论文笔记10：Modelling the fine-scale spatiotemporal pattern of urban heat island effect using land use

SurmountH

于 2020-07-28 15:42:23 发布

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研究揭示了城市热岛(UHI)在高密度建成环境中，其空间模式主要由土地利用/覆盖(LU/LC)及城市地貌特征决定，尤其是在夜间。使用热红外卫星数据测量表面温度而非空气温度，导致大气UHI与表面UHI的日变化存在显著差异。

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Modelling the fine-scale spatiotemporal pattern of urban heat island effect using land use regression approach in a megacity

The study results indicate that the spatial pattern of UHI is largely determined by the LU/LC (RES1500, FVC500) and urban geomorphometry (h, BVD, λ F, Ψsky and z0) in a high-density built environment, especially during nighttime.

目前城市热岛研究中使用较广泛的数据是热红外卫星数据，存在问题：

The main issue of using satellite images is that the retrieved UHI measurements are based on land surface temperature (LST) not the ambient air temperature.
It is a known fact that the diurnal cycle of atmospheric UHI and surface UHI (SUHI) are considerably different.The atmospheric UHI is larger during nighttime while the SUHI is larger during the daytime.