The Urban Heat Island (UHI) phenomenon is frequently associated with heat waves, both in scientific literature and in the media. Health problems and other issues often result from the co-occurrence of these two phenomena. Previous studies have not yet provided sufficient evidence to validate potential links between UHIs and heat waves. The MUSTARDijon network was set up in 2014, in Dijon, France. Its spatial density (60 sensors) and temporal depth (6 summers) provide information about several Hot Spells and Heat Waves (HS&HW), as well as the daily intensity of UHIs. For the period from June to August (the warmer months), no statistical relationship could be established between temperature and UHI intensity. The UHI phenomenon is strong when days are sunny and not very windy; these two conditions are frequently met during HS&HW, but not systematically. By contrast, these conditions can be fulfilled even without high temperatures. Strong UHIs can thus develop outside Hot Spell/Heat Wave (HS/HW) events. These HS&HW are not necessarily in phase with UHIs: maximum UHI intensity tends to occur before the onset or during the first few days of HS&HW. The intensity of the UHI decreases during HS&HW because nocturnal urban temperature generally remains stationary, whereas rural temperature tends to increase at night. The hypothesis proposed is that this increase in rural night temperature during HS&HW could be linked to the decrease in Actual Evapotranspiration (ETa) and soil wetness.

在科学文献和媒体中，城市热岛（UHI）现象通常与热浪有关。健康问题和其他问题通常是由于这两种现象的共同产生。先前的研究尚未提供足够的证据来验证超高热与热浪之间的潜在联系。MUSTARDijon网络于2014年在法国第戎成立。它的空间密度（60个传感器）和时间深度（6个夏天）提供了有关几个热咒语和热浪（HS＆HW）以及超高热强度每日强度的信息。在6月至8月（较暖的月份）期间，温度和UHI强度之间没有建立统计关系。当天气晴朗而不是多风时，UHI现象很严重。HS＆HW经常满足这两个条件，但不是系统地。相反，即使没有高温也可以满足这些条件。因此，强大的UHI可以在热拼/热浪（HS / HW）事件之外发展。这些HS＆HW不一定与UHI处于同相状态：最大的UHI强度往往发生在HS＆HW发作之前或头几天。在HS＆HW期间，UHI的强度降低，因为夜间的城市温度通常保持稳定，而夜间的农村温度则趋于升高。提出的假设是，HS＆HW期间农村夜间温度的升高可能与实际蒸散量（ETa）和土壤湿度的降低有关。硬件不一定与UHI处于同相状态：最大的UHI强度往往发生在HS＆HW的发作之前或头几天。在HS＆HW期间，UHI的强度降低，因为夜间的城市温度通常保持稳定，而夜间的农村温度则趋于升高。提出的假设是，HS＆HW期间农村夜间温度的升高可能与实际蒸散量（ETa）和土壤湿度的降低有关。硬件不一定与UHI处于同相状态：最大的UHI强度往往发生在HS＆HW的发作之前或头几天。在HS＆HW期间，UHI的强度降低，因为夜间的城市温度通常保持稳定，而夜间的农村温度则趋于升高。提出的假设是，HS＆HW期间农村夜间温度的升高可能与实际蒸散量（ETa）和土壤湿度的降低有关。