A nonlinear and non-steady two-dimensional numerical model is used to study the thermal effect of urbanization on wind, temperature and vertical eddy diffusion coefficient and the evolution of nocturnal urban heat island circulation.

• 本文使用非定常非线性二维数值模式；研究夜间气流流经城市热岛上空引起的风场、温度场和垂直涡旋扩散参数的调整以及城市热岛环流的发展演变.