Advances in Earth Science ›› 2014, Vol. 29 ›› Issue (4): 464-474. doi: 10.11867/j.issn.1001-8166.2014.04.0464

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Review of Numerical Simulation Research on Urban Land Surface Characteristics

Meng Chunlei   

  1. Institute of Urban Meteorology, China Meteorological Administration, Beijing 100089, China
  • Received:2013-09-16 Online:2014-04-10 Published:2014-04-10

Meng Chunlei. Review of Numerical Simulation Research on Urban Land Surface Characteristics[J]. Advances in Earth Science, 2014, 29(4): 464-474.

Urbanization results in a suite of complex land surface-atmosphere interactions that modify thermodynamic, radiative, dynamic, and hydrometeorological processes within the urban area and its surrounding regional footprint. Now China is undergoing a rapid development period of urbanization, so urbanization influence research is crucial important for building the ecologically amenity city. This article reviews the numerical simulation research on urban land surface characteristics in three aspects. They are urban land surface characteristics observation and analysis; the influence mechanism and processes of the urban land surface characteristics on urban weather and climate; and the development of urban land surface model, respectively. Urbanization leads to increased patch fragmentation and diversity, which may be expressed as more edges or smaller patch sizes. Urban database is crucial important to parameterize urban land surface characteristics. At present, urban land surface energy balance has been studied at length, but research associated with urban land surface water balance and water cycle is far from enough. Varieties of urban canopy models have been developed and coupled with land surface model, but urban hydrology model need to be developed in the near future. Spin up is the only assimilation method for urban canopy model, but it needs the support of long-term observational and remote sensing data. The development of an integrated urban land surface model should be a solution for urban land surface processes simulation because it integrates the urban energy balance model, urban hydrology model and natural surface model and it should be assimilated through traditional method such as variation and filter.

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