing 100871

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    Abstract
  • Based on the remote sensing and surface observations, the actuality of urban heat island and the temperature distribution characteristics of urban land surface in Beijing are obtained. Using urban boundary layer model of Peking University, the study focuses on the impact of “Wedge-shaped greenland” plan on Beijing urban climate in the view of meteorology. This three-dimension urban boundary layer model is developed by using surface temperature calculated by energy balance model as lower boundary condition, and using mesoscale model MM5 as initial condition and lateral boundary conditions. This modeling system is used to investigate detailed structure of urban boundary layer under mesoscale background. Through case simulation, model system can simulate the characteristics of wind and temperature field correctly, and it can be used to do some test for the planning “Wedge-shaped greenland”. And the simulation result shows that this plan can reduce the temperature in and around the greenland, but it can result in the wind velocity reduction and bad ventilation in the downwind of the urban area.
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    • Received : 2003-09-02
    • Accepted : 2004-02-20
    • Published : 2005-05-31
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