One-size-fits-all approach is common in climate-sensitive urban design due to neglecting spatial heterogeneities in urban form and urban climate. This study explores a spatially-varied climate-sensitive urban design based on the Guangdong-Hong Kong-Macau Greater Bay Area (GBA). Three thermal indices, the Wet Bulb Globe Temperature (WBGT), the Apparent Temperature (AT), and the Universal Thermal Climate Index (UTCI) are used to assess the outdoor thermal environments. The local climate zone (LCZ) classification system is used to map urban form including built and land-cover types. Moreover, incorporating spatial effects, geographically weighted regression (GWR) models are used to account for spatially-varied thermal variations due to urban form changes. Our findings indicate that the large low-rise type (LCZ 8) needs more attention in built-up planning for thermal mitigation, and urban low plants type (LCZ D) should be a more effective nature-based climate mitigation strategy compared with the water bodies (LCZ G). The GWR results show a stronger consistency between UTCI and LCZ 8 and LCZ D, compared with WBGT and AT. UTCI is thus suggested for application in future urban climate studies. More importantly, the spatially-varied relationship between UTCI and urban form specifies the strategies and appropriate locations for thermal mitigation in climate-sensitive urban design.

由于忽视了城市形态和城市气候的空间异质性，一刀切的方法在气候敏感型城市设计中很常见。本研究探索了基于粤港澳大湾区 (GBA) 的空间变化的气候敏感型城市设计。三个热指数，即全球湿球温度 (WBGT)、表观温度 (AT) 和通用热气候指数 (UTCI) 用于评估室外热环境。当地气候区 (LCZ) 分类系统用于绘制城市形态，包括建成和土地覆盖类型。此外，结合空间效应，地理加权回归 (GWR) 模型用于解释由于城市形态变化而导致的空间变化热变化。我们的研究结果表明，大型低层类型（LCZ 8）在热缓解的建筑规划中需要更多关注，与水相比，城市低层植物类型（LCZ D）应该是一种更有效的基于自然的气候缓解策略机构（LCZ G）。与 WBGT 和 AT 相比，GWR 结果显示 UTCI 与 LCZ 8 和 LCZ D 之间的一致性更强。因此，建议在未来的城市气候研究中应用UTCI。更重要的是，UTCI 和城市形态之间的空间变化关系指定了气候敏感城市设计中热缓解的策略和适当的位置。与 WBGT 和 AT 相比，GWR 结果显示 UTCI 与 LCZ 8 和 LCZ D 之间的一致性更强。因此，建议在未来的城市气候研究中应用UTCI。更重要的是，UTCI 和城市形态之间的空间变化关系指定了气候敏感城市设计中热缓解的策略和适当的位置。与 WBGT 和 AT 相比，GWR 结果显示 UTCI 与 LCZ 8 和 LCZ D 之间的一致性更强。因此，建议在未来的城市气候研究中应用UTCI。更重要的是，UTCI 和城市形态之间的空间变化关系指定了气候敏感城市设计中热缓解的策略和适当的位置。