In this study, we investigated the intracity variation of humid heat in consideration of the contributions from temperature and humidity. Data were collected from mobile surveys in a mid-latitude industrial city. We found greater humid heat in built-up neighborhoods than in rural neighborhoods. Land surface temperature exaggerates the disparity in heat exposure as opposed to air temperature, although their spatial variations bear a strong resemblance. Humid heat is more variable across the city at night than during the day. Its nighttime variation is stronger in the cold season than in the warm season. Weather exerts a strong influence on the spatial variation in humid heat. The greatest variation was observed in the conditions of weak wind, low solar radiation, and high soil moisture in the day, and in the weak-wind and dry-soil conditions at night. The daytime humid heat increases in the built-up neighborhoods because these neighborhoods dissipate surface moist static energy less efficiently than the rural neighborhoods. The nighttime humid heat varies within the city mainly because the release of heat stored in the built-up neighborhoods is at a higher rate than the heat release from the rural soil.

中文翻译：

---

温度和湿度对湿热城市内部变化的贡献


在这项研究中，我们考虑了温度和湿度的贡献，调查了湿热的城内变化。数据是从中纬度工业城市的移动调查中收集的。我们发现，建筑社区的潮湿热量比农村社区更大。与空气温度相比，地表温度夸大了热暴露的差异，尽管它们的空间变化具有很强的相似性。夜间整个城市的湿热比白天更不稳定。寒冷季节的夜间变化比温暖季节强。天气对湿热的空间变化有很大影响。在白天弱风、低太阳辐射和高土壤湿度条件下，以及在夜间弱风和干燥土壤条件下观察到的最大变化。建筑社区白天的湿热增加，因为这些社区消散表面潮湿的静能的效率低于农村社区。城市内部夜间湿热的变化主要是因为建筑密集区储存的热量释放速度高于农村土壤释放热量的速度。